在ios中设置后栏按钮项的标题 [英] set title of back bar button item in ios

问题描述

我在我的应用程序中使用故事板，如果我设置了ViewController类的title属性，当我按下SecondViewController时，该字符串将显示为我的后退按钮的文本，我该如何更改？，我想要为后退按钮添加了不同的标题。

I am using storyboards in my application, and if I set the title property of a ViewController class, that string will appear as the text of my back button when I push a SecondViewController, how can I change this?, I want to put a different title for the back button.

我已经使用了这个但它不起作用：

I have used this but it doesn't work:

UIBarButtonItem *btnBack = [[UIBarButtonItem alloc]
                                   initWithTitle:@"Back" 
                                   style:UIBarButtonItemStyleBordered
                                   target:self
                                   action:nil];
    [self.navigationItem setBackBarButtonItem: btnBack];

请帮帮我

推荐答案

试试这个，

Objective-C：

Objective-C:

UIBarButtonItem *btnBack = [[UIBarButtonItem alloc]
                            initWithTitle:@"Done"
                            style:UIBarButtonItemStyleBordered
                            target:self
                            action:nil];
self.navigationController.navigationBar.topItem.backBarButtonItem=btnBack;

Swift：

var btn = UIBarButtonItem(title: "Done", style: .Plain, target: self, action: "backBtnClicked")

self.navigationController?.navigationBar.topItem?.backBarButtonItem=btn

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