CN117271270A - Method for monitoring Android music playing on Web operating system - Google Patents
Method for monitoring Android music playing on Web operating system Download PDFInfo
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- CN117271270A CN117271270A CN202311552119.5A CN202311552119A CN117271270A CN 117271270 A CN117271270 A CN 117271270A CN 202311552119 A CN202311552119 A CN 202311552119A CN 117271270 A CN117271270 A CN 117271270A
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 22
- 230000001360 synchronised effect Effects 0.000 claims description 5
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- 230000007547 defect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3003—Monitoring arrangements specially adapted to the computing system or computing system component being monitored
- G06F11/302—Monitoring arrangements specially adapted to the computing system or computing system component being monitored where the computing system component is a software system
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3051—Monitoring arrangements for monitoring the configuration of the computing system or of the computing system component, e.g. monitoring the presence of processing resources, peripherals, I/O links, software programs
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/16—Sound input; Sound output
- G06F3/162—Interface to dedicated audio devices, e.g. audio drivers, interface to CODECs
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Abstract
The method for monitoring Android music playing on the Web operating system comprises the following steps: starting an Android music App, and creating a music playing control instance for the Android music App; the music playing control service acquires the control instance, acquires the music playing state information from the control instance and synchronizes the music playing state information to the music playing control client; the music playing control client sends the received music playing state information to the web application through the browser plug-in; the web application sends a music playing control instruction to the music playing control client through the browser plug-in; the music playing control client calls a corresponding control interface of the music playing control service according to the received control instruction; the music playing control service sends a corresponding control event to realize the control of the current music playing state. The method solves the technical problem that the Web application program can not easily monitor the Android music playing state information under the Web operating system compatible with Android operation in the prior art, and greatly improves user experience.
Description
Technical Field
The invention belongs to the field of application communication on an Android operating environment compatible with a Web operating system, and particularly relates to a method for monitoring Android music playing on the Web operating system.
Background
In the pure android system environment, when the music APP is playing, a user can display and control music playing information and states through a music playing control in a system notification bar. And in the web operating system compatible android operating environment, the web application operates in the browser, and when the android music APP is playing, the web application cannot acquire the information and playing state of the current music playing. When the android music App is played in the background, if the user wants to view the information of the currently played music or control the playing of the currently played music, the user needs to click and open the corresponding android music App again to perform related operations, so that user experience is greatly reduced. In order to enable a user to easily monitor the music playing state of an android terminal on a web terminal, the invention provides a method and a mechanism for monitoring the android music playing on a web operating system, and the user can easily and quickly monitor the android music playing on the web operating system.
In the case that the web operating system is compatible with the android operating environment, the android operating environment exists independently, and in order to monitor the playing state of the music App at the android end in the web application and acquire information, a bridge between the web application and the android operating environment needs to be established. The web application runs in the browser and is developed by adopting web languages such as JavaScript, HTML, and the android is developed by adopting languages such as Java and C/C++, so that the web application can call the C/C++ interface of the android in the browser by utilizing a standard browser plug-in interface, and the aim of controlling the playing of the android music is fulfilled.
Disclosure of Invention
In order to solve the defects existing in the prior art, the invention provides a method for monitoring Android music playing on a Web operating system, which comprises the following steps:
s1: starting an Android music App on a web operating system, and creating a music playing control instance for the Android music App by a system service;
s2: the method comprises the steps that a music playing control service obtains a current music playing control instance through a system service, and music playing state information is obtained from the music playing control instance, wherein the music playing state information comprises a music playing state and music playing information;
s3: the music playing control service synchronizes the music playing state information to the music playing control client;
s4: the music playing control client sends the received music playing state information to the web application through the browser plug-in;
s5: the web application sends a music playing control instruction to the music playing control client through the browser plug-in;
s6: the music playing control client calls a calling interface of the music playing control service for controlling the music playing state according to the received control instruction;
s7: the music playing control service sends a corresponding control event to the current music playing control instance to realize the control of the current music playing state.
In the step S2, the music playing control service monitors the change of the current music playing state by registering a monitor with the system service, and obtains the current music playing control instance; the current music playing state and the music playing information are obtained through the music playing control instance, and meanwhile a monitor is registered with the music playing control instance to obtain the dynamic music playing state and the dynamic music playing information in real time.
In the step S2, the step of obtaining, by the music playing control service, the current music playing control instance through the system service includes:
s21: acquiring system service;
s22: calling an 'addOnActiveSessionChangedListier' interface of the system service and registering a 'OnActiveSessionChangedListier' listener with the 'addOnActiveSessionChangedListier' interface;
s23: when the system music playing state is changed, the registered 'OnActiveSessionChangedListener' monitor is called, and the current music playing control instance is acquired in the monitor.
