GestureDetector使用实例

package com.example.test1;import android.app.Activity;import android.content.Context;import android.content.Intent;import android.os.Bundle;import android.view.GestureDetector;import android.view.GestureDetector.SimpleOnGestureListener;import android.view.Menu;import android.view.MotionEvent;import android.widget.Toast;/*双击时调用过程如下onDown（第一下按下） onSingleTapUp（第一下抬起） onDoubleTap,onDoubleTapEvent，onDown（第二下按下） onDoubleTapEvent（第二下抬起）*/class MyGestureLintener extends SimpleOnGestureListener {private Context context;public MyGestureLintener(Context context) {    super();    this.context = context;}// 单击，触摸屏按下时立刻触发@Overridepublic boolean onDown(MotionEvent e) {    // TODO Auto-generated method stub    System.out.println("onDown");    return true;}// 双击，手指在触摸屏上迅速点击第二下时触发@Overridepublic boolean onDoubleTap(MotionEvent e) {    // TODO Auto-generated method stub     System.out.println("onDoubleTap");    return super.onDoubleTap(e);}// 双击的按下跟抬起各触发一次@Overridepublic boolean onDoubleTapEvent(MotionEvent e) {    // TODO Auto-generated method stub     System.out.println("onDoubleTapEvent");    return super.onDoubleTapEvent(e);}// 滑动，触摸屏按下后快速移动并抬起，会先触发滚动手势，跟着触发一个滑动手势@Overridepublic boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX,        float velocityY) {    // TODO Auto-generated method stub    System.out.println("onFling");    return super.onFling(e1, e2, velocityX, velocityY);}// 长按，触摸屏按下后既不抬起也不移动，过一段时间后触发@Overridepublic void onLongPress(MotionEvent e) {    // TODO Auto-generated method stub    System.out.println("onLongPress");}// 滚动，触摸屏按下后移动@Overridepublic boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX,        float distanceY) {    System.out.println("onScroll");    return true;}// 短按，触摸屏按下后片刻后抬起，会触发这个手势，如果迅速抬起则不会,长按也会在onLongPress之前调用此函数@Overridepublic void onShowPress(MotionEvent e) {    // TODO Auto-generated method stub    System.out.println("onShowPress");}// 单击确认，即很快的按下并抬起，但并不连续点击第二下@Overridepublic boolean onSingleTapConfirmed(MotionEvent e) {    // TODO Auto-generated method stub    System.out.println("onSingleTapConfirmed");    return true;}// 抬起，手指离开触摸屏时触发(长按、滚动、滑动时，不会触发这个手势；单击和短按会出发这个手势)@Overridepublic boolean onSingleTapUp(MotionEvent e) {    // TODO Auto-generated method stub    System.out.println("onSingleTapUp");    return true;}}public class MainActivity extends Activity {private GestureDetector mGestureDetector;//手势对象private MyGestureLintener myGestureLintener;//手势监听的接口对象@Overrideprotected void onCreate(Bundle savedInstanceState) {    super.onCreate(savedInstanceState);    setContentView(R.layout.activity_main11);    myGestureLintener = new MyGestureLintener(this);    //手势对象的构造方法    mGestureDetector = new GestureDetector(this,            myGestureLintener);}/**GestureDetector类的onTouchEvent方法用来辨别不同的手势*/@Overridepublic boolean onTouchEvent(MotionEvent event) {    boolean b = false;    int i = event.getAction();    int j = MotionEvent.ACTION_MOVE;    System.out.println(i+"<----------------->"+j);    b = mGestureDetector.onTouchEvent(event);    return b;}}
GestureDetector使用实例

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