Android: View + touch listener

1. implements View.OnTouchListener
2. add public boolean onTouch(View v, MotionEvent event) method
3. view.setOnTouchListener(this);
4. event.getX() or getY() to get position of touch

sample code:

public class SecondActivity extends Activity implements View.OnTouchListener{

MyCanvas c;

TextView tv;

@Override

protected void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.activity_second);

c = (MyCanvas)this.findViewById(R.id.myCanvas1);

tv = (TextView)this.findViewById(R.id.textView1);

c.setOnTouchListener(this);

}

@Override

public boolean onCreateOptionsMenu(Menu menu) {

// Inflate the menu; this adds items to the action bar if it is present.

getMenuInflater().inflate(R.menu.second, menu);

return true;

}

public boolean onTouch(View v, MotionEvent event){

if(v ==c ){

tv.setText("touched: " + event.getX() + ", " + event.getY());

}

return false;

}

}