Rotating a view within a navigation controller inside of a tab bar controller

[csnplt]

I have an app with 4 tab bar entries, all but one holding a navigation controller, which then contains the stack of individual view controllers. How can I autorotate one of these view controllers?

Whenever I override the shouldRotateTo... method in one of these view controllers, the view controller will still never respond to autorotation events.

How can I make this work, preferably without having to tear apart my app in the process? Thanks in advance.

[Akshay Shah]

Originally Posted by csnplt

I have an app with 4 tab bar entries, all but one holding a navigation controller, which then contains the stack of individual view controllers. How can I autorotate one of these view controllers?

Whenever I override the shouldRotateTo... method in one of these view controllers, the view controller will still never respond to autorotation events.

How can I make this work, preferably without having to tear apart my app in the process? Thanks in advance.

To do this,
Subclass UITabBarController and override the shouldRotateTo... method.
This would do your trick...

Regards,
Akshay Shah.

[csnplt]

Originally Posted by Akshay Shah

To do this,
Subclass UITabBarController and override the shouldRotateTo... method.
This would do your trick...

Regards,
Akshay Shah.

That helped me. Thanks.

Now, however, all of my views within the tab bar autorotate, when I only want one of them to do so. Can I fix this?

[csnplt]

Originally Posted by csnplt

That helped me. Thanks.

Now, however, all of my views within the tab bar autorotate, when I only want one of them to do so. Can I fix this?

Just figured it out. In the subclass of the tab bar controller, in shouldAutorotate..., I check the class of the currently displayed VC. If it is a navigationController, I check its visible view controller's class, and if that is equal to the view controller that I want to autorotate, I allow autorotation. Otherwise, I don't.

Here's the code:

if([self.selectedViewController isKindOfClass:[UINavigationController class]])
	if([[self.selectedViewController visibleViewController] isKindOfClass:[WebsiteViewController class]])
		return (interfaceOrientation == UIInterfaceOrientationPortrait ||interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight);
	
	return (interfaceOrientation == UIInterfaceOrientationPortrait);

[intomo]

Thanks for this solution. However, I get the warning: 'UIViewController' may not respond to '-visibleViewController'

It works nonetheless, but is there a way I can do it without the warning?

[jedilp]

Originally Posted by intomo

Thanks for this solution. However, I get the warning: 'UIViewController' may not respond to '-visibleViewController'

It works nonetheless, but is there a way I can do it without the warning?

You have to cast to UINavigationController.
---
Uruguay Radios

[intomo]

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
	if([(UINavigationController *)self.selectedViewController isKindOfClass:[UINavigationController class]])
		if([[(UINavigationController *)self.selectedViewController visibleViewController] isKindOfClass:[MediaDetailViewController class]])
			return (interfaceOrientation == UIInterfaceOrientationPortrait ||interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight);
	return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

I still get one error saying that MediaDetailViewController is a forward class and may not respond to @interface...

Am I still doing something wrong?
Thanks for the thread.

[intomo]

Ah, this was addressed in this link Objective-C @class vs. #import - Stack Overflow
I was missing an #import

[tuyennguyencanada]

Originally Posted by intomo

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
    // Return YES for supported orientations
	if([(UINavigationController *)self.selectedViewController isKindOfClass:[UINavigationController class]])
		if([[(UINavigationController *)self.selectedViewController visibleViewController] isKindOfClass:[MediaDetailViewController class]])
			return (interfaceOrientation == UIInterfaceOrientationPortrait ||interfaceOrientation == UIInterfaceOrientationLandscapeLeft || interfaceOrientation == UIInterfaceOrientationLandscapeRight);
	return (interfaceOrientation == UIInterfaceOrientationPortrait);
}

I still get one error saying that MediaDetailViewController is a forward class and may not respond to @interface...

Am I still doing something wrong?
Thanks for the thread.

Use self.selectedIndex works for me. I only allow rotating view at index 3 in my app.

Thanks,