Display clear colored ViewController over another ViewController in iOS 7

Question

Prior to iOS 7, according to this popular Stackoverflow question, the way to show a ViewController with a clear background was to do the following in the main ViewController:

    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"SecondViewController"];
    vc.view.backgroundColor = [UIColor clearColor];
    self.modalPresentationStyle = UIModalPresentationCurrentContext;
    [self presentViewController:vc animated:NO completion:nil];

However, as I have recently discovered with iOS 7 (and as commented by others to the main answer), the above solution no longer works, and instead just shows a black model controller. I know that transparency is largely used in iOS 7, so that transparent view controller is very likely possible. I haven't discovered a workaround to this issue yet, and was wondering if anyone knows how to resolve this problem. Thanks!

`modalPresentationStyle` documentation now states: "On iPhone and iPod touch, modal view controllers are always presented full-screen, but on iPad there are several different presentation options". So I assume Apple took this away for iPhone in iOS 7. — Ortwin Gentz, Oct 21 '13 at 20:13
This http://stackoverflow.com/q/27598846/1603234 make me smile, now your turn :) — Hemang, Dec 22 '14 at 08:15

score 8 · Answer 1 · answered Oct 24 '13 at 11:33

8

I just followed the original solution and applied some default and custom settings in Interface Builder, and seems to me it is working.

You can check it here: https://github.com/codedad/SO_IOS_viewcl_on_viewcl

Important section (quite similar to the question's code):

- (IBAction)click:(id)sender {
    NSLog(@"click");


    UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
    UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"TopOverVc"];

    vc.view.backgroundColor = [UIColor clearColor];
    self.modalPresentationStyle = UIModalPresentationCurrentContext;
    [self presentViewController:vc animated:NO completion:nil];
}

Also pls find the IB snaphot:
And the simulator result (after pressing button):

enter image description here

Hope I did not misunderstand sthing in your question ;) Happy coding!

answered Oct 24 '13 at 11:33

nzs

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had a similar problem, I checked your code and works ;) thx for @daspianist for the question too! – Zsolt Normann Oct 24 '13 at 13:46
4

Does not work if the main view controller is embedded within a navigation controller. – vocaro Feb 17 '14 at 02:50
8

i'm getting the black background do u know y?? @codedad – S P Balu Kommuri Feb 05 '15 at 06:25
works only on ipad not in iphone :P – Anil Kothari Aug 29 '15 at 15:15
Not working , it showing black background. – Ajumal Apr 10 '16 at 08:05
This does not work with iOS 9 anymore. – Sebastian Hojas Sep 07 '16 at 12:06

score -2 · Answer 2 · answered Oct 24 '13 at 12:47

-2

For iOS 7,subclass SecondViewController and try setting the view background color in viewDidLoad of SecondViewController

self.view.backgroundColor = [UIColor clearColor];

answered Oct 24 '13 at 12:47

Meet

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score -3 · Answer 3 · answered Oct 21 '13 at 04:59

-3

Why not u r using this

 UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"MainStoryboard" bundle:nil];
    UIViewController *vc = [storyboard instantiateViewControllerWithIdentifier:@"SecondViewController"];

    self.modalPresentationStyle = UIModalPresentationCurrentContext;
    [self presentViewController:vc animated:NO completion:nil];

 vc.view.backgroundColor = [UIColor clearColor];

Try to change BG Color of View after view is loaded. in ur sol u r first changing View and the presenting. the View Life cycle not going on this manner

answered Oct 21 '13 at 04:59

Satish Azad

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Thanks for the solution - however this didn't work either.. I am still getting the all black background upon calling the VC. – daspianist Oct 22 '13 at 21:13
getting Black background – Girijesh Kumar May 05 '15 at 12:04

Display clear colored ViewController over another ViewController in iOS 7

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