導航欄上的自定義後退按鈕圖像不起作用！ [iPhone SDK]

Question

嗨，大家好，我創建了一個自定義的導航後退按鈕，但是當我添加此代碼時，我的後臺動畫不起作用，並返回動畫。爲什麼？我認爲這取決於我的@selector行動！

- (void)viewDidLoad { 


    UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom]; 
    [button setImage:[UIImage imageNamed:@"goback.png"] forState:UIControlStateNormal]; 
    [button addTarget:self action:@selector(//HERE ! i don't know put what thing !) forControlEvents:UIControlEventTouchUpInside]; 
    [button setFrame:CGRectMake(0, 0, 32, 32)]; 
    self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button]; 


} 

Answer 1

好，我創建了一個功能和正常工作：d：

-(void)pushNav { 
[self.navigationController popViewControllerAnimated:YES]; 
}