uibarbuttonitem

问题 iOS 7.0 and up. In AppDelegate.m, I'm setting my global tintColor: self.window.tintColor = myGlobalTintColor; . In my table view controller where I want a red trash can button in the navigation bar while editing the table view cells, I have this: - (void)setEditing:(BOOL)editing animated:(BOOL)animate { [super setEditing:editing animated:animate]; if (editing) { // Start editing self.deleteBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemTrash target

问题 I currently have a button called continueButton that has been assigned to a UIBarButtonItem button in a Storyboard file. I've declared the button as such: - (IBAction)continueButton; When the view loads, I want the button to disable itself, so that there can be no user input unless a command is called that re-enables user input for the button. How would I go about doing this? I'm trying to use the function [continueButton setEnabled:YES]; to disable/enable the button programmatically, but it

问题 I want to show completely custom buttons in UINavigationController's UIToolbar, and support portrait and landscape . Currently I have implemented a RotatingButton (a UIView subclass) class, which contains one UIButton that fills the whole RotatingButton frame. A RotatingButton also contains two images, for portrait and landscape orientations, and the heights of these images differ. Then this RotatingButton gets wrapped into UIBarButtonItem as a custom view. Currently, in RotatingButton's

问题 Here is my code..I am unable to add a button in my navigation controller. - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. UIViewController *viewController1, *viewController2, *viewController3,*viewController4; viewController1 = [[ViewController alloc] initWithNibName:@"ViewController" bundle

问题 I'm attempting to set an attributed string on my back bar button item. This is my first attempt at attributed strings. Here is the code: self.navigationItem.hidesBackButton = true let barButtonBackStr = "< Back" var attributedBarButtonBackStr = NSMutableAttributedString(string: barButtonBackStr as String) attributedBarButtonBackStr.addAttribute(NSFontAttributeName, value: UIFont( name: "AmericanTypewriter-Bold", size: 18.0)!, range: NSRange( location:0, length:1)) let newBackButton =

问题 How can I draw a button with quartz that has exactly the same style as a UIBarButtonItem. The button should be able to show different colors. I downloaded the Three20 project, but this project is really complex, you'd need a lot of time to overlook the whole framework. I just want to draw a custom UIBarButtonItem. Thanks for help. 回答1: If you are using the Three20 library, I guess TTButton's "toolbarButton" style is what you want. TTButton is a sub-class of UIButton, but it allows you to

问题 I set up UIBarButtonItem title font through appearance proxy in AppDelegate: [[UIBarButtonItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys: [UIFont fontWithName:@"Segoe Print" size: 14.0], UITextAttributeFont, DEF_TITLE_COLOR,UITextAttributeTextColor, [UIColor colorWithRed:100/255 green:128/255 blue:43/255 alpha:0.4], UITextAttributeTextShadowColor, [NSValue valueWithUIOffset:UIOffsetMake(0, 1)], UITextAttributeTextShadowOffset, nil] forState

问题 When you tap on a UIBarButtonItem in a UIToolbar , there is a white glow effect. Is there a possibility to fire an event to show this effect? I don't want to press the button. Only the effect should be displayed. I want to visualize to the user, that there is new content behind this button. Thanks for your help! 回答1: The following method assumes you are using the toolbarItems property of a navigation controller and that the button you want to highlight is the last item in that array. You can

问题 Problem : I would like to custom the navigation back button title in the popped view controller like Whatsapp ( < Chats (2) / < Chats (3) ). However to assign a new backBarButtonItem in the popped view controller will disable the swipe back gesture, if you use self.navigationController.interactivePopGestureRecognizer.delegate = self; to keep the gesture work, it will give you more troublessss (too many bugssss). 回答1: You have to set the self.navigationItem.backBarButtonItem property on the

问题 I want to add many UIBarButtonItem 's to a UINavigationbar , not just right and left buttons: logoButton = [[UIBarButtonItem alloc] initWithTitle:@"A Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonAClicked:)]; logoButton2 = [[UIBarButtonItem alloc] initWithTitle:@"B Button" style:UIBarButtonItemStyleBordered target:self action:@selector(logoButtonBClicked:)]; logoButto3 = [[UIBarButtonItem alloc] initWithTitle:@"C Button" style:UIBarButtonItemStyleBordered