IOS第四天-新浪微博 -存储优化OAuth授权账号信息，下拉刷新，字典转模型

*************application

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {// 1.创建窗口self.window = [[UIWindow alloc] init];self.window.frame = [UIScreen mainScreen].bounds;// 2.设置根控制器HWAccount *account = [HWAccountTool account];if (account) { // 之前已经登录成功过 [self.window switchRootViewController];} else {self.window.rootViewController = [[HWOAuthViewController alloc] init]; //授权登陆的界面}// 3.显示窗口 [self.window makeKeyAndVisible];return YES; }

*************存储账号的信息HWAccountTool.m

// 账号的存储路径 #define HWAccountPath [[NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject] stringByAppendingPathComponent:@"account.archive"]#import "HWAccountTool.h" #import "HWAccount.h"@implementation HWAccountTool/*** 存储账号信息** @param account 账号模型*/ + (void)saveAccount:(HWAccount *)account {// 获得账号存储的时间（accessToken的产生时间）account.created_time = [NSDate date];// 自定义对象的存储必须用NSKeyedArchiver，不再有什么writeToFile方法 [NSKeyedArchiver archiveRootObject:account toFile:HWAccountPath]; }/*** 返回账号信息** @return 账号模型（如果账号过期，返回nil）*/ + (HWAccount *)account {// 加载模型HWAccount *account = [NSKeyedUnarchiver unarchiveObjectWithFile:HWAccountPath];/* 验证账号是否过期 */// 过期的秒数long long expires_in = [account.expires_in longLongValue];// 获得过期时间NSDate *expiresTime = [account.created_time dateByAddingTimeInterval:expires_in];// 获得当前时间NSDate *now = [NSDate date];// 如果expiresTime <= now，过期/**NSOrderedAscending = -1L, 升序，右边 > 左边NSOrderedSame, 一样NSOrderedDescending 降序，右边 < 左边*/NSComparisonResult result = [expiresTime compare:now];if (result != NSOrderedDescending) { // 过期return nil;}return account; } @end

*******HWAccount.m

#import "HWAccount.h"@implementation HWAccount + (instancetype)accountWithDict:(NSDictionary *)dict {HWAccount *account = [[self alloc] init];account.access_token = dict[@"access_token"];account.uid = dict[@"uid"];account.expires_in = dict[@"expires_in"];return account; }/*** 当一个对象要归档进沙盒中时，就会调用这个方法* 目的：在这个方法中说明这个对象的哪些属性要存进沙盒*/ - (void)encodeWithCoder:(NSCoder *)encoder {[encoder encodeObject:self.access_token forKey:@"access_token"];[encoder encodeObject:self.expires_in forKey:@"expires_in"];[encoder encodeObject:self.uid forKey:@"uid"];[encoder encodeObject:self.created_time forKey:@"created_time"]; }/*** 当从沙盒中解档一个对象时（从沙盒中加载一个对象时），就会调用这个方法* 目的：在这个方法中说明沙盒中的属性该怎么解析（需要取出哪些属性）*/ - (id)initWithCoder:(NSCoder *)decoder {if (self = [super init]) {self.access_token = [decoder decodeObjectForKey:@"access_token"];self.expires_in = [decoder decodeObjectForKey:@"expires_in"];self.uid = [decoder decodeObjectForKey:@"uid"];self.created_time = [decoder decodeObjectForKey:@"created_time"];}return self; } @end

*********HWAccount.h

#import <Foundation/Foundation.h>@interface HWAccount : NSObject <NSCoding> /**　string 用于调用access_token，接口获取授权后的access token。*/ @property (nonatomic, copy) NSString *access_token;/**　string access_token的生命周期，单位是秒数。*/ @property (nonatomic, copy) NSNumber *expires_in;/**　string 当前授权用户的UID。*/ @property (nonatomic, copy) NSString *uid;/** access token的创建时间 */ @property (nonatomic, strong) NSDate *created_time;+ (instancetype)accountWithDict:(NSDictionary *)dict; @end

