WO2021037034A1

WO2021037034A1 - Method for switching state of application, and terminal device

Info

Publication number: WO2021037034A1
Application number: PCT/CN2020/111198
Authority: WO
Inventors: 王超
Original assignee: 华为技术有限公司
Priority date: 2019-08-30
Filing date: 2020-08-26
Publication date: 2021-03-04
Also published as: CN110609650B; CN110609650A

Abstract

Disclosed is a method for switching the state of an application, wherein the method is applied to a terminal device. The terminal device comprises a first screen and a second screen. The method comprises: receiving a first touch operation of a user on the second screen; and in response to the first touch operation, switching the state of a first application from a non-foreground state to a foreground state, and displaying the interface of the first application on the first screen. It can be seen that by means of implementing the embodiments of the present application, a user can switch a first application to the foreground only by means of performing a touch operation on a second screen, thus improving the convenience of switching the state of an application.

Description

Application state switching method and terminal equipment

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office on August 30, 2019, the application number is 201910817903.1, and the application name is "A method and terminal device for application state switching", the entire content of which is incorporated herein by reference. Applying.

Technical field

This application relates to the field of terminal technology, and in particular to an application state switching method and terminal equipment.

Background technique

Currently, applications on terminal devices usually have two states, namely the foreground state and the background state. When the application is in the foreground, the screen can display the interface of the application and perform related functions of the application. When the application is in the background state, the screen cannot display the application interface, and some functions of the application are restricted. For example, for a video application, if the video application is in the foreground, the screen of the terminal device will display the interface of the video application. The video application will handle the user's click event, and can play videos, etc. If the video application is switched to the background state, the screen of the terminal device will not display the interface of the video application. The video application will not process the user's click event, and will not continue to play the video. Since the terminal device usually installs multiple applications, the application state is often switched. In existing practical applications, the process of switching application states is complicated and not convenient. For example, as shown in Figure 1, the user first needs to open the application switching interface. The application switching interface includes a window corresponding to the application in the background state. As shown in Figure 1, if the user wants to switch application 1 to the foreground, the user needs to slide the application window in the application switching interface to the right, find the window of application 1, and then click the window corresponding to application 1 to switch application 1 to The foreground state. Therefore, how to simplify the application state switching process and improve the convenience of application state switching is a problem to be solved urgently at present.

Summary of the invention

The embodiments of the present application provide an application state switching method and terminal device, which are beneficial to improve the convenience of application state switching.

In the first aspect, an embodiment of the present application provides an application state switching method applied to a terminal device. The terminal device includes a first screen and a second screen. The method includes: receiving a user's first touch operation on the second screen; According to the first touch operation, the state of the first application is switched from the non-foreground state to the foreground state, and the interface of the first application is displayed on the first screen. It can be seen that by implementing the method described in the first aspect, the user can switch the first application to the foreground by performing a touch operation on the second screen, which improves the convenience of application state switching.

As an optional implementation manner, the terminal device has a folding screen. The folding screen includes a first screen and a second screen. The specific implementation manner for receiving the first touch operation of the user on the second screen is as follows: When the folding angle between the screens reaches the preset angle, receiving the user's first touch operation on the second screen. Based on this embodiment, when the folding angle between the first screen and the second screen reaches the preset angle, a touch operation on the second screen of the folding screen can conveniently switch the front and back applications.

As an optional implementation manner, the first application is a quasi-foreground commonly used application preset by the user, the non-foreground state of the quasi-foreground commonly used application is the quasi-foreground state, and the same application has more functions in the quasi-foreground state than in the background state. The first application is the frequently used background application preset by the user, and the non-foreground state of the frequently used background application is the background state; or the first application is the non-foreground state The first application in the application to switch to the non-foreground state.

By setting frequently used applications as quasi-foreground frequently used applications, it is beneficial to quickly and conveniently switch the state of commonly used applications, and is beneficial to improve the performance of the terminal device and save resources. By setting frequently used applications as frequently used applications in the background, it is beneficial to quickly and conveniently switch the status of frequently used applications.

As an optional implementation manner, the first application is a frequently used application in the foreground or a frequently used background application; the second screen includes one or more display areas, and the display areas in the one or more display areas are compared with the preset commonly used applications. There is a one-to-one correspondence between applications, and the preset common applications include quasi-front-end common applications and/or back-end common applications. The first application is specifically a common application corresponding to the display area touched by the touch operation. By implementing this optional implementation manner, it is beneficial for the user to flexibly select the quasi-foreground common applications or the background common applications for state switching.

As an optional implementation manner, the interface or icon or name of the frequently-used applications in the front-end is displayed in the display area corresponding to the frequently-used applications in the front-end, and/or the icons of the frequently-used applications in the background are displayed in the display area corresponding to the frequently-used applications in the background Or name. By implementing this optional implementation manner, it is beneficial for the user to distinguish applications corresponding to the display area.

As an optional implementation manner, the interface or icon or name of the frequently-used applications in the front-end is displayed in the display area corresponding to the frequently-used applications in the front-end, and/or the icons of the frequently-used applications in the background are displayed in the display area corresponding to the frequently-used applications in the background Or the specific implementation of the name is: when it is detected that the second screen is facing upwards, the interface or icon or name of the frequently used application in the prospective foreground is displayed in the display area corresponding to the frequently used application in the prospective foreground, and/or the corresponding frequently used application in the background The icons or names of frequently used background applications are displayed in the display area. By implementing this optional implementation manner, it is beneficial to save the power of the terminal equipment.

As an optional implementation manner, the terminal device may also perform the following steps: receive the user's second touch operation on the target area in one or more display areas; respond to the second touch operation, output an application list, and the application list Including multiple applications; receiving the user's selection operation on the application in the application list; setting the application selected by the selection operation as the common application corresponding to the target area. By implementing this optional implementation manner, the application corresponding to the display area can be conveniently set.

As an optional implementation manner, in response to the first touch operation, the state of the first application is switched from the non-foreground state to the foreground state, and the interface of the first application is displayed on the first screen. The specific implementation manner is: respond to the first Touch operation to determine whether the first application is started; if the first application is started, and the state of the first application is not the foreground state, the state of the first application is switched from the non-foreground state to the foreground state and displayed on the first screen The interface of the first application; the terminal device can also start the first application when the first application is not started, and display the interface of the first application on the first screen. By implementing this embodiment, when the user switches the application to the foreground, if the application is not started, the application can also be started, and the application can be displayed in the foreground.

In a second aspect, a terminal device is provided, which can execute the foregoing first aspect or the method in any one of the optional implementation manners of the first aspect. This function can be realized by hardware, or by hardware executing corresponding software. The hardware or software includes one or more units corresponding to the above-mentioned functions. The unit can be software and/or hardware. Based on the same inventive concept, the principle and beneficial effects of the terminal device for solving the problem can be referred to the above-mentioned first aspect and any one of the optional implementation manners and beneficial effects of the first aspect, and the repetition will not be repeated.

In a third aspect, a terminal device is provided. The terminal device includes a processor and a memory connected to the processor; wherein the memory includes computer-readable instructions; the processor is used to execute the computer-readable instructions in the memory, Thereby, the terminal device executes the above-mentioned first aspect or the solution in any one of the optional implementation manners of the first aspect. For the implementation manner and beneficial effects of the terminal device to solve the problem, reference may be made to the foregoing first aspect or any one of the optional implementation manners and beneficial effects of the first aspect, and repetitions are not repeated here.

In a fourth aspect, a computer program product is provided, which when running on a computer, causes the computer to execute the method in the first aspect or any one of the optional implementations of the first aspect.

In a fifth aspect, a chip product is provided, which implements the first aspect or the method in any one of the optional implementations of the first aspect.

In a sixth aspect, a computer-readable storage medium is provided, and instructions are stored in the computer-readable storage medium, which when run on a computer, cause the computer to execute the first aspect or any one of the first aspects. The method in an alternative embodiment.

Description of the drawings

FIG. 1 is a schematic diagram of an existing flow of application state switching;

FIG. 2 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

Fig. 3 is a schematic diagram of a software architecture of a terminal device provided by an embodiment of the present application;

FIG. 4 is a schematic flowchart of an application state switching method provided by an embodiment of the present application;

FIG. 5 is a schematic diagram of a folding screen provided by an embodiment of the present application;

FIG. 6 is a schematic diagram of another folding screen provided by an embodiment of the present application;

Figures 7 to 10 are schematic diagrams of application state switching provided by embodiments of the present application;

FIG. 11 is a schematic diagram of a display area of a second screen provided by an embodiment of the present application;

FIG. 12 is a schematic diagram of an application corresponding to setting a display area provided by an embodiment of the present application;

FIG. 13 is a schematic diagram of releasing the corresponding relationship between a display area and an application provided by an embodiment of the present application;

FIG. 14 is a schematic diagram of releasing the corresponding relationship between the display area and the application provided by an embodiment of the present application;

15 is a schematic diagram of the position of the mobile display area provided by an embodiment of the present application;

FIG. 16 is a schematic diagram of adding a display area provided by an embodiment of the present application;

FIG. 17 is a schematic diagram of deleting a display area provided by an embodiment of the present application;

FIG. 18 is a schematic structural diagram of a terminal device provided by an embodiment of the present application;

FIG. 19 is a schematic diagram of a first screen and a second screen provided by an embodiment of the present application;

FIG. 20 is a schematic diagram of application state switching provided by an embodiment of the present application.

detailed description

The specific embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

In order to improve the convenience of application state switching, embodiments of the present application provide an application state switching method and terminal device.

