我用AnimationDrawable是这样的：

I using AnimationDrawable like this:

ImageView rocketImage = (ImageView) layout.findViewById(R.id.animation);
rocketImage.setBackgroundResource(R.drawable.progress_blue_animation);
rocketAnimation = (AnimationDrawable) rocketImage.getBackground();
rocketAnimation.start();

在Android的3.0 / 4.0 / 4.1 / 4.0这code的工作，但没有在Android 2.2的工作。如何解决这个问题呢？

This code work in Android 3.0/4.0/4.1/4.0, but don't work in Android 2.2. How to solve this problem?

推荐答案

据我所知，那是一个的错误 2.1，2.2

As far as i know, thats a Bug in 2.1, 2.2

一个可能的解决方法可以是：

A possible workaround could be:

ImageView rocketImage = (ImageView) layout.findViewById(R.id.animation);
rocketImage.setBackgroundResource(R.drawable.progress_blue_animation);
rocketAnimation = (AnimationDrawable) rocketImage.getBackground();
rocketImage.post(new Runnable(){
    public void run(){
        rocketAnimation.start();
    }
});

（但我没有尝试在目标> 2.1）

(But i didn't try it in Targets >2.1)