 **********HWOAuthViewController.m

#import "HWOAuthViewController.h" #import "AFNetworking.h" #import "HWAccount.h" #import "HWAccountTool.h" #import "MBProgressHUD+MJ.h"@interface HWOAuthViewController () <UIWebViewDelegate>@end@implementation HWOAuthViewController- (void)viewDidLoad {[super viewDidLoad];// 1.创建一个webViewUIWebView *webView = [[UIWebView alloc] init];webView.frame = self.view.bounds;webView.delegate = self;[self.view addSubview:webView];// 2.用webView加载登录页面（新浪提供的）// 请求地址：https://api.weibo.com/oauth2/authorize/* 请求参数：client_id true string 申请应用时分配的AppKey。redirect_uri true string 授权回调地址，站外应用需与设置的回调地址一致，站内应用需填写canvas page的地址。*/NSURL *url = [NSURL URLWithString:@"https://api.weibo.com/oauth2/authorize?client_id=3235932662&redirect_uri=http://www.baidu.com"];NSURLRequest *request = [NSURLRequest requestWithURL:url];[webView loadRequest:request]; }#pragma mark - webView代理方法 - (void)webViewDidFinishLoad:(UIWebView *)webView {[MBProgressHUD hideHUD]; }- (void)webViewDidStartLoad:(UIWebView *)webView {[MBProgressHUD showMessage:@"正在加载..."]; }- (void)webView:(UIWebView *)webView didFailLoadWithError:(NSError *)error {[MBProgressHUD hideHUD]; }- (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType {// 1.获得urlNSString *url = request.URL.absoluteString;// 2.判断是否为回调地址NSRange range = [url rangeOfString:@"code="];if (range.length != 0) { // 是回调地址// 截取code=后面的参数值int fromIndex = range.location + range.length;NSString *code = [url substringFromIndex:fromIndex];// 利用code换取一个accessToken [self accessTokenWithCode:code];// 禁止加载回调地址return NO;}return YES; }/*** 利用code（授权成功后的request token）换取一个accessToken** @param code 授权成功后的request token*/ - (void)accessTokenWithCode:(NSString *)code { /*URL：https://api.weibo.com/oauth2/access_token请求参数：client_id：申请应用时分配的AppKeyclient_secret：申请应用时分配的AppSecretgrant_type：使用authorization_coderedirect_uri：授权成功后的回调地址code：授权成功后返回的code*/// 1.请求管理者AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager]; // mgr.responseSerializer = [AFJSONResponseSerializer serializer];// AFN的AFJSONResponseSerializer默认不接受text/plain这种类型// 2.拼接请求参数NSMutableDictionary *params = [NSMutableDictionary dictionary];params[@"client_id"] = @"3235932662";params[@"client_secret"] = @"227141af66d895d0dd8baca62f73b700";params[@"grant_type"] = @"authorization_code";params[@"redirect_uri"] = @"http://www.baidu.com";params[@"code"] = code;// 3.发送请求[mgr POST:@"https://api.weibo.com/oauth2/access_token" parameters:params success:^(AFHTTPRequestOperation *operation, NSDictionary *responseObject) {[MBProgressHUD hideHUD];// 将返回的账号字典数据 --> 模型，存进沙盒HWAccount *account = [HWAccount accountWithDict:responseObject];// 存储账号信息 [HWAccountTool saveAccount:account];// 切换窗口的根控制器UIWindow *window = [UIApplication sharedApplication].keyWindow;[window switchRootViewController];// UIWindow的分类、HWWindowTool// UIViewController的分类、HWControllerTool} failure:^(AFHTTPRequestOperation *operation, NSError *error) {[MBProgressHUD hideHUD];HWLog(@"请求失败-%@", error);}]; } @end

UIWindow+Extension.m

#import "UIWindow+Extension.h" #import "HWTabBarViewController.h" #import "HWNewfeatureViewController.h"@implementation UIWindow (Extension) - (void)switchRootViewController {NSString *key = @"CFBundleVersion";// 上一次的使用版本（存储在沙盒中的版本号）NSString *lastVersion = [[NSUserDefaults standardUserDefaults] objectForKey:key];// 当前软件的版本号（从Info.plist中获得）NSString *currentVersion = [NSBundle mainBundle].infoDictionary[key];if ([currentVersion isEqualToString:lastVersion]) { // 版本号相同：这次打开和上次打开的是同一个版本self.rootViewController = [[HWTabBarViewController alloc] init];} else { // 这次打开的版本和上一次不一样，显示新特性self.rootViewController = [[HWNewfeatureViewController alloc] init];// 将当前的版本号存进沙盒 [[NSUserDefaults standardUserDefaults] setObject:currentVersion forKey:key];[[NSUserDefaults standardUserDefaults] synchronize];} } @end