In order to better understand the embodiments of the present application, the structure of the user terminal in the embodiments of the present application is introduced below:

FIG. 2 shows a schematic diagram of the structure of the terminal device 200. The terminal device 200 may include a processor 210, an external memory interface 220, an internal memory 221, a universal serial bus (USB) interface 230, a charging management module 240, a power management module 241, a battery 242, antenna 1, antenna 2 , Mobile communication module 250, wireless communication module 260, audio module 270, speaker 270A, receiver 270B, microphone 270C, earphone jack 270D, sensor module 280, buttons 290, motor 291, indicator 292, camera 293, display 294, and Subscriber identification module (subscriber identification module, SIM) card interface 295, etc. The sensor module 280 may include a pressure sensor 280A, a gyroscope sensor 280B, an air pressure sensor 280C, a magnetic sensor 280D, an acceleration sensor 280E, a distance sensor 280F, a proximity light sensor 280G, a fingerprint sensor 280H, a temperature sensor 280J, a touch sensor 280K, and ambient light Sensor 280L, bone conduction sensor 280M, etc.

It can be understood that the structure illustrated in the embodiment of the present invention does not constitute a specific limitation on the terminal device 200. In other embodiments of the present application, the terminal device 200 may include more or fewer components than shown, or combine certain components, or split certain components, or arrange different components. The illustrated components can be implemented in hardware, software, or a combination of software and hardware.

The processor 210 may include one or more processing units. For example, the processor 210 may include an application processor (AP), a modem processor, a graphics processing unit (GPU), and an image signal processor. (image signal processor, ISP), controller, video codec, digital signal processor (digital signal processor, DSP), baseband processor, and/or neural-network processing unit (NPU), etc. Among them, the different processing units may be independent devices or integrated in one or more processors.

The controller can generate operation control signals according to the instruction operation code and timing signals to complete the control of fetching and executing instructions.

A memory may also be provided in the processor 210 for storing instructions and data. In some embodiments, the memory in the processor 210 is a cache memory. The memory can store instructions or data that have just been used or recycled by the processor 210. If the processor 210 needs to use the instruction or data again, it can be directly called from the memory. Repeated access is avoided, the waiting time of the processor 210 is reduced, and the efficiency of the system is improved.

In some embodiments, the processor 210 may include one or more interfaces. Interfaces can include integrated circuit (I2C) interfaces, integrated circuit built-in audio (inter-integrated circuit sound, I2S) interfaces, pulse code modulation (PCM) interfaces, universal asynchronous transmitters receiver/transmitter, UART) interface, mobile industry processor interface (MIPI), general-purpose input/output (GPIO) interface, subscriber identity module (SIM) interface, and / Or Universal Serial Bus (USB) interface, etc.

The I2C interface is a bidirectional synchronous serial bus, which includes a serial data line (SDA) and a serial clock line (SCL). In some embodiments, the processor 210 may include multiple sets of I2C buses. The processor 210 may be coupled to the touch sensor 280K, charger, flash, camera 293, etc., respectively through different I2C bus interfaces. For example, the processor 210 may couple the touch sensor 280K through an I2C interface, so that the processor 210 and the touch sensor 280K communicate through the I2C bus interface to implement the touch function of the terminal device 200.

The I2S interface can be used for audio communication. In some embodiments, the processor 210 may include multiple sets of I2S buses. The processor 210 may be coupled with the audio module 270 through an I2S bus to implement communication between the processor 210 and the audio module 270. In some embodiments, the audio module 270 may transmit audio signals to the wireless communication module 260 through an I2S interface, so as to realize the function of answering calls through a Bluetooth headset.

The PCM interface can also be used for audio communication to sample, quantize and encode analog signals. In some embodiments, the audio module 270 and the wireless communication module 260 may be coupled through a PCM bus interface. In some embodiments, the audio module 270 may also transmit audio signals to the wireless communication module 260 through the PCM interface, so as to realize the function of answering calls through the Bluetooth headset. Both the I2S interface and the PCM interface can be used for audio communication.

The UART interface is a universal serial data bus used for asynchronous communication. The bus can be a two-way communication bus. It converts the data to be transmitted between serial communication and parallel communication. In some embodiments, the UART interface is generally used to connect the processor 210 and the wireless communication module 260. For example, the processor 210 communicates with the Bluetooth module in the wireless communication module 260 through the UART interface to realize the Bluetooth function. In some embodiments, the audio module 270 may transmit audio signals to the wireless communication module 260 through the UART interface, so as to realize the function of playing music through the Bluetooth headset.

The MIPI interface can be used to connect the processor 210 with the display screen 294, the camera 293 and other peripheral devices. The MIPI interface includes a camera serial interface (camera serial interface, CSI), a display serial interface (display serial interface, DSI), and so on. In some embodiments, the processor 210 and the camera 293 communicate through a CSI interface to implement the shooting function of the terminal device 200. The processor 210 and the display screen 294 communicate through a DSI interface to realize the display function of the terminal device 200.

The GPIO interface can be configured through software. The GPIO interface can be configured as a control signal or as a data signal. In some embodiments, the GPIO interface can be used to connect the processor 210 with the camera 293, the display screen 294, the wireless communication module 260, the audio module 270, the sensor module 280, and so on. The GPIO interface can also be configured as an I2C interface, I2S interface, UART interface, MIPI interface, etc.

The USB interface 230 is an interface that complies with the USB standard specifications, and specifically may be a Mini USB interface, a Micro USB interface, a USB Type C interface, and so on. The USB interface 230 can be used to connect a charger to charge the terminal device 200, and can also be used to transfer data between the terminal device 200 and peripheral devices. It can also be used to connect earphones and play audio through earphones. This interface can also be used to connect to other terminal devices, such as AR devices.

It can be understood that the interface connection relationship between the modules illustrated in the embodiment of the present invention is merely a schematic description, and does not constitute a structural limitation of the terminal device 200. In other embodiments of the present application, the terminal device 200 may also adopt different interface connection modes in the foregoing embodiments, or a combination of multiple interface connection modes.

The charging management module 240 is used to receive charging input from the charger. Among them, the charger can be a wireless charger or a wired charger. In some wired charging embodiments, the charging management module 240 may receive the charging input of the wired charger through the USB interface 230. In some embodiments of wireless charging, the charging management module 240 may receive the wireless charging input through the wireless charging coil of the terminal device 200. While the charging management module 240 charges the battery 242, it can also supply power to the terminal device through the power management module 241.

The power management module 241 is used to connect the battery 242, the charging management module 240 and the processor 210. The power management module 241 receives input from the battery 242 and/or the charging management module 240, and supplies power to the processor 210, the internal memory 221, the display screen 294, the camera 293, and the wireless communication module 260. The power management module 241 can also be used to monitor parameters such as battery capacity, battery cycle times, and battery health status (leakage, impedance). In some other embodiments, the power management module 241 may also be provided in the processor 210. In other embodiments, the power management module 241 and the charging management module 240 may also be provided in the same device.

The wireless communication function of the terminal device 200 can be implemented by the antenna 1, the antenna 2, the mobile communication module 250, the wireless communication module 260, the modem processor, and the baseband processor.

The antenna 1 and the antenna 2 are used to transmit and receive electromagnetic wave signals. Each antenna in the terminal device 200 can be used to cover a single or multiple communication frequency bands. Different antennas can also be reused to improve antenna utilization. For example: Antenna 1 can be multiplexed as a diversity antenna of a wireless local area network. In other embodiments, the antenna can be used in combination with a tuning switch.

The mobile communication module 250 may provide a wireless communication solution including 2G/3G/4G/5G and the like applied to the terminal device 200. The mobile communication module 250 may include at least one filter, a switch, a power amplifier, a low noise amplifier (LNA), and the like. The mobile communication module 250 can receive electromagnetic waves by the antenna 1, and perform processing such as filtering, amplifying and transmitting the received electromagnetic waves to the modem processor for demodulation. The mobile communication module 250 can also amplify the signal modulated by the modem processor, and convert it into electromagnetic wave radiation via the antenna 1. In some embodiments, at least part of the functional modules of the mobile communication module 250 may be provided in the processor 210. In some embodiments, at least part of the functional modules of the mobile communication module 250 and at least part of the modules of the processor 210 may be provided in the same device.

