如何在导航栏中创建后退按钮

Question

我有2页.第一个是tableView,第二个是当我点击任何单元格时进入下一页(视图)的模式segue.我想在导航栏的下一页中添加后退按钮.这是我在视图页面中的代码: ViewController.m

- (void)viewDidLoad
{
    [super viewDidLoad];
    self.lable.text = obji.Name;
    self.lable2.text = obji.Descript;

    UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style:UIBarButtonItemStyleBordered target:self action:@selector(Back)];
    self.navigationItem.leftBarButtonItem = backButton;
}

- (IBAction)Back
{
    //I dont know that how return pervious page
}

Answer 1

正如您在评论中所说,您使用模态控制器

在viewWillappear中添加以下内容

     UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:@"Back" style: UIBarButtonItemStyleBordered target:self action:@selector(Back)];
     self.navigationItem.leftBarButtonItem = backButton;

并在

- (IBAction)Back
  {
    [self dismissViewControllerAnimated:YES completion:nil]; // ios 6
  }

Answer 2

斯威夫特3

let backButton: UIBarButtonItem = UIBarButtonItem(title: "Back", style: .plain, target: self, action: #selector(back))
    self.navigationItem.leftBarButtonItem = backButton

func back() {
    self.dismiss(animated: true, completion: nil) }