How to display a UIView which overlaps the UINavigationBar

Question

In my application, I want to initiate a UIView that overlaps and dims the whole screen including the UINavigationBar, the code is as below:

- (void)showInstruction
{
    self.holedView = [[JMHoledView alloc] initWithFrame:[UIScreen mainScreen].bounds];
    [self.view addSubview:self.holedView];
}

but indeed the self.holedView can only dims the district without the UINavigationBar on the screen. How can I do that?

Answer 1

You can add view as a subview to the window's or navigation controller's view.

[self.navigationController.view addSubview:yourView];

OR

[[[[UIApplication sharedApplication] delegate] window] addSubview:yourView];

Create view's delegate to remove it from superview whenever needed