You should try it like: var barButtonItem = self.navigationItem.rightBarButtonItem! var buttonItemView = barButtonItem.valueForKey(“view”) var buttonItemSize = buttonItemView?.size Edit (Swift 3): var barButtonItem = self.navigationItem.rightBarButtonItem! let buttonItemView = barButtonItem.value(forKey: “view”) as? UIView var buttonItemSize = buttonItemView?.size
EDIT: These problems appear to be fixed as of iOS 7.1 / Xcode 5.1.1. (Possibly earlier, as I haven’t been able to test all versions. Definitely after iOS 7.0, since I tested that one.) When you create a popover segue from a UIBarButtonItem, the segue makes sure that tapping the popover again hides the popover … Read more
I found this solution preferable to those listed here: Tint UIButton and UIBarButtonItem. Unlike the accepted answer, it allows you to change the color of UIBarButtonItems independent of the UINavigationBar. In case the link goes down in the future, the gist of it is that you create a tinted UISegmentedControl (with UISegmentedControlStyleBar) with one segment, … Read more
What about this: UIBarButtonItem *item = /*…*/; UIView *view = [item valueForKey:@”view”]; CGFloat width = view? [view frame].size.width : (CGFloat)0.0;
Another way to do that and avoiding warnings is as follows: [[UIApplication sharedApplication] sendAction:barButtonItem.action to:barButtonItem.target from:nil forEvent:nil];
The best way to do this is to create a button, set its background image, and set its action. Then a UIBarButtonItem can be created using this button as the custom view. Here’s my example code: UIButton *settingsView = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 61, 30)]; [settingsView addTarget:self action:@selector(SettingsClicked) forControlEvents:UIControlEventTouchUpInside]; [settingsView setBackgroundImage:[UIImage imageNamed:@”settings”] forState:UIControlStateNormal]; UIBarButtonItem *settingsButton … Read more
This is a known issue with Xcode 6: Unwind segue actions declared in Swift classes are not recognized by Interface Builder In order to get around it you need to: Change class MyViewController to @objc(MyViewController) class MyViewController Create an Objective-C header file with a category for MyViewController that redeclares the segue action. @interface MyViewController (Workaround) … Read more
Unfortunately you can’t do that. The view hierarchy within the UINavigationBar is private so you can’t manipulate it without iterating over the subviews and going all hacky with it. This probably isn’t a good idea. Out of curiosity I looked at the Messages app in iOS 10 using the view debugger because they obviously do … Read more
I searched for a solution to this problem for months and finally found a way to customize the navigationbar of a QLPreviewController. Previously I was also using UIWebView to display documents as I’m not allowed to display the iOS-share button for certain confidential documents within my app and this is what the QLPreviewController does. However … Read more
Works until iOS11! You can use negative flexible spaces and rightBarButtonItems property instead of rightBarButtonItem: UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace target:nil action:nil]; spacer.width = -10; // for example shift right bar button to the right self.navigationItem.rightBarButtonItems = @[spacer, yourBarButton];