Detect when MediaPlayer has finished playing a track

Have you ever wondered how to know when the MediaPlayer has finished playing a track?

In this tutorial, we will explore different methods and approaches to detect the end of a media playback using the MediaPlayer class in Android. We will discuss various techniques and demonstrate how to implement them in your own applications.

The MediaPlayer class in Android provides a range of useful functionalities for playing audio and video files. However, it does not provide a direct method to determine when the media playback has completed.

But fear not! There are multiple ways to achieve this and we will cover some of the most commonly used approaches. We will show you how to utilize listeners, handle completion events, and use callbacks to detect when a track has finished playing.

By the end of this tutorial, you will have a clear understanding of how to accurately detect when the MediaPlayer has finished playing a track, allowing you to add custom behaviors or control the flow of your application based on the completion of media playback.

Detecting MediaPlayer Completion

When working with the MediaPlayer class in Android, it is important to be able to detect when a track has finished playing so that you can perform any necessary actions or updates to your application.

One way to detect when the MediaPlayer has completed playing a track is by using the setOnCompletionListener method. This method allows you to register a listener that will be called when the MediaPlayer has finished playing.

To use this method, you first need to create an instance of the MediaPlayer class and set the data source for the track you want to play. Then, you can call the setOnCompletionListener method and pass in a listener object.

The listener object should implement the MediaPlayer.OnCompletionListener interface and override the onCompletion method. This method will be called when the MediaPlayer has finished playing the track.

Inside the onCompletion method, you can perform any necessary actions, such as updating the UI, playing the next track, or displaying a message to the user.

Here is an example of how you can use the setOnCompletionListener method:

MediaPlayer mediaPlayer = new MediaPlayer();
mediaPlayer.setDataSource("path/to/your/track.mp3");
mediaPlayer.setOnCompletionListener(new MediaPlayer.OnCompletionListener() {
public void onCompletion(MediaPlayer mp) {
// Perform any necessary actions
}
});
mediaPlayer.prepare();
mediaPlayer.start();

In this example, the onCompletion method will be called when the MediaPlayer has finished playing the track. You can replace the comment «// Perform any necessary actions» with your own code to handle the completion event.

Methods for Track Completion Detection

When working with a MediaPlayer in an application, it can be important to know when a track has finished playing. There are several methods you can use to detect track completion, depending on your specific needs.

1. Using onCompletionListener

One common method is to implement the OnCompletionListener interface and use its callback method onCompletion. This method will be called when the MediaPlayer has finished playing a track. You can then perform any necessary actions or start playing the next track in your application.


mediaPlayer.setOnCompletionListener(new OnCompletionListener() {
  public void onCompletion(MediaPlayer mediaPlayer) {
     // Track has finished playing, perform necessary actions
  }
});

2. Using onInfoListener

Another method is to implement the OnInfoListener interface and use its callback method onInfo. The onInfo method is called when the MediaPlayer enters a new informational state. You can check if the state is MEDIA_INFO_VIDEO_RENDERING_START or MEDIA_INFO_BUFFERING_END to determine if the track has finished playing.


mediaPlayer.setOnInfoListener(new OnInfoListener() {
  public boolean onInfo(MediaPlayer mediaPlayer, int what, int extra) {
    if (what == MediaPlayer.MEDIA_INFO_VIDEO_RENDERING_START

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