Integrated Android Support Library Media Compat in the Java Library

Integrated Android Support Library Media Compat in the Java Library When developing Android applications, audio and video functions are a common and important needs.In order to provide better audio and video functional support, Android provides SUPPORT LIBRARY Media Compat library, which is part of the Android support library.Integrate Support Library Media Compat, which can help us solve the problem of audio and video compatibility in different Android versions, and provide richer audio and video functions. The steps of integrated SUPPORT LIBRARY Media Compat are as follows: Step 1: Add dependencies to the Build.gradle file In your Android application built.gradle file, add the following dependencies: gradle implementation 'com.android.support:support-media-compat:28.0.0' Step 2: Use MediaSessionCompat MediaSessionCompat is one of the core categories of SUPPORT Library Media Compat.It is used to create and manage media sessions and communicate with media controllers and media browser services (if necessary). The following is an example code for creating the MediaSessionCompat object: MediaSessionCompat mediaSession = new MediaSessionCompat(context, "tag"); Step 3: Set MediaSessionCompat After creating the MediaSessionCompat object, you can set various callbacks to handle different media operations.For example, you can set up a callback to handle operations such as playback, pause, fast forward and fast retreat. The following is a sample code for setting MediaSessionCompat: mediaSession.setCallback(new MediaSessionCompat.Callback() { @Override public void onPlay() { // Processing playback operation } @Override public void onPause() { // Processing pause operation } @Override public void onFastForward() { // Treatment of fast -forward operations } @Override public void onRewind() { // Processing fast -moving operation } }); Step 4: Connect to the media controller In order to be able to display media controllers on the notification bar and lock screen interface, you need to connect the MediaSessionCompat with MediaControllerCompat. The following is an example code that connects MediaControllerCompat: MediaControllerCompat mediaController = new MediaControllerCompat(context, mediaSession.getSessionToken()); MediaControllerCompat.setMediaController(activity, mediaController); Step 5: Processing media controller events Once the media controller is connected, you can handle various media controller events through MediaControllerCompat.For example, you can register a MediaControllerCompat.callback to monitor the changes in the play status or play progress. The following is a sample code for handling media controller events: 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 } }); Through the above steps, you can integrate Android Support Library Media Compat to enhance the audio and video function.I hope this article will be helpful to you when developing voice and video applications!