[iOS微博项目 - 2.4] - 重新安排app启动步骤

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"] = @"";
     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