Android 为View实现双击效果

Android 默认是没有双击事件的，不知道为什么~~..  不多说，直接上代码。

首先增加一个双击事件接口：

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public interface OnDoubleClickListener {

    public void OnSingleClick(View v);

    public void OnDoubleClick(View v);

}

  

然后再添加一个方法：

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/**

 * 注册一个双击事件

 * 改自网友的，增加  Handler  处理，如果不加这个，会引起线程安全之类错误。<br>     */

public static void registerDoubleClickListener(View view, final OnDoubleClickListener listener){

    if(listener==null) return;

    view.setOnClickListener(new View.OnClickListener() {

        private static final int DOUBLE_CLICK_TIME = 350;        //双击间隔时间350毫秒

        private boolean waitDouble = true; 

         

        private Handler handler = new Handler(){

            @Override

            public void handleMessage(Message msg) {

                listener.OnSingleClick((View)msg.obj);

            }

             

        };

         

        //等待双击

        public void onClick(final View v) {

            if(waitDouble){

                waitDouble = false;        //与执行双击事件

                new Thread(){

 

                    public void run() {

                        try {

                            Thread.sleep(DOUBLE_CLICK_TIME);

                        } catch (InterruptedException e) {

                            // TODO Auto-generated catch block

                            e.printStackTrace();

                        }    //等待双击时间，否则执行单击事件

                        if(!waitDouble){

                            //如果过了等待事件还是预执行双击状态，则视为单击

                            waitDouble = true;

                            Message msg = handler.obtainMessage(); 

                            msg.obj = v;

                            handler.sendMessage(msg);

                        }

                    }

                     

                }.start();

            }else{

                waitDouble = true;

                listener.OnDoubleClick(v);    //执行双击

            }

        }

    });

}

　　

最后注册事件：

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ImageView imageview = (ImageView)findViewById(R.id.imageview1);registerDoubleClickListener(imageview, this);