- (NSUInteger)application:(UIApplication *)application supportedInterfaceOrientationsForWindow:(UIWindow *)window {
    if ([NSStringFromClass([[[window subviews]lastObject] class]) isEqualToString:@"UITransitionView"]) {
        return UIInterfaceOrientationMaskAll;
        //優酷 土豆  樂視  已經測試可以
    }
    return UIInterfaceOrientationMaskPortrait;
}