我如何识别self.editButtonItem按钮的点击事件？

Question

我使用的代码

leftBarButton = self.editButtonItem; 

我想改变一些禁用/相对于编辑按钮的点击动作使其他按钮的属性中设置的UINavigationController的我左边栏按钮的编辑按钮。

我怎样才能找到是否按下编辑按钮？

Answer 1

编辑按钮的动作会向您的视图控制器发送setEditing:animated消息。在您的子类中重写此操作以在进入或退出编辑模式时执行其他操作。

确保在最后调用super实现来管理转换到编辑视图的其余部分。

Answer 2

UIBarButtonItem *barBut=[[UIBarButtonItem alloc]initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:@selector(doSomething)]; 


self.navigationItem.leftBarButtonItem=barBut; 

[barBut release]; 


.h 
-(void)doSomething; 

.m 

-(void)doSomething{ 

    NSLog(@"dooooooooooooo"); 
     //ur stuff 
} 

更新：

- (void)setEditing:(BOOL)editing animated:(BOOL)animated 

将被称为

editButtonItem 

Returns a bar button item that toggles its title and associated state between Edit and Done. 

- (UIBarButtonItem *)editButtonItem 

Discussion 
If one of the custom views of the navigationItem property is set to the returned object, the associated navigation bar displays an Edit button if editing is NO and a Done button if editing is YES. The default button action invokes the setEditing:animated: method. 

    Availability 
    Available in iOS 2.0 and later. 

    See Also 
    @property editing 

    – setEditing:animated: 


    Declared In 
    UIViewController.h 

http://developer.apple.com/library/ios/#DOCUMENTATION/UIKit/Reference/UIViewController_Class/Reference/Reference.html

Answer 3

所以最后我得到了解决办法...

-(void)setEditing:(BOOL)editing animated:(BOOL)animated { 

    [super setEditing:editing animated:animated]; 

    if(editing) { 
     //Do something for edit mode 
    } 

    else { 
     //Do something for non-edit mode 
    } 

} 

将调用此方法，但不更改self.editButtonItem按钮的原始行为。

Answer 4

在斯威夫特：

@IBOutlet weak var tableView: UITableView! 

override func viewDidLoad() { 
    super.viewDidLoad() 

    .... 
    self.navigationItem.leftBarButtonItem = self.editButtonItem() 
} 

override func setEditing(editing: Bool, animated: Bool) { 
    // Toggles the edit button state 
    super.setEditing(editing, animated: animated) 
    // Toggles the actual editing actions appearing on a table view 
    tableView.setEditing(editing, animated: true) 
} 

Answer 5

在斯威夫特，你可以按照下面的方法：

@IBOutlet weak var tableView: UITableView! 

    override func viewDidLoad() { 
     super.viewDidLoad() 
     navigationItem.rightBarButtonItem = editButtonItem() 
    } 

    override func setEditing(editing: Bool, animated: Bool){ 

     super.setEditing(editing, animated: animated) 
     tableView.setEditing(editing, animated: true) 


    }