1.下载sdk并作对应的配置；
2.在AppDelegate文件里，- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions方法下添加以下代码：
[WXApi registerApp:WXAppId withDescription:@"wechat"];
3.- (BOOL)application:(UIApplication *)application handleOpenURL:(NSURL *)url{ return [WXApi handleOpenURL:url delegate:self] || [UMSocialSnsService handleOpenURL:url]; }-(BOOL)application:(UIApplication*)app openURL:(NSURL*)url options:(NSDictionary*)options
{
return [WXApi handleOpenURL:url delegate:self] ;
}
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication annotation:(id)annotation
{
[WXApi handleOpenURL:url delegate:self];
}
- (void)onResp:(BaseResp *)resp
{
if ([resp isKindOfClass:[SendAuthResp class]])
{
if (resp.errCode == 0)
{ //成功。
NSLog(@"error %d",resp.errCode);
// 这里处理回调的方法 。 通过代理吧对应的登录消息传送过去。
if ([_wxDelegate respondsToSelector:@selector(loginSuccessByCode:)])
{
SendAuthResp *resp2 = (SendAuthResp *)resp;
[_wxDelegate loginSuccessByCode:resp2.code];
}
}else{ //失败
NSLog(@"error %@",resp.errStr);
UIAlertView *alert = [[UIAlertView alloc]initWithTitle:@"登录失败" message:[NSString stringWithFormat:@"reason : %@",resp.errStr] delegate:self cancelButtonTitle:@"取消" otherButtonTitles:@"确定", nil];
[alert show];
}
}
}
4.在登录界面点击微信登录的地方（要设置代理）
#import
@protocol wxPassDelegate
-(void)loginSuccessByCode:(NSString *)code;
@end
if ([WXApi isWXAppInstalled]) {
SendAuthReq *req = [[SendAuthReq alloc]init];
req.scope = @"snsapi_userinfo";
req.openID = @"wx5f427e47a3d32261";
req.state = @"1245";
appdelegate = (AppDelegate *)[[UIApplication sharedApplication] delegate];
appdelegate.wxDelegate = self;
[WXApi sendReq:req];
}
#pragma mark 微信登录回调。
-(void)loginSuccessByCode:(NSString *)code{
NSLog(@"code %@",code);
__weak typeof(*&self) weakSelf = self;
AFHTTPSessionManager *manager = [AFHTTPSessionManager manager];
manager.requestSerializer = [AFJSONRequestSerializer serializer];//请求
manager.responseSerializer = [AFHTTPResponseSerializer serializer];//响应
manager.responseSerializer.acceptableContentTypes = [NSSet setWithObjects:@"text/html",@"application/json", @"text/json",@"text/plain", nil, nil];
//通过 appid secret 认证code . 来发送获取 access_token的请求
[manager GET:[NSString stringWithFormat:@"https://api.weixin.qq.com/sns/oauth2/access_token?appid=%@&secret=%@&code=%@&grant_type=authorization_code",@"wx5f427e47a3d32261",@"5accc360949a8fb810b29f00c20741d0",code] parameters:nil progress:^(NSProgress * _Nonnull downloadProgress) {
} success:^(NSURLSessionDataTask * _Nonnull task, id _Nullable responseObject) { //获得access_token，然后根据access_token获取用户信息请求。
NSDictionary *dic = [NSJSONSerialization JSONObjectWithData:responseObject options:NSJSONReadingMutableContainers error:nil];
NSLog(@"dic %@",dic);
[self getWxPersonalInfoWithAccess_token:dic[@"access_token"] withOpenId:dic[@"openid"]];
// [dic setObject:@"" forKey:@"phoneNum"];
// [dic setObject:@"" forKey:@"password"];
} failure:^(NSURLSessionDataTask * _Nullable task, NSError * _Nonnull error) {
NSLog(@"error %@",error.localizedFailureReason);
}];
}