Atlas加载Google登录的远程Bundle设计

采用startActivity方式

AppBundleHelper.bundleExplicitly(mActivity, "google", "me.yezhou.lib", new AtlasBundleLoadedListener() {
        @Override
        public void onBundleLoaded() {
            AtlasDelegateHelper.startBundleActivityForResult(mActivity, ActivityConfig.ACTIVITY_GOOGLE_SIGNIN, IntentCode.REQUEST_GOOGLE_SIGNIN.ordinal());
            mActivity.overridePendingTransition(R.anim.push_bottom_in, R.anim.push_bottom_out);
        }
    });

注意设置GoogleSignInActivity的背景为透明，让用户看不出有页面跳转的痕迹

<style name="Transparent" parent="AppTheme">
    <item name="android:windowBackground">@color/transparent</item>
    <item name="android:windowNoTitle">true</item>
    <item name="android:windowIsTranslucent">true</item>
</style>

初始化

public void initGoogleAuth() {
    GoogleSignInOptions gso = new GoogleSignInOptions
            .Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken(getResources().getString(R.string.server_client_id))
            .requestId()
            .requestEmail()
            .requestProfile()
            .build();

    mGoogleSignInClient = GoogleSignIn.getClient(this, gso);
    //如果用戶已经登录返回account对象，没有登录 返回null
    GoogleSignInAccount account = GoogleSignIn.getLastSignedInAccount(this);
    if (account == null) {
        //初始化完成，检查到google账户没有登录
        googleAuthSignIn();
    } else {
        //初始化完成，检查到google账户已经登录，返回账号信息
        getGoogleUserInfo(account);
    }
}

登录

//登录
public void googleAuthSignIn() {
    Intent signInIntent = mGoogleSignInClient.getSignInIntent();
    startActivityForResult(signInIntent, REQUEST_GOOGLE_SIGNIN);
}

登录结果返回并处理

//登录结果返回
public void onActivityResult(int requestCode, int resultCode, Intent data) {
    super.onActivityResult(requestCode, resultCode, data);
    // Result returned from launching the Intent from GoogleSignInClient.getSignInIntent(...);
    if (requestCode == REQUEST_GOOGLE_SIGNIN) {
        // The Task returned from this call is always completed, no need to attach
        Task<GoogleSignInAccount> task = GoogleSignIn.getSignedInAccountFromIntent(data);
        handleSignInResult(task);
    }
}

//处理登录结果，并回调登录结果
private void handleSignInResult(Task<GoogleSignInAccount> completedTask) {
    try {
        GoogleSignInAccount account = completedTask.getResult(ApiException.class);
        // Signed in successfully, show authenticated UI.
        getGoogleUserInfo(account);

    } catch (ApiException e) {
        // The ApiException status code indicates the detailed failure reason.
        // Please refer to the GoogleSignInStatusCodes class reference for more information.
        NLog.w(TAG, "signInResult:failed code=" + e.getStatusCode());
        NLog.d(TAG, e.getMessage());
        e.printStackTrace();
        setResult(RESULT_CANCELED);
        finish();
    }
}

public void getGoogleUserInfo(GoogleSignInAccount account) {
    String id = account.getId();
    String name = account.getDisplayName();
    String familyName = account.getFamilyName();
    String givenName = account.getGivenName();
    String email = account.getEmail();
    Uri photoUri = account.getPhotoUrl();
    String photoUrl = photoUri != null ? photoUri.toString() : "";
    String token = account.getIdToken();
    long expirationTimeSecs = account.getExpirationTimeSecs();
    NLog.i(TAG, "name: " + name + ", email: " + email);

    GoogleAccess googleAccess = new GoogleAccess();
    googleAccess.setId(id);
    googleAccess.setName(name);
    googleAccess.setFamilyName(familyName);
    googleAccess.setGivenName(givenName);
    googleAccess.setEmail(email);
    googleAccess.setPhotoUrl(photoUrl);
    googleAccess.setToken(token);
    googleAccess.setExpirationTimeSecs(expirationTimeSecs);

    Intent intent = new Intent();
    intent.putExtra("google_access", googleAccess);
    setResult(RESULT_OK, intent);
    finish();
}

若登录结果返回报如下类似错误：

com.google.android.gms.common.api.ApiException: 8: 
    at com.google.android.gms.common.internal.ApiExceptionUtil.fromStatus(Unknown Source)
    at com.google.android.gms.auth.api.signin.GoogleSignIn.getSignedInAccountFromIntent(Unknown Source)
    at me.yezhou.lib.google.signin.GoogleSignActivity.onActivityResult(GoogleSignActivity.java:73)

可根据结果码查询错误原因：https://developers.google.com/android/reference/com/google/android/gms/common/api/CommonStatusCodes