Android 应用程序集成FaceBook 登录及二次封装

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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）

3.1方法1：

 1 package com.pegasus.map.presentation.utils; 2 import android.content.Context; 3 import android.content.pm.PackageInfo; 4 import android.content.pm.PackageManager; 5 import android.content.pm.Signature; 6 import android.util.Base64; 7 import android.widget.Toast; 8 import java.security.MessageDigest; 9 import java.security.NoSuchAlgorithmException;10 11 /**12  * Created by ${zyj} on 2016/3/29.13  */14 public class KeyHash {15 16     /**17      * 注意运行的时候，app需要正式的签名18      * @param context19      * @param packageName  app的包名20      */21     public static void getKeyHash( Context context , String packageName ){22         try {23             PackageInfo info = null;24             info = context.getPackageManager().getPackageInfo( packageName , PackageManager.GET_SIGNATURES );25             for ( Signature signature : info.signatures ) {26                 MessageDigest messageDigest = null;27                 messageDigest = MessageDigest.getInstance("SHA");28                 messageDigest.update(signature.toByteArray());29                 String hs = Base64.encodeToString(messageDigest.digest(), Base64.DEFAULT) ;30                 Toast.makeText(context, "" + hs , Toast.LENGTH_SHORT).show();31             }32         } catch (PackageManager.NameNotFoundException e) {33             e.printStackTrace();34         } catch (NoSuchAlgorithmException e) {35             e.printStackTrace();36         }37     }38 }

3.2 命令行的方式获取 Key hash 值

3.2.1 ：首选保证你的电脑上有 openSSl 的库文件

下载 http://gnuwin32.sourceforge.net/packages/openssl.htm

3.2.2 ：解压下载的文件

3.2.3：cmd 命令行模式定位到 openssl 的 bin目录下

3.2.4：执行命令

keytool -exportcert -alias yiba -keystore C:\work\Key.jks | openssl sha1 -binary | openssl base64

注意： 1、这里的 yiba 代表app签名的别名，也就是 alias

2、C:\work\Key.jks 代表签名的路径，需要换成你签名的路径

3.2.5 如果你的电脑上没有下载 openssl 那么你执行下面的代码会出现

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

      <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

 1 package com.pegasus.map.presentation.ui.activity; 2 import android.content.Intent; 3 import android.os.Bundle; 4 import android.widget.Toast; 5 import com.facebook.CallbackManager; 6 import com.facebook.FacebookCallback; 7 import com.facebook.FacebookException; 8 import com.facebook.login.LoginResult; 9 import com.facebook.login.widget.LoginButton;10 import com.pegasus.map.R;11 import com.pegasus.map.presentation.ui.base.BaseActivity;12 import butterknife.Bind;13 import butterknife.ButterKnife;14 15 16 /**17  * Created by ${zyj} on 2016/3/24.18  * 登录19  */20 21 public class LoginLoginActivity extends BaseActivity {22     23     @Bind(R.id.facebook_bt)24     public LoginButton facebook_bt;25     26     private CallbackManager callbackManager ;27     28     @Override29     protected void onCreate(Bundle savedInstanceState) {30         super.onCreate(savedInstanceState);31         setContentView(R.layout.activity_login);32 33         ButterKnife.bind(this);34         callbackManager = CallbackManager.Factory.create() ;35         36         init();37     }38 39     private void init() {40         41         facebook_bt.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {42             @Override43             public void onSuccess(LoginResult loginResult) {44                 Toast.makeText(LoginLoginActivity.this, "facebook登录成功了", Toast.LENGTH_SHORT).show();45                 log("facebook登录成功了" + loginResult.getAccessToken());
                   //获取登录信息
                   getLoginInfo( loginResult.getAccessToken() ) ;46             }47 48             @Override49             public void onCancel() {50                 Toast.makeText(LoginLoginActivity.this, "facebook登录取消了", Toast.LENGTH_SHORT).show();51                 log("facebook登录取消了");52             }53 54             @Override55             public void onError(FacebookException error) {56                 Toast.makeText(LoginLoginActivity.this, "facebook登录失败了", Toast.LENGTH_SHORT).show();57                 log("facebook登录失败了");58             }59         });60         61     }62     63     @Override64     protected void onActivityResult(int requestCode, int resultCode, Intent data) {65         super.onActivityResult(requestCode, resultCode, data);66 67         //facebook回调68         callbackManager.onActivityResult( requestCode , resultCode ,data ) ;69     }70 }

 1 /** 2      * 获取登录信息 3      * @param accessToken 4      */ 5     public void getLoginInfo( AccessToken accessToken ){ 6         GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() { 7             @Override 8             public void onCompleted(JSONObject object, GraphResponse response) { 9                 if (object != null) {10                     String id = object.optString( "id" ) ;   //比如:156545522156511                     String name = object.optString( "name" ) ;  //比如：Zhang San12                     String gender = object.optString("gender") ;  //性别：比如 male （男）  female （女）13                     String emali = object.optString("email") ;  //邮箱：比如：56236545@qq.com14 15                     //获取用户头像16                     JSONObject object_pic = object.optJSONObject( "picture" ) ;17                     JSONObject object_data = object_pic.optJSONObject( "data" ) ;18                     String photo = object_data.optString( "url" )  ;19 20                     //获取地域信息21                     String locale = object.optString( "locale" ) ;   //zh_CN 代表中文简体22 23                     Toast.makeText( activity , "" + object.toString() , Toast.LENGTH_SHORT).show();24                 }25             }26         }) ;27 28         Bundle parameters = new Bundle();29         parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale,updated_time,timezone,age_range,first_name,last_name");30         request.setParameters(parameters);31         request.executeAsync() ;32     }

