How to add a fullscreen subview to the current UIWindow in objective c which will change according to the device orientation?

Question

I want to add a temporary view over the current presented viewcontroller which covers the entire screen.After some research I found that I should add this screen as a subview of current UIWindow.I used the following code.But the view is not covering the entire screen.

`UIWindow* mainWindow = [[UIApplication sharedApplication] keyWindow];
//mainWindow.frame=self.view.frame;
_autoPlayViewBackground.frame=self.view.frame;
_autoPlayViewBackground.hidden=NO;
[mainWindow addSubview:_autoPlayViewBackground];`

This code is giving a window towards a side.Any help would be a great help.

Possible duplicate of [Orientation in a UIView added to a UIWindow](http://stackoverflow.com/questions/2508630/orientation-in-a-uiview-added-to-a-uiwindow) — hfossli, Jan 28 '16 at 08:44

score 2 · Accepted Answer · answered Jan 28 '16 at 06:40

2

How about this?

UIWindow* window = [UIApplication sharedApplication].keyWindow;
if (!window) 
    window = [[UIApplication sharedApplication].windows objectAtIndex:0];
[[[window subviews] objectAtIndex:0] addSubview:myView];

Make sure whatever you want to show will be added in UIView which is myView. This is very important step.

answered Jan 28 '16 at 06:40

Fahim Parkar

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Can i do the last step like `[[[window subviews] objectAtIndex:0] addSubview: _autoPlayViewBackground];` ? – abhimuralidharan Jan 28 '16 at 06:51
@abhi1992 : no, add `_autoPlayViewBackground ` in one UIView and add that UIView to window... ***Read my last statement in answer again*** – Fahim Parkar Jan 28 '16 at 07:35
Thanks for the quick answer.But the actual problem was with the autolayout of the subview. – abhimuralidharan Jan 28 '16 at 13:12

score 2 · Answer 2 · answered Jan 28 '16 at 06:42

2

try this

_autoPlayViewBackground.frame=self.view.frame;

into

_autoPlayViewBackground.view.frame = window.bounds; // or use window .frame
_autoPlayViewBackground.autoresizingMask = UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight;

answered Jan 28 '16 at 06:42

Anbu.Karthik

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score 1 · Answer 3 · answered Jan 28 '16 at 06:44

Please try given method to show AutoPlayBgView in full screen

- (void) showAutoPlayBgViewInFullScreen
{
    UIWindow* window = [[UIApplication sharedApplication] keyWindow];

    // set frame of auto play bg view
    _autoPlayViewBackground.frame = window.frame;

    // add auto play bg view as subview in window
    [window addSubview: _autoPlayViewBackground];
}

Hope this code will help you.. Thanks

score 1 · Answer 4 · answered Jan 28 '16 at 06:56

1

Follow this pattern:

CGRect rect = [[UIScreen mainScreen] bounds];
subView.frame = rect;

[parentView addSubview:subView];

Hope this helps!

answered Jan 28 '16 at 06:56

Dharmesh Siddhpura

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`-[UIScreen mainScreen]` has been deprecated on iOS 16.0. Also if you are considering about supporting Split View or Stage Manager, avoid using `-[UIScreen mainScreen]`. – Jinwoo Kim Sep 30 '22 at 15:49

score 1 · Answer 5 · answered Jan 28 '16 at 08:26

To add a fullscreen subview to the current UIWindow you can do like this.

    UIView *viewBg=[[UIView alloc]initWithFrame:CGRectMake(self.view.frame.origin.x, self.view.frame.origin.y, self.view.frame.size.width, self.view.frame.size.height)];
    [viewBg setBackgroundColor:[UIColor colorWithRed:1/255.f green:1/255.f blue:1/255.f alpha:0.4]];
    [self.view.window addSubview:viewBg];

How to add a fullscreen subview to the current UIWindow in objective c which will change according to the device orientation?

5 Answers5