The modem processor may include a modulator and a demodulator. Among them, the modulator is used to modulate the low frequency baseband signal to be sent into a medium and high frequency signal. The demodulator is used to demodulate the received electromagnetic wave signal into a low-frequency baseband signal. Then the demodulator transmits the demodulated low-frequency baseband signal to the baseband processor for processing. After the low-frequency baseband signal is processed by the baseband processor, it is passed to the application processor. The application processor outputs a sound signal through an audio device (not limited to a speaker 270A, a receiver 270B, etc.), or displays an image or video through the display screen 294. In some embodiments, the modem processor may be an independent device. In other embodiments, the modem processor may be independent of the processor 210 and be provided in the same device as the mobile communication module 250 or other functional modules.

The wireless communication module 260 can provide applications on the terminal device 200 including wireless local area networks (WLAN) (such as wireless fidelity (Wi-Fi) networks), bluetooth (BT), and global navigation satellites. System (global navigation satellite system, GNSS), frequency modulation (frequency modulation, FM), near field communication technology (near field communication, NFC), infrared technology (infrared, IR) and other wireless communication solutions. The wireless communication module 260 may be one or more devices integrating at least one communication processing module. The wireless communication module 260 receives electromagnetic waves via the antenna 2, frequency modulates and filters the electromagnetic wave signals, and sends the processed signals to the processor 210. The wireless communication module 260 may also receive a signal to be sent from the processor 210, perform frequency modulation, amplify, and convert it into electromagnetic waves to radiate through the antenna 2.

In some embodiments, the antenna 1 of the terminal device 200 is coupled with the mobile communication module 250, and the antenna 2 is coupled with the wireless communication module 260, so that the terminal device 200 can communicate with the network and other devices through wireless communication technology. The wireless communication technology may include global system for mobile communications (GSM), general packet radio service (GPRS), code division multiple access (CDMA), broadband Code division multiple access (wideband code division multiple access, WCDMA), time-division code division multiple access (TD-SCDMA), long term evolution (LTE), BT, GNSS, WLAN, NFC , FM, and/or IR technology, etc. The GNSS may include global positioning system (GPS), global navigation satellite system (GLONASS), Beidou navigation satellite system (BDS), quasi-zenith satellite system (quasi -zenith satellite system, QZSS) and/or satellite-based augmentation systems (SBAS).

The terminal device 200 implements a display function through a GPU, a display screen 294, and an application processor. The GPU is an image processing microprocessor, which is connected to the display screen 294 and the application processor. The GPU is used to perform mathematical and geometric calculations for graphics rendering. The processor 210 may include one or more GPUs that execute program instructions to generate or change display information.

The display screen 294 is used to display images, videos, and the like. The display screen 294 includes a display panel. The display panel can adopt liquid crystal display (LCD), organic light-emitting diode (OLED), active matrix organic light-emitting diode or active-matrix organic light-emitting diode (active-matrix organic light-emitting diode). AMOLED, flexible light-emitting diode (FLED), Miniled, MicroLed, Micro-oLed, quantum dot light-emitting diode (QLED), etc. In some embodiments, the terminal device 200 may include one or N display screens 294, and N is a positive integer greater than one. In this embodiment of the application, the display screen 294 of the terminal device includes a first screen and a second screen. The first screen can be the main screen, and the second screen can be the secondary screen. The terminal device may include a folding screen, and the folding screen includes a first screen and a second screen. When the folding angle between the first screen and the second screen reaches 180°, the first screen and the second screen are in a completely back-to-back form. At this time, the first screen is used to display the interface of the application in the foreground state. Or, the first screen and the second screen may not belong to the folding screen. The terminal device includes a display screen that is not foldable. The display screen is logically divided to obtain two logically divided screens, namely the first screen and the second screen.

The terminal device 200 can implement a shooting function through an ISP, a camera 293, a video codec, a GPU, a display screen 294, and an application processor.

The ISP is used to process the data fed back by the camera 293. For example, when taking a picture, the shutter is opened, the light is transmitted to the photosensitive element of the camera through the lens, the light signal is converted into an electrical signal, and the photosensitive element of the camera transmits the electrical signal to the ISP for processing and is converted into an image visible to the naked eye. ISP can also optimize the image noise, brightness, and skin color. ISP can also optimize the exposure, color temperature and other parameters of the shooting scene. In some embodiments, the ISP may be provided in the camera 293.

The camera 293 is used to capture still images or videos. The object generates an optical image through the lens and is projected to the photosensitive element. The photosensitive element may be a charge coupled device (CCD) or a complementary metal-oxide-semiconductor (CMOS) phototransistor. The photosensitive element converts the optical signal into an electrical signal, and then transfers the electrical signal to the ISP to convert it into a digital image signal. ISP outputs digital image signals to DSP for processing. DSP converts digital image signals into standard RGB, YUV and other formats of image signals. In some embodiments, the terminal device 200 may include 1 or N cameras 293, and N is a positive integer greater than 1.

Digital signal processors are used to process digital signals. In addition to digital image signals, they can also process other digital signals. For example, when the terminal device 200 selects the frequency point, the digital signal processor is used to perform Fourier transform on the energy of the frequency point.

Video codecs are used to compress or decompress digital video. The terminal device 200 may support one or more video codecs. In this way, the terminal device 200 can play or record videos in multiple encoding formats, such as: moving picture experts group (MPEG) 1, MPEG2, MPEG3, MPEG4, and so on.

NPU is a neural-network (NN) computing processor. By drawing on the structure of biological neural networks, for example, the transfer mode between human brain neurons, it can quickly process input information, and it can also continuously self-learn. Through the NPU, applications such as intelligent cognition of the terminal device 200 can be realized, such as: image recognition, face recognition, voice recognition, text understanding, and so on.

The external memory interface 220 may be used to connect an external memory card, such as a Micro SD card, to expand the storage capacity of the terminal device 200. The external memory card communicates with the processor 210 through the external memory interface 220 to realize the data storage function. For example, save music, video and other files in an external memory card.

The internal memory 221 may be used to store computer executable program code, where the executable program code includes instructions. The internal memory 221 may include a storage program area and a storage data area. Among them, the storage program area can store an operating system, at least one application program (such as a sound playback function, an image playback function, etc.) required by at least one function. The data storage area can store data (such as audio data, phone book, etc.) created during the use of the terminal device 200. In addition, the internal memory 221 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, a flash memory device, a universal flash storage (UFS), and the like. The processor 210 executes various functional applications and data processing of the terminal device 200 by running instructions stored in the internal memory 221 and/or instructions stored in a memory provided in the processor.

The terminal device 200 can implement audio functions through an audio module 270, a speaker 270A, a receiver 270B, a microphone 270C, a headphone interface 270D, and an application processor. For example, music playback, recording, etc.

The audio module 270 is used for converting digital audio information into an analog audio signal for output, and also for converting an analog audio input into a digital audio signal. The audio module 270 can also be used to encode and decode audio signals. In some embodiments, the audio module 270 may be provided in the processor 210, or part of the functional modules of the audio module 270 may be provided in the processor 210.

The speaker 270A, also called "speaker", is used to convert audio electrical signals into sound signals. The terminal device 200 can listen to music through the speaker 270A, or listen to a hands-free call.

The receiver 270B, also called "earpiece", is used to convert audio electrical signals into sound signals. When the terminal device 200 answers a call or voice message, it can receive the voice by bringing the receiver 270B close to the human ear.

Microphone 270C, also called "microphone", "microphone", is used to convert sound signals into electrical signals. When making a call or sending a voice message, the user can make a sound by approaching the microphone 270C through the human mouth, and input the sound signal into the microphone 270C. The terminal device 200 may be provided with at least one microphone 270C. In some other embodiments, the terminal device 200 may be provided with two microphones 270C, which can implement noise reduction functions in addition to collecting sound signals. In other embodiments, the terminal device 200 may also be provided with three, four or more microphones 270C to collect sound signals, reduce noise, identify sound sources, and realize directional recording functions.

The earphone interface 270D is used to connect wired earphones. The earphone interface 270D may be a USB interface 230, or a 3.5mm open mobile terminal platform (OMTP) standard interface, or a cellular telecommunications industry association (cellular telecommunications industry association of the USA, CTIA) standard interface.

The pressure sensor 280A is used to sense the pressure signal and can convert the pressure signal into an electrical signal. In some embodiments, the pressure sensor 280A may be provided on the display screen 294. There are many types of pressure sensors 280A, such as resistive pressure sensors, inductive pressure sensors, capacitive pressure sensors and so on. The capacitive pressure sensor may include at least two parallel plates with conductive material. When a force is applied to the pressure sensor 280A, the capacitance between the electrodes changes. The terminal device 200 determines the strength of the pressure according to the change in capacitance. When a touch operation acts on the display screen 294, the terminal device 200 detects the intensity of the touch operation according to the pressure sensor 280A. The terminal device 200 may also calculate the touched position based on the detection signal of the pressure sensor 280A. In some embodiments, touch operations that act on the same touch position but have different touch operation strengths may correspond to different operation instructions. For example, when a touch operation whose intensity of the touch operation is less than the first pressure threshold is applied to the short message application icon, an instruction to view the short message is executed. When a touch operation with a touch operation intensity greater than or equal to the first pressure threshold acts on the short message application icon, an instruction to create a new short message is executed.

