Bar Button Item Issue

Question

我有一个名为SAVE的Bar Button，当它运行的程序自动显示SAVE的标题但是当我编辑该特定视图中的内容时，标题应该改为EDIT是否有可用的编码？

Answer 1

There is indeed a solution for this, and its called editButtonItem() .

What you need to do is add this in your viewDidLoad:

self.editButtonItem().action = "yourAction"
self.navigationItem.leftBarButtonItem = self.editButtonItem()

Answer 2

If you have the instance of your UIBarButtonItem then you can try doing the below code I suppose you have your object with the name "objSaveButton".

[objSaveButton setTitle:@"EDIT"];

or if you don't have the instance you can get the same from UINavigationController

if it is your left bar button item do this: [navigationController.navigationItem.leftBarButtonItem setTitle:@"EDIT"];

and if it is your right bar button do this:

[navigationController.navigationItem.rightBarButtonItem setTitle:@"EDIT"];

Answer 3

Set the tag in your button.

-(IBAction) add:(id)sender
{
    if([sender tag] == 0){

// set the button title as "Save"      

    }
    else{
// set the button title as "Edit"  
        Button1.tag=0;
    }
}

Hope this will help you.