In step S2, the step of the music playing control service obtaining the music playing state and the music playing information from the music playing control instance in real time includes:
s21: acquiring a current music playing control instance;
s22: calling a 'registerCasllback' interface of a music playing control instance and registering 'onMetadataChanged' and 'onPlaybackStateChanged' listeners with the 'registerCallback' interface;
s23: when the music playing information changes, a registered onMetadataChanged monitor is called, and real-time music playing information is acquired in the monitor;
s24: when the music playing state changes, the registered onPlaybackStateChanged monitor is called, and the real-time music playing state is acquired in the monitor.
The music playing control service provides a callback interface for obtaining the music playing state information and a calling interface for controlling the music playing state, and when the real-time music playing information or the state changes, the callback interface is used for notifying the music playing control client;
meanwhile, the music playing control client registers a callback interface for acquiring the music playing state information with the music playing control service to realize the step S3.
The music playing control client also encapsulates a call interface of the music playing control service for controlling the music playing state, so as to implement the step S6.
The music playing control client in the step S4 and the step S5 are packaged in a browser plug-in, and the browser plug-in accords with the bpapi browser plug-in interface standard.
The implementation steps of the browser plug-in comprise:
sa: creating a browser plug-in instance of a bpapi standard interface;
sb: initializing a basic standard interface of a browser plug-in;
sc: creating a music playing control client;
sd: realizing asynchronous call and callback standard interface between browser plug-in and browser;
se: analyzing real-time music playing state information synchronized from the music playing control service to the music playing control client and transmitting the information to the web application;
sf: the messages received from the browser are parsed and converted into corresponding calls to the music play control client.
The method for monitoring the Android music playing on the Web operating system solves the technical problem that the Web application program can not easily monitor the Android music playing state information under the Web operating system compatible with Android operation in the prior art, so that the Web application and the Android are fused in depth, and the user experience feeling is greatly improved.
Drawings
Fig. 1 is a diagram of a logic framework on which a method for monitoring Android music playing on a Web operating system is dependent.
Detailed Description
In order to further understand the technical scheme and beneficial effects of the present invention, the technical scheme and beneficial effects thereof will be described in detail with reference to the accompanying drawings.
The terms explained and agreed in the present invention are as follows:
system service (Media Session Manager): and the basic service in the Android system is used for managing the playing of all music instances in the Android system.
Music play control instance (Media Controller): created by the Android system service (Media Session Manager), manages the status and information of each music playing instance.
Music play control service: and the Android terminal service monitors and acquires the music playing state and information of the Android system in real time, and externally provides a callback interface for acquiring the music playing state information in real time and a calling interface for controlling the music playing state of the Android system.
Music play control client: and the Web end program registers a callback interface for acquiring the music playing state information in real time with the music playing control service, and encapsulates a calling interface of the music playing control service for controlling the music playing state of the Android system.
Browser plug-in: the browser plug-in meeting the bpapi interface standard is similar to the browser plug-in of the Google's ppapi standard, can be loaded by a browser, and web applications can communicate with the plug-in through the standard browser plug-in interface.
Fig. 1 is a logic framework diagram on which a method for monitoring Android music playing on a Web operating system according to the present invention relies, as shown in fig. 1, in order to monitor Android music playing on the Web operating system, in an environment where the Web operating system is compatible with Android operation, by opening a data control flow, music playing state information of an Android terminal is synchronized to a Web terminal application, and meanwhile, the Web terminal application sends a music playing control instruction to the Android terminal to realize control of the Android music playing state, where the method relies on a logic framework comprising:
music play control service module, function: 1. monitoring and acquiring music playing state and information of an Android system in real time; 2. providing a callback interface for obtaining the music playing state information externally, and synchronizing the real-time music playing state information to a music playing control client through the callback interface; 3. and a calling interface for controlling the music playing state of the Android system is externally provided, and when the interface is called, a standard system audio Key Event (Key Event) with a corresponding control function is sent to a current music playing control instance (Media Controller) to realize the control of music playing.
Browser plug-in module, function: 1. and a music playing control client is encapsulated, the client registers a callback interface for acquiring the music playing state information to the music playing control service, and the real-time Android system music playing state information of the music playing control service is synchronized to the client through the callback interface. 2. And sending the real-time Android system music playing state information to the web application through the browser plug-in interface. 3. And converting the music control instruction sent by the web application into a corresponding control interface-calling interface for calling the music playing control service, so as to realize the control of the music playing state of the Android system.
