CN109859293B - Animation multi-state switching method and device for android device - Google Patents
Animation multi-state switching method and device for android device Download PDFInfo
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Abstract
The invention discloses an animation multi-state switching method and device for android equipment, wherein the animation multi-state switching method for the android equipment comprises the following steps: responding to a starting playing instruction of the animation, and setting an animation playing resource list; loading the corresponding picture resources to the SurfaceView based on the sequence of the picture resources in the resource list; and calling the SurfaceView to draw and display the loaded picture resources. According to the method and the device, the resource list is set, and then the resources in the play list are subjected to surface View drawing display in sequence, a double-buffer mechanism is adopted, so that the pause is reduced, and the drawing display fluency can be effectively improved.
Description
Technical Field
The invention belongs to the technical field of animation, and particularly relates to an animation multi-state switching method and device for android equipment.
Background
In the related art, no mature scheme for realizing a multi-state animation effect in an android system exists in the market at present, wherein the multi-state means that an animation can show that an animation main body is in different states according to the content of animation expression, for example, a bunny rabbit may be in a listening state and may be in a dancing state, the animation expressions of the states are different, only single-content frame-by-frame animation is available, and the way of realizing the frame-by-frame animation is as follows:
android's own FrameAnimation (simple frame animation effects can be achieved).
2. The effect is achieved by using a SurfaceView (a space with a double-buffer mechanism provided by an Android system) or an extended View rewriting drawing logic mode.
3. Video playback is used.
The inventor finds that the scheme at least has the following defects in the process of implementing the application:
1. using the android self-contained framework, it is easy to cause the main thread to be stuck, and it is easy to generate OOM (out of memory) and increase the probability of ANR (Application Not Responding). Multi-state switching is not supported, the method depends on an android animation frame, and a Read Only Memory (ROM) may cut off the animation frame in some scenes, so that the method cannot work in the scenes.
The SurfaceView is used as a control provided by an android system and provided with a double buffering mechanism, and is mainly used for being responsible for drawing views. Due to the high customizability, the access threshold of the view is high, and the view only focuses on drawing logic, so that a set of complete logic needs to be written by the user to finish the frame animation effect, and the workload and the working difficulty are high.
3. The effect is realized in a video form, and the content is fixed without the capability of switching states. The condition of discontinuity is easy to occur when the multi-segment video is switched and played, and the introduction of the animation frame can increase the pressure on the operation.
Disclosure of Invention
The embodiment of the invention provides an animation multi-state switching method and device for android equipment, which are used for solving at least one of the technical problems.
In a first aspect, an embodiment of the present invention provides an animation multi-state switching method for an android device, including: responding to a starting playing instruction of the animation, and setting an animation playing resource list; loading the corresponding picture resources to the SurfaceView based on the sequence of the picture resources in the resource list; and calling the SurfaceView to draw and display the loaded picture resources.
In a second aspect, an embodiment of the present invention provides an animation multi-state switching apparatus for an android device, including: the list setting module is configured to respond to a starting playing instruction of the animation and set an animation playing resource list; a loading module configured to load the corresponding picture resources to the surfaceView based on the order of the picture resources in the resource list; and the drawing module is configured to call SurfaceView to draw and display the loaded picture resources.
In a third aspect, an electronic device is provided, comprising: the android device comprises at least one processor and a memory which is in communication connection with the at least one processor, wherein the memory stores instructions which can be executed by the at least one processor, and the instructions are executed by the at least one processor so as to enable the at least one processor to execute the steps of the animation multi-state switching method for the android device of any embodiment of the invention.
In a fourth aspect, the present invention also provides a computer program product, which includes a computer program stored on a non-volatile computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer is caused to execute the steps of the animation multi-state switching method for an android device according to any embodiment of the present invention.
According to the scheme provided by the method and the device, the resource list is set, and then the resources in the play list are subjected to surface View drawing display in sequence, and a double-buffer mechanism can effectively reduce the pressure of a main thread and reduce the pause, so that the drawing display fluency can be effectively improved. And the Surface View is an android native mechanism, does not need to introduce an additional mechanism, and is more stable and efficient.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.
