How to add view in UIWindow?

Question

I wanted to add a view in UIWindow with following code:

 AppDelegate *delegate = (AppDelegate *)[UIApplication sharedApplication].delegate;
 UIWindo         


        

Answer 1

Try with this code:

- (void)viewDidLoad {
    [super viewDidLoad];
    // Do any additional setup after loading the view, typically from a nib.
    UIWindow* window = [UIApplication sharedApplication].keyWindow;
    if (!window) {
        window = [[UIApplication sharedApplication].windows objectAtIndex:0];
    }

    UIView *aView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 100, 100)];
    aView.backgroundColor = [UIColor redColor];
    aView.center = window.center;
    [window insertSubview:aView aboveSubview:self.view];
    [window bringSubviewToFront:aView];
}

Answer 2

i think you are missing this. check once.

[self.window makeKeyAndVisible];