I am making an piano app, in which there is nine buttons and when we touch the button each buttons play a different sound. But now the problems are-
1) when we touch the button it play the sound of that button only and it didn't play the sound of next buttons on moving the fingers.
2)If i use ACTION_UP to stop sound then at these event when we lift the finger from button it stop the sound without finishing the complete sound of that button.
public class Piano_view extends Activity implements View.OnTouchListener {
Button sound1, sound2, sound3, sound4, sound5, sound6, sound7, sound8,
sound9;
MediaPlayer mp1, mp2, mp3, mp4, mp5, mp6, mp7, mp8, mp9;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.piano_view);
initMpFiles();
setVolumeControlStream(AudioManager.STREAM_MUSIC);
sound1 = (Button) findViewById(R.id.one);
sound2 = (Button) findViewById(R.id.second);
sound3 = (Button) findViewById(R.id.three);
sound4 = (Button) findViewById(R.id.four);
sound5 = (Button) findViewById(R.id.five);
sound6 = (Button) findViewById(R.id.six);
sound7 = (Button) findViewById(R.id.seven);
sound8 = (Button) findViewById(R.id.eight);
sound9 = (Button) findViewById(R.id.nine);
sound1.setOnTouchListener(this);
sound2.setOnTouchListener(this);
sound3.setOnTouchListener(this);
sound4.setOnTouchListener(this);
sound5.setOnTouchListener(this);
sound6.setOnTouchListener(this);
sound7.setOnTouchListener(this);
sound8.setOnTouchListener(this);
sound9.setOnTouchListener(this);
}
private void initMpFiles() {
mp1 = MediaPlayer.create(Piano_view.this, R.raw.a4);
mp2 = MediaPlayer.create(Piano_view.this, R.raw.b4);
mp3 = MediaPlayer.create(Piano_view.this, R.raw.c4);
mp4 = MediaPlayer.create(Piano_view.this, R.raw.c5);
mp5 = MediaPlayer.create(Piano_view.this, R.raw.e4);
mp6 = MediaPlayer.create(Piano_view.this, R.raw.b4);
mp7 = MediaPlayer.create(Piano_view.this, R.raw.f4);
mp8 = MediaPlayer.create(Piano_view.this, R.raw.d4);
mp9 = MediaPlayer.create(Piano_view.this, R.raw.g4);
}
@Override
public boolean onTouch(View v, MotionEvent event) {
int id = v.getId();
switch (id) {
case R.id.one:
float x = event.getX();
float y = event.getY();
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp1.start();
mp1.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.second:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp2.start();
mp2.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.three:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp3.start();
mp3.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.four:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp4.start();
mp4.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.five:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp5.start();
mp5.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.six:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp6.start();
mp6.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.seven:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp7.start();
mp7.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.eight:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp8.start();
mp8.seekTo(0);
v.setPressed(true);
return true;
}
break;
case R.id.nine:
if (event.getAction() == android.view.MotionEvent.ACTION_DOWN) {
mp9.start();
mp9.seekTo(0);
v.setPressed(true);
return true;
}
break;
}
return true;
}
}
In such case,you should not use Button.Draw a view contains "9 Buttons" and handle the touch event by your self.