处理Android中双击事件

最新推荐文章于 2024-05-28 10:28:01 发布

tiankongchengS

最新推荐文章于 2024-05-28 10:28:01 发布

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分类专栏： android开发

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本文介绍了一种在Android中实现双击事件监听的方法。通过自定义`OnDoubleClickListener`类继承`View.OnTouchListener`，利用两次点击的时间间隔来判断是否为双击操作，并提供了回调接口以执行双击响应逻辑。

public class OnDoubleClickListener implements View.OnTouchListener{

    private int count = 0;
    private long firstClick = 0;
    private long secondClick = 0;

    private final int duration = 1000;

    private DoubleClickCallback mDoubleClickCallback;

    public interface DoubleClickCallback{
        void onDoubleClick();
    }

    public OnDoubleClickListener(DoubleClickCallback doubleClickCallback) {
        mDoubleClickCallback = doubleClickCallback;
    }

    @Override
    public boolean onTouch(View v, MotionEvent event) {

        if (event.getAction() == MotionEvent.ACTION_DOWN){
            count ++;
            if (count == 1){
                firstClick = System.currentTimeMillis();
            }else if (count == 2){
                secondClick = System.currentTimeMillis();
                if (secondClick - firstClick<duration){
                    if (mDoubleClickCallback!=null){
                        mDoubleClickCallback.onDoubleClick();
                    }
                    count = 0;
                    firstClick = 0;
                    return true;
                }else {
                    firstClick = secondClick;
                    count = 1;
                }
                secondClick = 0;
            }
        }
	//最后要返回false 不然单击事件会被屏蔽掉
        return false;
    }
}

ll_total.setOnTouchListener(new OnDoubleClickListener(new OnDoubleClickListener.DoubleClickCallback() {
    @Override
    public void onDoubleClick() {
        mDealDoubleClick.dealDoubleClick();
    }
}));