阿权的书房

package com.aslibra.test;

import android.app.Activity;
import android.graphics.Color;
import android.os.Bundle;
import android.util.Log;
import android.view.GestureDetector;
import android.view.MotionEvent;
import android.view.GestureDetector.OnGestureListener;
import android.widget.LinearLayout;
import android.widget.TextView;

/*
* 自定义双击等待时间
* http://www.aslibra.com/blog/post/android_doubleClick.php
*/
public class touchGesture extends Activity implements OnGestureListener {      
  private LinearLayout main;      
  private TextView viewA;
  private boolean waitDoubleClick = false;
  private static final int DOUBLE_CLICK_TIME = 350;

  private GestureDetector gestureScanner;

  @Override  
  public void onCreate(Bundle savedInstanceState) {  
    super.onCreate(savedInstanceState);  

    gestureScanner = new GestureDetector(this);  

    main = new LinearLayout(this);  
    main.setBackgroundColor(Color.GRAY);
    main.setLayoutParams(new LinearLayout.LayoutParams(320,480));
    main.setOrientation(LinearLayout.VERTICAL);

    viewA = new TextView(this);
    viewA.setBackgroundColor(Color.YELLOW);
    viewA.setTextColor(Color.BLACK);  
    viewA.setTextSize(16);
    viewA.setLayoutParams(new LinearLayout.LayoutParams(320,50));  
    main.addView(viewA);

    setContentView(main);  
  }

  @Override  
  public boolean onTouchEvent(MotionEvent me) {  
    return gestureScanner.onTouchEvent(me);  
  }  

  @Override  
  public boolean onDown(MotionEvent e) {  
    //viewA.setText("-" + "DOWN" + "-");  
    return true;  
  }  

  @Override  
  public boolean onFling(MotionEvent e1, MotionEvent e2, float velocityX, float velocityY) {  
    //viewA.setText("-" + "FLING" + "- "+velocityX + "- "+velocityY);  
    Log.v("test", "onFling "+e1.getX()+" "+e2.getX());
    return true;  
  }  

  @Override  
  public void onLongPress(MotionEvent e) {  
    //viewA.setText("-" + "LONG PRESS" + "-");  
  }  

  @Override  
  public boolean onScroll(MotionEvent e1, MotionEvent e2, float distanceX, float distanceY) {  
    //viewA.setText("-" + "SCROLL" + "- "+distanceX + "- "+distanceY);  
    Log.v("test", "onScroll "+e1.getX()+" "+e2.getX());
    return true;  
  }  

  @Override  
  public void onShowPress(MotionEvent e) {  
    //viewA.setText("-" + "SHOW PRESS" + "-");  
  }

  @Override  
  public boolean onSingleTapUp(MotionEvent e) {  
    //viewA.setText("-" + "SINGLE TAP UP" + "-"+ i++);  
    Log.v("test", "onSingleTapUp "+e.getX()+" "+e.getY());
    if(!waitDoubleClick){
      waitDoubleClick = true;
      Log.v("test", "waitDoubleClick");
      //等待下次点击
      Thread checkUpdate = new Thread() {    
        public void run() {
          //固定时间后如果还没有改变状态，说明是单击，取消等待状态
          try {
            sleep( DOUBLE_CLICK_TIME );
            if(waitDoubleClick){
              waitDoubleClick = false;
              Log.v("test", "cancle waitDoubleClick");
            }
          } catch (InterruptedException e) {
            e.printStackTrace();
          }
        }  
      };
      checkUpdate.start();  
      viewA.setText("");
    }else{
      //双击
      waitDoubleClick = false;
      onDoubleClick();
    }
    return true;  
  }  

  //双击事件
  private void onDoubleClick(){
    viewA.setText("dobule click");
    Log.v("test", "DoubleClick");      
  }
  
  
}