package app.test;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.MotionEvent;
import android.view.VelocityTracker;
public class Test extends Activity {
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.main);
}
private VelocityTracker vTracker = null;
public boolean onTouchEvent(MotionEvent event) {
int action = event.getAction();
switch(action) {
case MotionEvent.ACTION_DOWN:
if(vTracker == null) {
vTracker = VelocityTracker.obtain();
}
else {
vTracker.clear();
}
vTracker.addMovement(event);
break;
case MotionEvent.ACTION_MOVE:
vTracker.addMovement(event);
vTracker.computeCurrentVelocity(1000);
Log.v("", "X velocity is " + vTracker.getXVelocity() +" pixels per second");
Log.v("", "Y velocity is " + vTracker.getYVelocity() +" pixels per second");
break;
case MotionEvent.ACTION_UP:
case MotionEvent.ACTION_CANCEL:
vTracker.recycle();
break;
}
return true;
}
}