如何将 Amazon Cognito 与适用于 Android 的 Google Plus 集成？

Posted 2023-03-27

【中文标题】如何将 Amazon Cognito 与适用于 Android 的 Google Plus 集成？

【英文标题】：How to integrate Amazon Cognito with Google Plus for Android?

【发布时间】：2015-03-20 07:58:19

【问题描述】：

这是我在这里的第一个问题，所以请温柔一点。作为我大学项目的一部分，我需要开发一个 android 应用程序，让我可以上传文件并与其他用户共享文件。我是 Android 编程新手（我观看了一些 Android 初学者视频并开发了基本的应用程序进行练习），并且作为开发人员第一次使用云计算。我正在使用亚马逊网络服务。

我有一个代码，可以让我使用我的 google 帐户登录，并在登录后显示我的姓名、电子邮件 ID 和个人资料照片。 我想将它与 Amazon Cognito 集成，这样我就可以获得唯一的 ID，我可以用它来进一步在 AWS 上工作。如何为每个登录应用的用户获取唯一密钥？

我看了一些教程，但不明白如何将 Cognito 代码集成到我的代码中。

这是我的代码。

package com.unicloud.project;

import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Map;

import android.accounts.AccountManager;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.IntentSender.SendIntentException;
import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.os.AsyncTask;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.auth.GoogleAuthException;
import com.google.android.gms.auth.GoogleAuthUtil;
import com.google.android.gms.common.ConnectionResult;
import com.google.android.gms.common.GooglePlayServicesUtil;
import com.google.android.gms.common.SignInButton;
import com.google.android.gms.common.api.GoogleApiClient;
import com.google.android.gms.common.api.GoogleApiClient.ConnectionCallbacks;
import com.google.android.gms.common.api.GoogleApiClient.OnConnectionFailedListener;
import com.google.android.gms.common.api.ResultCallback;
import com.google.android.gms.common.api.Status;
import com.google.android.gms.plus.Account;
import com.google.android.gms.plus.Plus;
import com.google.android.gms.plus.model.people.Person;

import com.amazonaws.auth.CognitoCachingCredentialsProvider;
import com.amazonaws.regions.Regions;


public class loginWithGooglePlus extends Activity implements OnClickListener,
        ConnectionCallbacks, OnConnectionFailedListener 
    private static final int RC_SIGN_IN = 0;
    // Logcat tag
    private static final String TAG = "loginWithGooglePlus";

    // Profile pic image size in pixels
    private static final int PROFILE_PIC_SIZE = 400;

    // Google client to interact with Google API
    private GoogleApiClient mGoogleApiClient;

    /**
     * A flag indicating that a PendingIntent is in progress and prevents us
     * from starting further intents.
     */
    private boolean mIntentInProgress;

    private boolean mSignInClicked;

    private ConnectionResult mConnectionResult;

    private SignInButton btnSignIn;
    private Button btnSignOut, btnRevokeAccess;
    private ImageView imgProfilePic;
    private TextView txtName, txtEmail;
    private LinearLayout llProfileLayout;

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

        btnSignIn = (SignInButton) findViewById(R.id.btn_sign_in);
        btnSignOut = (Button) findViewById(R.id.btn_sign_out);
        btnRevokeAccess = (Button) findViewById(R.id.btn_revoke_access);
        imgProfilePic = (ImageView) findViewById(R.id.imgProfilePic);
        txtName = (TextView) findViewById(R.id.txtName);
        txtEmail = (TextView) findViewById(R.id.txtEmail);
        llProfileLayout = (LinearLayout) findViewById(R.id.llProfile);

        // Button click listeners
        btnSignIn.setOnClickListener(this);
        btnSignOut.setOnClickListener(this);
        btnRevokeAccess.setOnClickListener(this);

        mGoogleApiClient = new GoogleApiClient.Builder(this)
                .addConnectionCallbacks(this).addOnConnectionFailedListener(this)
                .addApi(Plus.API, new Plus.PlusOptions.Builder().build()) // note the options
                .addScope(Plus.SCOPE_PLUS_LOGIN).build();
    

    protected void onStart() 
        super.onStart();
        mGoogleApiClient.connect();
    

    protected void onStop() 
        super.onStop();
        if (mGoogleApiClient.isConnected()) 
            mGoogleApiClient.disconnect();
        
    

    /**
     * Method to resolve any signin errors
     */
    private void resolveSignInError() 
        if (mConnectionResult.hasResolution()) 
            try 
                mIntentInProgress = true;
                mConnectionResult.startResolutionForResult(this, RC_SIGN_IN);
             catch (SendIntentException e) 
                mIntentInProgress = false;
                mGoogleApiClient.connect();
            
        
    

    @Override
    public void onConnectionFailed(ConnectionResult result) 
        if (!result.hasResolution()) 
            GooglePlayServicesUtil.getErrorDialog(result.getErrorCode(), this,
                    0).show();
            return;
        

        if (!mIntentInProgress) 
            // Store the ConnectionResult for later usage
            mConnectionResult = result;

            if (mSignInClicked) 
                // The user has already clicked 'sign-in' so we attempt to
                // resolve all
                // errors until the user is signed in, or they cancel.
                resolveSignInError();
            
        

    

