我将如何设置的ImageButton只有当我的手指触摸它改变 [英] How would I set an ImageButton to change only when my finger is touching it

问题描述

我想创建一个事件来改变什么我的图像按钮的样子，但只有当被按下了。到目前为止，我一直使用的是onTouch听众，但只是改变其永久。我找不到像按钮的onKyeUpListener（）类型的东西什么。

有没有这样的事情存在吗？

解决

 最后的ImageButton按钮=（的ImageButton）findViewById（R.id.ImageButton01）;    button.setOnTouchListener（新View.OnTouchListener（）{        @覆盖
        公共布尔onTouch（视图V，MotionEvent事件）{            如果（event.getAction（）==（MotionEvent.ACTION_UP））{
                //完成后preSS任何你想要的
            }
            其他{
                //做preSS在任何你想要的
            }
            返回true;
        }
    }）;
 

解决方案

从的 http://developer.android.com/guide/topics/ui/ui-events.html ：

  

onTouch（）...当用户执行作为一个合格的触摸事件，包括preSS，释放，或在屏幕上的任何动作姿态（该项目的范围内）的动作这就是所谓。

在换句话说， onTouch 也呼吁释放事件。看看 MotionEvent.getAction（）。

I want to create an event to change what my image button looks like, but only when it is being pushed down. So far I have been using an onTouch listener, but that just changes it permanently. I can't find anything like an onKyeUpListener() type of thing for the button.

Does anything like this exist?

SOLVED

    final ImageButton button = (ImageButton) findViewById(R.id.ImageButton01);

    button.setOnTouchListener(new View.OnTouchListener() {

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

            if(event.getAction() == (MotionEvent.ACTION_UP)){
                //Do whatever you want after press
            }
            else{
                //Do whatever you want during press
            }
            return true;
        }
    });

解决方案

From http://developer.android.com/guide/topics/ui/ui-events.html:

onTouch() ... This is called when the user performs an action qualified as a touch event, including a press, a release, or any movement gesture on the screen (within the bounds of the item).

In other words, onTouch is also called for release events. Look at MotionEvent.getAction().

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