ios使用微信登录sdk可以拉起微信但是闪一下就退了，无法正确获取授权页面该怎么办？ - WXOPEN Club

环境描述：系统IOS 12.4 ，微信版本 7.0.8， SDK 1.8.6,

错误日志：

Error:set token fail, errCode:4, errLog:wx token[] or contextId[(null)] is nil

状态描述：可以看到有跳转微信的过程，但是不能正确获取微信授权界面。但是又能拿到相应的返回值，很奇怪，有人遇到过嘛？

相关代码：

//三个重写的API

func application(_ app: UIApplication, open url: URL, options: [UIApplication.OpenURLOptionsKey : Any] = [:]) -> Bool {

returnWXApi.handleOpen(url, delegate: self)

// func application(_ application: UIApplication, open url: URL, sourceApplication: String?, annotation: Any) -> Bool {

// return WXApi.handleOpen(url, delegate: self)

// }

func application(_application: UIApplication, handleOpen url: URL) -> Bool{

returnWXApi.handleOpen(url, delegate: self)

func application(_ application: UIApplication, continueuserActivity: NSUserActivity, restorationHandler: @escaping ([UIUserActivityRestoring]?) -> Void) -> Bool {

logger.info(“调用useractivity”

returnWXApi.handleOpenUniversalLink(userActivity, delegate: self)

//回调

func onResp(_ resp: BaseResp) {

logger.info(String(format: “返回的resp是：%p”, resp))

//微信登录

ifresp is SendAuthResp {

logger.info(“微信登录接口”

// switch(resp.errCode){

// case 0:

// let response = resp as! SendAuthResp

// NotificationCenter.default.post(name: NSNotification.Name(rawValue: “WXLoginSuccessNotification”), object: response.code)

// break

// case -4: //用户拒绝

// NotificationCenter.default.post(name: NSNotification.Name(rawValue: “WXLoginDenyNotification”), object: nil)

// break

// case -2: //用户取消

// NotificationCenter.default.post(name: NSNotification.Name(rawValue: “WXLoginCancelNotification”), object: nil)

// break

// default:

// break

// }

ifresp.errCode == 0 && resp.type == 0 {//授权成功

let response = resp as! SendAuthResp

NotificationCenter.default.post(name: NSNotification.Name(rawValue: “WXLoginSuccessNotification”), object: response.code)

// end of internal if

return

// end of external if

// end of onResp

// send

@IBAction func wechatLogin(_ sender: LGButton) {

sender.isLoading = true

ifWXApi.isWXAppInstalled() {

let app = UIApplication.shared

ifapp.canOpenURL(URL.init(string: WEIXIN_SCHEME)!) {

let req = SendAuthReq.init()

req.scope = “snsapi_message,snsapi_userinfo,snsapi_friend,snsapi_contact”

req.state = “\(arc4random()%100)”

logger.info(“准备开启微信登录!”

let deadlineTime = DispatchTime.now() + .seconds(1)

DispatchQueue.main.asyncAfter(deadline: deadlineTime) {

//停止转圈圈

WXApi.send(req, completion: { (success) in

sender.isLoading = false

logger.info(“成功获取微信app的授权，开始向微信服务器发起请求!”

})}

} else

if#available(iOS 10.0, *) {

UIApplication.shared.open(URL.init(string: “http://weixin.qq.com/r/qUQVDfDEVK0rrbRu9xG7”)!, options: [:], completionHandler: nil)

} else

// Fallback on earlier versions

UIApplication.shared.openURL(URL.init(string: “http://weixin.qq.com/r/qUQVDfDEVK0rrbRu9xG7”)!)

else

self.sendmsgToWxServer()

sender.isLoading = false

// 登录成功之后

@objc func WXLoginSuccess(notification:Notification) {

logger.info(“WXLoginSuccess开始执行”

let code = notification.object as! String

let requestUrl = “https://api.weixin.qq.com/sns/oauth2/access_token?appid=\(WX_APPID)&secret=\(WX_APPSecret)&code=\(code)&grant_type=authorization_code”

DispatchQueue.global().async {

let requestURL: URL = URL.init(string: requestUrl)!

let data = try? Data.init(contentsOf: requestURL, options: Data.ReadingOptions())

//TODO：从微信获取到的用户信息，然后再回传到app的后台服务器

DispatchQueue.main.async {

let jsonResult = try! JSONSerialization.jsonObject(with: data!, options: JSONSerialization.ReadingOptions.mutableContainers) as! Dictionary<String,Any>

logger.info(“微信app传回来的数据: \(jsonResult)”

let openid: String = jsonResult[“openid”] as! String

let access_token: String = jsonResult[“access_token”] as! String

let unionid: String = jsonResult[“unionid”] as! String

self.openid = openid

//向app服务器保存用户的openid和access_token

let parameters: Parameters = [“openId”: openid, “accessToken”: access_token]

AF.request(SAVE_USER_INFO_URL_STR, parameters: parameters).validate()

let homeVcUrlStr = String(format: “%@%@”, arguments: [HOMEPAGE_LOGINED_URL_STR, unionid])

logger.info(String(format:“homeStr: %@, openid: %@”, arguments:[homeVcUrlStr, openid]))

let mainNavigationController = self.presentingViewController as! LFMainNavigationController

let homePageController = mainNavigationController.viewControllers[0] as! LFHomeViewController