    @Override
    protected void onActivityResult(int requestCode, int responseCode,
                                    Intent intent) 
        if (requestCode == RC_SIGN_IN) 
            if (responseCode != RESULT_OK) 
                mSignInClicked = false;
            

            mIntentInProgress = false;

            if (!mGoogleApiClient.isConnecting()) 
                mGoogleApiClient.connect();
            
        
    

    @Override
    public void onConnected(Bundle arg0) 
        mSignInClicked = false;
        Toast.makeText(this, "User is connected!", Toast.LENGTH_LONG).show();

        // Get user's information
        getProfileInformation();

        // Update the UI after signin
        updateUI(true);

    

    /**
     * Updating the UI, showing/hiding buttons and profile layout
     */
    private void updateUI(boolean isSignedIn) 
        if (isSignedIn) 
            btnSignIn.setVisibility(View.GONE);
            btnSignOut.setVisibility(View.VISIBLE);
            btnRevokeAccess.setVisibility(View.VISIBLE);
            llProfileLayout.setVisibility(View.VISIBLE);
         else 
            btnSignIn.setVisibility(View.VISIBLE);
            btnSignOut.setVisibility(View.GONE);
            btnRevokeAccess.setVisibility(View.GONE);
            llProfileLayout.setVisibility(View.GONE);
        
    

    /**
     * Fetching user's information name, email, profile pic
     */
    private void getProfileInformation() 
        try 
            if (Plus.PeopleApi.getCurrentPerson(mGoogleApiClient) != null) 
                Person currentPerson = Plus.PeopleApi
                        .getCurrentPerson(mGoogleApiClient);
                String personName = currentPerson.getDisplayName();
                String personPhotoUrl = currentPerson.getImage().getUrl();
                String personGooglePlusProfile = currentPerson.getUrl();
                String email = Plus.AccountApi.getAccountName(mGoogleApiClient);

                Log.e(TAG, "Name: " + personName + ", plusProfile: "
                        + personGooglePlusProfile + ", email: " + email
                        + ", Image: " + personPhotoUrl);

                txtName.setText(personName);
                txtEmail.setText(email);

                // by default the profile url gives 50x50 px image only
                // we can replace the value with whatever dimension we want by
                // replacing sz=X
                personPhotoUrl = personPhotoUrl.substring(0,
                        personPhotoUrl.length() - 2)
                        + PROFILE_PIC_SIZE;

                new LoadProfileImage(imgProfilePic).execute(personPhotoUrl);

             else 
                Toast.makeText(getApplicationContext(),
                        "Person information is null", Toast.LENGTH_LONG).show();
            
         catch (Exception e) 
            e.printStackTrace();
        
    

    @Override
    public void onConnectionSuspended(int arg0) 
        mGoogleApiClient.connect();
        updateUI(false);
    

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

    /**
     * Button on click listener
     */
    @Override
    public void onClick(View v) 
        switch (v.getId()) 
            case R.id.btn_sign_in:
                // Signin button clicked
                signInWithGplus();
                break;
            case R.id.btn_sign_out:
                // Signout button clicked
                signOutFromGplus();
                break;
            case R.id.btn_revoke_access:
                // Revoke access button clicked
                revokeGplusAccess();
                break;
        
    

    /**
     * Sign-in into google
     */
    private void signInWithGplus() 
        if (!mGoogleApiClient.isConnecting()) 
            mSignInClicked = true;
            resolveSignInError();
        
    

    /**
     * Sign-out from google
     */
    private void signOutFromGplus() 
        if (mGoogleApiClient.isConnected()) 
            Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
            mGoogleApiClient.disconnect();
            mGoogleApiClient.connect();
            updateUI(false);
        
    

    /**
     * Revoking access from google
     */
    private void revokeGplusAccess() 
        if (mGoogleApiClient.isConnected()) 
            Plus.AccountApi.clearDefaultAccount(mGoogleApiClient);
            Plus.AccountApi.revokeAccessAndDisconnect(mGoogleApiClient)
                    .setResultCallback(new ResultCallback<Status>() 
                        @Override
                        public void onResult(Status arg0) 
                            Log.e(TAG, "User access revoked!");
                            mGoogleApiClient.connect();
                            updateUI(false);
                        

                    );
        
    

    /**
     * Background Async task to load user profile picture from url
     */
    private class LoadProfileImage extends AsyncTask<String, Void, Bitmap> 
        ImageView bmImage;

        public LoadProfileImage(ImageView bmImage) 
            this.bmImage = bmImage;
        

        protected Bitmap doInBackground(String... urls) 
            String urldisplay = urls[0];
            Bitmap mIcon11 = null;
            try 
                InputStream in = new java.net.URL(urldisplay).openStream();
                mIcon11 = BitmapFactory.decodeStream(in);
             catch (Exception e) 
                Log.e("Error", e.getMessage());
                e.printStackTrace();
            
            return mIcon11;
        

        protected void onPostExecute(Bitmap result) 
            bmImage.setImageBitmap(result);
        
    

这个link 有Android 的代码，但我不确定在程序中的何处添加该代码。我应该创建一个新课程吗？请帮帮我。

【参考方案1】：

您查看过 GitHub 中的CognitoSync sample 吗？它应该为您提供一些关于如何将 Cognito 集成到您的应用程序中的想法。