Fig. 1 is a flowchart of an animation multi-state switching method for an android device according to an embodiment of the present invention;
fig. 2 is a flowchart of another animation multi-state switching method for an android device according to an embodiment of the present invention;
fig. 3 is a flowchart of another animation multi-state switching method for an android device according to an embodiment of the present invention;
fig. 4 is a flowchart of another animation multi-state switching method for an android device according to an embodiment of the present invention;
fig. 5 is an overall flowchart of an animation multi-state switching method for an android device according to an embodiment of the present invention;
fig. 6 is a state switching flowchart of an animation multi-state switching method for an android device according to an embodiment of the present invention;
fig. 7 is a block diagram of an animation multi-state switching apparatus for an android device according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flowchart of an embodiment of an animation multi-state switching method for an android device according to the present application is shown, where the animation multi-state switching method for an android device according to the present embodiment may be applied to an android device including an animation playing function, such as an early education video machine, a video learning machine, and the like.
As shown in fig. 1, in step 101, in response to an instruction to start playing of an animation, an animation playback resource list is set;
in step 102, loading corresponding picture resources to a surfaceView based on the order of the picture resources in the resource list;
in step 103, the surfaceView is called to draw and display the loaded picture resource.
In this embodiment, for step 101, the multi-state switching device sets a play resource list of the animation in response to the animation start playing instruction of the user, wherein the play resource list includes the picture resource to be played recently. Thereafter, for step 102, the corresponding picture resources are loaded to the SurfaceView based on the order of the picture resources in the resource list. Then, for step 103, calling SurfaceView to perform drawing display on the loaded picture resource, and rendering the picture drawing display into animation.
According to the method, the resource list is set, and then the resources in the play list are subjected to surface View drawing display in sequence, and a double-buffer mechanism is adopted, so that the pause is reduced, and the drawing display fluency can be effectively improved.
Further referring to fig. 2, which shows a flowchart of an embodiment of another animation multi-state switching method for an android device according to an embodiment of the present application. The flow chart of the present embodiment is mainly a flow further defined with respect to the additional steps of the flow chart of fig. 1.
As shown in fig. 2, in step 201, in response to a control instruction for the animation, a Handler is called to process the control instruction and determine whether state switching is required;
in step 202, if state switching is required, a Handler is called to update the resource list based on the switched state and perform corresponding processing on the updated resource list;
in step 203, if the state switching is not required, a Handler is called to continue processing the resource list.
In this embodiment, in step 201, after receiving a control command for animation, the multi-state switching device calls a Handler to process the control command and determines that state switching is not required. Then, for step 202, if state switching is required, the resource list is updated, and then a Handler is called to perform relevant processing on the updated resource list, where the processing is some existing processing manners, and details are not described herein. For step 203, if no state switch or state update is needed, directly calling the Handler to continue processing the resource list.
According to the method, the Handler is called to process the control instruction, the resource list is updated after the state switching is found, the control instruction can be better processed, the resource list is updated in the Handler stage, then loading drawing is carried out, double buffering is carried out, the jam can be effectively prevented, and the animation smoothness is improved.
In some optional embodiments, the method further comprises: and packaging the SurfaceView and the Handler, wherein the exposure control interface is used for controlling, the exposure state callback interface is used for realizing state monitoring, the Surfaceview is used for drawing and displaying the picture, and the Handler is used for drawing specific control and realizing. Therefore, the method is completely based on the android native mechanism, does not introduce any three-party things, is more stable and efficient, is not based on the animation frame, and can still work under the condition that the animation frame is cut by using the Handler mechanism.
Referring to fig. 3, a flowchart of an embodiment of a method for switching between multiple states of an animation for an android device according to an embodiment of the present application is shown. The flowchart of the present embodiment is mainly a flowchart of the further detailed steps for step 102 in fig. 1.
As shown in fig. 3, in step 301, a Handler is called to preload the picture resource in the resource list;
in step 302, a Handler is called to draw the pre-loaded picture resources into the SurfaceView at a fixed frequency.
In this embodiment, for step 301, the multi-state switching device calls a Handler to preload the picture resources in the resource list, and then for step 302, the Handler is used to draw the preloaded picture resources into the surfeview at a fixed frequency. Therefore, the pause of the main thread can be reduced in a preloading and redrawing mode, and the smoothness of animation playing is improved.
With further reference to fig. 4, a flowchart of an embodiment of a method for switching between multiple states of an animation for an android device is shown. The flow chart of this embodiment is mainly a flow chart further defined with respect to the additional steps of fig. 1.