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

  1 package com.pegasus.map.presentation.utils;  2   3 import android.app.Activity;  4 import android.content.DialogInterface;  5 import android.os.Bundle;  6 import android.support.v7.app.AlertDialog;  7 import android.widget.Toast;  8   9 import com.facebook.AccessToken; 10 import com.facebook.CallbackManager; 11 import com.facebook.FacebookCallback; 12 import com.facebook.FacebookException; 13 import com.facebook.GraphRequest; 14 import com.facebook.GraphResponse; 15 import com.facebook.Profile; 16 import com.facebook.login.LoginManager; 17 import com.facebook.login.LoginResult; 18  19 import org.json.JSONObject; 20  21 import java.util.Arrays; 22 import java.util.Collections; 23 import java.util.List; 24  25 /** 26  * Created by ${zyj} on 2016/3/30. 27  */ 28 public class FaceBookLogin { 29  30     private Activity activity ; 31     private CallbackManager callbackManager ; 32     private FacebookListener facebookListener ; 33     private List<String> permissions = Collections.<String>emptyList(); 34     private LoginManager loginManager; 35  36     public FaceBookLogin( Activity activity ){ 37         this.activity = activity ; 38  39         //初始化facebook登录服务 40         callbackManager = CallbackManager.Factory.create() ; 41         getLoginManager().registerCallback(callbackManager, new FacebookCallback<LoginResult>() { 42             @Override 43             public void onSuccess(LoginResult loginResult) { 44                 // login success 45                 AccessToken accessToken = loginResult.getAccessToken(); 46                 getLoginInfo(accessToken); 47             } 48  49             @Override 50             public void onCancel() { 51                 //取消登录 52             } 53  54             @Override 55             public void onError(FacebookException error) { 56                 //登录出错 57             } 58         }); 59  60         permissions = Arrays 61                 .asList("email", "user_likes", "user_status", "user_photos", "user_birthday", "public_profile", "user_friends") ; 62     } 63  64     /** 65      * 登录 66      */ 67     public void login(){ 68         getLoginManager().logInWithReadPermissions( 69                 activity, permissions); 70     } 71  72     /** 73      * 退出 74      */ 75     public void logout(){ 76         String logout = activity.getResources().getString( 77                 com.facebook.R.string.com_facebook_loginview_log_out_action); 78         String cancel = activity.getResources().getString( 79                 com.facebook.R.string.com_facebook_loginview_cancel_action); 80         String message; 81         Profile profile = Profile.getCurrentProfile(); 82         if (profile != null && profile.getName() != null) { 83             message = String.format( 84                     activity.getResources().getString( 85                             com.facebook.R.string.com_facebook_loginview_logged_in_as), 86                     profile.getName()); 87         } else { 88             message = activity.getResources().getString( 89                     com.facebook.R.string.com_facebook_loginview_logged_in_using_facebook); 90         } 91         AlertDialog.Builder builder = new AlertDialog.Builder(activity); 92         builder.setMessage(message) 93                 .setCancelable(true) 94                 .setPositiveButton(logout, new DialogInterface.OnClickListener() { 95                     public void onClick(DialogInterface dialog, int which) { 96                         getLoginManager().logOut(); 97                     } 98                 }) 99                 .setNegativeButton(cancel, null);100         builder.create().show();101     }102 103     /**104      * 获取登录信息105      * @param accessToken106      */107     public void getLoginInfo( AccessToken accessToken ){108         GraphRequest request = GraphRequest.newMeRequest(accessToken, new GraphRequest.GraphJSONObjectCallback() {109             @Override110             public void onCompleted(JSONObject object, GraphResponse response) {111                 if (object != null) {112                     String id = object.optString("id");   //比如:1565455221565113                     String name = object.optString("name");  //比如：Zhang San114                     String gender = object.optString("gender");  //性别：比如 male （男）  female （女）115                     String emali = object.optString("email");  //邮箱：比如：56236545@qq.com116 117                     //获取用户头像118                     JSONObject object_pic = object.optJSONObject("picture");119                     JSONObject object_data = object_pic.optJSONObject("data");120                     String photo = object_data.optString("url");121 122                     //获取地域信息123                     String locale = object.optString("locale");   //zh_CN 代表中文简体124 125                     Toast.makeText(activity, "" + object.toString(), Toast.LENGTH_SHORT).show();126                 }127             }128         }) ;129 130         Bundle parameters = new Bundle();131         parameters.putString("fields", "id,name,link,gender,birthday,email,picture,locale,updated_time,timezone,age_range,first_name,last_name");132         request.setParameters(parameters);133         request.executeAsync() ;134     }135 136     /**137      * 获取loginMananger138      * @return139      */140     private LoginManager getLoginManager() {141         if (loginManager == null) {142             loginManager = LoginManager.getInstance();143         }144         return loginManager;145     }146 147     public CallbackManager getCallbackManager(){148         return callbackManager ;149     }150 151     /**152      * 设置登录简体器153      * @param facebookListener154      */155     public void setFacebookListener( FacebookListener facebookListener ){156         this.facebookListener =facebookListener ;157     }158 159     public interface FacebookListener {160         void facebookLoginSuccess();161         void facebookLoginFail() ;162     }163 164 165 }

在 activity 使用

1      //初始化Facebook登录服务2      FaceBookLogin  faceBookLogin = new FaceBookLogin( this ) ;3         4      //登录5      faceBookLogin.login();6         7      //退出8      faceBookLogin.logout();

1 @Override2     protected void onActivityResult(int requestCode, int resultCode, Intent data) {3         super.onActivityResult(requestCode, resultCode, data);4 5         //facebook回调6         faceBookLogin.getCallbackManager().onActivityResult(requestCode, resultCode, data);7 8     }

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