The specific implementation method comprises the following steps:
s1: starting an Android music App on the web operating system, and creating a music play control instance (Media Controller) by the system service (Media Session Manager) for the Android music App, namely, after each music App starts playing, creating a corresponding music play control instance (Media Controller) by the system service (Media Session Manager), wherein the play states of playing, pausing, stopping and the like of music and music information such as a music name, a singer name, an album name and the like are managed and saved by the corresponding music play control instance;
s2: the music playing control service obtains a current music playing control instance (Media Controller) through a system service (Media Session Manager), and obtains music playing state information from the music playing control instance (Media Controller), wherein the music playing state information comprises a music playing state and music playing information;
s3: the music playing control service synchronizes the music playing state information to the music playing control client;
s4: the music playing control client sends the received music playing state information to the web application through the browser plug-in;
s5: the web application sends music playing control instructions (such as playing/pausing, up/down, volume amplifying/small) to the music playing control client through the browser plug-in;
s6: the music playing control client calls a calling interface of the music playing control service for controlling the music playing state according to the received control instruction;
s7: the music playing control service sends a corresponding control event to the current music playing control instance (Media Controller) to realize the control of the current music playing state, specifically, when the calling interface of the music playing control service is called, a standard system audio control key event (KeyEvent) is created, and the event is sent to the current music playing control instance (Media Controller) so as to achieve the purpose of controlling music playing.
In step S2, the music playing control service monitors the change of the current music playing state by registering a monitor with the system service, and obtains the current music playing control instance; the current music playing state and the music playing information are obtained through the music playing control instance, and meanwhile, a monitor is registered with the music playing control instance to obtain the dynamic music playing state and the music playing information in real time, such as playing the new music playing state and the new music playing information after the last/next playing.
Specifically, the step of the music play control service acquiring the current music play control instance (Media Controller) through the system service (Media Session Manager) includes:
s21: acquiring a system service (Media Session Manager);
s22: invoking an "addActiveSessionChangedListier" interface of the system service (Media Session Manager) and registering a "OnActiveSessionChangedListier" listener therewith;
s23: when the system music playing state is changed, a registered OnActiveSessionChangedListener monitor is called, and a current music playing control instance (Media Controller) is acquired in the monitor.
The step of the music play control service acquiring music play status information in real time from a music play control instance (Media Controller) includes:
s21: acquiring a current music playing control instance (Media Controller);
s22: calling a ' register call ' interface of a music play control instance (Media Controller) and registering ' onMetadataChanged ' and ' onPlaybackStateChanged ' listeners with the ' register call interface;
s23: when the music playing information changes, the registered "onMetadataChanged" monitor is called, and the real-time music playing information is acquired in the monitor, for example: music name, singer name, album name, etc.;
s24: when the music playing state changes, the registered onPlaybackStateChanged monitor is called, and the real-time music playing state is acquired in the monitor, for example: play, pause, stop.
Noun interpretation:
AddOnActiveSessionChangedListener, an external interface to the system service (Media Session Manager) for registering listeners with the system service.
OnActiveSessionChangedListener: a listener for listening to changes in a currently active music play control instance (Media Controller).
registerCallback: an external interface of a music play control instance (Media Controller) for registering a listener with the music play control instance.
onmetaatachanged: and a monitor for monitoring changes in music playing information, such as singer name, album name, etc.
onPlaybackStateChanged: a monitor for monitoring the change of the playing state of the music, such as pause, play, stop, etc.
In step S3, the music playing control service provides a callback interface for obtaining the music playing state information and a call interface for controlling the music playing state, and notifies the music playing control client through the callback interface after the real-time music playing information or state changes.
In step S6, the music playing control client registers a callback interface for acquiring the music playing state information with the music playing control service, and encapsulates a call interface for controlling the music playing state of the music playing control service.
The music play control client is encapsulated in a browser plug-in that meets the bpapi browser plug-in interface standard. The bpapi browser plug-in interface standard is similar to the Google's ppapi browser plug-in interface standard, and can be loaded by a browser. After the browser loads the plug-in, the web application can communicate with the music playing control client in the plug-in through the plug-in.
The implementation steps of the browser plug-in comprise:
1. a browser plug-in instance of the bpapi standard interface is created.
2. The basic standard interfaces of the plug-in are initialized, such as "create", "destroy", etc.
3. A music play control client is created.
4. An asynchronous call interface and a callback interface between the plug-in and the browser are realized, such as 'receiving browser information', 'synchronizing information to the browser', and the like.
