Android:如何停止在 ImageView 上应用的无限动画? [英] Android: How can I stop an infinite animation applied on an ImageView?

问题描述

我有一个 ImageView，我在上面应用了旋转动画.由于我希望旋转持续进行，因此我在rotate.xml 中将repeatCount 设为无限:

I have an ImageView on which I have applied a rotate animation. Since I want the rotation to go on continuously, I gave the repeatCount as infinite in my rotate.xml:

android:repeatCount="infinite"

在 onCreate() 中，我加载动画并启动它.

In onCreate(), I load the animation and start it.

Animation myAnim    = AnimationUtils.loadAnimation(this, R.anim.rotate);
objectImg.startAnimation(myAnim); 

按下按钮时，旋转必须停止.因此，在我的 onClick() 中，我调用了 clearAnimation().

When a button is pressed, the rotation must stop. Hence in my onClick(), I called clearAnimation().

objectImg.startAnimation(myAnim); 

我的简单问题是停止动画是否正确.我假设 clearAnimation() 对应于 loadAnimation()，但没有 stopAnimation() 对应于 startAnimation().

My simple question is whether stopping the animation is the right thing to do. I assume clearAnimation() corresponds to loadAnimation(), but there is no stopAnimation() that corresponds to startAnimation().

推荐答案

你也可以调用 anim.cancel(); 但你也应该调用 anim.reset();代码> 紧随其后.然后当你想再次启动它时，只需在视图上调用 startAnimation 即可.

You can also call anim.cancel(); but you should also call anim.reset(); immediately after it. Then when you want to start it again, just call startAnimation on the view.

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