objective-c - 如何更改 leftBarbuttonItem 标题？

Question

我想更改 leftBarButton 标题。这个我试过了

UIBarButtonItem *newBackButton =
[[UIBarButtonItem alloc] initWithTitle:@"Back"
                                 style:UIBarButtonItemStyleBordered
                                target:nil
                                action:nil];
[[self navigationItem] setLeftBarButtonItem:newBackButton];

但它带来了像

这样的变化

但是我想要这样

这怎么可能？

Answer 1

可能对你有帮助

      UIBarButtonItem *backBarButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleDone target:self action:@selector(backAction:)];
      self.navigationItem.leftBarButtonItem = backBarButton;