本文实例分享了iOS购物分类模块的实现方案，供大家参考，具体内容如下

启动

在AppDelegate中创建主视图控制器。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { // Override point for customization after application launch. self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; // Override point for customization after application launch. self.window.backgroundColor = [UIColor whiteColor]; [self.window makeKeyAndVisible]; Basetabarcontroller*base=[[Basetabarcontroller alloc]init]; self.window.rootViewController=base; return YES; }

UI框架设计

Basetabbarcontroller基于UITabBarController，作为主视图控制器。

头文件如下：

@interface Basetabarcontroller : UITabBarController @end

实现文件中主要做了2点：创建视图控制器ClassViewController，并将它设置到新创建的创建导航控制器中。

- (void)viewDidLoad { [super viewDidLoad]; self.tabBar.tintColor = [UIColor redColor]; // self.tabBar.barTintColor = [UIColor blackColor]; ClassViewController*classList=[[ClassViewController alloc]init]; //classList.title=@"分类"; [self addChildViewController:classList title:@"分类" image:@""]; UIButton *menuBtn = [UIButton buttonWithType:UIButtonTypeCustom]; menuBtn.frame = CGRectMake(0, 0, 20, 18); [menuBtn setBackgroundImage:[UIImage imageNamed:@"1.png"] forState:UIControlStateNormal]; [menuBtn addTarget:self action:@selector(openOrCloseLeftList) forControlEvents:UIControlEventTouchUpInside]; self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:menuBtn]; //self.tabBar.barTintColor = [UIColor redColor]; } - (void)addChildViewController:(UIViewController *)childController title:(NSString *)title image:(NSString *)image{ UINavigationController *childVC = [[UINavigationController alloc]initWithRootViewController:childController]; childVC.tabBarItem.title = title; childVC.tabBarItem.image = [UIImage imageNamed:image]; childVC.navigationBar.barTintColor = [UIColor whiteColor]; [self addChildViewController:childVC]; }

主要的界面视图控制器定义：

@interface ClassViewController : UIViewController @end

实现文件中：

- (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view. UIBarButtonItem *searchBarButtonItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:@selector(searchBarButtonItemAction)]; self.navigationItem.rightBarButtonItem = searchBarButtonItem; [self setdata]; [self setimage]; [self setdeatil]; _a=1; _b=1; _segement=[[UISegmentedControl alloc]initWithItems:@[@"攻略",@"详情"]]; _segement.frame=CGRectMake(90, 20, kwidth-180, 30); _segement.tintColor=[UIColor blackColor]; _segement.selectedSegmentIndex=0; [_segement addTarget:self action:@selector(changevalue:) forControlEvents:(UIControlEventValueChanged)]; self.navigationItem.titleView =_segement; self.scrollview=[[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, kwidth, KHeight)]; _scrollview.directionalLockEnabled=YES; _scrollview.contentSize=CGSizeMake(kwidth*2, KHeight); _scrollview.delegate=self; [self.view addSubview:self.scrollview]; UICollectionViewFlowLayout*flow=[[UICollectionViewFlowLayout alloc]init]; //列距 flow.minimumInteritemSpacing=20; //行距 flow.minimumLineSpacing=40; //分区内边距 flow.sectionInset=UIEdgeInsetsMake(0, 20, 20, 20); CGFloat totalwidth=self.view.frame.size.width; CGFloat itemwidth=(totalwidth-2*20-3*20)/4.0; CGFloat itemheight=itemwidth; flow.itemSize=CGSizeMake(itemwidth, itemheight); flow.headerReferenceSize=CGSizeMake(0, 40); //滚动方向 flow.scrollDirection= UICollectionViewScrollDirectionVertical; ; //区头大小 flow.headerReferenceSize=CGSizeMake(0, 100); _collection=[[UICollectionView alloc]initWithFrame:[UIScreen mainScreen].bounds collectionViewLayout:flow]; _collection.backgroundColor=[UIColor whiteColor]; _collection.tag=1; _Srr=@[@"1",@"s",@"2",@"r"]; for (NSString*St in _Srr) { [_collection registerClass:[UICollectionReusableView class] forSupplementaryViewOfKind:UICollectionElementKindSectionHeader withReuseIdentifier:St];} //设置 数据源 和代理 _collection.dataSource=self; _collection.delegate=self; [_collection registerClass:[ClassCollectionViewCell class] forCellWithReuseIdentifier:@"mycell"]; // _collection.backgroundColor=[UIColor yellowColor]; _collection.directionalLockEnabled=YES; [self.scrollview addSubview:_collection]; UIView*view=[[UIView alloc]initWithFrame:CGRectMake(kwidth, 0, kwidth, 30)]; // view.backgroundColor = [UIColor whiteColor]; UIButton*label=[UIButton buttonWithType:(UIButtonTypeSystem)]; label.frame=CGRectMake(0, 20, 200, 14) ; [label setTitle:@"选礼神器" forState:(UIControlStateNormal)]; [label addTarget:self action:@selector(xuan) forControlEvents:(UIControlEventTouchUpInside)]; [view addSubview:label]; [self.scrollview addSubview:view];

