ios - How to use a UIImagePickerController with UINavigationController -


i've browsed different similar questions here couldn't find useful problem. i'm struggling quite simple can't figure out.

i'm using xcode 4.6.2 , storyboarding. here storyboard: enter image description here

here workflow i'd have:

  • taping on cell in tablevc should push edit document view , offer , done buttons.
  • taping on camera picture should "load" (push/modal?) cameravc subclass of uiimagepickercontroller. i've added custom overlay on top of picker , use custom button take picture. on event perform segue leading previewdocumentview (modally presented) , when "use" button tapped present edit document view.

problem edit document view not have navigation bar if try set property self.navigationbarhidden = no; seems normal me though since i've presented views modally how then?

i tried pushing cameravc tablevc error saying stacking 2 navigationcontrollers prohibited (since cameravc subclass of uiimagepickercontroller subclass of uinavigationcontroller). seems option present cameravc modally don't know how present edit document vc navigation bar.

edit: having navigation bar in cameravc not optimal acceptable if way of doing it.

it appear best solution use unwind segue!

in summary:

1)in tablevc create method such as

- (ibaction)unwindtothisviewcontroller:(uistoryboardsegue *)unwindsegue {     nslog(@"rolled back"); }

2)create unwind segue previewdocumentvc , give unique id such "unwindfrompreview", connecting unwindtothisviewcontroller ibaction. check answer gave in past detailed steps on how achieve (steps 2 , 3).

3)create prepareforsegue method in previewdocumentvc set tablevc bool property, such 

-(void)prepareforsegue:(uistoryboardsegue *)segue sender:(id)sender {     if ([segue.identifier isequaltostring:@"unwindfrompreview"]) {         ((tablevc*)segue.destinationviewcontroller).shouldtransitiontoeditdocvc = yes;     } }

4) in tablevc's viewwillappear method check shouldtransitiontoeditdocvc , if set yes perform segue editdocvc.

i hope helps!


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