The gyro sensor 280B may be used to determine the movement posture of the terminal device 200. In some embodiments, the angular velocity of the terminal device 200 around three axes (ie, x, y, and z axes) can be determined by the gyroscope sensor 280B. The gyro sensor 280B can be used for image stabilization. Exemplarily, when the shutter is pressed, the gyroscope sensor 280B detects the shaking angle of the terminal device 200, and calculates the distance that the lens module needs to compensate according to the angle, so that the lens can counteract the shaking of the terminal device 200 through a reverse movement to achieve anti-shake. The gyroscope sensor 280B can also be used for navigation and somatosensory game scenes.

The air pressure sensor 280C is used to measure air pressure. In some embodiments, the terminal device 200 calculates the altitude based on the air pressure value measured by the air pressure sensor 280C to assist positioning and navigation.

The magnetic sensor 280D includes a Hall sensor. The terminal device 200 may use the magnetic sensor 280D to detect the opening and closing of the flip holster. In some embodiments, when the terminal device 200 is a flip machine, the terminal device 200 can detect the opening and closing of the flip according to the magnetic sensor 280D. Furthermore, according to the detected opening and closing state of the holster or the opening and closing state of the flip cover, features such as automatic unlocking of the flip cover are set.

The acceleration sensor 280E can detect the magnitude of the acceleration of the terminal device 200 in various directions (generally three axes). When the terminal device 200 is stationary, the magnitude and direction of gravity can be detected. It can also be used to identify the posture of the terminal device, applied to horizontal and vertical screen switching, pedometer and other applications.

Distance sensor 280F, used to measure distance. The terminal device 200 can measure the distance by infrared or laser. In some embodiments, when shooting a scene, the terminal device 200 may use the distance sensor 280F to measure the distance to achieve fast focusing.

The proximity light sensor 280G may include, for example, a light emitting diode (LED) and a light detector, such as a photodiode. The light emitting diode may be an infrared light emitting diode. The terminal device 200 emits infrared light to the outside through the light emitting diode. The terminal device 200 uses a photodiode to detect infrared reflected light from nearby objects. When sufficient reflected light is detected, it can be determined that there is an object near the terminal device 200. When insufficient reflected light is detected, the terminal device 200 may determine that there is no object near the terminal device 200. The terminal device 200 can use the proximity light sensor 280G to detect that the user holds the terminal device 200 close to the ear to talk, so as to automatically turn off the screen to save power. The proximity light sensor 280G can also be used in leather case mode, and the pocket mode will automatically unlock and lock the screen.

The ambient light sensor 280L is used to sense the brightness of the ambient light. The terminal device 200 can adaptively adjust the brightness of the display screen 294 according to the perceived brightness of the ambient light. The ambient light sensor 280L can also be used to automatically adjust the white balance when taking pictures. The ambient light sensor 280L can also cooperate with the proximity light sensor 280G to detect whether the terminal device 200 is in a pocket to prevent accidental touch.

The fingerprint sensor 280H is used to collect fingerprints. The terminal device 200 can use the collected fingerprint characteristics to implement fingerprint unlocking, access application locks, fingerprint photographs, fingerprint answering calls, and so on.

The temperature sensor 280J is used to detect temperature. In some embodiments, the terminal device 200 uses the temperature detected by the temperature sensor 280J to execute a temperature processing strategy. For example, when the temperature reported by the temperature sensor 280J exceeds a threshold, the terminal device 200 performs a reduction in the performance of the processor located near the temperature sensor 280J, so as to reduce power consumption and implement thermal protection. In other embodiments, when the temperature is lower than another threshold, the terminal device 200 heats the battery 242 to avoid abnormal shutdown of the terminal device 200 due to low temperature. In some other embodiments, when the temperature is lower than another threshold, the terminal device 200 boosts the output voltage of the battery 242 to avoid abnormal shutdown caused by low temperature.

The touch sensor 280K is also called "touch device". The touch sensor 280K may be disposed on the display screen 294, and a touch screen composed of the touch sensor 280K and the display screen 294 is also called a “touch screen”. The touch sensor 280K is used to detect touch operations acting on or near it. The touch sensor can pass the detected touch operation to the application processor to determine the type of touch event. The visual output related to the touch operation can be provided through the display screen 294. In other embodiments, the touch sensor 280K may also be disposed on the surface of the terminal device 200, which is different from the position of the display screen 294.

The bone conduction sensor 280M can acquire vibration signals. In some embodiments, the bone conduction sensor 280M can acquire the vibration signal of the vibrating bone mass of the human voice. The bone conduction sensor 280M can also contact the human pulse and receive the blood pressure pulse signal. In some embodiments, the bone conduction sensor 280M may also be provided in the earphone, combined with the bone conduction earphone. The audio module 270 can parse out the voice signal based on the vibration signal of the vibrating bone block of the voice obtained by the bone conduction sensor 280M to realize the voice function. The application processor can analyze the heart rate information based on the blood pressure beating signal obtained by the bone conduction sensor 280M, and realize the heart rate detection function.

The button 290 includes a power-on button, a volume button, and so on. The button 290 may be a mechanical button. It can also be a touch button. The terminal device 200 may receive key input, and generate key signal input related to user settings and function control of the terminal device 200.

The motor 291 can generate vibration prompts. The motor 291 can be used for incoming call vibration notification, and can also be used for touch vibration feedback. For example, touch operations that act on different applications (such as photographing, audio playback, etc.) can correspond to different vibration feedback effects. Acting on touch operations in different areas of the display screen 294, the motor 291 can also correspond to different vibration feedback effects. Different application scenarios (for example: time reminding, receiving information, alarm clock, games, etc.) can also correspond to different vibration feedback effects. The touch vibration feedback effect can also support customization.

The indicator 292 can be an indicator light, which can be used to indicate the charging status, power change, and can also be used to indicate messages, missed calls, notifications, and so on.

The SIM card interface 295 is used to connect to the SIM card. The SIM card can be inserted into the SIM card interface 295 or pulled out from the SIM card interface 295 to achieve contact and separation with the terminal device 200. The terminal device 200 may support 1 or N SIM card interfaces, and N is a positive integer greater than 1. The SIM card interface 295 may support Nano SIM cards, Micro SIM cards, SIM cards, etc. The same SIM card interface 295 can insert multiple cards at the same time. The types of the multiple cards can be the same or different. The SIM card interface 295 can also be compatible with different types of SIM cards. The SIM card interface 295 may also be compatible with external memory cards. The terminal device 200 interacts with the network through the SIM card to realize functions such as call and data communication. In some embodiments, the terminal device 200 adopts an eSIM, that is, an embedded SIM card. The eSIM card can be embedded in the terminal device 200 and cannot be separated from the terminal device 200.

The following describes the software system of the terminal device 200 in detail:

The software system of the terminal device 200 may adopt a layered architecture, an event-driven architecture, a micro-core architecture, a micro-service architecture, or a cloud architecture. The embodiment of the present invention takes an Android system with a layered architecture as an example to illustrate the software structure of the terminal device 200 by way of example.

As shown in FIG. 3, FIG. 3 is a software structure block diagram of a terminal device 200 according to an embodiment of the present invention. The layered architecture divides the software into several layers, and each layer has a clear role and division of labor. Communication between layers through software interface. In some embodiments, the Android system is divided into four layers, from top to bottom, the application layer, the application framework layer, the Android runtime and system library, and the kernel layer.

The application layer can include a series of application packages. As shown in Figure 3, the application package can include applications such as camera, gallery, calendar, call, map, navigation, WLAN, Bluetooth, music, video, short message, etc.

The application framework layer provides an application programming interface (application programming interface, API) and a programming framework for applications in the application layer. The application framework layer includes some predefined functions. As shown in Figure 3, the application framework layer can include a window manager, a content provider, a view system, a phone manager, a resource manager, a notification manager, and so on.

The window manager is used to manage window programs. The window manager can obtain the size of the display, determine whether there is a status bar, lock the screen, take a screenshot, etc.

The content provider is used to store and retrieve data and make these data accessible to applications. The data may include videos, images, audios, phone calls made and received, browsing history and bookmarks, phone book, etc.

The view system includes visual controls, such as controls that display text, controls that display pictures, and so on. The view system can be used to build applications. The display interface can be composed of one or more views. For example, a display interface that includes a short message notification icon may include a view that displays text and a view that displays pictures.

The phone manager is used to provide the communication function of the terminal device 200. For example, the management of the call status (including connecting, hanging up, etc.).

The resource manager provides various resources for the application, such as localized strings, icons, pictures, layout files, video files, and so on.

The notification manager enables the application to display notification information in the status bar, which can be used to convey notification-type messages, and it can disappear automatically after a short stay without user interaction. For example, the notification manager is used to notify download completion, message reminders, and so on. The notification manager can also be a notification that appears in the status bar at the top of the system in the form of a chart or a scroll bar text, such as a notification of an application running in the background, or a notification that appears on the screen in the form of a dialog window. For example, prompt text information in the status bar, sound a prompt tone, terminal equipment vibration, flashing indicator light, etc.

Android Runtime includes core libraries and virtual machines. Android runtime is responsible for the scheduling and management of the Android system.