网络数据封装

基于NFNetworking，封装了3个接口

@interface LORequestManger : NSObject + (void)POST:(NSString *)URL params:(NSDictionary * )params success:(void (^)(id response))success failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error; + (void)GET:(NSString *)URL success:(void (^)(id response))success failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error; + (void)UPLOADIMAGE:(NSString *)URL params:(NSDictionary *)params uploadImage:(UIImage *)image success:(void (^)(id response))success failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error; @end

实现文件：

#import "LORequestManger.h" #define serverUrl @"http://192.168.1.1:8080/jiekou" @implementation LORequestManger + (void)POST:(NSString *)URL params:(NSDictionary * )params success:(void (^)(id response))success failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error { // 创建请求管理者 AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; // 请求超时时间 manager.requestSerializer.timeoutInterval = 30; NSString *postStr = URL; if (![URL hasPrefix:@"http"]) { postStr = [NSString stringWithFormat:@"%@%@", serverUrl,URL] ; } NSMutableDictionary *dict = [params mutableCopy]; // 发送post请求 [manager POST:postStr parameters:dict success:^(AFHTTPRequestOperation *operation, id responseObject) { // 请求成功 NSDictionary *responseDict = (NSDictionary *)responseObject; success(responseDict); } failure:^(AFHTTPRequestOperation *operation, NSError *error) {// 请求失败 Error( operation,error); }]; } + (void)GET:(NSString *)URL success:(void (^)(id response))success failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error { // 获得请求管理者 AFHTTPRequestOperationManager *manager = [[AFHTTPRequestOperationManager alloc] init]; manager.requestSerializer = [AFJSONRequestSerializer serializer]; [manager.requestSerializer setHTTPShouldHandleCookies:NO]; manager.requestSerializer.timeoutInterval = 30; NSString *getStr = URL; // NSLog(@"getStr======%@",getStr); if (![URL hasPrefix:@"http"]) { getStr = [NSString stringWithFormat:@"%@%@", serverUrl,URL] ; } // 发送GET请求 [manager GET:getStr parameters:nil success:^(AFHTTPRequestOperation *operation, id responseObject) { // NSLog(@"getStr------------%@",getStr); NSDictionary *responseDict = (NSDictionary *)responseObject; success(responseDict); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { if (!operation.responseObject) { NSLog(@"网络错误"); } Error( operation,error); }]; } + (void)UPLOADIMAGE:(NSString *)URL params:(NSDictionary *)params uploadImage:(UIImage *)image success:(void (^)(id response))success failure:(void (^)(AFHTTPRequestOperation *operation,NSError *error))Error { // 创建请求管理者 AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager]; manager.requestSerializer = [AFJSONRequestSerializer serializer]; manager.responseSerializer = [AFJSONResponseSerializer serializer]; manager.requestSerializer.timeoutInterval = 30; // [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Content-Type"]; // // [manager.requestSerializer setValue:@"application/json" forHTTPHeaderField:@"Accept"]; NSString *postStr = [NSString stringWithFormat:@"%@%@", serverUrl,URL] ; NSMutableDictionary *dict = [params mutableCopy]; [manager POST:postStr parameters:dict constructingBodyWithBlock:^(id<AFMultipartFormData> formData) { NSData *imageData = UIImageJPEGRepresentation(image, 0.1); [formData appendPartWithFileData:imageData name:@"img" fileName:@"head.jpg" mimeType:@"image/jpeg"]; } success:^(AFHTTPRequestOperation *operation, id responseObject) { NSDictionary *responseDict = (NSDictionary *)responseObject; success(responseDict); } failure:^(AFHTTPRequestOperation *operation, NSError *error) { Error( operation,error); }]; }

效果：

以上就是本文的全部内容，希望对大家的学习有所帮助。