As shown in fig. 4, in step 401, obtaining the occurrence frequency of each picture resource based on at least the resource list;
in step 402, determining whether the occurrence frequency of each picture resource is greater than or equal to a preset frequency threshold;
in step 403, if the current value is greater than or equal to the preset frequency threshold, the picture resource is cached to reduce the read-write frequency.
In this embodiment, for step 401, the multi-state switching device may obtain the occurrence frequency of the picture resource at least based on the resource list, and may also obtain the occurrence frequency of the picture resource in other manners, for example, the occurrence frequency of each picture in the whole may be counted in advance in some manner, so as to better know the occurrence frequency of each picture. By acquiring the occurrence frequency of each picture resource in the resource list, the method and the device can acquire which pictures in the pictures to be played have the highest occurrence frequency. Further, in step 402, it is determined whether the occurrence frequency of each picture resource is greater than or equal to a preset frequency threshold, and if the occurrence frequency exceeds the threshold, the picture may be cached in step 403, so as to reduce interaction and reduce the read-write frequency. Only counting the resource list can predict which pictures need to be cached first in a short time, thereby saving system resources.
In some optional embodiments, the multi-state at least includes: a speech recognition state and a scene state. The state change refers to that the animation body may be in different states, for example, listening, asking for a good, waiting for the server to return to the resource, and the like, and the application is not limited herein. In a further embodiment, multi-state refers to the rabbit (animated body) needing to express the speech recognition state and the rabbit needing to make a state corresponding to the feedback resource after recognition. The speech recognition states include: normal state, ask for, listen, wait for the server to return five states of resources, the scene state contains: reciting, dancing, singing, and ordinary speech feedback. By enabling the animation body to show different states, a user such as a child can better understand the state of the device, and the user experience is better.
For example, in a specific example, a user triggers to wake up through a wake-up word or a GUI control, a rabbit shows a state of asking for a good, at this time, the user speaks a content to be identified, the rabbit enters a recognition monitoring state, when an internal vad detects that voice input is finished, a state of waiting for a resource is provided before a final instruction and resource is issued, after the resource is issued, the rabbit needs to be converted into a normal state in the process of analyzing the resource, and when data analysis is finished, for example, a song resource is issued at present, the rabbit needs to be switched to a scene of singing and a state of singing is made.
The following description is provided to enable those skilled in the art to better understand the present disclosure by describing some of the problems encountered by the inventors in implementing the present disclosure and by describing one particular embodiment of the finally identified solution.
The method and the device are mainly used for achieving the multi-state content animation effect on the android device. In order to solve the disadvantages mentioned in the background art, a scheme for realizing multi-state animation based on an Android Handler mechanism (an information mechanism of an Android system) and surface view is provided.
The implementation principle of the scheme is as follows:
1. packaging the SurfaceView and the Handler, exposing a simple interface for control, and exposing various state callback interfaces to realize state monitoring;
2. the SurfaceView is responsible for drawing and displaying the picture;
3. the Handler is responsible for drawing specific control implementation;
4. according to the change of the state, preloading the resource to be displayed into the memory (for controlling the playing, the pause, the state change and the frame skipping);
5. the internal Handler gets the playlist's assets to draw to Surfaceview at a fixed frequency.
The scheme has the advantages that:
1. the method is not based on the animation frame, and can still work under the condition that the animation frame is cut by using a Handler mechanism;
2. a double-buffer mechanism is adopted, the pressure of a main thread is reduced, and drawing fluency is provided;
3. the packaging interface provides friendly api, and can be used for quickly going to hand;
4. multi-state switching is supported, and a user-defined state is supported;
5. the method is completely based on an android native mechanism, has no three-party things, and is stable and efficient;
6. the pictures are preloaded to prevent blocking, partial high-frequency pictures are cached to reduce the IO reading and writing frequency, all the pictures cannot be loaded at one time, and program collapse caused by overlarge number of the pictures is prevented.
Please refer to fig. 5, which shows an overall flowchart of a solution provided by an embodiment of the present application.
Description of the flow:
1. starting the process;
2. initializing the user-defined view (setting broadcast resources and loading resources);
3. calling a view method to realize the requirement;
4. the flow ends.
Further referring to fig. 6, a state switching flowchart provided in an embodiment of the present application is shown.
Description of the flow:
1. starting the animation;
2. setting a play animation resource data list;
3. caching the picture resources into a memory according to the resource list;
4. playing according to the playing resource list;
5. if the playing needs to be continued and the resources need to be replaced, skipping to the step 2;
6. if the playing needs to be continued and the resources do not need to be replaced, skipping to the step 4;
7. if the playback does not need to be continued, the process ends.
