UIButton上的标题截断

Question

我已将UIButton设置为导航栏的titleView。然而，无论按钮有多宽，标题似乎都会截断。为什么呢？

UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button setTitle:[[NSDate date] stringWithNSDateFormatterMediumStyle] forState:UIControlStateNormal];
[button setFrame:CGRectMake(0, 0, 150, 40)];
self.navigationItem.titleView = button;

Answer 1

 [button setFrame:CGRectMake(0, 0, 250, 40)];  // are you sure your button is wide enough?