 ************HWHomeViewController.m

#import "HWHomeViewController.h" #import "HWDropdownMenu.h" #import "HWTitleMenuViewController.h" #import "AFNetworking.h" #import "HWAccountTool.h" #import "HWTitleButton.h" #import "UIImageView+WebCache.h" #import "HWUser.h" #import "HWStatus.h" #import "MJExtension.h" // 第三方的框架@interface HWHomeViewController () <HWDropdownMenuDelegate> /*** 微博数组（里面放的都是HWStatus模型，一个HWStatus对象就代表一条微博）*/ @property (nonatomic, strong) NSMutableArray *statuses; @end@implementation HWHomeViewController- (NSMutableArray *)statuses {if (!_statuses) {self.statuses = [NSMutableArray array];}return _statuses; }- (void)viewDidLoad {[super viewDidLoad];// 设置导航栏内容 [self setupNav];// 获得用户信息（昵称） [self setupUserInfo];// 集成刷新控件 [self setupRefresh]; }/*** 3. 集成刷新控件*/ - (void)setupRefresh {UIRefreshControl *control = [[UIRefreshControl alloc] init];[control addTarget:self action:@selector(refreshStateChange:) forControlEvents:UIControlEventValueChanged];[self.tableView addSubview:control]; }/*** 3-1 UIRefreshControl进入刷新状态：加载最新的数据*/ - (void)refreshStateChange:(UIRefreshControl *)control {// 1.请求管理者AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];// 2.拼接请求参数HWAccount *account = [HWAccountTool account];NSMutableDictionary *params = [NSMutableDictionary dictionary];params[@"access_token"] = account.access_token;// 取出最前面的微博（最新的微博，ID最大的微博）HWStatus *firstStatus = [self.statuses firstObject];if (firstStatus) {// 若指定此参数，则返回ID比since_id大的微博（即比since_id时间晚的微博），默认为0params[@"since_id"] = firstStatus.idstr;}// 3.发送请求[mgr GET:@"https://api.weibo.com/2/statuses/friends_timeline.json" parameters:params success:^(AFHTTPRequestOperation *operation, NSDictionary *responseObject) {// 将 "微博字典"数组 转为 "微博模型"数组NSArray *newStatuses = [HWStatus objectArrayWithKeyValuesArray:responseObject[@"statuses"]]; //第三方的框架// 将最新的微博数据，添加到总数组的最前面NSRange range = NSMakeRange(0, newStatuses.count);NSIndexSet *set = [NSIndexSet indexSetWithIndexesInRange:range];[self.statuses insertObjects:newStatuses atIndexes:set];// 刷新表格 [self.tableView reloadData];// 结束刷新刷新 [control endRefreshing];} failure:^(AFHTTPRequestOperation *operation, NSError *error) {HWLog(@"请求失败-%@", error);// 结束刷新刷新 [control endRefreshing];}]; }/*** 2. 获得用户信息（昵称）*/ - (void)setupUserInfo {// 1.请求管理者AFHTTPRequestOperationManager *mgr = [AFHTTPRequestOperationManager manager];// 2.拼接请求参数HWAccount *account = [HWAccountTool account];NSMutableDictionary *params = [NSMutableDictionary dictionary];params[@"access_token"] = account.access_token;params[@"uid"] = account.uid;// 3.发送请求[mgr GET:@"https://api.weibo.com/2/users/show.json" parameters:params success:^(AFHTTPRequestOperation *operation, NSDictionary *responseObject) {// 标题按钮UIButton *titleButton = (UIButton *)self.navigationItem.titleView;// 设置名字HWUser *user = [HWUser objectWithKeyValues:responseObject];[titleButton setTitle:user.name forState:UIControlStateNormal];// 存储昵称到沙盒中account.name = user.name;[HWAccountTool saveAccount:account];} failure:^(AFHTTPRequestOperation *operation, NSError *error) {HWLog(@"请求失败-%@", error);}]; }/*** 1. 设置导航栏内容*/ - (void)setupNav {/* 设置导航栏上面的内容 */self.navigationItem.leftBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(friendSearch) image:@"navigationbar_friendsearch" highImage:@"navigationbar_friendsearch_highlighted"];self.navigationItem.rightBarButtonItem = [UIBarButtonItem itemWithTarget:self action:@selector(pop) image:@"navigationbar_pop" highImage:@"navigationbar_pop_highlighted"];/* 中间的标题按钮 */HWTitleButton *titleButton = [[HWTitleButton alloc] init];// 设置图片和文字NSString *name = [HWAccountTool account].name;[titleButton setTitle:name?name:@"首页" forState:UIControlStateNormal];// 监听标题点击 [titleButton addTarget:self action:@selector(titleClick:) forControlEvents:UIControlEventTouchUpInside];self.navigationItem.titleView = titleButton; }/*** 1-1 标题点击*/ - (void)titleClick:(UIButton *)titleButton {// 1.创建下拉菜单HWDropdownMenu *menu = [HWDropdownMenu menu];menu.delegate = self;// 2.设置内容HWTitleMenuViewController *vc = [[HWTitleMenuViewController alloc] init];vc.view.height = 150;vc.view.width = 150;menu.contentController = vc;// 3.显示 [menu showFrom:titleButton]; }- (void)friendSearch {NSLog(@"friendSearch"); }- (void)pop {NSLog(@"pop"); }#pragma mark - HWDropdownMenuDelegate /*** 下拉菜单被销毁了*/ - (void)dropdownMenuDidDismiss:(HWDropdownMenu *)menu {UIButton *titleButton = (UIButton *)self.navigationItem.titleView;// 让箭头向下titleButton.selected = NO; }/*** 下拉菜单显示了*/ - (void)dropdownMenuDidShow:(HWDropdownMenu *)menu {UIButton *titleButton = (UIButton *)self.navigationItem.titleView;// 让箭头向上titleButton.selected = YES; }#pragma mark - Table view data source - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {return self.statuses.count; }- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {static NSString *ID = @"status";UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:ID];if (!cell) {cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:ID];}// 取出这行对应的微博字典HWStatus *status = self.statuses[indexPath.row];// 取出这条微博的作者（用户）HWUser *user = status.user;cell.textLabel.text = user.name;// 设置微博的文字cell.detailTextLabel.text = status.text;// 设置头像UIImage *placehoder = [UIImage imageNamed:@"avatar_default_small"];[cell.imageView sd_setImageWithURL:[NSURL URLWithString:user.profile_image_url] placeholderImage:placehoder];return cell; }/**1.将字典转为模型2.能够下拉刷新最新的微博数据3.能够上拉加载更多的微博数据*/ @end

