Question

我在这里使用默认的Bar Button Item editButtonItem：

@property (nonatomic, assign) BOOL isEditing;

- (void)viewDidLoad {
  [super viewDidLoad];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
[self setupInterface];
}

- (void)setupInterface {
    if (self.dataElement) {
        self.isEditing = NO;
        self.nameTextField.text = self.dataElement.name;;
    } else {
      self.isEditing = YES;
      self.deleteButton.hidden = YES;
    }
  }

- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
  editing = self.isEditing;
  [super setEditing:editing animated:YES];
  if (editing) {
    [self saveAction];
    [self.navigationController popViewControllerAnimated:YES];
  } else {
    self.isEditing = !self.isEditing;
  }
}

- (void)setIsEditing:(BOOL)isEditing {
  _isEditing = isEditing;

    if (isEditing) {
      self.deleteButton.hidden = NO;
      self.nameTextField.userInteractionEnabled = YES;
    } else {
      self.deleteButton.hidden = YES;
      self.nameTextField.userInteractionEnabled = NO;
    }
}

但是，它不会从“编辑”更改为“完成”按钮的标题。我知道，它可以自动更改，并且不想分配它： self.editButtonItem.title = @＆＃34;完成＆＃34;;

Answer 1

将Select * from Course a join CourseProp b on a.courseId = b.courseId and b.prop1="demo"按钮更改为完成按钮使用此功能，

navigationItem

将[self.navigationItem.rightBarButtonItem setStyle:UIBarButtonItemStyleDone];按钮更改为修改按钮，请使用此

navigationItem

如果您已通过IB Storyboard添加了按钮，请确保设置标识符。然后在代码中添加以下内容：

[self.navigationItem.rightBarButtonItem setStyle:UIBarButtonItemStyleBordered];

Answer 2

试一下

- (void)viewDidLoad
{
[super viewDidLoad];
 UIBarButtonItem *leftLoginBar=[[UIBarButtonItem alloc]initWithTitle:@"Done" style:UIBarButtonItemStylePlain target:self action:@selector(myProfileClickOnDashboard)];
leftLoginBar.tintColor=White;
self.tabBarController.navigationItem.leftBarButtonItem = leftLoginBar;
}



-(void)myProfileClickOnDashboard
{
UIBarButtonItem *rightLoginBar=[[UIBarButtonItem alloc]initWithTitle:@"Edit" style:UIBarButtonItemStylePlain target:self action:@selector(filterClickOnDashboard)];
rightLoginBar.tintColor=White;
self.tabBarController.navigationItem.leftBarButtonItem = rightLoginBar;

//do ... when your bar button is Edit

}
-(void)filterClickOnDashboard
{
UIBarButtonItem *leftLoginBar=[[UIBarButtonItem alloc]initWithTitle:@"Done" style:UIBarButtonItemStylePlain target:self action:@selector(myProfileClickOnDashboard)];
leftLoginBar.tintColor=White;
self.tabBarController.navigationItem.leftBarButtonItem = leftLoginBar;

    //do... when bar button is Done.
}

Answer 3

找到解决方案：我们只能使用 - （void）setEditing：（BOOL）编辑动画：（BOOL）动画方法。

对某人有用：

- (void)viewDidLoad {
  [super viewDidLoad];
self.navigationItem.rightBarButtonItem = self.editButtonItem;
[self setupInterface];
}

- (void)setupInterface {

    if (self.dataElement) {
        self.nameTextField.text = self.dataElement.name;
    }
}

- (void)setEditing:(BOOL)editing animated:(BOOL)animated {
  [super setEditing:editing animated:YES];

    if (editing) {
        self.deleteButton.hidden = (self.dataElement == nil);
        self.addImageButton.hidden = NO;
        self.nameTextField.userInteractionEnabled = YES;

    } else {
        self.deleteButton.hidden = YES;
        self.addImageButton.hidden = YES;
        self.nameTextField.userInteractionEnabled = NO;

        [self saveAction];
    }
}

现在一切正常。

editButtonItem不会更改编辑/完成标题

3 个答案: