要实现在WebView上模拟点击效果，效果一直不好，函数是搜索得到的，有几点需要注意：
1、按下和松开之间的时间要相同
2、用dispatchTouchEvent分发事件
3、调用recycle()回收事件
private void setSimulateClick(View view, float x, float y) {
long downTime = SystemClock.uptimeMillis();
final MotionEvent downEvent = MotionEvent.obtain(downTime, downTime,
MotionEvent.ACTION_DOWN, x, y, 0);
//downTime += 2500;
final MotionEvent upEvent = MotionEvent.obtain(downTime, downTime,
MotionEvent.ACTION_UP, x, y, 0);
// view.onTouchEvent(downEvent);
// view.onTouchEvent(upEvent);
view.dispatchTouchEvent(downEvent);
view.dispatchTouchEvent(upEvent);
downEvent.recycle();
upEvent.recycle();
}
