實施工具欄（故事板）中的編輯按鈕

Question

我試圖實現一個工具欄按鈕。
在這種情況下，我的視圖中的編輯按鈕。
我在檢查器中選擇工具欄，然後添加一個帶故事板的按鈕。
我在viewdidload中編寫了這個方法，但有些地方是錯誤的。該按鈕不顯示在工具欄中。

有人能幫助我使它工作嗎？

- (void)viewDidLoad 
{ 
    [super viewDidLoad]; 

    UIBarButtonItem *editButton = [[UIBarButtonItem alloc] initWithTitle:@"Birds" 
                    style:UIBarButtonItemStyleBordered 
                    target:self 
                    action:@selector(goToBirdsView:)]; 

    NSArray *toolbarItems = [NSArray arrayWithObject:editButton]; 

    self.navigationController.toolbarHidden = NO; 
} 

-(IBAction)goToBirdsView:(UIButton *)sender 
{ 
    [self performSegueWithIdentifier:segueToBirdsList sender:self]; 
} 

Answer 1

- (void)viewDidLoad 
{ 
    toolBar = [[UIToolBar alloc]initWithFrame:(As_U_Need)]; 
    NSMutableArray *barItems = [[NSMutableArray alloc] init]; 
    UIBarButtonItem *flexSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:self action:nil]; 
     [barItems addObject:flexSpace]; 

     UIBarButtonItem * editButton= [[UIBarButtonItem alloc] initWithTitle:@"Birds" style:UIBarButtonItemStyleBordered target:self action:@selector(goToBirdsView:)]; 
    [barItems addObject: editButton]; 

    [toolBar setItems:barItems animated:YES]; 
    [self.view addSubView:toolBar]; 

} 

-(IBAction)goToBirdsView:(UIButton *)sender 
{ 
      [self performSegueWithIdentifier:segueToBirdsList sender:self]; 
}