如何自定义导航栏后退按钮

Question

当我做导航默认其添加后退按钮导航栏。

我们可以自定义后退按钮吗？

如果是如何做到这一点？

让我添加图片

@thanks提前。

Answer 1

您可以通过搜索堆栈溢出，谷歌或苹果的文档很容易发现这一点，这是几乎可以肯定是一个傻瓜，但无论如何：

UIBarButtonItem *btn = [[UIBarButtonItem alloc] initWithTitle:@"Custom" style:UIBarButtonItemStyleBordered target:self action:@selector(someSelector)];  
self.navigationItem.leftBarButtonItem = btn; 
[btn release]; 

Answer 2

让IBOutlet中，你的导航栏的合成，也连接参考从笔尖，并尝试下面的代码。

- (void)viewDidLoad { 
UIBarButtonItem * backButton = [[UIBarButtonItem alloc]initWithTitle:@"Back" style:UIBarButtonItemStylePlain target:self action:@selector(backView)]; 
//navBar is your Navigation Bar 
navBar.topItem.leftBarButtonItem = backButton; 
} 
-(IBAction) backView 
{ 
    [self.navigationController popViewControllerAnimated:YES]; 
} 

Answer 3

You can hide back bar button and can create a custom button. 

    self.navigationItem.hidesBackButton=YES; 
    UIButton *back = [[UIButton alloc] initWithFrame:CGRectMake(15, 7, 49, 29)]; 
    [back setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal]; 
    [back addTarget:self action:@selector(back) forControlEvents:UIControlEventTouchUpInside]; 
    UIBarButtonItem *back1 = [[UIBarButtonItem alloc] initWithCustomView:back]; 
    self.navigationItem.leftBarButtonItem = back1;