The core library consists of two parts: one part is the function functions that the java language needs to call, and the other part is the core library of Android.

The application layer and the application framework layer run in a virtual machine. The virtual machine executes the java files of the application layer and the application framework layer as binary files. The virtual machine is used to perform functions such as object life cycle management, stack management, thread management, security and exception management, and garbage collection.

The system library can include multiple functional modules. For example: surface manager (surface manager), media library (Media Libraries), three-dimensional graphics processing library (for example: OpenGL ES), 2D graphics engine (for example: SGL), etc.

The surface manager is used to manage the display subsystem and provides a combination of 2D and 3D layers for multiple applications.

The media library supports playback and recording of a variety of commonly used audio and video formats, as well as still image files. The media library can support a variety of audio and video encoding formats, such as: MPEG4, H.264, MP3, AAC, AMR, JPG, PNG, etc.

The 3D graphics processing library is used to realize 3D graphics drawing, image rendering, synthesis, and layer processing.

The 2D graphics engine is a drawing engine for 2D drawing.

The kernel layer is the layer between hardware and software. The kernel layer contains at least display driver, camera driver, audio driver, and sensor driver.

In the following, the working procedures of the software and hardware of the terminal device 200 will be exemplified in conjunction with capturing a photo scene.

When the touch sensor 180K receives a touch operation, the corresponding hardware interrupt is sent to the kernel layer. The kernel layer processes the touch operation into the original input event (including touch coordinates, time stamp of the touch operation, etc.). The original input events are stored in the kernel layer. The application framework layer obtains the original input event from the kernel layer and identifies the control corresponding to the input event. Taking the touch operation as a touch click operation, and the control corresponding to the click operation is the control of the camera application icon as an example, the camera application calls the interface of the application framework layer to start the camera application, and then starts the camera driver by calling the kernel layer. The camera 293 captures still images or videos.

The following further introduces the application state switching method provided by this application.

Please refer to FIG. 4, which is a schematic flowchart of an application state switching method provided by an embodiment of the present application. As shown in FIG. 4, the application state switching method includes the following

steps

401 and 402, where:

401. The terminal device receives a user's first touch operation on the second screen.

As mentioned above, the terminal device includes a first screen and a second screen. There are two ways for the first screen and the second screen.

Method 1: The terminal device has a foldable screen, which is a display screen that is foldable. As shown in FIG. 5, the folding screen is a whole screen, but the folding screen can be divided into two areas, one area is the first screen, and the other area is the second screen. As shown in Figure 5, the left half of the folding screen is the first screen, and the right half is the second screen. The first screen and the second screen can be folded. As shown in FIG. 6, when the second screen is rotated 180° in a direction away from the first screen, the first screen and the second screen overlap in a back-to-back manner.

The first screen can be the main screen, and the second screen can be the secondary screen. When the folding angle between the first screen and the second screen reaches the preset angle, the first screen can be used to display the interface of the application in the foreground (ie, the foreground application), and the first screen can receive the user’s request to the foreground application. Click on the interface. Wherein, the preset angle can be greater than or equal to 90° and less than or equal to 180°.

Optionally, when the first screen and the second screen are folding screens, when the folding angle between the first screen and the second screen of the terminal device reaches a preset angle, the terminal device receives the user’s request for the second screen. The first touch operation.

When the folding angle between the first screen and the second screen reaches the preset angle, the terminal device can detect the user's first touch operation on the second screen. If the first touch operation is detected, the terminal device switches the state of the first application from the non-foreground state to the foreground state, and displays the interface of the first application on the first screen. Among them, the first touch operation may be a click operation, a double-tap operation, a pressing operation, or a sliding operation. In the following text, the first touch operation is the double-click operation for example. For example, when the folding angle between the first screen and the second screen reaches 180°, the user can perform a double-tap operation on the second screen. When detecting the double-click operation, the terminal device switches the state of the first application from the non-foreground state to the foreground state, and displays the interface of the first application on the first screen.

Optionally, the user can perform a double-click operation on the preset position of the second screen. For example, the user usually uses the right hand to hold the mobile phone and can set the preset position of the upper right corner of the second screen, so that when the user is facing the first screen, the user can conveniently double-tap the second screen with his right finger. Alternatively, the preset position may also be the middle position of the second screen or other positions.

Method 2: The first screen and the second screen are not folding screens. The terminal device includes a display screen that is not foldable. The display screen is logically divided to obtain two logically divided screens, namely the first screen and the second screen.

For example, as shown in FIG. 19, the terminal device includes a display screen, and the display screen is logically divided to obtain the first screen and the second screen. The first screen is the main screen, and the second screen can be the sub-screen. The first screen is used to display the interface of the foreground application, and the second screen is used to receive the user's first touch operation for application switching. For example, when the user needs to switch applications, he can double-click the second screen. When detecting the double-click operation, the terminal device switches the state of the first application from the non-foreground state to the foreground state, and displays the interface of the first application on the first screen. For the description of the first touch operation, please refer to the description in Manner 1, which is not repeated here. The second screen may be below the first screen, or above the first screen, or to the left of the first screen, or to the right of the first screen, which is not limited in this embodiment of the application. Figure 19 takes the second screen below the first screen as an example.

402. In response to the first touch operation, switch the state of the first application from the non-foreground state to the foreground state, and display the interface of the first application on the first screen.

Among them, the first application is an application that has been started and is in a non-foreground state. Among them, the non-foreground state can be a background state or a quasi-foreground state. The same application has more functions in the quasi-foreground state than in the background state, and less than that in the foreground state. For the description of the status of the alignment foreground, please refer to the corresponding description below, which will not be repeated here.

It can be seen that by implementing the method described in FIG. 4, the user can switch the first application to the foreground by performing a touch operation on the second screen. Improve the convenience of application state switching.

Several specific methods of the first application are described in detail below:

Manner 1: The first application is an application that has been started by any terminal device and is not in the foreground.

Method 2: The first application is a quasi-foreground commonly used application preset by the user. The non-foreground state of the quasi-foreground commonly used application is the quasi-foreground state. The same application has more functions in the quasi-foreground state than in the background state, and less For the function in the foreground. That is to say, if the first application is a quasi-foreground commonly used application preset by the user, the terminal device responds to the first touch operation to switch the state of the first application from the quasi-foreground state to the foreground state, and displays the first application on the first screen. An application interface.

Among them, the user can pre-set one or more quasi-front desk frequently used applications. In other words, the user can pre-select and set one or more applications as frequently used applications in the foreground. For example, the user can select Application 1 and Application 2 and set them as frequently used applications in the foreground. Optionally, the frequently used applications in the prospective foreground may also be automatically set by the terminal device according to the user's usage of each application. The first application may be any one of one or more pre-set frequently used applications in the foreground. When the frequently used applications of the prospective foreground are in the foreground state, the frequently used applications of the prospective foreground can be switched to the prospective foreground state. When the frequently used applications in the near foreground are in the near foreground state, the frequently used applications in the near foreground can be switched to the foreground state.

Among them, the functions of the same application in the quasi-foreground state are more than those in the background state and less than those in the foreground state. For example, the functions of the application in the foreground, quasi-foreground, and background states are shown in Table 1 below. As shown in Table 1 below, the application is visible in the foreground state, that is, the terminal device can output the display interface of the application. And when the application is in the foreground state, it can handle click events, can access the network, can monitor through sensors, can provide location services, can take pictures and record, can play audio and video, and can keep alive. Keep alive refers to keeping the application alive. When the application is in the quasi-foreground state, the user can set whether to display the interface of the quasi-foreground application. When the application is in the quasi-foreground state, it cannot handle click events, can access the network, can monitor through sensors, can provide location services, can take pictures and record, can play audio and video, and can keep alive. When the application is in the background state, the interface of the application cannot be output, and the click event cannot be processed. Access to the network, monitoring of sensor services, location services, photo recording, audio and video playback, and keep-alive functions may be restricted.

Table 1

For example, the user presets a quasi-foreground commonly used application, and the quasi-frontal commonly used application is application 1. As shown in Figure 7, Application 2 is in the foreground, and the interface of Application 2 is displayed on the first screen. Application 1 is in the quasi-foreground state, and the interface of Application 1 is displayed on the second screen. When the folding angle between the first screen and the second screen reaches 180°, the user can perform a double-tap operation on the second screen. When the terminal device detects the double-click operation, it switches the state of application 1 from the quasi-foreground state to the foreground state, and displays the interface of application 1 on the first screen. Switch the state of application 2 from the foreground state to the background state. Optionally, the user can perform a double-click operation on the preset position of the second screen. For example, the user usually uses the right hand to hold the mobile phone and can set the preset position of the upper right corner of the second screen, so that when the user is facing the first screen, the user can conveniently double-tap the second screen with his right finger. Alternatively, the preset position may also be the middle position of the second screen or other positions. FIG. 7 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

Many functions do not need to be closed when frequently used applications of the quasi-foreground switch from the foreground to the quasi-foreground state. For example, when frequently used applications in the quasi-foreground switch from the foreground state to the quasi-foreground state, functions such as visibility, network access, sensor monitoring, location services, photo recording, audio and video will not be turned off, and the terminal device will not release resources related to these functions. Therefore, there is no need to reallocate related resources for these functions when switching frequently used applications in the foreground to the foreground state. This helps to quickly switch the quasi-foreground frequently used applications to the foreground state, and helps to improve the performance of the terminal device and save resources. For example, when the quasi-foreground frequently used applications are switched to the foreground state, there is no need to allocate related resources to re-align the interface of the front-end frequently used applications for layout and drawing, and the interface of the quasi-foreground frequently used applications displayed on the second screen can be directly displayed on the first screen. In one screen, the frequently used applications in the foreground can be switched to the foreground state more quickly.

