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POUITabBarController and UIViewController Transition
 

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  1. POUITabBarController and UIViewController Transition
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    <p>I have a UITabBarController that loads 2 UIViewControllers: a map and a table. When a tabBarItem is clicked, I catch the event and set some properties on the destination view:</p> <pre><code>- (void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { if([viewController.tabBarItem.title isEqualToString:@"Map"]) { MapViewController *MVC = [tabBarController.childViewControllers objectAtIndex: viewController.tabBarController.selectedIndex]; MVC.billboards = self.billboards; MVC.rangeMaxWidth = self.rangeMaxWidth; MVC.rangeMaxHeight = self.rangeMaxHeight; MVC.APIRoot = self.APIRoot; } } </code></pre> <p>Now the code above works great; however, when I try to do the same thing for my table view I get a cryptic error. Here is the full code:</p> <pre><code>- (void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { if([viewController.tabBarItem.title isEqualToString:@"Map"]) { MapViewController *MVC = [tabBarController.childViewControllers objectAtIndex: viewController.tabBarController.selectedIndex]; MVC.billboards = self.billboards; MVC.rangeMaxWidth = self.rangeMaxWidth; MVC.rangeMaxHeight = self.rangeMaxHeight; MVC.APIRoot = self.APIRoot; } else if ([viewController.tabBarItem.title isEqualToString:@"Manage"]) { ManageBillboardsController *MBC = [tabBarController.childViewControllers objectAtIndex: viewController.tabBarController.selectedIndex]; MBC.aNumber = [[NSNumber alloc] initWithInt:3]; } } </code></pre> <p>-[UINavigationController setANumber:]: unrecognized selector sent to instance 0x9e91400 2013-06-27 15:09:18.624 Billboard[3269:c07] <em>*</em> Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[UINavigationController setANumber:]: unrecognized selector sent to instance 0x9e91400'</p> <p>I think I've double checked everything and everything seems to be the same for both views. So I don't understand why this works for the map view but not for the table.</p> <p>Thanks in advance.</p> <p><strong>* SOLUTION *</strong></p> <pre><code>- (void) tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController { if([viewController.tabBarItem.title isEqualToString:@"Map"]) { MapViewController *MVC = [tabBarController.childViewControllers objectAtIndex: viewController.tabBarController.selectedIndex]; MVC.billboards = self.billboards; MVC.rangeMaxWidth = self.rangeMaxWidth; MVC.rangeMaxHeight = self.rangeMaxHeight; MVC.APIRoot = self.APIRoot; } else if ([viewController.tabBarItem.title isEqualToString:@"Manage"]) { UINavigationController *NC = [tabBarController.childViewControllers objectAtIndex: viewController.tabBarController.selectedIndex]; NSArray *controllers = [NC childViewControllers]; for(id item in controllers){ ManageBillboardsController *MBC = item; MBC.aNumber = [[NSNumber alloc] initWithInt:3]; } } } </code></pre>
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    1. PO
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      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USPrzemek Lach
    1. USPrzemek Lach
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    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
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      1. PTAnswer
    1. This table or related slice is empty.
    1. This table or related slice is empty.
 

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