【android bug】setVisibility不起作用

    setVisibility(View.VISIBLE);setVisibility(View.GONE);setVisibility(View.INVISIBLE);都不起作用了，后来发现是设置动画原因。设置之前调用一下clearAnimation()就好了。

    跟了一下源码发现setVisibility()方法会调用这个函数：

    /**
     * Do not invalidate views which are not visible and which are not running an animation. They
     * will not get drawn and they should not set dirty flags as if they will be drawn
     */
    private boolean skipInvalidate() {
        return (mViewFlags & VISIBILITY_MASK) != VISIBLE && mCurrentAnimation == null &&
                (!(mParent instanceof ViewGroup) ||
                        !((ViewGroup) mParent).isViewTransitioning(this));
    }

   这个问题纠结的半天，网上搜了好久，没找到靠谱的答案。碰到bug查查源码是个好习惯。