self.presentingViewController presentViewController not working

Question

I am new to iOS,

I have initial viewController in storyboard,

and on click of button i am doing presentingViewController with presentViewController but it doesn't work.

Here is my code i have tried...

- (IBAction)btnClicked:(id)sender {
   [self.presentingViewController presentViewController:LSUniversalVariable.callViewController animated:YES completion:nil];
}

Where i am making mistake?

please help and thanks in advance!

Doesn't work as in nothing happened? – Ken Toh Dec 02 '16 at 06:26 — Ken Toh, Dec 02 '16 at 06:26
yes nothing happnes.. – Apple developer Dec 02 '16 at 06:43 — Apple developer, Dec 02 '16 at 06:43

score 0 · Answer 1 · answered Dec 02 '16 at 06:25

0

You need to change you presenting viewcontroller line .

   [self presentViewController:LSUniversalVariable.callViewController animated:YES completion:nil];

answered Dec 02 '16 at 06:25

KKRocks

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It shows this when i try your code `Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present a nil modal view controller on target .` – Apple developer Dec 02 '16 at 06:45
did you check LSUniversalVariable.callViewController is nil or no ? – KKRocks Dec 02 '16 at 06:49
Make sure that your LSUniversalVariable.callViewController is not nil. – KKRocks Dec 02 '16 at 06:51
using NSLog before this line . – KKRocks Dec 02 '16 at 06:52
add this condition .if (LSUniversalVariable.callViewController) { // [self presentViewController:LSUniversalVariable.callViewController animated:YES completion:nil]; } – KKRocks Dec 02 '16 at 06:54
then you need to set first viewcontroller's instance to LSUniversalVariable.callViewController . – KKRocks Dec 02 '16 at 06:58
can you help me? how wil i get `viewcontroller's instance`? – Apple developer Dec 02 '16 at 07:00
explain here what you want to do ? – KKRocks Dec 02 '16 at 07:03
are you use storyboard or xib ? – KKRocks Dec 02 '16 at 07:04
I am using storyboard... i am integrating a library, `LSUniversalVariable` is a object of library and `callViewController` is one of the controller of library which opens up camera. – Apple developer Dec 02 '16 at 07:08
is it third party library ? – KKRocks Dec 02 '16 at 07:12
yes, but it working libraray only problem is i am not able to open camera which should happen after writing above line. – Apple developer Dec 02 '16 at 07:23
if your controller object nil then you cant able to open that view . – KKRocks Dec 02 '16 at 07:25

self.presentingViewController presentViewController not working

1 Answers1