How to set the Navigationitem of Uinavigationcontroller

Method 1

Self. Navigationitem. Rightbarbuttonitem = [[uibarbuttonitem alloc] initwithbarbuttonsystemitem: Uibarbuttonsystemitemedit target:self action:@selector(edit)];

< Span class= "S3" > where the Edit method in @selector is the Listen method for the Edit button

< Span class= "S3" >/*

< Span class= "S3" >* Custom listener Events

< Span class= "S3" >*/

< Span class= "S3" >-(voin) edit

< Span class= "S3" >{

< Span class= "S3" >}

Method 2

Self. Navigationitem. Rightbarbuttonitem = self. Editbuttonitem;

The edit button defined by the method has the system's own listening method

/*

* Listen for the Edit event (this method is a method in Uiviewcontroller, so other Uiviewcontroller subclasses can also be called, and can be nested calls )

*/

If the class has attributes @property (nonatomic,retain) UITableView *mytableview;

The

-(void) setediting: (bool) editing animated: (bool) animated

{

[Super setediting: Editing animated: animated]; When the method is called, the method of the parent class must be called First

NSLog(@ " edit state:%@", editing? ) @ "Yes":@ "no");

[_mytableview setediting: Editing animated: animated];

}

Method 3

UIButton *leftbtn = [[UIButton alloc] initwithframe:cgrectmake(0, 0, 40, )];

[Leftbtn settitle:@ " edit " forstate:uicontrolstatenormal];

[Leftbtn settitlecolor: [uicolor blackcolor] forstate: UIControlStateNormal];

[Leftbtn addTarget:self action:@selector(edit) forcontrolevents: UIControlEventTouchUpInside];

uibarbuttonitem *leftitem = [[uibarbuttonitem alloc] initwithcustomview: LEFTBTN];

self. Navigationitem. Leftbarbuttonitem = leftitem;

How to set the Navigationitem of Uinavigationcontroller