iPhone - why the fullscreen does not work but it works with iPad?

Question

In iPad Pro, Air, Mini the same settings are working, but when i use iPhone 7 real device and start the same app, it does not go as full screen like it does with any iPad.

Is there any other settings i might need/missing to make both platform run my app correctly?

- (void)viewDidLoad {
  [super viewDidLoad];
  self.view.backgroundColor = [UIColor blackColor];
    //[self myMethodHere:@"testing/pesting"];
  [self showASimpleExitButtonOnBottomCenter];
}

Answer 1

Follow the image, I had the same issue once for this section. See it, if it helps you.

due Launch Images Source the problem was arised.

Hope it helps you..

Answer 2

Solution to the problem was:

1) remove "Launch image source"

2) Add "Launch Screen file" > new LaunchScreen.storyboard