public class MainActivity extends Activity implements OnTouchListener {
	public void onCreate(Bundle outState) {
  	super.onCreate(outState);
  	setContentView(R.layout.main);
  	TextView tv = (TextView) findViewById(R.id.tv);
  	tv.setOnTouchListener(this);
  }

  public boolean onTouch(View v, MotionEvent event) {
  	Toast.makeText(this, "Touch Touch", Toast.LENGTH_SHORT).show();
		return false ; 
  }
}

public class MainActivity extends Activity implements OnTouchListener, OnGestureListener {
	private GestureDetector mGestureDetector; 

	public void onCreate(Bundle outState) {
  	super.onCreate(outState);
  	setContentView(R.layout.main);

  	mGestureDetector = new GestureDetector(this);
  	TextView tv = (TextView) findViewById(R.id.tv);
  	tv.setOnTouchListener(this);
  }

  public boolean onTouch(View v, MotionEvent event) {
  	return mGestureDetector.onTouchEvent(event);
  }

  // 用戶(hù)輕觸觸摸屏，由1個(gè)MotionEvent ACTION_DOWN觸發(fā) 
  public boolean onDown(MotionEvent arg0) {
		Log.i("MyGesture", "onDown");
		Toast.makeText(this, "onDown", Toast.LENGTH_SHORT).show();   
		return true;
	}

	// 用戶(hù)輕觸觸摸屏，尚未松開(kāi)或拖動(dòng)，由一個(gè)1個(gè)MotionEvent ACTION_DOWN觸發(fā), 注意和onDown()的區(qū)別，強(qiáng)調(diào)的是沒(méi)有松開(kāi)或者拖動(dòng)的狀態(tài)
	public void onShowPress(MotionEvent e) {
		Log.i("MyGesture", "onShowPress");      
		Toast.makeText(this, "onShowPress", Toast.LENGTH_SHORT).show();
	}

	// 用戶(hù)（輕觸觸摸屏后）松開(kāi)，由一個(gè)1個(gè)MotionEvent ACTION_UP觸發(fā)

	public  boolean onSingleTapUp(MotionEvent e) {
		Log.i("MyGesture", "onSingleTapUp");
		Toast.makeText(this, "onSingleTapUp", Toast.LENGTH_SHORT).show();
		return true;
	}

	// 用戶(hù)按下觸摸屏、快速移動(dòng)后松開(kāi)，由1個(gè)MotionEvent ACTION_DOWN, 多個(gè)ACTION_MOVE, 1個(gè)ACTION_UP觸發(fā)    

	public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {  
		Log.i("MyGesture", "onFling");
		Toast.makeText(this, "onFling", Toast.LENGTH_LONG).show();   
		return true;
	}

 	// 用戶(hù)按下觸摸屏，并拖動(dòng)，由1個(gè)MotionEvent ACTION_DOWN, 多個(gè)ACTION_MOVE觸發(fā)

	public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {      
		Log.i("MyGesture", "onScroll");
 		Toast.makeText(this, "onScroll", Toast.LENGTH_LONG).show();
		return true;
 	}

 	// 用戶(hù)長(zhǎng)按觸摸屏，由多個(gè)MotionEvent ACTION_DOWN觸發(fā)

	public  void onLongPress(MotionEvent e) {
		Log.i("MyGesture", "onLongPress");
		Toast.makeText(this, "onLongPress", Toast.LENGTH_LONG).show();
 	}
}