导航栏上的自定义后退按钮图像不起作用！ [iPhone SDK]

Question

大家好我创建了一个自定义导航后退按钮，但是当我添加此代码时，我的后期动画无效并返回动画。为什么？我认为这取决于我的@selector动作！

- (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

好吧我创建了一个功能并且工作正常：D：

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