自定义NavgationBa返回按钮

iOS  上UINavigationController视图压栈形式，可以在当前视图无限制push许多视图，然而一些会觉得自带的push按钮不够美观，而且当上的上一个页面title很长的时候，那个返回按钮就很长,怎样定义一个自己返回按钮呢？像第三幅图片一样。。。

  

需要push的视图里面定义一个事件

 

- (IBAction)pushVC:(id)sender {

    NavViewController *navVC = (NavViewController *)[self.storyboard instantiateViewControllerWithIdentifier:@"NavViewController"];

    navVC.title = NSLocalizedString(@"设置", nil);

    [self.navigationController pushViewController:navVC animated:YES];

}

 

替换返回按钮，定义自定义按钮

 

- (void)viewDidLoad

{

    [super viewDidLoad];

    

    UIButton *backBtn = [UIButton buttonWithType:UIButtonTypeCustom];

    backBtn.frame = CGRectMake(0, 0, 44, 44);

    

    [backBtn setImage:[UIImage imageNamed:@"back.png"] forState:UIControlStateNormal];

    [backBtn addTarget:self action:@selector(doBack:) forControlEvents:UIControlEventTouchUpInside];

    

    UIBarButtonItem *backItem = [[UIBarButtonItem alloc] initWithCustomView:backBtn];

    self.navigationItem.leftBarButtonItem = backItem;

     

	// Do any additional setup after loading the view.

}



-(void)doBack:(id)sender

{

    [self.navigationController popViewControllerAnimated:YES];

}

 

源码下载地址:https://github.com/XFZLDXF/XFNavBarBtn

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