Android default throbber animation (Froyo 2.2)

I'm looking for the location of the Android Froyo (2.2) default throbber animation resource. (In the progress dialog displayed as a animated wheel spinning).

What is the type of animation? (gif, png, avi?)

And how to get it开发者_StackOverflow中文版 as a separate file (or images) to be able to adjust.

What is the type of animation? (gif, png, avi?)

It is a plain PNG file. Animation is probably handled via RotateAnimation.

And how to get it as a separate file

It is in $ANDROID_HOME/platforms/$VERSION/data/res, where $ANDROID_HOME is wherever you installed your SDK and $VERSION is some Android API level (e.g., android-8). In there, you will find all of the standard resources. You will find them as spinner_black_*.png.