Referring to fig. 7, a block diagram of an animation multi-state switching apparatus for an android device according to an embodiment of the present application is shown.
As shown in fig. 7, the animation multi-state switching apparatus 700 for an android device includes a list setting module 710, a loading module 720, and a drawing module 730.
The list setting module 710 is configured to set an animation playing resource list in response to an animation playing start instruction; a loading module 720, configured to load the corresponding picture resources to the SurfaceView based on the order of the picture resources in the resource list; and the drawing module 730 is configured to call the surfaview to draw and display the loaded picture resource.
In some optional embodiments, the above-mentioned animation multi-state switching apparatus 700 for an android device further includes: a switching module (not shown in the figure) configured to respond to the control instruction of the animation, call a Handler to process the control instruction and judge whether state switching is required; a state updating module (not shown in the figure) configured to, if state switching is required, invoke the Handler to update the resource list based on the switched state and perform corresponding processing on the updated resource list; and the processing module (not shown in the figure) is configured to call a Handler to continue processing the resource list if state switching is not required.
It should be understood that the modules recited in fig. 7 correspond to various steps in the methods described with reference to fig. 1, 2, 3, and 4. Thus, the operations and features described above for the method and the corresponding technical effects are also applicable to the modules in fig. 7, and are not described again here.
It is to be noted that the modules in the embodiments of the present disclosure are not intended to limit the aspects of the present disclosure, and for example, the list setting module may be described as a module that sets an animation playback resource list in response to a start playback instruction of an animation. In addition, the related function module may also be implemented by a hardware processor, for example, the list setting module may also be implemented by a processor, which is not described herein again.
In other embodiments, an embodiment of the present invention further provides a non-volatile computer storage medium, where the computer storage medium stores computer-executable instructions, and the computer-executable instructions may execute the animation multi-state switching method for an android device in any of the above method embodiments;
as one embodiment, the non-volatile computer storage medium of the present invention stores computer-executable instructions configured to:
responding to a starting playing instruction of the animation, and setting an animation playing resource list;
loading the corresponding picture resources to the SurfaceView based on the sequence of the picture resources in the resource list;
and calling the SurfaceView to draw and display the loaded picture resources.
The non-volatile computer-readable storage medium may include a storage program area and a storage data area, wherein the storage program area may store an operating system, an application program required for at least one function; the storage data area may store data created according to use of the animation multi-state switching apparatus for the android device, and the like. Further, the non-volatile computer-readable storage medium may include high speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other non-volatile solid state storage device. In some embodiments, the non-transitory computer readable storage medium optionally includes memory remotely located from the processor, which may be connected over a network to an animated multi-state switching device for an android device. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
Embodiments of the present invention also provide a computer program product, which includes a computer program stored on a non-volatile computer-readable storage medium, where the computer program includes program instructions, and when the program instructions are executed by a computer, the computer executes any one of the above animation multi-state switching methods for an android device.
Fig. 8 is a schematic structural diagram of an electronic device according to an embodiment of the present invention, and as shown in fig. 8, the electronic device includes: one or more processors 810 and a memory 820, with one processor 810 being an example in FIG. 8. The device for the animation multi-state switching method of the android device can further comprise: an input device 830 and an output device 840. The processor 810, the memory 820, the input device 830, and the output device 840 may be connected by a bus or other means, such as the bus connection in fig. 8. The memory 820 is a non-volatile computer-readable storage medium as described above. The processor 810 executes various functional applications and data processing of the server by running the nonvolatile software programs, instructions and modules stored in the memory 820, that is, the animation multi-state switching method for the android device of the above method embodiment is implemented. The input device 830 may receive input numeric or character information and generate key signal inputs related to user settings and function control of the above-described device. The output device 840 may include a display device such as a display screen.
The product can execute the method provided by the embodiment of the invention, and has corresponding functional modules and beneficial effects of the execution method. For technical details that are not described in detail in this embodiment, reference may be made to the method provided by the embodiment of the present invention.
As an embodiment, the electronic device is applied to an animation multi-state switching apparatus for an android device, and is used for a client, and the apparatus includes: at least one processor; and a memory communicatively coupled to the at least one processor; wherein the memory stores instructions executable by the at least one processor to cause the at least one processor to:
responding to a starting playing instruction of the animation, and setting an animation playing resource list;
loading the corresponding picture resources to the SurfaceView based on the sequence of the picture resources in the resource list;
and calling the SurfaceView to draw and display the loaded picture resources.
