按下后退按钮时如何停止播放的音频？

Question

This is my code :

public class MainActivity extends AppCompatActivity {

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    final MediaPlayer imp = MediaPlayer.create(this,R.raw.cat);
    ImageButton btn = (ImageButton)findViewById(R.id.dog);
    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            imp.start();
        }
    });


    }
}

Answer 1

Use the code below:

@Override
public void onBackPressed() {
    super.onBackPressed();
    imp.stop();
}

Answer 2

Override the activity's onBackPressed(). Something like:

@Override
public void onBackPressed() {
    super.onBackPressed();
    if (imp.isPlaying()) {
        imp.stop();
    }
}

Answer 3

Try this following code to stop Audio file.

@Override
public void onBackPressed ()
{
  if (mp != null)
    mp.stop();
  super.onBackPressed();
}

I hope this may help you.