美团自定义导航栏的代码如何改写以适应长尾词优化？

本文共计803个文字，预计阅读时间需要4分钟。

1. 右侧两个图标：直接添加两个UIBarButtonItem，每个UIBarButtonItem中各自添加一个UIButton，然后设置button的图片。为了方便，使用分类自定义UIBarButtonItem，代码如下：

swiftextension UIBarButtonItem { convenience init(imageName: String, target: Any?, action: Selector) { let button=UIButton(type: .custom) button.setImage(UIImage(named: imageName), for: .normal) button.sizeToFit() self.init(customView: button) button.addTarget(target, action: action, for: .touchUpInside) }}

2. 右侧两个图标：直接添加两个UIBarButtonItem，代码如下：

swiftnavigationItem.rightBarButtonItem=UIBarButtonItem(image: UIImage(named: icon1), style: .plain, target: self, action: #selector(action1))navigationItem.rightBarButtonItem?.addSubview(UIBarButtonItem(image: UIImage(named: icon2), style: .plain, target: self, action: #selector(action2)))

一.右边两个图标：直接添加两个UIBarButtonItem，其中各自添加UIButton，然后再设置button的图片，为了方便，使用分类自定义，UIBarButtonItem+

一.右边两个图标：直接添加两个UIBarButtonItem，其中各自添加UIButton，然后再设置button的图片，为了方便，使用分类自定义，UIBarButtonItem+DQCategory.h

二.左边加四个UIBarButtonItem，其中各自添加自定义的view，设置好xib的宽高，连个lable，一个按钮button，按钮应该覆盖整个区域以确保整个xib点击都有效果，然后设置按钮靠左对其即可

1.右边图标按钮

分类.h文件

+ (UIBarButtonItem *)itemWithImageName:(NSString *)imageName highImageName:(NSString *)highImageName taget:(id)taget action:(SEL)action

分类.m文件//只能添加方法，不能添加属性+ (UIBarButtonItem *)itemWithImageName:(NSString *)imageName highImageName:(NSString *)highImageName taget:(id)taget action:(SEL)action{ UIButton *button = [[UIButton alloc] init]; [button setImage:[UIImage imageNamed:imageName] forState:UIControlStateNormal];//普通 [button setImage:[UIImage imageNamed:highImageName] forState:UIControlStateHighlighted];//高亮 [button addTarget:taget action:action forControlEvents:UIControlEventTouchUpInside];//点击事件 button.frame = CGRectMake(0, 0, 60, 40);//根据宽度调整两个图标的间距 // button.backgroundColor = [UIColor redColor]; return [[UIBarButtonItem alloc]initWithCustomView:button];}//在控制器.m w文件中 设置右边两个items- (void)setUpRightNavItems{ //地图 UIBarButtonItem *mapItem = [UIBarButtonItem itemWithImageName:@"icon_map" highImageName:@"icon_map_highlighted" taget:self action:@selector(clickMap)]; //搜索框 UIBarButtonItem *searchItem = [UIBarButtonItem itemWithImageName:@"icon_search" highImageName:@"icon_search_highlighted" taget:self action:@selector(clickSearch)]; self.navigationItem.rightBarButtonItems = @[mapItem,searchItem];}

2.左边的区域

.xib（140*40）   DQNavLeftView.h

按钮设置（约束都是0）

DQNavLeftView.h@property (weak, nonatomic) IBOutlet UILabel *subTitleLable;@property (weak, nonatomic) IBOutlet UILabel *titleLable;@property (weak, nonatomic) IBOutlet UIButton *imageButton;//返回从xib加载的视图+ (id)view;DQNavLeftView.m

//返回从xib加载的视图

+ (id)view{

    return [[[NSBundle mainBundle] loadNibNamed:@"DQNavLeftView" owner:nil options:nil] lastObject];

}

 

//防止控件拉伸

- (id)initWithCoder:(NSCoder *)aDecoder{

    if (self=[super initWithCoder:aDecoder]) {

        self.autoresizingMask = UIViewAutoresizingNone;

    }

    return self;

}

 

控制器.m文件 

//设置左边items

- (void)setUpLeftNavItems{

    //LOGO

    UIBarButtonItem *logoItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:@"icon_meituan_logo"] style:UIBarButtonItemStyleDone target:nil action:nil];

    logoItem.enabled = NO;

    

    //分类

    self.categoryView = [DQNavLeftView view];

    UIBarButtonItem *categoryItem = [[UIBarButtonItem alloc]initWithCustomView:self.categoryView];

    [self.categoryView.imageButton addTarget:self action:@selector(cilckCategoryView) forControlEvents:UIControlEventTouchUpInside];

    

    //城市

    self.cityView = [DQNavLeftView view];

    self.cityView.titleLable.text = @"广州";//首页加载完一开始显示的

    UIBarButtonItem *cityItem = [[UIBarButtonItem alloc]initWithCustomView:self.cityView];

    [self.cityView.imageButton addTarget:self action:@selector(clickCityView) forControlEvents:UIControlEventTouchUpInside];

    

    //排序

    self.sortView = [DQNavLeftView view];

    self.sortView.titleLable.text = @"默认排序";//首页加载完一开始显示的

    [self.sortView.imageButton addTarget:self action:@selector(clickSortView) forControlEvents:UIControlEventTouchUpInside];

    UIBarButtonItem *sortItem = [[UIBarButtonItem alloc]initWithCustomView:self.sortView];

    

    

    self.navigationItem.leftBarButtonItems = @[logoItem,categoryItem,cityItem,sortItem];

}

美团自定义导航栏思路以及代码