Manner 3: The first application is a commonly used background application preset by the user, and the non-foreground state of the commonly used background application is a background state. In other words, if the first application is a commonly used background application preset by the user, the terminal device responds to the first touch operation to switch the state of the first application from the background state to the foreground state, and displays the first application on the first screen Interface.

Among them, the user can preset one or more commonly used background applications. In other words, the user can pre-select and set one or more applications as commonly used background applications. For example, the user can select Application 1 and Application 2 as frequently used applications in the background. Optionally, common background applications can also be automatically set by the terminal device according to the user's request for use of each application. The first application may be any one of one or more commonly used background applications set in advance. When the frequently used background applications are in the foreground, you can switch the frequently used background applications to the background state. When the frequently used background applications are in the background state, the frequently used background applications can be switched to the foreground state.

For example, the user presets a commonly used background application, and the commonly used background application is application 1. As shown in Figure 8, Application 2 is in the foreground, and the interface of Application 2 is displayed on the first screen. Application 1 is in the background state, and the interface of Application 1 will not be displayed on the second screen at this time. When the folding angle between the first screen and the second screen reaches 180°, the user can perform a double-tap operation on the second screen. When the terminal device detects the double-click operation, it switches the state of Application 1 from the background state to the foreground state, and displays the interface of Application 1 on the first screen. Switch the state of application 2 from the foreground state to the background state. FIG. 8 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

By setting frequently used applications as background frequently used applications, it is beneficial to quickly and conveniently switch the status of frequently used applications.

Manner 4: The first application is the first application that is switched to the non-foreground state among the applications in the non-foreground state.

For example, there are currently three applications in the background state in the terminal device, namely, application 1, application 2, and application 3. Among them, the application 1 is switched to the background state at the earliest, the time when the application 2 is switched to the background state is later than the application 1, and the time when the application 3 is switched to the background state is later than the application 2. As shown in FIG. 9, when the folding angle between the first screen and the second screen reaches 180°, the user can perform a double-tap operation on the second screen. When the terminal device detects the double-click operation, it switches the state of application 4 from the foreground state to the background state, and switches the state of application 1 from the background state to the foreground state, and displays the interface of application 1 on the first screen. If the user continues to double-click the second screen, the terminal device will switch the state of application 1 from the foreground state to the background state, and switch the state of application 2 from the background state to the foreground state, and display the status of application 2 on the first screen. interface. And so on, until the application that the user wants is switched to the foreground. Optionally, the user can perform a double-click operation on the preset position of the second screen. For the description of the preset position, please refer to the above related description, which will not be repeated here. In the fourth method, the user can perform multiple double-click operations to continuously switch the foreground application. When the desired application is switched to the foreground, the user can stop the double-click operation on the second screen. FIG. 9 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

Manner 5. The second screen includes one or more display areas, and the display areas in the one or more display areas correspond one-to-one with preset commonly used applications, and the preset commonly used applications include quasi-front-end frequently-used applications and/or back-end applications Common applications, the first application is specifically a common application corresponding to the display area touched by the touch operation.

For example, as shown in FIG. 10, the second screen includes 4 display areas. Display area 1 corresponds to application 1, and application 1 is a frequently used application in the foreground. Display area 2 corresponds to application 2, and application 2 is a commonly used background application. Display area 3 corresponds to application 3, which is a commonly used background application. Display area 4 corresponds to application 4, which is a commonly used background application. As shown in Figure 10, when the folding angle between the first screen and the second screen reaches 180°, if the user double-clicks the display area 1, the terminal device will switch the application 1 from the quasi-foreground state to the foreground state, and The interface of Application 1 is displayed on the first screen. The user can double-click the preset position of the display area 1. The preset position can be the upper left corner, upper right corner, lower left corner, lower right corner, or center position of the display area 1, or other positions.

In the same way, when the folding angle between the first screen and the second screen reaches 180°, if the user double-clicks the display area 2, the terminal device will switch the application 2 from the background state to the foreground state and display it on the first screen. The interface of application 2 is displayed. When the folding angle between the first screen and the second screen reaches 180°, if the user double-clicks the display area 3, the terminal device will switch the application 3 from the background state to the foreground state, and display the application 3 on the first screen Interface. When the folding angle between the first screen and the second screen reaches 180°, if the user double-clicks the display area 4, the terminal device switches the application 4 from the background state to the foreground state, and displays the application 4 on the first screen Interface.

For another example, as shown in FIG. 20, the second screen includes 4 display areas. Display area 1 corresponds to application 1, and application 1 is a frequently used application in the foreground. Display area 2 corresponds to application 2, and application 2 is a commonly used background application. Display area 3 corresponds to application 3, which is a commonly used background application. Display area 4 corresponds to application 4, which is a commonly used background application. As shown in FIG. 20, if the user double-clicks the display area 1, the terminal device switches the application 1 from the quasi-foreground state to the foreground state, and displays the interface of the application 1 on the first screen. The user can double-click the preset position of the display area 1. The preset position may be the upper left corner, the upper right corner, the lower left corner, the lower right corner, or the center position of the display area 1, or other positions. The switching principles of application 2, application 3 and application 4 are the same, and will not be repeated here.

Optionally, the applications corresponding to each display area in the second screen may also be commonly used applications in the prospective foreground. For example, the second screen includes 4 display areas. Display area 1 corresponds to application 1, and application 1 is a frequently used application in the foreground. Display area 2 corresponds to application 2, and application 2 is a frequently used application in the foreground. Display area 3 corresponds to application 3, and application 3 is a frequently used application in the foreground. The display area 4 corresponds to the application 4, which is a frequently used application in the foreground.

Or, the applications corresponding to each display area in the second screen may also be common background applications. For example, the second screen includes 4 display areas. Display area 1 corresponds to application 1, and application 1 is a commonly used background application. Display area 2 corresponds to application 2, and application 2 is a commonly used background application. Display area 3 corresponds to application 3, which is a commonly used background application. Display area 4 corresponds to application 4, which is a commonly used background application.

As an optional implementation manner, the interface or icon or name of the frequently-used applications in the front-end is displayed in the display area corresponding to the frequently-used applications in the front-end, and/or the icons of the frequently-used applications in the background are displayed in the display area corresponding to the frequently-used applications in the background Or name.

For example, as shown in FIG. 11, the second screen includes 4 display areas. Display area 1 corresponds to application 1, and application 1 is a frequently used application in the foreground. Display area 2 corresponds to application 2, and application 2 is a commonly used background application. Display area 3 corresponds to application 3, which is a commonly used background application. Display area 4 corresponds to application 4, which is a commonly used background application.

Wherein, the interface or icon or name of application 1 can be displayed in the display area 1. FIG. 11 takes the interface of application 1 displayed in the display area 1 as an example. Optionally, if the application 1 is in the started state and is in the quasi-foreground state, the interface of the application 1 is displayed in the display area 1. If the application 1 is not started, the icon or name of the application 1 is displayed in the display area 1. Optionally, when the application 1 is not started, the color of the icon or name of the application 1 displayed in the display area 1 may be gray. Or, when the application 1 is not started, no information may be displayed in the display area 1.

Or, regardless of whether the application 1 is started or not, the icon or name of the application 1 is displayed in the display area 1. Optionally, when the application 1 is started, the color of the icon or name of the application 1 displayed in the display area 1 is colored. When application 1 is not started, the color of the icon or name of application 1 displayed in display area 1 is gray. Or, when the application 1 is not started, no information may be displayed in the display area 1.

Among them, the display area 2 can display the icon or name of the application 2. FIG. 11 takes the display of the icon and name of application 2 in the display area 2 as an example. Optionally, when the application 2 is started, the color of the icon or name of the application 2 displayed in the display area 2 is colored. When the application 2 is not started, the color of the icon or name of the application 2 displayed in the display area 2 is gray. Or, when the application 2 is not started, no information may be displayed in the display area 2. The display principle of the display area 3 and the display area 4 is the same as that of the display area 2, and will not be repeated here. In FIG. 11, the first screen and the second screen are screens included in the folding screen as an example. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

Optionally, the user may perform a first touch operation on the application interface or icon or name in the display area to switch the state of the corresponding application.

As an optional implementation manner, when the first screen and the second screen are screens included in the folding screen, when it is detected that the second screen is facing upwards, the information of the frequently used applications of the prospective foreground is displayed in the display area corresponding to the frequently used applications of the prospective foreground. The interface or icon or name, and/or, the icon or name of the frequently used background application is displayed in the display area corresponding to the commonly used background application.

