AnimationController.java 文件源码

void endAnimationCollapse(int progress) {
    setTransitionFirstViewZ(valueHandler.getCurrentZFirstView(progress),
            valueHandler.getMinZ(), new LinearOutSlowInInterpolator());

    moveViews(valueHandler.getYMovingViews(progress), valueHandler.getStartYMoveViews(),
            new LinearOutSlowInInterpolator());
    for (int i = 0; i < hiddenViews.size(); i++) {
        startAnimationCollapse(i,
                valueHandler.getCurrentZView(progress, i),
                valueHandler.getMaxHeightHiddenView(i)
                        - valueHandler.getCurrentYViewProgress(progress, i),
                valueHandler.getScaleXView(progress, i),
                valueHandler.getScaleYView(progress, i),
                valueHandler.getMinScaleX(),
                0);
    }
}