我应该在哪里调用 MediaPlayer.start();

Question

I am new to android development:)

I am trying to run audio in the background using MediaPlayer, I have a foreground service set up my question is where should I call the mediaPlayer.start() do I just call it inside the service class, or do I call it in the activity class and start the service at the same time or do I have to run a thread and call the mediaPlayer.start() inside it while calling the thread inside a service class or activity class?

I tried calling it inside a service class and inside the activity class while calling startService() everything worked fine and the audio did not stop after a while.

Answer 1

You should start media player inside activity class:

// media player uses context to create instance
MediaPlayer mediaPlayer = new MediaPlayer(this);
MediaMetadata mediaMetaData = new MediaMetadata.Builder()
                .putString(MediaMetadata.METADATA_KEY_TITLE, "Your video title").build();

UriMediaItem item = new UriMediaItem.Builder(Uri.parse(url))
                .setMetadata(mediaMetaData) // optional
                .build();

sourceVideoPreview.setPlayer(mediaPlayer);
mediaPlayer.setMediaItem(item);
mediaPlayer.prepare();
mediaPlayer.play();

Note: This code works and you can use it outside activity too, but you need to pass context outside activity to create media player instance.