Optionally, a sensor can be used to detect whether the second screen faces upward. Or, face recognition can be performed through a camera configured on the second screen, and if a human face is recognized, it is determined that the second screen faces upward.

In this embodiment, if the second screen is facing down, it proves that the user does not want to see the content in the second screen, and therefore, it is not necessary to display any content in each display area. When it is detected that the second screen is facing up, the interface or icon or name of the frequently used applications in the foreground will be displayed in the display area corresponding to the frequently used applications in the foreground, and/or the frequently used applications in the background will be displayed in the display area corresponding to the frequently used applications in the background Icon or name. By implementing this embodiment, it is beneficial to save the power of the terminal equipment.

As an optional implementation manner, a specific implementation manner for the terminal device to set the application corresponding to the display area may be: the terminal device receives a user's second touch operation on a target area in one or more display areas of the second screen; the terminal; In response to the second touch operation, the device outputs an application list, which includes multiple applications; the terminal device receives the user's selection operation of the application in the application list; the terminal device sets the application selected by the selection operation as the common application corresponding to the target area . Among them, the second touch operation may be a click operation, a double-tap operation, or a sliding operation. The target area may be any one of the one or more display areas of the second screen.

For example, as shown in FIG. 12, the second screen includes 4 display areas. When the corresponding application is not set in the display area, the application addition symbol can be displayed in the display area. For example, when the terminal device receives a user's click operation to add a symbol to an application in the display area 1, it outputs an application list. The application list includes multiple applications. Optionally, the application list includes all applications installed on the terminal device, or includes applications installed on the terminal device that do not correspond to any display area. Optionally, the application list can also be sorted according to the user's usage time or frequency. Applications that have been used for a long time or are used frequently can be ranked in the forefront. This makes it easy for users to quickly select frequently used applications. As shown in Figure 12, the application list includes application 1 to application 5. After the user selects application 1, the terminal device sets application 1 as the application corresponding to display area 1. In FIG. 12, the first screen and the second screen are screens included in the folding screen as an example. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

Optionally, if the user needs to replace the application corresponding to the display area 1. Then, the user can also perform a pressing operation on the display area 1 with a preset intensity. After detecting the pressing operation, the terminal device outputs the application list. The application list includes application 1 to application 5. After the user selects application 2, the terminal device first releases the corresponding relationship between display area 1 and application 1, and then sets display area 1 to correspond to application 2.

Of course, the terminal device may also set the application corresponding to each display area in other ways, which is not limited in the embodiment of the present application.

Optionally, the user can also release the corresponding relationship between the display area and the application in the following two ways.

Method 1: The terminal device receives the user's long-press operation on the application interface or icon or name displayed in the target area. The terminal device displays a delete button in the target area. After the terminal device detects that the user clicks the delete button, the terminal device cancels the correspondence between the target area and the currently corresponding application.

For example, as shown in FIG. 13, the display area 1 and the application 1 have a corresponding relationship, and the user can perform a long press operation on the interface of the application in the display area 1. After detecting the long-press operation, the terminal device can display the delete button in the display area 1. After the terminal device detects that the user clicks the delete button, the terminal device cancels the corresponding relationship between the display area 1 and the application 1. FIG. 13 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

Manner 2: The terminal device receives the user's drag operation on the application interface or icon or name displayed in the target area. After the terminal device detects that the user drags the application interface or icon or name displayed in the target area to the edge of the second screen, the terminal device releases the corresponding relationship between the target area and the currently corresponding application.

For example, as shown in FIG. 14, the display area 1 and the application 1 have a corresponding relationship, and the user can drag the interface of the application 1 in the display area 1. After the terminal device detects that the user drags the interface of the application 1 to the upper edge of the second screen, the terminal device releases the corresponding relationship between the display area 1 and the application 1. FIG. 14 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

Alternatively, the terminal device may also release the corresponding relationship between the display area and the application in other ways, which is not limited in the embodiment of the present application.

As an optional implementation manner, the position of each display area may be fixed, or the display area may be movable.

For example, as shown in FIG. 15, the user can perform a drag operation on the display area 1. When the terminal device detects that the user drags the display area 1 and the display area 2 to overlap, the terminal device exchanges the position of the display area 1 and the position of the display area 2. Alternatively, the user can also drag the application 1 icon in the display area 1. When the terminal device detects that the user drags the icon of the application 1 in the display area 1 and overlaps the icon of the application 2 in the display area 2, the terminal device sets the display area 1 to correspond to the application 2, and the display area 2 to correspond to the application 1, that is, two interactions The application corresponding relationship of the display area. FIG. 15 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

As an optional implementation manner, the number of display areas in the second screen may be fixed. The display area cannot be deleted or added. The user may set a corresponding common application for each display area, or the user may set the corresponding common application for only part of the display area.

For example, the number of display areas in the second screen is fixed at four. Among them, display area 1 corresponds to application 1, display area 2 corresponds to application 2, display area 3 corresponds to application 3, and display area 4 corresponds to application 4. Or, display area 1 corresponds to application 1, display area 2 corresponds to application 2, display area 3 corresponds to application 3, and display area 4 is not provided with a corresponding application.

As an optional implementation manner, the number of display areas in the second screen may be non-fixed. You can add or delete the display area.

For example, as shown in Figure 16, the second screen currently has only 3 display areas. The user can click on the area of the second screen to add symbols. After the terminal device detects that the user clicks on the area to add a symbol, the terminal device creates a new display area. As shown in Figure 16, the terminal device creates a new display area 4. Optionally, the number of display areas on the second screen cannot exceed a preset number. For example, the second screen can only include 4 display areas at most. Then, after the terminal device creates the display area 4, the terminal device no longer displays the area adding symbols, and the terminal device no longer continues to create the display area. FIG. 16 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

As another example, as shown in FIG. 17, the second screen currently has 4 display areas. After the terminal device detects that the user drags the display area 4 to the edge of the second screen, the terminal device can delete the display area 4. The other display areas are the same, so I won’t repeat them here. FIG. 17 takes the first screen and the second screen as an example of screens included in the folding screen. When the first screen and the second screen are not folding screens, the principle is similar, which will not be repeated here.

As an optional implementation manner, the terminal device responds to the first touch operation, switches the state of the first application from the non-foreground state to the foreground state, and displays the interface of the first application on the first screen. The specific implementation manner is: response The first touch operation determines whether the first application is started; if the first application is started, and the state of the first application is not the foreground state, the state of the first application is switched from the non-foreground state to the foreground state, and the first application The screen displays the interface of the first application.

If the first application is not started, the first application is started, and the interface of the first application is displayed on the first screen.

For example, the second screen includes 4 display areas. Display area 1 corresponds to application 1, and application 1 is a frequently used application in the foreground. Display area 2 corresponds to application 2, and application 2 is a commonly used background application. Display area 3 corresponds to application 3, which is a commonly used background application. Display area 4 corresponds to application 4, which is a commonly used background application. Among them, the display area 1 displays the interface of the application 1, the display area 2 displays the icon of the application 2, the display area 3 displays the icon of the application 3, and the display area 4 displays the icon of the application 4. When the folding angle between the first screen and the second screen reaches 180°, if the user double-clicks the icon in the display area 2, the terminal device determines whether the application 2 has been started, and whether the state of the application 2 is the background state. If yes, switch Application 2 from the background state to the foreground state, and display the interface of Application 2 on the first screen. If application 2 is not started, application 2 is started, and the interface of application 2 is displayed on the first screen.

By implementing this embodiment, when the user switches the application to the foreground, if the application is not started, the application can also be started, and the application can be displayed in the foreground.

The embodiment of the present invention may divide the device into functional modules according to the foregoing method examples. For example, each functional module may be divided corresponding to each function, or two or more functions may be integrated into one module. The above-mentioned integrated modules can be implemented in the form of hardware or software function modules. It should be noted that the division of modules in the embodiment of the present invention is illustrative, and is only a logical function division, and there may be other division methods in actual implementation.

Please refer to FIG. 18, which shows a schematic structural diagram of a terminal device according to an embodiment of the present application. The terminal device 1800 shown in FIG. 18 may be used to perform operations performed by the terminal device in the foregoing method embodiment. The terminal device 1800 shown in FIG. 18 may include a receiving unit 1801 and a switching unit 1802. among them:

The receiving unit 1801 is used to receive the user's first touch operation on the second screen; the switching unit 1802 is used to respond to the first touch operation to switch the state of the first application from the non-foreground state to the foreground state, and to switch to the foreground state on the first screen The interface of the first application is displayed.

As an optional implementation manner, the terminal device has a folding screen, the folding screen includes a first screen and a second screen, and the manner in which the receiving unit 1801 receives the user's first touch operation on the second screen is specifically as follows: When the folding angle between the second screens reaches the preset angle, receiving the user's first touch operation on the second screen.

