将uibutton添加到navigationController标题栏iphone

Question

我只是想知道它是否可以在UINavigationControllers标题栏中添加UIButton或图标？

我问,因为我正在寻找一个一致的位置来显示一个"关于"按钮.

Answer 1

您可以通过视图控制器的viewDidLoad方法执行此操作:

- (void)viewDidLoad {
    [super viewDidLoad];

    UIBarButtonItem* infoButton = [[UIBarButtonItem alloc] initWithTitle:@"Info" 
                                                                   style:UIBarButtonItemStylePlain 
                                                                  target:self 
                                                                  action:@selector(infoButtonSelected:)];
    self.navigationItem.rightBarButtonItem = infoButton;
    [infoButton release];
}

在关于按下按钮的示例中,您还应该具有以下方法:

- (void)infoButtonSelected:(id)sender {
        NSLog(@"button tapped");
        // whatever needs to happen when button is tapped
}