如何在UINavigationController中添加向右按钮?

Question

想要在navigation controller 的顶端条添加一个刷新键。不知道为什么不执行。hearder代码：@interface PropertyViewController : UINavigationController {}添加button代码：(id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil { if (self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]) {    UIBarButtonItem *anotherButton = [[UIBarButtonItem alloc] initWithTitle:@"Show" style:UIBarButtonItemStylePlain            target:self action:@selector(refreshPropertyList:)];    self.navigationItem.rightBarButtonItem = anotherButton; } return self; } 不知道错误在哪儿

Answer 1

你可以断点看看，这段代码有没有执行。初始化方法有多个，检查一下调用的对不对？

Answer 2

将initWithNibName:bundle:替换为initWithRootViewController: