I have an Objective-C app that runs on the iPad and displays a view controller with a modal presentation style of UIModalPresentationPageSheet:
UINavigationController *editorNavigationController = [[UINavigationController alloc] initWithRootViewController:editorViewController]; editorNavigationController.modalPresentationStyle = UIModalPresentationPageSheet; [navigationController presentViewController:editorNavigationController animated:YES completion:nil]; When this view controller is displayed the buttons in the navigation bar are purple, which I assume has been picked up from the window's tint colour, which is what I want.
Later I need to display another view controller over the top, that fills the whole window:
UINavigationController *previewNavigationController = [[UINavigationController alloc]initWithRootViewController:myPreviewViewController]; [owningViewController presentViewController:previewNavigationController animated:YES completion:nil]; The problem I have is that when myPreviewController is displayed, the buttons in the navigation bar are grey. I've tried reinstating the colour on the new navigation controller:
previewNavigationController.navigationBar.tintColor = [UIColor colorWithRed:123/255.0 green:26/255.0 blue:69/255.0 alpha:1]; but without any joy.
How can I get the buttons to have the correct colour? Can I get the new navigation controller to pick up the window tint colour automatically, or do I have to set it explicitly? Is this something to do with presenting the second navigation controller over the top of one that uses UIModalPresentationPageSheet?
Any help much appreciated! Thanks,
Paul
2 Answers
Answers 1
You can set the navigationBar translucent and transparent. In view Will Appear:
self.navigationController.navigationBar.translucent = NO; Than create a UIView with frame size of navigationBar (CGRectMake(0,0,self.view.frame.size.height,22) and create buttons on it with color you need. I know, thats a crutch but should work)
Answers 2
You can change the appearance of the UIBarButtonItem globally so all UINavigationControllers will share the same design:
[[UIBarButtonItem appearance] setTintColor:[UIColor purpleColor]]; [[UIBarButtonItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIFont fontWithName:@"fontName" size:16.0f],NSFontAttributeName, nil] forState:UIControlStateNormal]; Additionally you could also change the [UINavigationBar appearance]:
//The setTintColor would tint the < Back button in the NavigationBar [[UINavigationBar appearance] setTintColor:[UIColor greenColor]]; [[UINavigationBar appearance] setBarTintColor:[UIColor redColor]]; [[UINavigationBar appearance] setTitleTextAttributes: @{NSForegroundColorAttributeName:[UIColor blueColor]}]; This code can be add it before presenting the UIViewControllers or simply in the AppDelegate.m.
0 comments:
Post a Comment