在Android应用程序中，谷歌登录弹出窗口不会加载

Question

每当我试图通过启动google登录意图登录时，它都会直接进入onActivityResult，而我没有机会选择帐户。它所做的只是将屏幕变暗，但选择帐户的窗口不会出现。然后登录失败，出现以下异常：

java.lang.ClassNotFoundException: com.google.android.gms.common.api.Scope

和

java.lang.RuntimeException: Canvas: trying to draw too large(256000000bytes) bitmap.

（完整堆栈跟踪：https://pastebin.com/vBZeBLu0)

我使用的所有依赖项都是最新的，我的凭据（oAuth客户端id）都设置正确，我尝试了其他类似问题的解决方案，但没有一个解决了我的问题，我还检查了用户是否完全从设备注销，问题是否一直存在。

这是我的登录活动：

public class Login extends Activity implements GoogleApiClient.OnConnectionFailedListener, GoogleApiClient.ConnectionCallbacks  {                                   

private static final String TAG = "LoginProcess";

SignInButton gsignInButton;
private static final int RC_SIGN_IN = 1;
DatabaseReference mRef;
FirebaseAuth mAuth;
FirebaseAuth.AuthStateListener mAuthListener;
GoogleSignInOptions gso;
GoogleApiClient mGoogleApiClient;


@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.welcomescreenlogin);

    mAuth = FirebaseAuth.getInstance();



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

    mGoogleSignInClient = GoogleSignIn.getClient(this, gso);

    gsignInButton = findViewById(R.id.sib);

    gsignInButton.setColorScheme(SignInButton.COLOR_DARK); // wide button style
    gsignInButton.setOnClickListener(myhandler);


}

View.OnClickListener myhandler = new View.OnClickListener() {
    public void onClick(View v) {
       signIn();
    }

};



public void signIn() {

    Intent signInIntent = mGoogleSignInClient.getSignInIntent();
    startActivityForResult(signInIntent, RC_SIGN_IN);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);

    if (requestCode == RC_SIGN_IN) {
        Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
        try {
            // Google Sign In was successful, authenticate with Firebase
            GoogleSignInAccount account = task.getResult(ApiException.class);
            firebaseAuthWithGoogle(account);
        } catch (ApiException e) {
            // Google Sign In failed, update UI appropriately
            Log.w(TAG, "Google sign in failed", e);  //this is where it always lands.
            Toast.makeText(this, "login failed", Toast.LENGTH_SHORT).show();
            // ...
        }
    }

}

登录活动的完整代码：https://pastebin.com/6Yi7vzD7

Gradle：

apply plugin: 'com.android.application'

android {
    compileSdkVersion 28
    buildToolsVersion '28.0.3'

    defaultConfig {
        applicationId "com.example.sanchez.worldgramproject"
        minSdkVersion 21
        targetSdkVersion 28
        multiDexEnabled true
        versionCode 0
        versionName "0"


    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
        debug {
            debuggable true
        }
    }
}



dependencies {

    compile fileTree(dir: 'libs', include: ['*.jar'])
    api "com.google.android.material:material:1.0.0"

    implementation 'com.github.madrapps:pikolo:1.1.6'
    implementation 'com.google.android.gms:play-services-drive:16.0.0'
    implementation 'com.google.android.material:material:1.1.0-alpha02'
    implementation 'com.github.bumptech.glide:glide:3.8.0'
    implementation'com.firebaseui:firebase-ui-storage:2.3.0'
    implementation 'com.google.firebase:firebase-auth:16.1.0'
    implementation 'com.google.android.gms:play-services-auth:16.0.1'
    implementation 'androidx.appcompat:appcompat:1.0.2'
    implementation 'androidx.cardview:cardview:1.0.0'
    implementation 'androidx.recyclerview:recyclerview:1.0.0'
    implementation 'com.jakewharton:butterknife:8.8.1'
    implementation 'androidx.multidex:multidex:2.0.1'
    implementation 'pl.droidsonroids.gif:android-gif-drawable:1.2.6'
    implementation 'de.hdodenhof:circleimageview:2.2.0'
    implementation 'androidx.legacy:legacy-support-v4:1.0.0'
    implementation 'androidx.exifinterface:exifinterface:1.0.0'
    implementation 'com.google.firebase:firebase-storage:16.0.5'
    implementation 'com.google.android.gms:play-services-maps:16.0.0'
    implementation 'com.google.firebase:firebase-database:16.0.5'
    testImplementation 'junit:junit:4.12'

}


apply plugin: 'com.google.gms.google-services'

