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android - 使用 GoogleApiClient 静默登录以检索 token

转载 作者:IT王子 更新时间:2023-10-28 23:29:27 24 4
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我在我的应用中使用“Google 登录”。因此,我使用类 GoogleApiClient 来获取后端所需的用户电子邮件和 ID token 。

当用户登录时,我可以访问一个 Activity(当然),我使用该 Activity 让 GoogleApiClient 通过调用来处理 UI 生命周期的东西builder.enableAutoManage(myActivity, ...)

这很好用。

但是,在稍后的阶段(几天后),我需要获得一个新的 token (出于某种原因,我在此不再赘述)。我想得到这个 token 静默,无需用户交互。但是,在我需要这个新 token 的代码中,我无法访问任何 Activity 实例。这意味着我无法调用上述电话,即“builder.enableAutoManage”。而且我发现如果我不打那个电话,那么静默登录似乎不起作用。

我附上了下面的代码。现在,看看“silentLogin”方法。只要我在用户实际登录时收到的 token 小于一小时,那么语句“pendingResult.isDone”将返回 true,并且可以接收缓存的 token 。但是,如果我在用户实际登录时收到的 token 超过一小时,则调用“pendingResult.setResultCallback”,但从未调用过“onResult”方法,我无法获得新的 token 。如果我从一个 Activity 中执行完全相同的操作(并且由此也调用“builder.enableAutoManage”),则不会发生此问题。

那么,有谁知道我做错了什么,更重要的是 - 如何解决这个问题并在不访问 Activity 实例的情况下获取新 token ?

我正在使用 com.google.android.gms:play-services-auth:8.4.0

package com.google.samples.quickstart.signin;

import android.content.Context;
import android.os.Bundle;
import android.util.Log;

import com.google.android.gms.auth.api.Auth;
import com.google.android.gms.auth.api.signin.GoogleSignInAccount;
import com.google.android.gms.auth.api.signin.GoogleSignInOptions;
import com.google.android.gms.auth.api.signin.GoogleSignInResult;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.Scopes;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.OptionalPendingResult;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Scope;

/**
* Use this class to login with google account using the OpenId oauth method.
*/
public class GoogleLoginStackOverflow {
private static final String TAG = GoogleLoginIdToken.class.getName();
private static final String SERVER_CLIENT_ID = "XXXXXXXXXXXXXXXXXXXXXXXX.apps.googleusercontent.com";

private GoogleApiClient mGoogleApiClient;
private Context mContext;

private GoogleLoginStackOverflow(Context appContext) {
this.mContext = appContext;
createGoogleClient();
}

/**
* Performs a silent sign in and fetch a token.
*
* @param appContext Application context
*/
public static void silentLogin(Context appContext) {
GoogleLoginStackOverflow googleLoginIdToken = new GoogleLoginStackOverflow(appContext);
googleLoginIdToken.silentLogin();
}

private void createGoogleClient() {
GoogleSignInOptions gso = new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestProfile()
.requestScopes(new Scope(Scopes.PROFILE))
.requestIdToken(SERVER_CLIENT_ID)
.requestEmail()
.build();

mGoogleApiClient = new GoogleApiClient.Builder(mContext)
.addOnConnectionFailedListener(new GoogleApiClient.OnConnectionFailedListener() {
@Override
public void onConnectionFailed(ConnectionResult connectionResult) {
System.out.println("onConnectionFailed = " + connectionResult);
onSilentLoginFinished(null);
}
})
.addConnectionCallbacks(new GoogleApiClient.ConnectionCallbacks() {
@Override
public void onConnected(Bundle bundle) {
System.out.println("onConnected bundle = " + bundle);
onSilentLoginFinished(null);
}

@Override
public void onConnectionSuspended(int i) {
System.out.println("onConnectionSuspended i = " + i);
onSilentLoginFinished(null);
}
}).addApi(Auth.GOOGLE_SIGN_IN_API, gso)
.build();
}

private void silentLogin() {
OptionalPendingResult<GoogleSignInResult> pendingResult = Auth.GoogleSignInApi.silentSignIn(mGoogleApiClient);
if (pendingResult != null) {
if (pendingResult.isDone()) {
// If the user's cached credentials are valid, the OptionalPendingResult will be "done"
// and the GoogleSignInResult will be available instantly.
Log.d(TAG, " ---------------- CACHED SIGN-IN ------------");
System.out.println("pendingResult is done = ");
GoogleSignInResult signInResult = pendingResult.get();
onSilentLoginFinished(signInResult);
} else {
System.out.println("Setting result callback");
// If the user has not previously signed in on this device or the sign-in has expired,
// this asynchronous branch will attempt to sign in the user silently. Cross-device
// single sign-on will occur in this branch.
pendingResult.setResultCallback(new ResultCallback<GoogleSignInResult>() {
@Override
public void onResult(GoogleSignInResult googleSignInResult) {
System.out.println("googleSignInResult = " + googleSignInResult);
onSilentLoginFinished(googleSignInResult);
}
});
}
} else {
onSilentLoginFinished(null);
}
}

private void onSilentLoginFinished(GoogleSignInResult signInResult) {
System.out.println("GoogleLoginIdToken.onSilentLoginFinished");
if (signInResult != null) {
GoogleSignInAccount signInAccount = signInResult.getSignInAccount();
if (signInAccount != null) {
String emailAddress = signInAccount.getEmail();
String token = signInAccount.getIdToken();
System.out.println("token = " + token);
System.out.println("emailAddress = " + emailAddress);
}
}
}
}

最佳答案

是的,上面的答案是正确的。一般来说,任何 GoogleApiClient 都需要连接才能返回任何数据。 enableAutoManage 帮助您在 onStart()/onStop() 期间自动调用 connect()/disconnect()。如果不使用 autoManage,则需要手动 connect()。

更好的是,您应该在 finally block 中断开连接。

假设您不在 UI 线程上。

try {
ConnectionResult result = mGoogleApiClient.blockingConnect();
if (result.isSuccess()) {
GoogleSignInResult googleSignInResult =
Auth.GoogleSignInApi.silentSignIn(googleApiClient).await();
...
}
} finally {
mGoogleApiClient.disconnect();
}

此外,稍微清理一下您的代码:1. 从以下配置构建的 gso 与上面粘贴的代码相同:

GoogleSignInOptions gso =
new GoogleSignInOptions.Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
.requestIdToken(SERVER_CLIENT_ID)
.requestEmail()
.build();
  1. 根据您当前的逻辑, addOnConnectionFailedListener/addConnectionCallbacks 除了 adb log 没有帮助。也许只是将它们完全删除?

关于android - 使用 GoogleApiClient 静默登录以检索 token ,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34900956/

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