首页 / 移动开发 / IOS / iOS购物分类模块的实现方案

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 *）URLsuccess:（void （^）（id response））successfailure:（void （^）（AFHTTPRequestOperation *operation,NSError *error））Error; + （void）UPLOADIMAGE:（NSString *）URL params:（NSDictionary *）paramsuploadImage:（UIImage *）imagesuccess:（void （^）（id response））successfailure:（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 *）URLsuccess:（void （^）（id response））successfailure:（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 *）paramsuploadImage:（UIImage *）imagesuccess:（void （^）（id response））successfailure:（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。