 ***HWTitleButton.h

#import "HWTitleButton.h"@implementation HWTitleButton- (id)initWithFrame:(CGRect)frame {self = [super initWithFrame:frame];if (self) {[self setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];self.titleLabel.font = [UIFont boldSystemFontOfSize:17];[self setImage:[UIImage imageNamed:@"navigationbar_arrow_down"] forState:UIControlStateNormal];[self setImage:[UIImage imageNamed:@"navigationbar_arrow_up"] forState:UIControlStateSelected];}return self; }- (void)layoutSubviews {[super layoutSubviews];// 如果仅仅是调整按钮内部titleLabel和imageView的位置，那么在layoutSubviews中单独设置位置即可// 1.计算titleLabel的frameself.titleLabel.x = self.imageView.x;// 2.计算imageView的frameself.imageView.x = CGRectGetMaxX(self.titleLabel.frame); }- (void)setTitle:(NSString *)title forState:(UIControlState)state {[super setTitle:title forState:state];// 只要修改了文字，就让按钮重新计算自己的尺寸 [self sizeToFit]; }- (void)setImage:(UIImage *)image forState:(UIControlState)state {[super setImage:image forState:state];// 只要修改了图片，就让按钮重新计算自己的尺寸 [self sizeToFit]; } @end #import <UIKit/UIKit.h>@interface HWTitleButton : UIButton@end

  HWStatus.h

#import <Foundation/Foundation.h> @class HWUser;@interface HWStatus : NSObject /** string 字符串型的微博ID*/ @property (nonatomic, copy) NSString *idstr;/** string 微博信息内容*/ @property (nonatomic, copy) NSString *text;/** object 微博作者的用户信息字段 详细*/ @property (nonatomic, strong) HWUser *user; @end

 HWStatus.m

#import "HWStatus.h"@implementation HWStatus @end

 

转载于:https://www.cnblogs.com/ios-g/p/4828212.html

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