com.google.android.gms.common.api.ApiException: 16:

Question

I try to learn how i can use google sign in in my android App, but i catch com.google.android.gms.common.api.ApiException: 16 And i can't find on stackoveflow answer, what is it and why i catch it. In documentation i read, what it "was canceled by user", but my google account accepted to install apps

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import com.google.android.gms.auth.api.signin.GoogleSignIn
import com.google.android.gms.auth.api.signin.GoogleSignInOptions
import com.google.android.gms.auth.api.signin.GoogleSignInAccount
import android.content.Intent
import com.google.android.gms.tasks.Task
import com.google.android.gms.common.api.ApiException

class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        val gso = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                .requestEmail()
                .build()

        val mGoogleSignInClient = GoogleSignIn.getClient(this, gso)
        val account = GoogleSignIn.getLastSignedInAccount(this)
        if(account != null){
            Log.e("!!!", account.email)
        } else {
            val signInIntent = mGoogleSignInClient.signInIntent
            startActivityForResult(signInIntent, 0)
        }
    }

    public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)

        // Result returned from launching the Intent from GoogleSignInClient.getSignInIntent(...);
        if (requestCode == 0) {
            // The Task returned from this call is always completed, no need to attach
            // a listener.
            val task = GoogleSignIn.getSignedInAccountFromIntent(data)
            handleSignInResult(task)
        }
    }

    private fun handleSignInResult(completedTask: Task<GoogleSignInAccount>) {
        try {
            val account = completedTask.getResult(ApiException::class.java)

            // Signed in successfully, show authenticated UI.
            Log.e("!!!", account.email)
        } catch (e: ApiException) {
            e.printStackTrace()
        }

    }

}

I followed this guide . Did the configuration of the project. If it's matter, i use VDS for this. Account was created in the same place

Here is stackTrace:

com.google.android.gms.common.api.ApiException: 16: 
    at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(Unknown Source)
    at com.google.android.gms.auth.api.signin.GoogleSignIn.getSignedInAccountFromIntent(Unknown Source)
    at foryou.friendly.alisa.alisa.MainActivity.onActivityResult(MainActivity.kt:47)
    at android.app.Activity.dispatchActivityResult(Activity.java:7124)
    at android.app.ActivityThread.deliverResults(ActivityThread.java:4173)
    at android.app.ActivityThread.handleSendResult(ActivityThread.java:4220)
    at android.app.ActivityThread.-wrap20(ActivityThread.java)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1579)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:163)
    at android.app.ActivityThread.main(ActivityThread.java:6228)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:794)

Answer 1

I had the same problem, start activity result kept coming back with RESULT_CANCELED and errorCode 16. The problem was my client configuration in Google Cloud Platform Console. I was using the regular debug and release api key. The result came back OK when I used web application as my Google Console configuration.

Hope it helps.

Answer 2

Was having the same problem, turns out I did not set support mail on firebase project settings .

If this is the case, firebase will show you edit project settings when trying to enable Google sign in on Firebase Authentication . You can copy your client Id from firebase

Answer 3

Maybe a bit late to the party here but after more than 4 hours debugging I realized that:

1.- Add an Android client with your signing-certificates fingerprints under the OAuth client IDs list. This is mandatory.

2.- Add the Web application client ID in your code in case your need to get an id token

// ID and basic profile are included in DEFAULT_SIGN_IN
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
                            .requestIdToken("YOUR_CLIENT_ID")
                            .requestEmail()
                            .build();

Hope it helps

Answer 4

For me the only thing that worked was to provide 2 oauth client ids . a web application client id AND an android client id

In my android app i use the client id and client secret of the web application. Even though i don't use the android client id anywhere in my app it is still required. ie if i delete the oauth android client in the google api console my app stops working EVEN THOUGH i dont use that client id ANYWHERE in my app.

this makes absolutely no sense to me! go figure . but so far this is the only thing that has worked.

un-freaking-believable.

Answer 5

I am developing an Android application using Flutter, tried to integrate Google Sign In and faced the same problem with ApiException: 16 and SIGN_IN_FAILED (instead of RESULT_CANCELED).

Application type on Firebase was set to android.

In my case, after many hours of debugging, it turned out to be a wrong SHA-1 problem .

As soon as I extracted the SHA-1 key from my project and updated Firebase console, it worked.

Answer 6

我使用了一个不同的 oauth id 密钥，这是我从下载项目设置中找到的，并在项目中添加了客户端 3 密钥。