5. And analyzing real-time music playing state information synchronized from the music playing control service to the music playing control client and transmitting the music playing state information to the web application.
6. The messages received from the browser are parsed and converted into corresponding calls to the music play control client, such as "play next", "pause", etc.
The method for monitoring the Android music playing on the web operating system is applied to an environment in which the web operating system is compatible with Android operation, achieves the function of monitoring the Android music playing state information in the web application, solves the defect that the Android music playing state is difficult to control at the web end, fully highlights the flexibility of products, meets the personalized requirements of users of the web operating system, enables the Android music playing to achieve real web end operation, and improves better operation experience and visual experience for the users.
Although the present invention has been described with reference to the above preferred embodiments, it should be understood that the present invention is not limited to the above embodiments, and that various changes and modifications can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (8)
1. The method for monitoring Android music playing on the Web operating system is characterized by comprising the following steps of:
s1: starting an Android music App on a web operating system, and creating a music playing control instance for the Android music App by a system service;
s2: the method comprises the steps that a music playing control service obtains a current music playing control instance through a system service, and music playing state information is obtained from the music playing control instance, wherein the music playing state information comprises a music playing state and music playing information;
s3: the music playing control service synchronizes the music playing state information to the music playing control client;
s4: the music playing control client sends the received music playing state information to the web application through the browser plug-in;
s5: the web application sends a music playing control instruction to the music playing control client through the browser plug-in;
s6: the music playing control client calls a calling interface of the music playing control service for controlling the music playing state according to the received control instruction;
s7: the music playing control service sends a corresponding control event to the current music playing control instance to realize the control of the current music playing state.
2. The method for monitoring Android music playing on Web operating system according to claim 1, wherein in step S2, the music playing control service monitors a change of a current music playing state by registering a monitor with the system service, and obtains a current music playing control instance; the current music playing state and the music playing information are obtained through the music playing control instance, and meanwhile a monitor is registered with the music playing control instance to obtain the dynamic music playing state and the dynamic music playing information in real time.
3. The method for monitoring Android music playing on a Web operating system according to claim 2, wherein in step S2, the step of obtaining, by the music playing control service, the current music playing control instance through the system service includes:
s21: acquiring system service;
s22: calling an 'addOnActiveSessionChangedListier' interface of the system service and registering a 'OnActiveSessionChangedListier' listener with the 'addOnActiveSessionChangedListier' interface;
s23: when the system music playing state is changed, the registered 'OnActiveSessionChangedListener' monitor is called, and the current music playing control instance is acquired in the monitor.
4. The method for monitoring Android music playing on Web operating system as recited in claim 3, wherein in step S2, the step of obtaining the music playing state and the music playing information from the music playing control instance in real time by the music playing control service includes:
s21: acquiring a current music playing control instance;
s22: calling a 'registerCasllback' interface of a music playing control instance and registering 'onMetadataChanged' and 'onPlaybackStateChanged' listeners with the 'registerCallback' interface;
s23: when the music playing information changes, a registered onMetadataChanged monitor is called, and real-time music playing information is acquired in the monitor;
s24: when the music playing state changes, the registered onPlaybackStateChanged monitor is called, and the real-time music playing state is acquired in the monitor.
5. The method for monitoring Android music playing on a Web operating system according to claim 1, wherein the music playing control service provides a callback interface for obtaining music playing state information and a call interface for controlling music playing state externally, and when real-time music playing information or state changes, the callback interface is used for notifying a music playing control client;
meanwhile, the music playing control client registers a callback interface for acquiring the music playing state information with the music playing control service to realize the step S3.
6. The method for monitoring Android music playing on a Web operating system according to claim 5, wherein the music playing control client further encapsulates a call interface for controlling a music playing state of the music playing control service to implement said step S6.
7. The method for monitoring Android music playing on a Web operating system according to claim 1, wherein the music playing control clients in step S4 and step S5 are encapsulated in a browser plug-in, and the browser plug-in conforms to a bpapi browser plug-in interface standard.
8. The method for monitoring Android music playing on a Web operating system as recited in claim 7, wherein the browser plug-in implementation step comprises:
sa: creating a browser plug-in instance of a bpapi standard interface;
sb: initializing a basic standard interface of a browser plug-in;
sc: creating a music playing control client;
sd: realizing asynchronous call and callback standard interface between browser plug-in and browser;
se: analyzing real-time music playing state information synchronized from the music playing control service to the music playing control client and transmitting the information to the web application;
sf: the messages received from the browser are parsed and converted into corresponding calls to the music play control client.
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