Pass variable to View Controller Embedded in Navigation Controller in Objective-C
I have embedded a destination viewcontroller in a navigation controller and am now unable to pass it a variable.
My code is:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
//THis is the navigation controller
UIViewController *destVC = [storyboard instantiateViewControllerWithIdentifier:@"myNav"];
//This is the view controller embedded in the nav
IDNowVC* myVC = [storyboard instantiateViewControllerWithIdentifier:@"myVC"];
myVC.sender = @1;//for contacts
[self presentViewController:destVC animated:YES completion:nil];
After the launch of the VC, sender property is nil. It is not getting the value @1.
What am I missing?
Thanks for any suggestions.
ios uiviewcontroller parameter-passing
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
add a comment |
I have embedded a destination viewcontroller in a navigation controller and am now unable to pass it a variable.
My code is:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
//THis is the navigation controller
UIViewController *destVC = [storyboard instantiateViewControllerWithIdentifier:@"myNav"];
//This is the view controller embedded in the nav
IDNowVC* myVC = [storyboard instantiateViewControllerWithIdentifier:@"myVC"];
myVC.sender = @1;//for contacts
[self presentViewController:destVC animated:YES completion:nil];
After the launch of the VC, sender property is nil. It is not getting the value @1.
What am I missing?
Thanks for any suggestions.
ios uiviewcontroller parameter-passing
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
add a comment |
I have embedded a destination viewcontroller in a navigation controller and am now unable to pass it a variable.
My code is:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
//THis is the navigation controller
UIViewController *destVC = [storyboard instantiateViewControllerWithIdentifier:@"myNav"];
//This is the view controller embedded in the nav
IDNowVC* myVC = [storyboard instantiateViewControllerWithIdentifier:@"myVC"];
myVC.sender = @1;//for contacts
[self presentViewController:destVC animated:YES completion:nil];
After the launch of the VC, sender property is nil. It is not getting the value @1.
What am I missing?
Thanks for any suggestions.
ios uiviewcontroller parameter-passing
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
I have embedded a destination viewcontroller in a navigation controller and am now unable to pass it a variable.
My code is:
UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"Main" bundle:nil];
//THis is the navigation controller
UIViewController *destVC = [storyboard instantiateViewControllerWithIdentifier:@"myNav"];
//This is the view controller embedded in the nav
IDNowVC* myVC = [storyboard instantiateViewControllerWithIdentifier:@"myVC"];
myVC.sender = @1;//for contacts
[self presentViewController:destVC animated:YES completion:nil];
After the launch of the VC, sender property is nil. It is not getting the value @1.
What am I missing?
Thanks for any suggestions.
ios uiviewcontroller parameter-passing
ios uiviewcontroller parameter-passing
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
asked Nov 24 '18 at 18:06
user1904273user1904273
1,63882965
1,63882965
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
In your code you have a comment that says:
//This is the view controller embedded in the nav
However, the view controller below that comment is not the one embedded in your navigation controller. It's a completely new controller that is created at that line and disposed of at the end of the function.
You need something more like this:
UINavigationController *destVC = (UINavigationController *)[storyboard instantiateViewControllerWithIdentifier:@"myNav"];
IDNowVC* myVC = destVC.childViewControllers[0];
myVC.sender = @1;
There might be some syntax issues with the above...
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
add a comment |
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1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
In your code you have a comment that says:
//This is the view controller embedded in the nav
However, the view controller below that comment is not the one embedded in your navigation controller. It's a completely new controller that is created at that line and disposed of at the end of the function.
You need something more like this:
UINavigationController *destVC = (UINavigationController *)[storyboard instantiateViewControllerWithIdentifier:@"myNav"];
IDNowVC* myVC = destVC.childViewControllers[0];
myVC.sender = @1;
There might be some syntax issues with the above...
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
add a comment |
In your code you have a comment that says:
//This is the view controller embedded in the nav
However, the view controller below that comment is not the one embedded in your navigation controller. It's a completely new controller that is created at that line and disposed of at the end of the function.
You need something more like this:
UINavigationController *destVC = (UINavigationController *)[storyboard instantiateViewControllerWithIdentifier:@"myNav"];
IDNowVC* myVC = destVC.childViewControllers[0];
myVC.sender = @1;
There might be some syntax issues with the above...
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
add a comment |
In your code you have a comment that says:
//This is the view controller embedded in the nav
However, the view controller below that comment is not the one embedded in your navigation controller. It's a completely new controller that is created at that line and disposed of at the end of the function.
You need something more like this:
UINavigationController *destVC = (UINavigationController *)[storyboard instantiateViewControllerWithIdentifier:@"myNav"];
IDNowVC* myVC = destVC.childViewControllers[0];
myVC.sender = @1;
There might be some syntax issues with the above...
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
In your code you have a comment that says:
//This is the view controller embedded in the nav
However, the view controller below that comment is not the one embedded in your navigation controller. It's a completely new controller that is created at that line and disposed of at the end of the function.
You need something more like this:
UINavigationController *destVC = (UINavigationController *)[storyboard instantiateViewControllerWithIdentifier:@"myNav"];
IDNowVC* myVC = destVC.childViewControllers[0];
myVC.sender = @1;
There might be some syntax issues with the above...
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
answered Nov 24 '18 at 18:15
Daniel T.Daniel T.
13.9k22734
13.9k22734
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
add a comment |
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
Yes. That was it. I guess you could also instantiate myVC from storyboard, then get the nav from myNav using [[UINavigationController alloc] initWithRootViewController: myVC ];and launch myNav. You just can't instantiate both from storyboard and expect them to be connected.
– user1904273
Nov 24 '18 at 19:42
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
No. If you instantiate myVC from the storyboard, then it won't be connected to a UINavigationController.
– Daniel T.
Nov 24 '18 at 20:36
add a comment |
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