The electronic device of the embodiments of the present application exists in various forms, including but not limited to:
(1) a mobile communication device: such devices are characterized by mobile communications capabilities and are primarily targeted at providing voice, data communications. Such terminals include smart phones (e.g., iphones), multimedia phones, functional phones, and low-end phones, among others.
(2) Ultra mobile personal computer device: the equipment belongs to the category of personal computers, has calculation and processing functions and generally has the characteristic of mobile internet access. Such terminals include: PDA, MID, and UMPC devices, etc., such as ipads.
(3) A portable entertainment device: such devices can display and play multimedia content. Such devices include audio and video players (e.g., ipods), handheld game consoles, electronic books, and smart toys and portable car navigation devices.
(4) The server is similar to a general computer architecture, but has higher requirements on processing capability, stability, reliability, safety, expandability, manageability and the like because of the need of providing highly reliable services.
(5) And other electronic devices with data interaction functions.
The above-described embodiments of the apparatus are merely illustrative, and the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment. One of ordinary skill in the art can understand and implement it without inventive effort.
Through the above description of the embodiments, those skilled in the art will clearly understand that each embodiment can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware. With this understanding in mind, the above-described technical solutions may be embodied in the form of a software product, which can be stored in a computer-readable storage medium, such as ROM/RAM, magnetic disk, optical disk, etc., and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the methods of the various embodiments or some parts of the embodiments.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1.An animated multi-state switching method for an android device, wherein the multi-state comprises at least: a speech recognition state and a scene state, the method comprising:
responding to a starting playing instruction of the animation, and setting an animation playing resource list;
loading the corresponding picture resources to the SurfaceView based on the sequence of the picture resources in the resource list;
calling SurfaceView to carry out drawing display on the loaded picture resource,
the method further comprises the following steps:
responding to the control instruction of the animation, calling a Handler to process the control instruction and judging whether state switching is needed or not;
if the state switching is needed, calling a Handler to update the resource list based on the switched state and carrying out corresponding processing on the updated resource list;
if the state switching is not needed, the Handler is called to continue processing the resource list,
wherein the loading the corresponding picture resources to the surfaceView based on the order of the picture resources in the resource list comprises:
invoking a Handler to pre-load the picture resources in the resource list;
the pre-loaded picture resources are drawn into SurfaceView at a fixed frequency.
2. The method of claim 1, further comprising:
and packaging the SurfaceView and the Handler, wherein an exposure control interface is used for controlling, an exposure state callback interface is used for realizing state monitoring, the SurfaceView is used for drawing and displaying the picture, and the Handler is used for drawing specific control and realizing.
3. The method of claim 1, further comprising:
acquiring the occurrence frequency of each picture resource at least based on the resource list;
judging whether the occurrence frequency of each picture resource is greater than or equal to a preset frequency threshold value;
if the frequency is larger than or equal to the preset frequency threshold value, caching the picture resources to reduce the reading and writing frequency.
4. An animated multi-state switching apparatus for an android device, wherein the multi-state comprises at least: a speech recognition state and a scene state, the apparatus comprising:
the list setting module is configured to respond to a starting playing instruction of the animation and set an animation playing resource list;
the loading module is configured to load the corresponding picture resources to the SurfaceView based on the sequence of the picture resources in the resource list;
a drawing module configured to call SurfaceView to draw and display the loaded picture resource,
the device further comprises:
the switching module is configured to respond to the control instruction of the animation, call a Handler to process the control instruction and judge whether state switching is needed or not;
the state updating module is configured to call a Handler to update the resource list based on the switched state and perform corresponding processing on the updated resource list if state switching is required;
a processing module configured to call a Handler to continue processing the resource list if state switching is not required,
wherein the loading module is specifically configured to:
invoking a Handler to pre-load the picture resources in the resource list;
drawing the pre-loaded picture resources into the SurfaceView at a fixed frequency.
5. An electronic device, comprising:
at least one processor, and a memory communicatively coupled to the at least one processor, wherein the memory stores instructions executable by the at least one processor to enable the at least one processor to perform the steps of the method of any of claims 1 to 3.
6. A storage medium having a computer program stored thereon, wherein,
the computer program when executed by a processor implements the steps of the method of any one of claims 1 to 3.
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