As an optional implementation manner, the first application is a quasi-foreground commonly used application preset by the user, and the non-foreground state of the quasi-foreground commonly used application is the quasi-foreground state. The same application has more functions in the quasi-foreground state than in the background state The function is less than the function in the foreground state; or, the first application is a common background application preset by the user, and the non-foreground state of the common background application is the background state; or the first application is an application that is not in the foreground state The first application to switch to a non-foreground state.

As an optional implementation manner, the first application is a frequently used application in the foreground or a frequently used background application; the second screen includes one or more display areas, and the display areas in the one or more display areas and preset common applications One-to-one correspondence, the preset common applications include quasi-front-end common applications and/or back-end common applications, and the first application is specifically the common application corresponding to the display area touched by the touch operation.

As an optional implementation manner, the terminal device further includes: a display unit for displaying the interface or icon or name of the frequently used application in the prospective foreground in the display area corresponding to the frequently used application in the prospective foreground, and/or corresponding to the frequently used application in the background The icons or names of frequently used background applications are displayed in the display area of.

As an optional implementation manner, the display unit is specifically configured to: when it is detected that the second screen is facing upwards, display the interface or icon or name of the frequently used application of the prospective foreground in the display area corresponding to the frequently used application of the prospective foreground, and/or To display the icons or names of frequently used background applications in the display area corresponding to the frequently used background applications.

As an optional implementation manner, the terminal device further includes an output unit and a setting unit, wherein:

The receiving unit 1801 is further configured to receive a second touch operation of a user on a target area in one or more display areas;

The output unit is configured to output an application list in response to the second touch operation, and the application list includes multiple applications;

The receiving unit 1801 is further configured to receive a user's selection operation of an application in the application list;

The setting unit is used to set the application selected by the selection operation as the common application corresponding to the target area.

As an optional implementation manner, the switching unit 1802 is specifically configured to: in response to the first touch operation, determine whether the first application is started; if the first application has been started and the state of the first application is not in the foreground, the first application The state of an application is switched from the non-foreground state to the foreground state, and the interface of the first application is displayed on the first screen; the terminal device also includes a starting unit; the starting unit is configured to start the first application if the first application is not started, And the interface of the first application is displayed on the first screen.

Based on the same inventive concept, the principle of solving the problem of the terminal device provided in the embodiment of this application is similar to the principle of solving the problem of the terminal device in the embodiment of the method of this application. Therefore, the implementation of each device can refer to the implementation of the method. For concise description, here No longer.

It should be noted that, in the foregoing embodiments, the description of each embodiment has its own focus, and for parts that are not described in detail in an embodiment, reference may be made to related descriptions of other embodiments.

The steps in the method of the embodiment of the present invention can be adjusted, merged, and deleted in order according to actual needs.

The modules in the terminal device of the embodiment of the present invention can be combined, divided, and deleted according to actual needs.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the application, not to limit them; although the application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or equivalently replace some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present application. range.

Claims

An application state switching method is applied to a terminal device, the terminal device includes a first screen and a second screen, and is characterized in that the method includes:

Receiving a user's first touch operation on the second screen;

In response to the first touch operation, the state of the first application is switched from the non-foreground state to the foreground state, and the interface of the first application is displayed on the first screen.
The method according to claim 1, wherein the terminal device has a folding screen, the folding screen includes the first screen and the second screen, and the receiving user's first screen on the second screen One touch operation, including:

When the folding angle between the first screen and the second screen reaches a preset angle, receiving a user's first touch operation on the second screen.
The method according to claim 1 or 2, characterized in that:

The first application is a quasi-foreground commonly used application preset by the user, the non-foreground state of the quasi-foreground commonly used application is the quasi-foreground state, and the same application has more functions in the quasi-foreground state than in the background state, and less Functions in the foreground;

Alternatively, the first application is a background commonly used application preset by the user, and the non-frontend state of the background commonly used application is a background state;

Or, the first application is the application that is switched to the non-foreground state earliest among the applications in the non-foreground state.
The method according to claim 3, wherein the first application is the quasi-foreground common application or the background common application; the second screen includes one or more display areas, and the one or The display areas in the multiple display areas correspond one-to-one with preset commonly used applications. The preset commonly used applications include the quasi-front-end commonly used applications and/or the background commonly-used applications, and the first application is specifically the The commonly used applications corresponding to the touched display area of the touch operation.
The method according to claim 4, wherein the method further comprises:

Display the interface or icon or name of the frequently-used application in the prospective foreground in the display area corresponding to the frequently-used application in the prospective foreground, and/or display the icon or the icon of the frequently-used background application in the display area corresponding to the frequently-used background application in the background or name.
The method according to claim 5, wherein the interface or icon or name of the frequently used application in the prospective foreground is displayed in the display area corresponding to the frequently used application in the prospective foreground, and/or the interface or icon or name of the frequently used application in the prospective foreground is displayed. The icon or name of the frequently used background application displayed in the display area corresponding to the application includes:

When it is detected that the second screen is facing upwards, the interface or icon or name of the frequently used application in the prospective foreground is displayed in the display area corresponding to the frequently used application in the prospective foreground, and/or the corresponding frequently used application in the background The icon or name of the frequently used background application is displayed in the display area.
The method according to any one of claims 4 to 6, wherein the method further comprises:

Receiving a second touch operation of the user on the target area in the one or more display areas;

Outputting an application list in response to the second touch operation, the application list including multiple applications;

Receiving a user's selection operation of an application in the application list;

The application selected by the selection operation is set as a common application corresponding to the target area.
The method according to any one of claims 1 to 7, wherein in response to the first touch operation, the state of the first application is switched from a non-foreground state to a foreground state, and the state of the first application is switched to the foreground state in response to the first touch operation. The interface of the first application displayed on the screen includes:

In response to the first touch operation, determining whether the first application is started;

If the first application has been started, and the state of the first application is not the foreground state, the state of the first application is switched from the non-foreground state to the foreground state, and the first application is displayed on the first screen. Application interface;

The method also includes:

If the first application is not started, the first application is started, and the interface of the first application is displayed on the first screen.
A terminal device, the terminal device includes a first screen and a second screen, and is characterized in that the terminal device includes:

A receiving unit, configured to receive a user's first touch operation on the second screen;

The switching unit is configured to respond to the first touch operation, switch the state of the first application from the non-foreground state to the foreground state, and display the interface of the first application on the first screen.
The terminal device according to claim 9, wherein the terminal device has a foldable screen, the foldable screen includes the first screen and the second screen, and the receiving unit receives a user's response to the second screen. The specific method of the first touch operation of the screen is as follows:

When the folding angle between the first screen and the second screen reaches a preset angle, receiving a user's first touch operation on the second screen.
The terminal device according to claim 9 or 10, wherein the first application is a quasi-foreground commonly used application preset by a user, and the non-foreground state of the quasi-foreground commonly used application is a quasi-foreground state, and the same application is in the standard foreground. The functions in the foreground state are more than those in the background state and less than those in the foreground state;

Alternatively, the first application is a background commonly used application preset by the user, and the non-frontend state of the background commonly used application is a background state;

Or, the first application is the application that is switched to the non-foreground state earliest among the applications in the non-foreground state.
The terminal device according to claim 11, wherein the first application is the quasi-foreground commonly used application or the background commonly used application; the second screen includes one or more display areas, and the one Or the display areas in the multiple display areas correspond one-to-one with preset common applications. The preset common applications include the quasi-foreground common applications and/or the background common applications, and the first application is specifically all The common applications corresponding to the display area touched by the touch operation are described.
The terminal device according to claim 12, wherein the terminal device further comprises:

The display unit is configured to display the interface or icon or name of the frequently used application in the front desk in the display area corresponding to the frequently used application in the front desk, and/or display the background in the display area corresponding to the frequently used application in the back desk Icons or names of frequently used applications.
The terminal device according to claim 13, wherein the display unit is specifically configured to:

When it is detected that the second screen is facing upwards, the interface or icon or name of the frequently used application in the prospective foreground is displayed in the display area corresponding to the frequently used application in the prospective foreground, and/or the corresponding frequently used application in the background The icon or name of the frequently used background application is displayed in the display area.
The terminal device according to any one of claims 12 to 14, wherein the terminal device further comprises an output unit and a setting unit, wherein:

The receiving unit is further configured to receive a second touch operation of the user on the target area in the one or more display areas;

The output unit is configured to output an application list in response to the second touch operation, and the application list includes multiple applications;

The receiving unit is further configured to receive a user's selection operation of an application in the application list;

The setting unit is configured to set the application selected by the selection operation as a common application corresponding to the target area.
The terminal device according to any one of claims 9-15, wherein:

The switching unit is specifically used for:

In response to the first touch operation, determining whether the first application is started;

If the first application has been started, and the state of the first application is not the foreground state, the state of the first application is switched from the non-foreground state to the foreground state, and the first application is displayed on the first screen. Application interface;

The terminal device also includes a starting unit;

The starting unit is configured to start the first application if the first application is not started, and display the interface of the first application on the first screen.
A computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, the computer program includes program instructions, and when the program instructions are executed by a processor, the processor executes the The method described in any one of 1-8.