Android自定义长按事件

Android系统自带了长按事件，setOnLongClickListener即可监听。但是有时候，你不希望用系统的长按事件，比如当希望长按的时间更长一点的时候。这时候就需要自己来定义这个长按事件了。

[1].[代码] [Java]代码 跳至 [1]

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package chroya.fun;       import android.content.Context;    import android.view.MotionEvent; import android.view.View;    import android.view.ViewConfiguration;       public class LongPressView1 extends View{        private int mLastMotionX, mLastMotionY;        //是否移动了        private boolean isMoved;        //是否释放了        private boolean isReleased;        //计数器，防止多次点击导致最后一次形成longpress的时间变短        private int mCounter;        //长按的runnable        private Runnable mLongPressRunnable;        //移动的阈值        private static final int TOUCH_SLOP = 20 ;           public LongPressView1(Context context) {            super (context);            mLongPressRunnable = new Runnable() {                                @Override              public void run() {                    mCounter--;                    //计数器大于0，说明当前执行的Runnable不是最后一次down产生的。                    if (mCounter> 0 || isReleased || isMoved) return ;                    performLongClick();                }            };        }           public boolean dispatchTouchEvent(MotionEvent event) {         int x = ( int ) event.getX();            int y = ( int ) event.getY();                        switch (event.getAction()) {            case MotionEvent.ACTION_DOWN:                mLastMotionX = x;                mLastMotionY = y;                mCounter++;                isReleased = false ;                isMoved = false ;                postDelayed(mLongPressRunnable, ViewConfiguration.getLongPressTimeout());                break ;            case MotionEvent.ACTION_MOVE:                if (isMoved) break ;                if (Math.abs(mLastMotionX-x) > TOUCH_SLOP                         || Math.abs(mLastMotionY-y) > TOUCH_SLOP) {                    //移动超过阈值，则表示移动了                    isMoved = true ;                }                break ;            case MotionEvent.ACTION_UP:                //释放了                isReleased = true ;                break ;            }            return true ;        }    }