android – 在我的应用程序中启用Gmail登录

这些是我登录我的应用程序所需的最少细节：

guid(Global Unique ID)

fname

lname

email

gender

对于Facebook登录很明显,可以这样做：

JSONObject json = Util.parseJson(facebook.request("me");

获取上面指定的所有数据.

有,我有办法用Gmail做类似和简单的事情吗？

我读了this,其中说：

No, there is no such SDK(like facebook) and if you want to access the
emails of Gmail then you need to implement your own email client and
for that follow the above link shared by Spk.

但我只想要很少的用户细节,我不需要任何与他的邮件相关的东西……,这些都属于授权(如果我是对的).我只需要身份验证：

我也阅读了this,但看起来不会有任何帮助.

这是我现在的代码：

import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesClient.ConnectionCallbacks;
import com.google.android.gms.common.GooglePlayServicesClient.OnConnectionFailedListener;
import com.google.android.gms.plus.GooglePlusUtil;
import com.google.android.gms.plus.PlusClient;
import android.os.Bundle;
import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.Toast;

public class MainActivity extends Activity implements ConnectionCallbacks,
        OnConnectionFailedListener {

    private static final int REQUEST_CODE_RESOLVE_ERR = 7;
    private ProgressDialog mConnectionProgressDialog;
    private PlusClient mPlusClient;
    private ConnectionResult mConnectionResult;
    private String TAG = "GmailLogin";

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

        int errorCode = GooglePlusUtil.checkGooglePlusApp(this);
        if (errorCode != GooglePlusUtil.SUCCESS) {
            GooglePlusUtil.getErrorDialog(errorCode, this, 0).show();
        } else {

             mPlusClient = new PlusClient.Builder(this, this, this)
             .setVisibleActivities( "http://schemas.google.com/AddActivity",
             "http://schemas.google.com/BuyActivity").build();


            mConnectionProgressDialog = new ProgressDialog(this);
            mConnectionProgressDialog.setMessage("Signing in...");

            Button signInButton = (Button) findViewById(R.id.sign_in_button);
            signInButton.setonClickListener(new View.OnClickListener() {

                @Override
                public void onClick(View v) {

                    if (mConnectionResult == null) {
                        mConnectionProgressDialog.show();
                    } else {
                        try {
                            mConnectionResult
                                    .startResolutionForResult(
                                            MainActivity.this,
                                            REQUEST_CODE_RESOLVE_ERR);
                        } catch (SendIntentException e) {
                            // Try connecting again.
                            mConnectionResult = null;
                            mPlusClient.connect();
                        }
                    }
                }
            });
        }

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.main, menu);
        return true;
    }

    @Override
    public void onConnectionFailed(ConnectionResult result) {
        if (result.hasResolution()) {
            try {
                result.startResolutionForResult(this, REQUEST_CODE_RESOLVE_ERR);
            } catch (SendIntentException e) {
                mPlusClient.connect();
            }
        }
        // Save the result and resolve the connection failure upon a user click.
        mConnectionResult = result;
    }

    @Override
    protected void onActivityResult(int requestCode, int responseCode,
            Intent intent) {
        if (requestCode == REQUEST_CODE_RESOLVE_ERR
                && responseCode == RESULT_OK) {
            mConnectionResult = null;
            mPlusClient.connect();
        }
    }

    @Override
    public void onConnected() {
        String accountName = mPlusClient.getAccountName();
        Toast.makeText(this, accountName + " is connected.", Toast.LENGTH_LONG)
                .show();
    }

    @Override
    public void ondisconnected() {
        Log.d(TAG, "disconnected");
    }

    @Override
    protected void onStart() {
        super.onStart();
        mPlusClient.connect();
    }

    @Override
    protected void onStop() {
        super.onStop();
        mPlusClient.disconnect();
    }

    }

非常感谢任何帮助,谢谢.

解决方法:

您不应使用Gmail通过Google帐户进行用户身份验证.您可以使用Google登录Android.这将允许您在使用OAuth获取所需权限后访问用户的配置文件信息.在这里查看指南：

https://developers.google.com/+/mobile/android/sign-in