如何在obcjective -c中更改编辑和完成按钮的文本？

Question

我想更改导航栏上的“编辑”和“完成”按钮的文本，在我用Objective-c编写的iOS应用中，我该怎么做？

Answer 1

这是你想要的。

    UIButton *btncustome = [[UIButton alloc]initWithFrame:CGRectMake(0, 0, 60, 30)];
    [btncustome setTitle:@"Edit" forState:UIControlStateNormal];
    [btncustome setTitle:@"Done" forState:UIControlStateSelected];

    UIBarButtonItem *rightbtn = [[UIBarButtonItem alloc]initWithCustomView:btncustome] ;
    self.navigationController.navigationItem.rightBarButtonItem = rightbtn;

Answer 2

从UINavigationController获取UIBarButton并使用setTitle方法更改文字。

UINavigationItem *items = [[[[self navigationController] navigationBar] items] lastObject];

    UIBarButtonItem *cancelButton = [item leftBarButtonItem];
    UIBarButtonItem *editButton = [item rightBarButtonItem];

    [cancelButton setTitle:@"New Title"];
    [editButton setTitle:@"New Title"];