iphone - UINavigationBar 标题飞出界

Question

当我将视图控制器推送到占屏幕一半的导航控制器时，由于某种原因，以前的视图控制器标题超出了范围。这仅发生在 iOS 5 而不是 iOS 6 中。知道为什么会发生这种情况或我们如何解决它吗？

Answer 1

您可以像这样设置导航栏标题：-

 - (void)viewDidLoad
 {
       [super viewDidLoad];
      // Do any additional setup after loading the view, typically from a nib.
       self.navigationItem.leftBarButtonItem = self.editButtonItem;

       UIBarButtonItem *addButton = [[[UIBarButtonItem alloc]   initWithBarButtonSystemItem:UIBarButtonSystemItemAdd target:self action:@selector(insertNewObject:)] autorelease];
       self.navigationItem.rightBarButtonItem = addButton;

       UILabel *label = [[UILabel alloc]initWithFrame:CGRectMake(0.0, 0.0, 320.0, 44.0)];
       [label setBackgroundColor:[UIColor clearColor]];
       [label setNumberOfLines:0];
       [label setTextColor:[UIColor whiteColor]];
       [label setTextAlignment:UITextAlignmentCenter];
       [label setFont:[UIFont systemFontOfSize:12]];
       NSString    *str =@"1234567890 1234567890 1234567890 1234567890 1234567890 123456";
       [label setText:str];
       self.navigationItem.titleView = label;

 }