[iOS微博项目

github: https://github.com/hellovoidworld/HVWWeibo

 

A.app启动步骤

1.加入了授权步骤之后，最先要判断app内是否已经登陆了账号

2.在程序启动的时候，先检测是否已有登陆账号

AppDelegate:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
    // Override point for customization after application launch.
   
    // 启动后显示状态栏
    UIApplication *app = [UIApplication sharedApplication];
    app.statusBarHidden = NO;
   
    // 设置window
    self.window = [[UIWindow alloc] init];
    self.window.frame = [UIScreen mainScreen].bounds;
    [self.window makeKeyAndVisible];
   
    // 检查是否已有登陆账号
    NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
    NSString *filePath = [docPath stringByAppendingPathComponent:@"accountInfo.plist"];
    NSDictionary *accountInfo = [NSDictionary dictionaryWithContentsOfFile:filePath];
 
    if (!accountInfo) { // 如果不存在登陆账号，要先进行授权
        self.window.rootViewController = [[HVWOAuthViewController alloc] init];
    } else {
        /** 新版本特性 */
        // app现在的版本
        // 由于使用的时Core Foundation的东西，需要桥接
        NSString *versionKey = (__bridge NSString*) kCFBundleVersionKey;
        NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];
        NSString *currentVersion = [infoDic objectForKey:versionKey];
       
        // 上次使用的版本
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        NSString *lastVersion = [defaults stringForKey:versionKey];
       
        // 如果版本变动了，存储新的版本号并启动新版本特性图
        if (![lastVersion isEqualToString:currentVersion]) {
           
            // 存储
            [defaults setObject:currentVersion forKey:versionKey];
            [defaults synchronize];
           
            // 开启app显示新特性
            HVWNewFeatureViewController *newFeatureVC = [[HVWNewFeatureViewController alloc] init];
            self.window.rootViewController = newFeatureVC;
        } else {
            // 创建根控制器
            HVWTabBarViewController *tabVC = [[HVWTabBarViewController alloc] init];
            self.window.rootViewController = tabVC;
        }
    }
   
    return YES;
}

 

在授权控制器，授权完毕之后也要继续进入app：

//  HVWOAuthViewController.m
/** 根据access_code获取access_token */
- (void) accessTokenWithAccessCode:(NSString *) accessCode {
    // 创建AFN的http操作请求管理者
    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];

    // 参数设置
    NSMutableDictionary *param = [NSMutableDictionary dictionary];
    param[@"client_id"] = @"3942775926";
    param[@"client_secret"] = @"cc577953b2aa3aa8ea220fd15775ea35";
    param[@"grant_type"] = @"authorization_code";
    param[@"code"] = accessCode;
    param[@"redirect_uri"] = @"http://www.cnblogs.com/hellovoidworld/";
   
    // 发送请求
    [manager POST:@"https://api.weibo.com/oauth2/access_token" parameters:param success:^(AFHTTPRequestOperation *operation, NSDictionary *accountInfo) {
        [MBProgressHUD hideHUD];
       
        // 返回的是用户信息字典
        // 存储用户信息，包括access_token到沙盒中
        NSString *docPath = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) lastObject];
        NSString *filePath = [docPath stringByAppendingPathComponent:@"accountInfo.plist"];
        [accountInfo writeToFile:filePath atomically:YES];
       
        /** 新版本特性 */
        // app现在的版本
        // 由于使用的时Core Foundation的东西，需要桥接
        NSString *versionKey = (__bridge NSString*) kCFBundleVersionKey;
        NSDictionary *infoDic = [[NSBundle mainBundle] infoDictionary];
        NSString *currentVersion = [infoDic objectForKey:versionKey];
       
        // 上次使用的版本
        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
        NSString *lastVersion = [defaults stringForKey:versionKey];
       
        UIWindow *window = [UIApplication sharedApplication].keyWindow;
       
        // 如果版本变动了，存储新的版本号并启动新版本特性图
        if (![lastVersion isEqualToString:currentVersion]) {
            // 存储
            [defaults setObject:currentVersion forKey:versionKey];
            [defaults synchronize];
           
            // 开启app显示新特性
            HVWNewFeatureViewController *newFeatureVC = [[HVWNewFeatureViewController alloc] init];
            window.rootViewController = newFeatureVC;
        } else {
            // 创建根控制器
            HVWTabBarViewController *tabVC = [[HVWTabBarViewController alloc] init];
            window.rootViewController = tabVC;
        }
       
    } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
        [MBProgressHUD hideHUD];
        HVWLog(@"请求access_token失败 ----> %@", error);
    }];
  
}

第一次启动：

需要授权+新特性显示