下面列出了android.support.v4.view.ViewCompat#hasOverlappingRendering ( ) 实例代码，或者点击链接到github查看源代码，也可以在右侧发表评论。
static boolean shouldRunOnHWLayer(View v, Animation anim) {
return VERSION.SDK_INT >= 19 && ViewCompat.getLayerType(v) == 0 && ViewCompat.hasOverlappingRendering(v) && modifiesAlpha(anim);
}
static boolean shouldRunOnHWLayer(View v, Animation anim) {
return v.getLayerType() == View.LAYER_TYPE_NONE
&& ViewCompat.hasOverlappingRendering(v)
&& modifiesAlpha(anim);
}