我如何自定义导航返回按钮在iOS 7及以上没有标题?(即只使用箭头)

self.navigationItem.leftBarButtonItem = self.editButtonItem;

我只是想知道它们是否有self。backbuttonitem;

OR

像这样的东西?

self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc]
                   initWithBarButtonSystemItem:UIBarButtonSystemItemBACK 
                   target:self action:@selector(back)];

当前回答

这是有效的,但它会删除前一项的标题,即使你弹出回到它:

self.navigationController.navigationBar.topItem.title = @"";

只需要在推送视图控制器的viewDidLoad上设置这个属性。

其他回答

如果你设置了导航栏的tintColor,添加一个没有标题的自定义后退按钮图像,该图像的tintColor将反映图像的颜色。请点击苹果文档链接。

https://developer.apple.com/library/content/documentation/UserExperience/Conceptual/UIKitUICatalog/index.html#//apple_ref/doc/uid/TP40012857-UIView-SW7

UINavigationItem *navItem = [[UINavigationItem alloc] init];
   navBar.tintColor = self.tintColor;

   UIImage *myImage = [UIImage imageNamed:@"left_arrow.png"];
     myImage = [myImage              imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate];

     UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithImage:myImage style:UIBarButtonItemStylePlain target:self action:@selector(cancelButtonFunction:)];
     navItem.leftBarButtonItem = leftButton;

    navBar.items = @[ navItem ];

你不能以你想要的方式访问导航backButtonItem,你需要创建自己的返回按钮,如下所示:

- (void)loadView
{
    [super loadView];
    UIButton *backButton = [[UIButton alloc] initWithFrame: CGRectMake(0, 0, 44.0f, 30.0f)];
    [backButton setImage:[UIImage imageNamed:@"back.png"]  forState:UIControlStateNormal];
    [backButton addTarget:self action:@selector(popVC) forControlEvents:UIControlEventTouchUpInside];
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
}

当然了:

- (void) popVC{
  [self.navigationController popViewControllerAnimated:YES];
}

添加新的UIBarButtonItem到左边的UINavigationItem 改变UIBarButtonItem的使用方式 现在,点击UINavigationItem,并从outlets滑动barBackButtonItem到左UIBarButtonItem

设置返回按钮项目标题为空字符串。

[自我navigationController navigationBar。backItem setTitle: @“”);

如果你有两个ViewController(FirstVC, seconddvc)嵌入在导航控制器中,你想在seconddvc中只有后退箭头。

你可以试试这个 在FirstVC的ViewDidLoad中

override func viewDidLoad() {
    super.viewDidLoad()
    self.navigationItem.backBarButtonItem = UIBarButtonItem(title: "", style: .Plain, target: nil, action: nil)
}

然后当你推到seconddvc,你会看到只有后退箭头