ios7导航栏：使用自定义按钮返回动画时出现3个奇怪的点

6 回答

• 9

  如果你设置

  self.navigationItem.hidesBackButton = YES
  

  iOS有时会在其通用后退按钮内生成三个点 . 我通过将通用后退按钮上的文本设置为空来解决了问题，然后创建了我的自定义按钮 . 这是我设置空文本的方式：

  UIBarButtonItem *backButton2 = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];
  self.navigationItem.backBarButtonItem = backButton2;
  

  然后我创建了我的自定义UIButton并将它放在我想要的地方：

  UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(5, 70/2-22, 44, 44)];
  [backButton setImage:[[UIImage imageNamed:@"back_button.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate] forState:UIControlStateNormal];
  backButton.tintColor = tintColor;
  backButton.imageEdgeInsets = UIEdgeInsetsMake(-2, -15, 0, 0);
  
  
  [backButton addTarget:self action:@selector(popCurrentViewController) forControlEvents:UIControlEventTouchUpInside];
  

  回复于 2024-05-03T07:50:36+08:00
• 2

  无需隐藏 backButton ，您只需添加自定义后退按钮，它将隐藏默认按钮 .

  - (void) viewDidLoad
  {
      UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:self action:@selector(handleBack:)];
      self.navigationItem.leftBarButtonItem = backButton;
  }
  
  - (void) handleBack:(id)sender
  {
      [self.navigationController popViewControllerAnimated:YES];
  }
  

  回复于 2024-05-03T07:50:36+08:00
• 2

  只需在viewWillAppear方法中添加以下这些行：

  迅速：

  self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil) self.navigationItem.leftBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)

  目标C：

  self.navigationItem.backBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil]; self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithTitle:@"" style:UIBarButtonItemStylePlain target:nil action:nil];

  就这样

  回复于 2024-05-03T07:50:36+08:00
• 0

  navigationItem.backBarButtonItem = nil

  回复于 2024-05-03T07:50:36+08:00
• 1

  更简单的快速版本：

  let emptyBackButton = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)
  navigationItem.hidesBackButton = true
  navigationItem.backBarButtonItem = emptyBackButton
  

  回复于 2024-05-03T07:50:36+08:00
• 0

  您不需要编写任何代码只需遵循4个简单步骤即可完成 .

  • 选择您的Main.storyboard

  • 在导航控制器中选择导航栏

  • 选择属性检查器

  • 清除色调

  

  回复于 2024-05-03T07:50:36+08:00