android - 在 Android 中获取 Google 帐户域

Question

我正在使用 Google+ Sign-In在我的 Android 应用程序中。如何获取经过身份验证的用户帐户的域？它不是 com.google.android.gms.plus.model.people.Person 模型的属性。

具体来说，我只希望一家公司的人能够使用他们的工作 Google 帐户访问该应用程序(公司中的每个人都有一个)。

我当然可以使用 Plus.AccountApi.getAccountName(mGoogleApiClient); 检索电子邮件地址并且可以检查电子邮件地址的域，但这看起来很讨厌。

Answer 1

您试图在流程中的错误时间过滤帐户域。您应该在用户登录之前进行检查。

为此，请检索系统上的所有帐户并检查符合条件的帐户，并且只有在找到合适的帐户后才能登录。

获取所有帐户并对其进行过滤的简单 Activity 可能如下所示:

public class CheckAccounts extends AppCompatActivity {

private static final int MY_PERMISSIONS_REQUEST_GET_ACCOUNTS = 8;
final String TAG = this.getClass().toString();

private void getPermissions() {
    // Should we show an explanation?
    if (ActivityCompat.shouldShowRequestPermissionRationale(this,
            Manifest.permission.GET_ACCOUNTS)) {

        // Show an explanation to the user *asynchronously* -- don't block
        // this thread waiting for the user's response! After the user
        // sees the explanation, try again to request the permission.

    } else {

        // No explanation needed, we can request the permission.

        ActivityCompat.requestPermissions(this,
                new String[]{Manifest.permission.GET_ACCOUNTS},
                MY_PERMISSIONS_REQUEST_GET_ACCOUNTS);

        // MY_PERMISSIONS_REQUEST_GET_ACCOUNTS is an
        // app-defined int constant. The callback method gets the
        // result of the request.
    }
}

private void getAccounts() {

    // Here, thisActivity is the current activity
    if (ContextCompat.checkSelfPermission(this,
            Manifest.permission.GET_ACCOUNTS)
            != PackageManager.PERMISSION_GRANTED) {

        getPermissions();
    }

    AccountManager accountManager = AccountManager.get(this);

    Account[] accounts = accountManager.getAccountsByType("com.google");

    for (Account a : accounts){
        String accountName = a.name;
        String domain = accountName.substring(accountName.indexOf("@") + 1, accountName.length());
        Log.d(TAG, "account domain: " + domain);
    }

}

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

}

@Override
public void onRequestPermissionsResult(int requestCode,
                                       String permissions[], int[] grantResults) {
    switch (requestCode) {
        case MY_PERMISSIONS_REQUEST_GET_ACCOUNTS: {
            // If request is cancelled, the result arrays are empty.
            if (grantResults.length > 0
                    && grantResults[0] == PackageManager.PERMISSION_GRANTED) {

                getAccounts();
                // permission was granted, yay! Do the
                // contacts-related task you need to do.

            } else {
                Log.d(TAG, "didn't get perms");
                // permission denied, boo! Disable the
                // functionality that depends on this permission.
            }
            return;
        }

        // other 'case' lines to check for other
        // permissions this app might request
    }
}
}

找到合适的帐户后，您可以使用 GoogleSignInOptions.Builder setAccountName使用此特定帐户登录。如果您在设备上找不到合适的帐户，您可以简单地通知用户，而不是先登录他或她的帐户。

问候，
米尔科