如何获得持续的触摸事件？ [英] How to get a continuous Touch Event?

问题描述

我的类扩展视图，我需要得到持续的触摸事件就可以了。

My class extends View and I need to get continuous touch events on it.

如果我使用：

public boolean onTouchEvent(MotionEvent me) {

    if(me.getAction()==MotionEvent.ACTION_DOWN) {
        myAction();
    }
    return true;
}

...触摸事件被捕获一次。

... the touch event is captured once.

如果我需要得到持续的接触，而无需移动手指是什么？ 请告诉我，我不需要使用线程或计时器。我的应用程序已经太多沉重。

What if I need to get continuous touches without moving the finger? Please, tell me I don't need to use threads or timers. My app is already too much heavy.

感谢。

推荐答案

使用如果（me.getAction（）== MotionEvent.ACTION_MOVE）。这是不可能保持手指100％完全静止在屏幕上，以便ACTION_MOVE将被调用每次手指的动作，哪怕只是一两个像素。

Use if(me.getAction() == MotionEvent.ACTION_MOVE). It's impossible to keep a finger 100% completely still on the screen so Action_Move will get called every time the finger moves, even if it's only a pixel or two.

您也可以听 me.getAction（）== MotionEvent.ACTION_UP - 在此之前，用户必须还有他们的手指在屏幕上

You could also listen for me.getAction() == MotionEvent.ACTION_UP - until that happens, the user must still have their finger on the screen.

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