Ios 在Objective C的所有视图控制器中可重用UIBarButtonItem

我正在使用背景色和字体大小制作自定义导航栏。此外，我在右边有“添加菜单”按钮。为此，我将其分类为

UINavigationController+透明.h

 @interface UINavigationController (Transparent)
   - (void)presentTransparentNavigationBar;
   - (void)hideTransparentNavigationBar;
 @end

UINavigationController+Transparent.m

#import "UINavigationController+Transparent.h"

@implementation UINavigationController (Transparent)

UIBarButtonItem *menuButton;

- (void)presentTransparentNavigationBar;
{
menuButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"menu_icon"] style:UIBarButtonItemStylePlain target:self action:@selector(showMenu:)];

    [menuButton setTintColor:[UIColor whiteColor]];

    self.navigationItem.rightBarButtonItem = menuButton;


UIImage *backButtonImage = [UIImage imageNamed:@"back"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];

[backButton setImage:backButtonImage
            forState:UIControlStateNormal];

backButton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);

[backButton addTarget:self
               action:@selector(popViewController)
     forControlEvents:UIControlEventTouchUpInside];

UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = backBarButtonItem;


    [self.navigationBar setTranslucent:NO];
    [self.navigationBar setShadowImage:[UIImage new]];
    [self.navigationBar setBarTintColor:[UIColor wolfRed]];
    [self.navigationBar setTitleTextAttributes:
        @{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont fontWithName:@"Helvetica" size:19.0] }];
    [self setNavigationBarHidden:NO animated:NO];
}


- (void)hideTransparentNavigationBar
{
  [self setNavigationBarHidden:YES animated:NO];
  [self.navigationBar setBackgroundImage:[[UINavigationBar appearance] backgroundImageForBarMetrics:UIBarMetricsDefault] forBarMetrics:UIBarMetricsDefault];
  [self.navigationBar setTranslucent:[[UINavigationBar appearance] isTranslucent]];
  [self.navigationBar setShadowImage:[[UINavigationBar appearance] shadowImage]];
}
@end

在我的视图控制器中，我调用

[self.navigationController presentTransparentNavigationBar];

或

问题是菜单按钮不可见，后退按钮看起来像是标准的iOS蓝色后退按钮。 谢谢你的帮助

请参见我使用以下方法自定义导航栏 目标c

步骤1确保视图控制器嵌入到导航控制器中

步骤2：在资产中添加所需图标，如“菜单图标”和“返回”

步骤3.使用objective-C，您可以根据需要自定义导航栏

我总是这样做

#import "ViewController.h"
@interface ViewController (){UIBarButtonItem *menuButton;}
@end


@implementation ViewController

#pragma mark - life cycle methods
- (void)viewDidLoad {[super viewDidLoad];}
- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];}

#pragma mark - IBAction methods
- (IBAction)showClicked:(id)sender {[self presentTransparentNavigationBar];}
- (IBAction)hideClicked:(id)sender {[self hideTransparentNavigationBar];}

#pragma mark - Navigation Bar methods

//Customize Naviagtion Bar
- (void)presentTransparentNavigationBar;
{
    //Add Menu Button to Navigaiton Bar
    menuButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"menu_icon"] style:UIBarButtonItemStylePlain target:self action:@selector(showMenu:)];
    [menuButton setTintColor:[UIColor whiteColor]];
    self.navigationItem.rightBarButtonItem = menuButton;
    
    
    //Add Back button to Navigation Bar
    UIImage *backButtonImage = [UIImage imageNamed:@"back"];
    UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [backButton setImage:backButtonImage
                forState:UIControlStateNormal];
    backButton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
    [backButton addTarget:self
                   action:@selector(popViewController)
         forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
    self.navigationItem.leftBarButtonItem = backBarButtonItem;
    
    //Config Navigaton bar settings
    [self.navigationController.navigationBar setTranslucent:NO];
    [self.navigationController.navigationBar setShadowImage:[UIImage new]];
    [self.navigationController.navigationBar setBarTintColor:[UIColor lightGrayColor]];//I used light gray color
    [self.navigationController.navigationBar setTitleTextAttributes:
     @{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont fontWithName:@"Helvetica" size:19.0] }];
    [self.navigationController.navigationBar setHidden:NO];
}