我不知道问题的原因是什么，我怎么才能解决这个问题，使帐户选择窗口弹出？

编辑2.1.2019

与上面的ApiExeption不同，我得到了以下错误：

W/LoginProcess: Google sign in failed
    com.google.android.gms.common.api.ApiException: 8: 
        at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(Unknown Source:4)
        at com.google.android.gms.auth.api.signin.GoogleSignIn.getSignedInAccountFromIntent(Unknown Source:8)
        at com.example.sanchez.worldgramproject.Login.onActivityResult(Login.java:162)
        at android.app.Activity.dispatchActivityResult(Activity.java:7548)
        at android.app.ActivityThread.deliverResults(ActivityThread.java:4485)
        at android.app.ActivityThread.handleSendResult(ActivityThread.java:4532)
        at android.app.ActivityThread.-wrap20(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1752)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6938)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:327)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1374)

我相信我设置oAuth（由Firebase自动生成）的方式出了问题

Answer 1

正如所料，这是由于

画布：试图绘制太大（256000000字节）的位图。

您使用的启动器图标也出现在“帐户选择器”对话框中，它阻止对话框弹出
作为一种解决方案，您可以按照Praveen的回答（选项2）让应用程序支持Manifest中的较大图像
但我建议您压缩图像文件，因为account chooser对话框实际上不需要高分辨率图像，而且启动器图标也不需要那么大。看看这个，将启动器图标缩放到那些大小（仅限于您需要的大小），并将它们放在各自的可绘制文件夹中，这样也可以帮助您避免将来出现类似问题。

Answer 2

选项1-确保在Firebase控制台的Firebase身份验证方法中启用Google登录。默认情况下，谷歌登录未启用。

选项2——在你的AndroidManifest中。xml文件，在标签下添加以下行以支持高内存支持，以防Google登录弹出窗口需要更多内存。在本例中，甚至可以在应用程序标记-largeHeap as true~您的启动器映像中使用此命令加载大型映像。

<application
    android:hardwareAccelerated="true"
    android:largeHeap="true" >

选项3——尝试使用Firebase实现Google登录，它应该可以工作。

public class LoginActivity extends AppCompatActivity {

private GoogleSignInClient mGoogleSignInClient;
private FirebaseAuth mAuth;
private int permissions = 0;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    SignInButton authButton = findViewById(R.id.home_auth_button);
    GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken("xxxxxxxxxxxx.apps.googleusercontent.com").requestEmail().build();
    mAuth = FirebaseAuth.getInstance();
    mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
    authButton.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View v) {
            signIn();
        }
    });
}

private void signIn() {
    Intent signInIntent = mGoogleSignInClient.getSignInIntent();
    startActivityForResult(signInIntent, 0);
}

@Override
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    if (requestCode == 0) {
        Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
        try {
            GoogleSignInAccount account = task.getResult(ApiException.class);
            if (account != null) {
                firebaseAuthWithGoogle(account);
            } else{
                Log.w("AUTH", "Account is NULL");
                Toast.makeText(LoginActivity.this, "Sign-in failed, try again later.", Toast.LENGTH_LONG).show();
            }
        } catch (ApiException e) {
            Log.w("AUTH", "Google sign in failed", e);
            Toast.makeText(LoginActivity.this, "Sign-in failed, try again later.", Toast.LENGTH_LONG).show();
        }
    }
}

private void firebaseAuthWithGoogle(GoogleSignInAccount acct) {
    Log.d("AUTH", "firebaseAuthWithGoogle:" + acct.getId());
    AuthCredential credential = GoogleAuthProvider.getCredential(acct.getIdToken(), null);
    mAuth.signInWithCredential(credential)
            .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                @Override
                public void onComplete(@NonNull Task<AuthResult> task) {
                    if (task.isSuccessful()) {
                        Log.d("AUTH", "signInWithCredential:success");
                        startActivity(new Intent(LoginActivity.this, AnotherActivity.class));
                        Toast.makeText(LoginActivity.this, "Sign-in successful!", Toast.LENGTH_LONG).show();
                    } else {
                        Log.w("AUTH", "signInWithCredential:failure", task.getException());
                        Toast.makeText(LoginActivity.this, "Sign-in failed, try again later.", Toast.LENGTH_LONG).show();
                    }
                }
            });
    }
}

注意谷歌的签名。生成器，您需要向生成器传递requestIdToken（“xxxx”）。这是一个URL，您可以在Firebase身份验证选项卡下找到它-

希望这能回答你的问题。