在UIViewController的viewDidLoad函数中使用以下代码:

self.navigationItem.hidesBackButton = YES;

最好的方法是将它们结合起来，所以即使你手动设置它，它也会隐藏后退按钮:

self.navigationItem.leftBarButtonItem=nil;
self.navigationItem.hidesBackButton=YES;

使用代码:

 self.navigationItem.backBarButtonItem=nil;

试试这个—— self.navigationController ? .navigationItem。hidesBackButton = true

objective - c: self.navigationItem.hidesBackButton = YES;

迅速: navigationItem。hidesBackButton = true

在c#或Xamarin.ios中， this.NavigationItem.HidesBackButton = true;