//Hide Navigation Bar
- (void)hideTransparentNavigationBar
{
    [self.navigationController.navigationBar setHidden:YES];
    [self.navigationController.navigationBar setBackgroundImage:[[UINavigationBar appearance] backgroundImageForBarMetrics:UIBarMetricsDefault] forBarMetrics:UIBarMetricsDefault];
    [self.navigationController.navigationBar setTranslucent:[[UINavigationBar appearance] isTranslucent]];
    [self.navigationController.navigationBar setShadowImage:[[UINavigationBar appearance] shadowImage]];
}

- (void) showMenu:(id) sender{ /*TODO when clicks on Menu button */ }
- (void) popViewController{    /*TODO when clicks on Back button */ }

@end

如果一切正常，当你点击屏幕上的“显示”按钮时，你应该能够将菜单和返回按钮转到导航栏

注:

---

您可以在AppDelegate文件中执行此操作，这样它将在整个应用程序中可用

这是一个非常好的答案！但是我如何在每个ViewController上使用相同的菜单按钮而不在每个视图中复制代码呢？谢谢！！您需要在AppDelegate的方法DidFinishLaunchingWithOptions中使用相同的逻辑是否可以初始化UINavigationViewController而不在AppDelegate中定义rootviewController？

#import "ViewController.h"
@interface ViewController (){UIBarButtonItem *menuButton;}
@end


@implementation ViewController

#pragma mark - life cycle methods
- (void)viewDidLoad {[super viewDidLoad];}
- (void)didReceiveMemoryWarning {[super didReceiveMemoryWarning];}

#pragma mark - IBAction methods
- (IBAction)showClicked:(id)sender {[self presentTransparentNavigationBar];}
- (IBAction)hideClicked:(id)sender {[self hideTransparentNavigationBar];}

#pragma mark - Navigation Bar methods

//Customize Naviagtion Bar
- (void)presentTransparentNavigationBar;
{
    //Add Menu Button to Navigaiton Bar
    menuButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:@"menu_icon"] style:UIBarButtonItemStylePlain target:self action:@selector(showMenu:)];
    [menuButton setTintColor:[UIColor whiteColor]];
    self.navigationItem.rightBarButtonItem = menuButton;
    
    
    //Add Back button to Navigation Bar
    UIImage *backButtonImage = [UIImage imageNamed:@"back"];
    UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
    [backButton setImage:backButtonImage
                forState:UIControlStateNormal];
    backButton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
    [backButton addTarget:self
                   action:@selector(popViewController)
         forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
    self.navigationItem.leftBarButtonItem = backBarButtonItem;
    
    //Config Navigaton bar settings
    [self.navigationController.navigationBar setTranslucent:NO];
    [self.navigationController.navigationBar setShadowImage:[UIImage new]];
    [self.navigationController.navigationBar setBarTintColor:[UIColor lightGrayColor]];//I used light gray color
    [self.navigationController.navigationBar setTitleTextAttributes:
     @{NSForegroundColorAttributeName:[UIColor whiteColor], NSFontAttributeName:[UIFont fontWithName:@"Helvetica" size:19.0] }];
    [self.navigationController.navigationBar setHidden:NO];
}


//Hide Navigation Bar
- (void)hideTransparentNavigationBar
{
    [self.navigationController.navigationBar setHidden:YES];
    [self.navigationController.navigationBar setBackgroundImage:[[UINavigationBar appearance] backgroundImageForBarMetrics:UIBarMetricsDefault] forBarMetrics:UIBarMetricsDefault];
    [self.navigationController.navigationBar setTranslucent:[[UINavigationBar appearance] isTranslucent]];
    [self.navigationController.navigationBar setShadowImage:[[UINavigationBar appearance] shadowImage]];
}

- (void) showMenu:(id) sender{ /*TODO when clicks on Menu button */ }
- (void) popViewController{    /*TODO when clicks on Back button */ }

@end