GestureDetector

package com.example.TouchSmpl;
 
import android.app.Activity;
import android.content.Context;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.View;
import android.widget.LinearLayout;
import android.widget.TextView;
 
public class MainActivity extends Activity implements GestureDetector.OnGestureListener, View.OnTouchListener {
    TextView tv1;
    GestureDetector gestureDetector;
    Context ctx;
    LinearLayout ll;
 
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        tv1 = (TextView) findViewById(R.id.tv1);
        ll = (LinearLayout) findViewById(R.id.ll);
        ll.setOnTouchListener(this);
        ctx = this;
        gestureDetector = new GestureDetector(ctx, this);
 
    }
 
    private void Log(String msg) {
        final String LOGTAG = getPackageName();
        Log.d(LOGTAG, msg);
    }
 
    @Override
    public boolean onDown(MotionEvent motionEvent) {
        Log("onDown");
        return false;  //To change body of implemented methods use File | Settings | File Templates.
    }
 
    @Override
    public void onShowPress(MotionEvent motionEvent) {
        Log("onShowPress");
        //To change body of implemented methods use File | Settings | File Templates.
    }
 
    @Override
    public boolean onSingleTapUp(MotionEvent motionEvent) {
        Log("onSingleTapUp");
        return false;  //To change body of implemented methods use File | Settings | File Templates.
    }
 
    @Override
    public boolean onScroll(MotionEvent motionEvent, MotionEvent motionEvent2, float v, float v2) {
        Log("onScroll");
        return false;  //To change body of implemented methods use File | Settings | File Templates.
    }
 
    @Override
    public void onLongPress(MotionEvent motionEvent) {
        Log("onLongPress");
        //To change body of implemented methods use File | Settings | File Templates.
    }
 
    @Override
    public boolean onFling(MotionEvent motionEvent, MotionEvent motionEvent2, float v, float v2) {
        Log("onFling");
        return false;  //To change body of implemented methods use File | Settings | File Templates.
    }
 
    @Override
    public boolean onTouchEvent(MotionEvent event) {
        Log("onTouchEvent");
        return gestureDetector.onTouchEvent(event);
    }
 
    @Override
    public boolean onTouch(View view, MotionEvent motionEvent) {
        Log("onTouchEvent");
        return false;
    }
}