10.1. Android Audio
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The document provides instructions for playing audio files in Android using the MediaPlayer class. It explains how to create a MediaPlayer object from a raw audio resource, call methods like start(), pause(), stop() to play, pause and stop the audio, and check the playing status with isPlaying(). It also demonstrates how to setup button clicks to call these methods and release the MediaPlayer when the activity stops.
10.1. Android Audio
- 1. 10.1. Audio Oum Saokosal Master of Engineering in Information Systems, South Korea 855-12-252-752 oum_saokosal@yahoo.com
- 2. Play Audio • To play an audio file, you need to use MediaPlayer class. • To create a song, call MediaPlayer.create(this, R.raw.song1). • To start a song, call start() method. • To temporarily stop, call: pause() and seekTo(0). • To test whether the song is playing, call isPlaying(). • To end the song completely, call stop() and release(). • Note: This example uses the internal song. You need to create raw folder in res folder and place a song inside it. To call the song, use R.raw.song_name
- 4. public class PlaySoundActivity extends Activity { MediaPlayer mp; @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.main); mp = MediaPlayer.create(this, R.raw.onthefloor); } public void playSound(View v){ if (mp != null) { if(!mp.isPlaying()) mp.start(); } } public void pauseSound(View v){ if (mp != null) { if (mp.isPlaying()) mp.pause(); } }
- 5. public void stopSound(View v){ if (mp != null) { if (mp.isPlaying()) { mp.pause(); mp.seekTo(0); } } } @Override protected void onStop() { super.onStop(); // deallocate all memory if (mp != null) { if (mp.isPlaying()) mp.stop(); mp.release(); mp = null; } } }//end of class
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