android - Kotlin : Sign In using google Fails

Question

我在 Android 代码中执行谷歌登录过程时收到以下错误日志。使用 native 按钮而不是谷歌按钮进行登录过程。根据谷歌的文档完成所有内容。谷歌文档链接:

项目 gradle:google()

应用程序 gradle:实现 'com.google.android.gms:play-services-auth:17.0.0'

错误日志:

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.test.myapp/com.google.android.gms.auth.api.signin.internal.SignInHubActivity}: java.lang.IllegalArgumentException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter savedInstanceState
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2974)
    at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3059)
    at android.app.ActivityThread.-wrap11(Unknown Source:0)
    at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1724)
    at android.os.Handler.dispatchMessage(Handler.java:106)
    at android.os.Looper.loop(Looper.java:164)
    at android.app.ActivityThread.main(ActivityThread.java:7000)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:441)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1408)
 Caused by: java.lang.IllegalArgumentException: Parameter specified as non-null is null: method kotlin.jvm.internal.Intrinsics.checkParameterIsNotNull, parameter savedInstanceState
    at com.test.myapp.base.MyApplication$setupActivityListener$1.onActivityCreated(Unknown Source:7)
    at android.app.Application.dispatchActivityCreated(Application.java:221)
    at android.app.Activity.onCreate(Activity.java:1071)
    at androidx.core.app.ComponentActivity.onCreate(ComponentActivity.java:75)
    at androidx.fragment.app.FragmentActivity.onCreate(FragmentActivity.java:335)
    at com.google.android.gms.auth.api.signin.internal.SignInHubActivity.onCreate(Unknown Source:0)
    at android.app.Activity.performCreate(Activity.java:7258)
    at android.app.Activity.performCreate(Activity.java:7249)
    at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1222)
    at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2927)

代码: 创建时:

val gso = GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
        .requestIdToken(getString(R.string.default_web_client_id))
        .requestEmail()
        .build()

    // Configure Google Sign In Initialization
    googleSignInClient = GoogleSignIn.getClient(this, gso)

函数:

   private fun signIn() {
    val signInIntent = googleSignInClient.signInIntent
    startActivityForResult(signInIntent, RC_SIGN_IN)
}
public override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
    super.onActivityResult(requestCode, resultCode, data)

    // Result returned from launching the Intent from GoogleSignInApi.getSignInIntent(...);
    if (requestCode == RC_SIGN_IN) {
        val task = GoogleSignIn.getSignedInAccountFromIntent(data)
        handleSignInResult(task)

    }
}

private fun handleSignInResult(completedTask: Task<GoogleSignInAccount>) {
    try {
        val account = completedTask.getResult(ApiException::class.java)
        Log.e(TAG, "Google sign in success : "+account!!)

    } catch (e: ApiException) {
        Log.e(TAG, "Google sign in failed")
        Log.w(TAG, "signInResult:failed code=" + e.statusCode)
    }

}

MyApplication 类的代码:

 private fun setupActivityListener() {
    registerActivityLifecycleCallbacks(object : Application.ActivityLifecycleCallbacks {
        override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {}
        override fun onActivityStarted(activity: Activity) {}
        override fun onActivityResumed(activity: Activity) {
            activeActivity = activity
        }

        override fun onActivityPaused(activity: Activity) {
            activeActivity = null
        }

        override fun onActivityStopped(activity: Activity) {}
        override fun onActivitySaveInstanceState(activity: Activity, outState: Bundle) {}
        override fun onActivityDestroyed(activity: Activity) {}
    })
}

如何解决？

Answer 1

从崩溃日志看来，您将参数 savedInstanceState 标记为非空，但它可以为空。也许你应该检查 MyApplication 类中的 setupActivityListener 方法。