Android 应用程序集成FaceBook 登录及二次封装

1、首先在Facebook 开发者平台注册一个账号

https://developers.facebook.com/

开发者后台  https://developers.facebook.com/apps

2、创建账号并且获得 APP ID

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3、获取app签名的Key Hashes 值（两种方式）

获取方式：https://blog.****.net/zhaoyanjun6/article/details/105344657                            

4、设置应用的基本配置

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5、App开始集成 FacebookSDk

5.1 在项目的 build.gradle 添加

compile 'com.facebook.android:facebook-android-sdk:4.10.1'

查看最新的版本 ： http://search.maven.org/#search%7Cga%7C1%7Ccom.facebook.android

5.2 在应用的 Application 里面初始化SDK

//facebook登录初始化

      FacebookSdk.sdkInitialize( getApplicationContext() );

5.3 在value文件夹下 strings.xml 中

<!-- facebook 登录 key-->

      <string name="facebook_app_id">1001702146573854</string>

5.4 在 AndroidManifest.xml 中

<meta-data
            android:name="com.facebook.sdk.ApplicationId"
            android:value="@string/facebook_app_id"/>

<activity
    android:name="com.facebook.FacebookActivity"
    android:configChanges="keyboard|keyboardHidden|screenLayout|screenSize|orientation"
    android:theme="@android:style/Theme.Translucent.NoTitleBar"
    android:label="@string/app_name"
    >
</activity>  

5.5 在布局文件中定义登录按钮

 <com.facebook.login.widget.LoginButton
            android:id="@+id/facebook_bt"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:text="facebook login"
            >
 </com.facebook.login.widget.LoginButton>

　　

5.6 在代码中实现

 package com.pegasus.map.presentation.ui.activity;
 import android.content.Intent;
 import android.os.Bundle;
 import android.widget.Toast;
 import com.facebook.CallbackManager;
 import com.facebook.FacebookCallback;
 import com.facebook.FacebookException;
 import com.facebook.login.LoginResult;
 import com.facebook.login.widget.LoginButton;
 import com.pegasus.map.R;
 import com.pegasus.map.presentation.ui.base.BaseActivity;
 import butterknife.Bind;
 import butterknife.ButterKnife;

 /**
  * Created by ${zyj} on 2016/3/24.
  * 登录
  */

 public class LoginLoginActivity extends BaseActivity {

     @Bind(R.id.facebook_bt)
     public LoginButton facebook_bt;

     private CallbackManager callbackManager ;

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

         ButterKnife.bind(this);
         callbackManager = CallbackManager.Factory.create() ;

         init();
     }

     private void init() {

         facebook_bt.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
             @Override
             public void onSuccess(LoginResult loginResult) {
                 Toast.makeText(LoginLoginActivity.this, "facebook登录成功了", Toast.LENGTH_SHORT).show();
                 log("facebook登录成功了" + loginResult.getAccessToken());
                   //获取登录信息
                   getLoginInfo( loginResult.getAccessToken() ) ;
             }

             @Override
             public void onCancel() {
                 Toast.makeText(LoginLoginActivity.this, "facebook登录取消了", Toast.LENGTH_SHORT).show();
                 log("facebook登录取消了");
             }

             @Override
             public void onError(FacebookException error) {
                 Toast.makeText(LoginLoginActivity.this, "facebook登录失败了", Toast.LENGTH_SHORT).show();
                 log("facebook登录失败了");
             }
         });

     }

     @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);

         //facebook回调
         callbackManager.onActivityResult( requestCode , resultCode ,data ) ;
     }
 }

 /**
      * 获取登录信息
      * @param accessToken
      */
     public void getLoginInfo( AccessToken accessToken ){
         GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
             @Override
             public void onCompleted(JSONObject object, GraphResponse response) {
                 if (object != null) {
                     String id = object.optString( "id" ) ;   //比如:1565455221565
                     String name = object.optString( "name" ) ;  //比如：Zhang San
                     String gender = object.optString("gender") ;  //性别：比如 male （男）  female （女）
                     String emali = object.optString("email") ;  //邮箱：比如：[e-mail]

                     //获取用户头像
                     JSONObject object_pic = object.optJSONObject( "picture" ) ;
                     JSONObject object_data = object_pic.optJSONObject( "data" ) ;
                     String photo = object_data.optString( "url" )  ;

                     //获取地域信息
                     String locale = object.optString( "locale" ) ;   //zh_CN 代表中文简体

                     Toast.makeText( activity , "" + object.toString() , Toast.LENGTH_SHORT).show();
                 }
             }
         }) ;

         Bundle parameters = new Bundle();
         parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale,updated_time,timezone,age_range,first_name,last_name");
         request.setParameters(parameters);
         request.executeAsync() ;
     }

