AnimationDrawableCallback.java 文件源码

/**
 * Constructor.
 *
 * @param animationDrawable the {@link AnimationDrawable}.
 * @param callback          the client's {@link Callback} implementation. This is usually the {@link View} the has the
 *                          {@link AnimationDrawable} as background.
 */
public AnimationDrawableCallback(AnimationDrawable animationDrawable, Callback callback) {
    mTotalFrames = animationDrawable.getNumberOfFrames();
    mLastFrame = animationDrawable.getFrame(mTotalFrames - 1);
    mWrappedCallback = callback;
}