Android setAnimation 直接触发

Question

您好，我正在使用以下内容:

        final ImageView ivLoading3 = new ImageView(context);
        ivLoading3.setBackgroundResource(com.example.testtabswipe.R.drawable.dot_loading);
        ivLoading3.setLayoutParams(layoutParams);
        final TranslateAnimation mAnimation3 = new LoadingTranslateAnimation(
                TranslateAnimation.ABSOLUTE, 0f,
                TranslateAnimation.ABSOLUTE, 0f,
                TranslateAnimation.RELATIVE_TO_PARENT, 0f,
                TranslateAnimation.RELATIVE_TO_PARENT, 0.2f);
        ((LinearLayout) view).addView(ivLoading3);
        ivLoading3.setAnimation(mAnimation3); // <--- firing off directly

我希望它不要直接触发。有什么我想念的吗？

据我了解，startAnimation 用于直接触发，而 setAnimation 只是设置它但不触发它。我在这里误解了什么？

来自 http://developer.android.com/reference/android/view/View.html#setAnimation(android.view.animation.Animation) 的官方文档:

public void setAnimation (Animation animation) Sets the next animation to play for this view. If you want the animation to play immediately, use startAnimation(android.view.animation.Animation) instead. This method provides allows fine-grained control over the start time and invalidation, but you must make sure that 1) the animation has a start time set, and 2) the view's parent (which controls animations on its children) will be invalidated when the animation is supposed to start.

Answer 1

setAnimation

Sets the next animation to play for this view.But view animation doesnot start yet.

startAnimation

If you want the animation to play immediately, use startAnimation.This method provides allows fine-grained control over the start timeand invalidation, but you must make sure that

1. the animation has a start time set,

2. the view will be invalidated when the animation is supposed tostart.

来自 here