2dx 模态出uiviewcontroller

#pragma mark 获取rootviewcontroller

-(UIViewController*) getRootViewController {

    return [UIApplication

            sharedApplication].keyWindow.rootViewController;

}

#pragma mark 模态

-(void)presentViewController:(UIViewController*)vc {

    UIViewController* rootVC = [self getRootViewController];

    [rootVC presentViewController:vc animated:YES

                       completion:nil];

}