如何將自定義項添加到導航欄中

Question

我一直在用不同類型的代碼爭取幾個小時來將自定義項添加到導航欄中。不幸的是它失敗了，沒有調試錯誤。現在我只能改變欄的標題。

的代碼在viewDidLoad方法中添加了特殊的ViewController：

UIBarButtonItem *gotoNext = [[UIBarButtonItem alloc] initWithTitle:@"Goto next" style:UIBarButtonItemStylePlain target:self action:@selector(gotoNextAction)]; 

self.navigationItem.rightBarButtonItem = gotoNext; 

我嘗試下面的代碼，但遺憾的是沒有任何的運氣：

UIView* container = [[UIView alloc] init]; 
UIButton * button = [[UIButton alloc] init]; 

[button setTitle:@"Test" forState:UIControlStateNormal]; 

[container addSubview:button]; 

UIBarButtonItem* item = [[UIBarButtonItem alloc] initWithCustomView:container]; 

self.navigationItem.rightBarButtonItem = item; 

Answer 1

爲此，你必須在導航欄項目

UIBarButtonItem *bi = [[UIBarButtonItem alloc] 
         initWithCustomView:myButton]; 

添加自定義視圖有關更多詳細信息請參考以下鏈接

Adding bar button item in navigation bar

How to add several UIBarButtonItems to a NavigationBar?

Answer 2

我可以看到你的代碼錯誤的唯一的事是選擇器名稱末尾缺失的冒號。它應該閱讀：

UIBarButtonItem *gotoNext = [[UIBarButtonItem alloc] initWithTitle:@"Goto next" style:UIBarButtonItemStylePlain target:self action:@selector(gotoNextAction:)];