标签：des style http color io os ar strong for
摘要：而今微信已经深入到了每一个手机之中，是每款手机必备的APP，我们最常用的莫过于分享和登录。接下来我们来看看微信登录的相关说明。
微信登录授权开发
1、可以到微信开发平台注册相关的APP，等待审核成功后可获得对应的key和secret，获取成功后需要单独申请开通登录和支付接口，如图所示：
2、和QQ比较类似，需要填写Url Schemes，如demo中的wxd930ea5d5a258f4f ，然后引入相应framework。
3、在AppDelegate中注册和实现授权后的回调函数，代码如下：
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//向微信注册 |
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[WXApi registerApp:kWXAPP_ID withDescription:@"weixin"]; |
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|
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//授权后回调 WXApiDelegate |
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-(void)onResp:(BaseReq *)resp |
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{ |
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/* |
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ErrCode ERR_OK = 0(用户同意) |
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ERR_AUTH_DENIED = -4（用户拒绝授权） |
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ERR_USER_CANCEL = -2（用户取消） |
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code 用户换取access_token的code，仅在ErrCode为0时有效 |
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state 第三方程序发送时用来标识其请求的唯一性的标志，由第三方程序调用sendReq时传入，由微信终端回传，state字符串长度不能超过1K |
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lang 微信客户端当前语言 |
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country 微信用户当前国家信息 |
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*/ |
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SendAuthResp *aresp = (SendAuthResp *)resp; |
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if (aresp.errCode== 0) { |
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NSString *code = aresp.code; |
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NSDictionary *dic = @{@"code":code}; |
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} |
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} |
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|
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//和QQ,新浪并列回调句柄 |
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- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation |
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{ |
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return [TencentOAuth HandleOpenURL:url] || |
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[WeiboSDK handleOpenURL:url delegate:self] || |
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[WXApi handleOpenURL:url delegate:self];; |
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} |
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|
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- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url |
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{ |
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return [TencentOAuth HandleOpenURL:url] || |
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[WeiboSDK handleOpenURL:url delegate:self] || |
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[WXApi handleOpenURL:url delegate:self];; |
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} |
4、第一步：获取code，这个用来获取token
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- (IBAction)weixinLogin:(id)sender |
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{ |
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[self sendAuthRequest]; |
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} |
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|
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-(void)sendAuthRequest |
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{ |
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SendAuthReq* req =[[SendAuthReq alloc ] init]; |
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req.scope = @"snsapi_userinfo,snsapi_base"; |
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req.state = @"0744" ; |
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[WXApi sendReq:req]; |
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} |
这里获取后会调用之前在AppDelegate里面对应的oauthResp回调，获得得到的code。
第二步：带上code获取token
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-(void)getAccess_token |
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{ |
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|
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NSString *url =[NSString stringWithFormat:@"https://api.weixin.qq.com/sns/oauth2/access_token?appid=%@&secret=%@&code=%@&grant_type=authorization_code",kWXAPP_ID,kWXAPP_SECRET,self.wxCode.text]; |
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|
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
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NSURL *zoneUrl = [NSURL URLWithString:url]; |
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NSString *zoneStr = [NSString stringWithContentsOfURL:zoneUrl encoding:NSUTF8StringEncoding error:nil]; |
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NSData *data = [zoneStr dataUsingEncoding:NSUTF8StringEncoding]; |
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dispatch_async(dispatch_get_main_queue(), ^{ |
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if (data) { |
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NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; |
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/* |
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{ |
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"access_token" = "OezXcEiiBSKSxW0eoylIeJDUKD6z6dmr42JANLPjNN7Kaf3e4GZ2OncrCfiKnGWiusJMZwzQU8kXcnT1hNs_ykAFDfDEuNp6waj-bDdepEzooL_k1vb7EQzhP8plTbD0AgR8zCRi1It3eNS7yRyd5A"; |
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"expires_in" = 7200; |
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openid = oyAaTjsDx7pl4Q42O3sDzDtA7gZs; |
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"refresh_token" = "OezXcEiiBSKSxW0eoylIeJDUKD6z6dmr42JANLPjNN7Kaf3e4GZ2OncrCfiKnGWi2ZzH_XfVVxZbmha9oSFnKAhFsS0iyARkXCa7zPu4MqVRdwyb8J16V8cWw7oNIff0l-5F-4-GJwD8MopmjHXKiA"; |
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scope = "snsapi_userinfo,snsapi_base"; |
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} |
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*/ |
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|
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self.access_token.text = [dic objectForKey:@"access_token"]; |
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self.openid.text = [dic objectForKey:@"openid"]; |
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|
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} |
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}); |
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}); |
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} |
利用GCD来获取对应的token和openID。
第三步：根据第二步获取的token和openid获取用户的相关信息。
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-(void)getUserInfo |
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{ |
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|
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NSString *url =[NSString stringWithFormat:@"https://api.weixin.qq.com/sns/userinfo?access_token=%@&openid=%@",self.access_token.text,self.openid.text]; |
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|
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dispatch_async(dispatch_get_global_queue(DISPATCH_QUEUE_PRIORITY_DEFAULT, 0), ^{ |
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NSURL *zoneUrl = [NSURL URLWithString:url]; |
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NSString *zoneStr = [NSString stringWithContentsOfURL:zoneUrl encoding:NSUTF8StringEncoding error:nil]; |
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NSData *data = [zoneStr dataUsingEncoding:NSUTF8StringEncoding]; |
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dispatch_async(dispatch_get_main_queue(), ^{ |
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if (data) { |
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NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableContainers error:nil]; |
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/* |
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{ |
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city = Haidian; |
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country = CN; |
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headimgurl = "http://wx.qlogo.cn/mmopen/FrdAUicrPIibcpGzxuD0kjfnvc2klwzQ62a1brlWq1sjNfWREia6W8Cf8kNCbErowsSUcGSIltXTqrhQgPEibYakpl5EokGMibMPU/0"; |
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language = "zh_CN"; |
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nickname = "xxx"; |
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openid = oyAaTjsDx7pl4xxxxxxx; |
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privilege = ( |
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); |
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province = Beijing; |
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sex = 1; |
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unionid = oyAaTjsxxxxxxQ42O3xxxxxxs; |
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} |
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*/ |
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|
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self.nickname.text = [dic objectForKey:@"nickname"]; |
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self.wxHeadImg.image = [UIImage imageWithData:[NSData dataWithContentsOfURL:[NSURL URLWithString:[dic objectForKey:@"headimgurl"]]]]; |
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|
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} |
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}); |
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|
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}); |
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} |
执行到这一步就算完成了整个授权登录的功能，可以把你的昵称、头像显示出来，剩下的就是及时刷新你的token了。
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标签：des style http color io os ar strong for
原文地址：http://www.cnblogs.com/colin2014/p/4000156.html
