uinavigationbar

问题 I have a UITableView and a navigation bar in a single screen of my app. I want to navigation bar to be scrolled together with the rest of the table. Note: I am currently implementing a UITableView that is added as a subview of a uiviewcontroller which is in turn part of a navigation controller Can anyone advise me on how to do this? 回答1: In the following answer I'm hiding the real nav bar and replacing it with a fake bar. If you want to use the real nav bar instead, the code is still valid,

问题 I have a UITableView and a navigation bar in a single screen of my app. I want to navigation bar to be scrolled together with the rest of the table. Note: I am currently implementing a UITableView that is added as a subview of a uiviewcontroller which is in turn part of a navigation controller Can anyone advise me on how to do this? 回答1: In the following answer I'm hiding the real nav bar and replacing it with a fake bar. If you want to use the real nav bar instead, the code is still valid,

问题 I'm not having much luck centering vertically the label I'm adding to the TitleView on the UINavigationBar . You can see what it looks like below. This is how I'm adding the label: UILabel *titleLabel = [[UILabel alloc] init]; titleLabel.text = NSLocalizedString(@"activeSessionsTitle",@""); titleLabel.font = [Util SETTING_NEO_HEADER_FONT]; titleLabel.textColor = [UIColor whiteColor]; titleLabel.backgroundColor = [UIColor clearColor]; titleLabel.textAlignment = UITextAlignmentCenter;

问题 I have an application with three buttons (actually UIView 's) laid out horizontally underneath the navigation bar. The three buttons are of substantial enough size (larger than the back button, for example), however they won't respond to touches when the hit is in the top third part, roughly. I'm aware that this area directly underneath the nav bar is sort of 'reserved' for the back button and other UINavigation items having a touch area that expands beyond the navigation bar (by quite a

问题 Please forgive me, there are already a ton of questions on how to add a UIBarButtonItem to a NavigationBar programmatically but I just can't seem to get any of the solutions to work in my situation. Here is the layout of a simple test app I have been working with to learn the UIPageViewController. I have the page view controller working nicely with three unique viewControllers. I would now like to set unique rightBarButtonItems for each of the view controllers. I can easily set a common

问题 Please forgive me, there are already a ton of questions on how to add a UIBarButtonItem to a NavigationBar programmatically but I just can't seem to get any of the solutions to work in my situation. Here is the layout of a simple test app I have been working with to learn the UIPageViewController. I have the page view controller working nicely with three unique viewControllers. I would now like to set unique rightBarButtonItems for each of the view controllers. I can easily set a common

问题 I wanted to subclass UINavigationBar (to set a custom background image & text color) and use that for all the navigation bars in my app. Looking at the API docs for UINavigationController, it looks like navigationBar is read-only: @property(nonatomic, readonly) UINavigationBar *navigationBar Is there a way to actually use a custom UINavigationBar in my UIViewControllers? I know that other apps have done custom navigation bars, like flickr: http://img.skitch.com/20100520

问题 This may be a stupid question, but is it possible to keep a right UIBarButtonItem across multiple views managed by a UINavigationController ? I have a progression of views that often share the same right UIBarButtonItem , but when I push a new view to my UINavigationController , I have to redefine the button every time, even if it hasn't changed. Mostly, the noticeable transitional animation from one view to the next is what bothers me because the exact same button briefly fades out then back

问题 I'm following the second tip from here. In this tip two UIBarButtonItems are put together in a UIToolbar. Finally, the UIToolbar is added to the UINavigationBar. Now to my problems: 1) A white line is on top of the UIToolbar. If I increase the size of the UIToolbar, the gradient is wrong. I'm using the following size for the UIToolbar: UIToolbar *toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 90, 44.01)]; How can I get rid of the white line? See here: The problem is that there is

问题 I need overlay UINavigationBar with UIView like here Is there a way to do this except using custom UIView with button back as nav bar? 回答1: You can add a subview to the base view of the Application [[[UIApplication sharedApplication] keyWindow] addSubview:vMyCustomUIView]; To make sure it is only shown when your view controller is visible you could add and remove it in the viewDidAppear and viewDidDisappear delegate methods. Here is an example that would show a blue box overlapping them. -