5.7 企业账号需要注意的事项，把发布按钮打开

6、对facebookSDk 进行二次封装

 package com.pegasus.map.presentation.utils;

 import android.app.Activity;
 import android.content.DialogInterface;
 import android.os.Bundle;
 import android.support.v7.app.AlertDialog;
 import android.widget.Toast;

 import com.facebook.AccessToken;
 import com.facebook.CallbackManager;
 import com.facebook.FacebookCallback;
 import com.facebook.FacebookException;
 import com.facebook.GraphRequest;
 import com.facebook.GraphResponse;
 import com.facebook.Profile;
 import com.facebook.login.LoginManager;
 import com.facebook.login.LoginResult;

 import org.json.JSONObject;

 import java.util.Arrays;
 import java.util.Collections;
 import java.util.List;

 /**
  * Created by ${zyj} on 2016/3/30.
  */
 public class FaceBookLogin {

     private Activity activity ;
     private CallbackManager callbackManager ;
     private FacebookListener facebookListener ;
     private List<String> permissions = Collections.<String>emptyList();
     private LoginManager loginManager;

     public FaceBookLogin( Activity activity ){
         this.activity = activity ;

         //初始化facebook登录服务
         callbackManager = CallbackManager.Factory.create() ;
         getLoginManager().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
             @Override
             public void onSuccess(LoginResult loginResult) {
                 // login success
                 AccessToken accessToken = loginResult.getAccessToken();
                 getLoginInfo(accessToken);
             }

             @Override
             public void onCancel() {
                 //取消登录
             }

             @Override
             public void onError(FacebookException error) {
                 //登录出错
             }
         });

         permissions = Arrays
                 .asList("email", "user_likes", "user_status", "user_photos", "user_birthday", "public_profile", "user_friends") ;
     }

     /**
      * 登录
      */
     public void login(){
         getLoginManager().logInWithReadPermissions(
                 activity, permissions);
     }

     /**
      * 退出
      */
     public void logout(){
         String logout = activity.getResources().getString(
                 com.facebook.R.string.com_facebook_loginview_log_out_action);
         String cancel = activity.getResources().getString(
                 com.facebook.R.string.com_facebook_loginview_cancel_action);
         String message;
         Profile profile = Profile.getCurrentProfile();
         if (profile != null && profile.getName() != null) {
             message = String.format(
                     activity.getResources().getString(
                             com.facebook.R.string.com_facebook_loginview_logged_in_as),
                     profile.getName());
         } else {
             message = activity.getResources().getString(
                     com.facebook.R.string.com_facebook_loginview_logged_in_using_facebook);
         }
         AlertDialog.Builder builder = new AlertDialog.Builder(activity);
         builder.setMessage(message)
                 .setCancelable(true)
                 .setPositiveButton(logout, new DialogInterface.OnClickListener() {
                     public void onClick(DialogInterface dialog, int which) {
                         getLoginManager().logOut();
                     }
                 })
                 .setNegativeButton(cancel, null);
         builder.create().show();
     }

     /**
      * 获取登录信息
      * @param accessToken
      */
     public void getLoginInfo( AccessToken accessToken ){
         GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {
             @Override
             public void onCompleted(JSONObject object, GraphResponse response) {
                 if (object != null) {
                     String id = object.optString("id");   //比如:1565455221565
                     String name = object.optString("name");  //比如：Zhang San
                     String gender = object.optString("gender");  //性别：比如 male （男）  female （女）
                     String emali = object.optString("email");  //邮箱：比如：[e-mail]

                     //获取用户头像
                     JSONObject object_pic = object.optJSONObject("picture");
                     JSONObject object_data = object_pic.optJSONObject("data");
                     String photo = object_data.optString("url");

                     //获取地域信息
                     String locale = object.optString("locale");   //zh_CN 代表中文简体

                     Toast.makeText(activity, "" + object.toString(), Toast.LENGTH_SHORT).show();
                 }
             }
         }) ;

         Bundle parameters = new Bundle();
         parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale,updated_time,timezone,age_range,first_name,last_name");
         request.setParameters(parameters);
         request.executeAsync() ;
     }

     /**
      * 获取loginMananger
      * @return
      */
     private LoginManager getLoginManager() {
         if (loginManager == null) {
             loginManager = LoginManager.getInstance();
         }
         return loginManager;
     }

     public CallbackManager getCallbackManager(){
         return callbackManager ;
     }

     /**
      * 设置登录简体器
      * @param facebookListener
      */
     public void setFacebookListener( FacebookListener facebookListener ){
         this.facebookListener =facebookListener ;
     }

     public interface FacebookListener {
         void facebookLoginSuccess();
         void facebookLoginFail() ;
     }

 }

在 activity 使用

      //初始化Facebook登录服务
      FaceBookLogin  faceBookLogin = new FaceBookLogin( this ) ;

      //登录
      faceBookLogin.login();

      //退出
      faceBookLogin.logout();

 @Override
     protected void onActivityResult(int requestCode, int resultCode, Intent data) {
         super.onActivityResult(requestCode, resultCode, data);

         //facebook回调
         faceBookLogin.getCallbackManager().onActivityResult(requestCode, resultCode, data);

