1.先拿微信开路。。。。
设置微信的appKey和appSecret
(BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions {
[[UMSocialManager defaultManager] setPlaform:UMSocialPlatformType_WechatSession appKey:KWechatKey appSecret:KWechatAppSecret redirectURL:@"http://mobile.umeng.com/social"];
}
2.applicationDelegate中
- (BOOL)application:(UIApplication *)application openURL:(NSURL *)url sourceApplication:(NSString *)sourceApplication
annotation:(id)annotation {
if([[url absoluteString] hasPrefix:@"wx"]) {
return [WXApi handleOpenURL:url delegate:self];
}
return YES;
}
3.回调
-(void)onResp:(BaseResp*)resp{
if ([resp isKindOfClass:[SendAuthResp class]])
{
SendAuthResp *aresp = (SendAuthResp *)resp;
[[NSNotificationCenter defaultCenter] postNotificationName:WXAUTH_NOTIFICATION object:self userInfo:[NSDictionary dictionaryWithObject:aresp forKey:@"wxAuthReturn"]];
NSString *shareStr = [[NSUserDefaults standardUserDefaults]objectForKey:@"share"];
if (![shareStr isEqual: @"share"] && aresp.errCode == 0)
{
//微信登录成功，调用接口获取进一步的数据
[LoginViewController WeChatLogin:aresp.code];
}
}
}
4.在登录页面中的.h文件添加
+(void)WeChatLogin:(NSString *)code;
5.登录页面中的.m文件
//微信登录
+(void)WeChatLogin:(NSString *)code
{
[self.class getaccess_token:code];
}
+ (void)getaccess_token:(NSString*)code
{
//检查网络
NSError *error = nil;
if (![[Reachability reachabilityForInternetConnection] isReachable]) {
UIAlertView *alertViews = [[UIAlertView alloc] initWithTitle:@"该功能需要连接网络才能使用，请检查您的网络连接状态" message:nil delegate:nil cancelButtonTitle:@"确定" otherButtonTitles:nil];
[alertViews show];
return;
}
NSString *weixinUrl = [NSString stringWithFormat:@"https://api.weixin.qq.com/sns/oauth2/access_token?appid=%@&secret=%@&code=%@&grant_type=authorization_code",KWechatKey,KWechatAppSecret,code];
NSLog(@"weixinUrl=%@",weixinUrl);
NSString *urlString = [weixinUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURLRequest *req = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];
NSData *response = [NSURLConnection sendSynchronousRequest:req returningResponse:nil error:&error];
if (response != nil){
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];
if (dict) {
NSNumber *retcode = [dict objectForKey:@"errcode"];
if ([retcode integerValue] == 0) {
NSLog(@"登录成功 access_token=%@ openid=%@",[dict objectForKey:@"access_token"],[dict objectForKey:@"openid"]);
[self getUserInfo:[dict objectForKey:@"access_token"] openid:[dict objectForKey:@"openid"]];
[[NSUserDefaults standardUserDefaults] setObject:[dict objectForKey:@"access_token"] forKey:@"ACCESS_TOKEN"];
[[NSUserDefaults standardUserDefaults] setObject:[dict objectForKey:@"openid"] forKey:@"OPENID"];
//注意，这里用通知来处理你接下来要做什么，与服务器对接的事件
[[NSNotificationCenter defaultCenter]postNotificationName:@"wxLogData" object:nil];
}
}
}
}
#pragma mark
#pragma mark-- 微信返回数据
+(void)getUserInfo:(NSString*)access_code openid:(NSString*)openid
{
NSError *error = nil;
NSString *weixinUrl = [NSString stringWithFormat:@"https://api.weixin.qq.com/sns/userinfo?access_token=%@&openid=%@",access_code,openid];
NSLog(@"weixinUrl=%@",weixinUrl);
NSString *urlString = [weixinUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];
NSURLRequest *req = [NSURLRequest requestWithURL:[NSURL URLWithString:urlString]];
NSData *response = [NSURLConnection sendSynchronousRequest:req returningResponse:nil error:&error];
if (response != nil)
{
NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:response options:NSJSONReadingMutableLeaves error:&error];
if (dict) {
//NSLog(@"微信返回数据--%@",dict);
NSNumber *retcode = [dict objectForKey:@"errcode"];
if ([retcode integerValue] == 0){
NSLog(@"获取用户信息成功 nickName=%@ headImgUrl=%@",[dict objectForKey:@"nickname"],[dict objectForKey:@"headimgurl"]);
[[NSUserDefaults standardUserDefaults] setObject:[dict objectForKey:@"nickname"] forKey:@"wxNickName"];
[[NSUserDefaults standardUserDefaults] setObject:[dict objectForKey:@"headimgurl"] forKey:@"wxAvatar"];
[[NSUserDefaults standardUserDefaults] setObject:openid forKey:@"wxOpenid"];
}
}
}
}
6.最后在点击微信登录的按钮上添加调起微信的方法就完成了喔
if ([WXApi isWXAppInstalled]) {
SendAuthReq *req = [[SendAuthReq alloc] init];
req.scope = @"snsapi_userinfo";
req.state = @"App";
[WXApi sendReq:req];
}
到此，已经完成 了微信登录了，如果出现错误码，你可以对照微信返回的错误码，上次有人修改了微信的Secret 导致返回错误码结尾是100025什么的，具体不太记得了，拿到正确的secret就可以了
