Android Support Library Media Compat Framework Guide in Java Class Library

Android Support Library Media Compat Framework Guide Guide Android Support Library Media Compat is a powerful library for media functions compatible with different versions of media functions on Android devices.It provides a class and method for processing media play, display and control.This article will introduce you to how to use Android Support Library Media Compat framework. 1. Import library First, you need to add the following dependencies to the project's Build.gradle file to import Android support library media compat library: groovy implementation 'com.android.support:support-media-compat:$version' Please replace the `$ version` to the Android Support Library version you want to use. 2. Create a media controller To display media controllers in the application, you need to create a media controller object.You can use the `MediaControllerCompat` class to implement this.The following is an example code that creates a media controller: MediaSessionCompat mediaSession = new MediaSessionCompat(context, TAG); MediaControllerCompat mediaController = new MediaControllerCompat(context, mediaSession.getSessionToken()); mediaController.registerCallback(new MediaControllerCompat.Callback() { @Override public void onPlaybackStateChanged(PlaybackStateCompat state) { // Treatment of changes in play states } @Override public void onMetadataChanged(MediaMetadataCompat metadata) { // Process media metadata change } }); In the example above, `context` is your application context,` tag` is a identifier, you can provide it with an appropriate name. 3. Connect to media sessions Before using the media controller, you need to connect it to the media session.Use the following code to connect the media controller to the media session: mediaController.connect(); 4. Call the media controller method Once the media controller is connected to the media session, you can control the media play, display and control by calling the method provided by the `MediaControllerCompat` class.Here are some commonly used examples: -Play the media: mediaController.getTransportControls().play(); -Stouling media: mediaController.getTransportControls().pause(); -S to skip the next song: mediaController.getTransportControls().skipToNext(); -S jump back to the previous song: mediaController.getTransportControls().skipToPrevious(); -Set the volume: MediaController.setvolume (0.5F); // Set the volume of 50% -Cap to add or remove the media controller: mediaController.registerCallback(callback); mediaController.unregisterCallback(callback); The above is just some commonly used examples. Android support library media compat also provides many other convenient methods. You can explore and use according to your needs. Summarize Through Android Support Library Media Compat, you can easily handle the functions of media playback, display and control.Before use, make sure to import the library correctly and refer to the example code in the above guide.I hope this article can help you get started and use Android Support Library Media Compat framework.