     }

---

最新更新（2020/4/16）

最近有机会又接触到海外项目，刚好要做 facebook 登陆功能，下面我把封装的代码用 Kotlin 实现一遍：

FacebookLoginUtil 工具类

package com.enjoy.literaturemodule.account.login.facebook

import android.app.Activity
import android.content.DialogInterface
import android.os.Bundle
import androidx.appcompat.app.AlertDialog
import com.facebook.*
import com.facebook.AccessToken
import com.facebook.login.LoginManager
import com.facebook.login.LoginResult
import org.json.JSONObject

/**
 * @author yanjun.zhao
 * @time 2020/3/10 2:35 PM
 * @desc
 */
class FacebookLoginUtil(private var activity: Activity) {

    private var loginManager: LoginManager? = null
    private val permissions: List<String>
    private var callbackManager: CallbackManager? = null

    init {
        //初始化facebook登录服务
        callbackManager = CallbackManager.Factory.create()
        getLoginManager()?.registerCallback(callbackManager, object : FacebookCallback<LoginResult> {
            override fun onSuccess(result: LoginResult?) {
                getLoginInfo(result?.accessToken)
            }

            override fun onCancel() {
            }

            override fun onError(error: FacebookException?) {
            }
        })
        permissions = listOf("email", "user_likes", "user_status", "user_photos", "user_birthday", "public_profile", "user_friends");
    }

    /**
     * 登陆
     */
    fun login() {
        getLoginManager().logInWithReadPermissions(activity, permissions)
    }

    /**
     * 退出登陆
     */
    fun loginOut() {
        var logout = activity.resources.getString(com.facebook.R.string.com_facebook_loginview_log_out_action)
        var cancel = activity.resources.getString(com.facebook.R.string.com_facebook_loginview_cancel_action)
        val message: String
        val profile: Profile = Profile.getCurrentProfile()
        message = if (profile?.name != null) {
            java.lang.String.format(
                    activity.resources.getString(
                            R.string.com_facebook_loginview_logged_in_as),
                    profile.name)
        } else {
            activity.resources.getString(
                    R.string.com_facebook_loginview_logged_in_using_facebook)
        }
        val builder: AlertDialog.Builder = AlertDialog.Builder(activity)
        builder.setMessage(message)
                .setCancelable(true)
                .setPositiveButton(logout, DialogInterface.OnClickListener { dialog, which ->
                    getLoginManager().logOut()
                })
                .setNegativeButton(cancel, null)
        builder.create().show()
    }

    /**
     * 获取登录信息
     * @param accessToken
     */
    private fun getLoginInfo(accessToken: AccessToken?) {
        var request = GraphRequest.newMeRequest(accessToken, object : GraphRequest.GraphJSONObjectCallback {
            override fun onCompleted(`object`: JSONObject?, response: GraphResponse?) {

                `object`?.run {
                    val id = optString("id") //比如:1565455221565
                    val name = optString("name") //比如：Zhang San
                    val gender = optString("gender") //性别：比如 male （男）  female （女）
                    val emali = optString("email") //邮箱：比如：[e-mail]
                    //获取用户头像
                    val object_pic = optJSONObject("picture")
                    val object_data = object_pic.optJSONObject("data")
                    val photo = object_data.optString("url")
                    //获取地域信息
                    val locale = optString("locale") //zh_CN 代表中文简体

                }
            }
        })
        val parameters = Bundle()
        parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale,updated_time,timezone,age_range,first_name,last_name")
        request.parameters = parameters
        request.executeAsync()
    }

    fun getCallbackManager(): CallbackManager? {
        return callbackManager
    }

    /**
     * 获取loginMananger
     * @return
     */
    private fun getLoginManager(): LoginManager {
        if (loginManager == null) {
            loginManager = LoginManager.getInstance();
        }
        return loginManager!!
    }

    companion object {

        /**
         * 是否处在登陆状态
         */
        fun isLogin(): Boolean {
            val accessToken = AccessToken.getCurrentAccessToken()
            val isLoggedIn = accessToken != null && !accessToken.isExpired
            return isLogin()
        }
    }
}

Activity 使用示范

package com.enjoy.literaturemodule.account

import android.app.Activity
import android.content.Intent
import android.os.Bundle
import com.enjoy.literaturemodule.R
import com.enjoy.literaturemodule.account.login.facebook.FacebookLoginUtil
import kotlinx.android.synthetic.main.activity_login.*

/**
 * 登陆
 */
class LoginActivity : Activity() {

    private var faceBookUtil: FacebookLoginUtil? = null

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_login)
        faceBookUtil = FacebookLoginUtil(this)

        facebook_login?.setOnClickListener {
            faceBookUtil?.login()
        }
    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        //facebook 登陆
        //facebook回调
        faceBookUtil?.getCallbackManager()?.onActivityResult(requestCode, resultCode, data)
        super.onActivityResult(requestCode, resultCode, data)
    }
}