iOS|iOS - 关于第三方登录的那些事(微信、QQ、新浪微博) iOS-关于第三方登录的那些事

一.微信实现三方登录前面一些基本的配置我这里就不赘述了，不太明白的可以去看我的关于微信分享的那篇文章，里面有比较详细的撸代码之前的前期准备工作。
1.向微信注册

// WXAPPID:在微信开放平台注册应用时分配的AppID [WXApi registerApp:WXAPPID];

2.处理open url

- (BOOL)application:(UIApplication *)application openURL:(nonnull NSURL *)url options:(nonnull NSDictionary *)options { // 设置了代理为Appdelegate return [WXApi handleOpenURL:url delegate:self]; }

3.微信登录

- (void)weixinLoginButtonClick { // 先判断是否安装微信客户端 if ([WXApi isWXAppInstalled]) { SendAuthReq *req = [[SendAuthReq alloc] init]; req.scope = @"snsapi_userinfo"; req.state = @"App"; [WXApi sendReq:req]; } else { [self showAlertWithTitle:@"提示" message:@"请先下载微信客户端"]; } }

文章图片
微信登录.png

文章图片
微信授权.png 4.微信相关的回调
上面的方法执行过后就会执行如下的回调方法

- (void)onReq:(BaseReq *)req { JRLog(@"调用sendResp方法后，收到来自微信的请求，发送相应的结果给微信"); }- (void)onResp:(BaseResp *)resp { if([resp isKindOfClass:[SendMessageToWXResp class]]) { NSLog(@"微信分享相关的回调"); }else if ([resp isKindOfClass:[SendAuthResp class]]) { SendAuthResp *temp = (SendAuthResp*)resp; if (temp.errCode == WXSuccess) { // 微信授权成功 [self getAuthorityWithCode:temp.code]; } } }#pragma mark -- /** WXAPPID:在微信平台注册时的AppID APPSECRET:在微信平台注册应用时获取 */ - (void)getAuthorityWithCode:(NSString *)code { NSString *URL = [NSString stringWithFormat:@"https://api.weixin.qq.com/sns/oauth2/access_token?appid=%@&secret=%@&code=%@&grant_type=authorization_code",WXAPPID,APPSECRET,code]; dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ NSURL *baseURL = [NSURL URLWithString:URL]; NSString *rightURL = [NSString stringWithContentsOfURL:baseURL encoding:NSUTF8StringEncoding error:nil]; NSData *data = [rightURL dataUsingEncoding:NSUTF8StringEncoding]; if (data) { NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; NSString *access_token = [dic objectForSafeKey:@"access_token"]; NSString *openid = [dic objectForSafeKey:@"openid"]; [self wechatLoginByRequestForUserInfoWithAccess:access_token openID:openid]; } }); }/** 获取微信用户信息*/ - (void)wechatLoginByRequestForUserInfoWithAccess:(NSString *)access_token openID:(NSString *)openid { // 获取用户信息 NSString *URL = [NSString stringWithFormat:@"https://api.weixin.qq.com/sns/userinfo?access_token=%@&openid=%@",access_token,openid]; AFHTTPSessionManager *manager = [AFHTTPSessionManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; [manager GET:URL parameters:nil progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id_Nullable responseObject) { NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil]; if (dict != nil) { NSLog(@"dict里面即是获取到得微信的相关信息(头像昵称等)"); } } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) { }]; }

二.QQ实现三方登录

- (void)qqLoginButtonClick { if (![TencentOAuth iphoneQQInstalled]) { [self showAlertWithTitle:@"提示" message:@"请先下载QQ客户端"]; }else { self.tencentOAuth = [[TencentOAuth alloc] initWithAppId:QQAPPID andDelegate:self]; NSArray *permissions= [NSArray arrayWithObjects:@"get_user_info",@"get_simple_userinfo",@"add_t",nil]; [self.tencentOAuth authorize:permissions inSafari:NO]; } }

文章图片
QQ登录授权.png

#pragma mark --TencentLoginDelegate /** * 登录成功后的回调 */ - (void)tencentDidLogin { NSLog(@"QQ登录成功 - %@",self.tencentOAuth.openId); }/** * 登录失败后的回调 * \param cancelled 代表用户是否主动退出登录 */ - (void)tencentDidNotLogin:(BOOL)cancelled { if (!cancelled) { [self showAlertWithTitle:@"提示" message:@"QQ登录失败"]; } }/** * 登录时网络有问题的回调 */ - (void)tencentDidNotNetWork { [self showAlertWithTitle:@"提示" message:@"登录时网络出现错误"]; }/** * 退出登录的回调 */ - (void)tencentDidLogout { NSLog(@"退出登录"); }

三.新浪微博实现三方登录 1.新浪微博按钮点击

- (void)weiboLoginButtonClick { if (![WeiboSDK isWeiboAppInstalled]) { [self showAlertWithTitle:@"提示" message:@"请先安装新浪微博客户端"]; }else { // 授权页面(授权页面是微博提供的我们只需要用网页来加载它即可) JROAuthorViewController *oauthVc = [[JROAuthorViewController alloc] init]; [self.navigationController pushViewController:oauthVc animated:YES]; } }

【iOS|iOS - 关于第三方登录的那些事(微信、QQ、新浪微博)】2.授权页面的实现

文章图片
新浪微博1.png

- (void)viewDidLoad { [super viewDidLoad]; UIWebView *webView = [[UIWebView alloc] initWithFrame:CGRectMake(0, 64, [UIDevice screenWidth], [UIDevice screenHeight])]; webView.delegate = self; [self.view addSubview:webView]; self.navigationTitleLabel.text = @"新浪微博授权"; // 2.用webView加载授权页面 NSString *urlStr = [NSString stringWithFormat:@"https://api.weibo.com/oauth2/authorize?client_id=%@&redirect_uri=%@",WBAPPID,@"http://sns.whalecloud.com/sina2/callback"]; NSURL *url = [NSURL URLWithString:urlStr]; NSURLRequest *request = [NSURLRequest requestWithURL:url]; [webView loadRequest:request]; }#pragma mark - UIWebViewDelegate - (BOOL)webView:(UIWebView *)webView shouldStartLoadWithRequest:(NSURLRequest *)request navigationType:(UIWebViewNavigationType)navigationType { NSString *url = request.URL.absoluteString; // 1.是否为回调地址 NSRange range = [url rangeOfString:@"code="]; if (range.length != 0) { // 2.截取code=后面的参数值 NSInteger fromIndex = range.location + range.length; NSString *code = [url substringFromIndex:fromIndex]; // 3.利用code换取一个accessToken [self accessTokenWithCode:code]; } return YES; }

文章图片
新浪微博2.png

/** *利用授权成功后的request token换取一个accessToken */ - (void)accessTokenWithCode:(NSString *)code { // 1.请求管理者 AFHTTPSessionManager *manager =[AFHTTPSessionManager manager]; manager.responseSerializer = [AFHTTPResponseSerializer serializer]; // 2.拼接请求参数 NSMutableDictionary *params = [NSMutableDictionary dictionary]; params[@"client_id"] = WBAPPID; params[@"client_secret"] = WBSECRT; params[@"grant_type"] = @"authorization_code"; params[@"redirect_uri"] = @"http://sns.whalecloud.com/sina2/callback"; params[@"code"] = code; // 3.发送请求 [manager POST:@"https://api.weibo.com/oauth2/access_token" parameters:params progress:nil success:^(NSURLSessionDataTask * _Nonnull task, id_Nullable responseObject) { NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableLeaves error:nil]; if (dict != nil) { NSLog(@"获取access_token成功"); } } failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {}]; }