谷歌登录iOS GIDSIgnIn突然失败

Question

I am using GIDSignIn for months and it is working fine previously. User sign in successfully either with Google App or in-app Browser.

Today, I get several reports that users are not able to login, and I confirmed the issue by my own testings.

The GIDSignIn now goes to traditional way, opening the in-app browser to prompt user to sign in (even though with Google App installed). After sign in, it stay at Google.com search engine, and not going back to App anymore.

I wonder if there is something wrong with Google side?

Answer 1

Assuming that you guys didn't find a fix (@neobie: I tried your KLSE Screener app, and also the Trello app), I guess the answer is that it is currently impossible to use Google SignIn on iOS without passing through either the in-app Browser or Safari.

But I sure hope I'm wrong - since I'm trying to do sign-in with Google app as well.

My findings so far:

• Setting allowSignInWithWebView = false and allowsSignInWithBrowser = false doesn't seem to do anything. The webview still pops up.
  • I double-checked the URL Schemes (one containing REVERSED_CLIENT_ID, one containing Bundle ID) - that should not be the problem.
• I'm not sure what Google defines as "a capable Google app" or "suitable Google apps" in the "GIDSignIn class documentation" but I installed Chrome, Google+ and Gmail on my test device, and that doesn't help.
• That same GIDSignIn documentation says that checkGoogleSignInAppInstalled is deprecated - and "always calls back with NO on iOS 9 or above". I don't understand what that means, and can't find any further info on it. But it doesn't sound promising.
• Aside, I also had a lot of trouble with 'native' Facebook Login - and finally found that setting loginBehavior = FBSDKLoginBehaviorSystemAccount there solves it - although I don't fully understand why FBSDKLoginBehaviorNative doesn't work. See this thread. Note that for Facebook, several LSApplicationQueriesSchemes need to be set, but this should not be required for GIDSignIn?

So please, if I'm wrong, I'll be happy to stand corrected - tell me.