打開瀏覽器，直接執行 http://xxxx/login/facebook 就可以看到 Facebook 登入連結。所以程式碼都放在 Github 上 codeigniter-facebook-php-sdk-v4，歡迎取用。

Android Facebook SDK 4.X，如何获取电子邮件地址和Facebook访问令牌以将其传递到Web服务

编辑：我的问题是如何使用Facebook SDK 4.X获取电子邮件，UserId，Facebook身份验证，此刻，借助Ming
Respond，我知道如何获取电子邮件，用户ID，所以我的问题是如何获取Facebook身份验证，因为Session和GraphUser刚被LoginManager和AccessToken取代，没有关于它的信息吗？

import android.app.Activity;import android.content.Intent;import android.os.Bundle;import android.util.Log;import com.facebook.AccessToken;import com.facebook.AccessTokenTracker;import com.facebook.CallbackManager;import com.facebook.FacebookCallback;import com.facebook.FacebookException;import com.facebook.Profile;import com.facebook.ProfileTracker;import com.facebook.login.LoginResult;import com.facebook.login.widget.LoginButton;import java.util.Arrays;public class RegisterActivity extends Activity {    private String fbUserID;    private String fbProfileName;    private String fbAuthToken;    private LoginButton fbLoginBtn;    private static final String TAG = "FacebookLogin";    CallbackManager callbackManager;    private AccessTokenTracker accessTokenTracker;    private ProfileTracker profileTracker;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.register_activity);        fbLoginBtn = (LoginButton) findViewById(R.id.connect_with_facebook_button);        fbLoginBtn.setReadPermissions(Arrays.asList("email", "user_photos", "public_profile"));        fbLoginBtn.setBackgroundResource(R.drawable.connect_facebook_button);        accessTokenTracker = new AccessTokenTracker() {            @Override            protected void onCurrentAccessTokenChanged(                    AccessToken oldAccessToken,                    AccessToken currentAccessToken) {                fbAuthToken = currentAccessToken.getToken();                fbUserID = currentAccessToken.getUserId();                Log.d(TAG, "User id: " + fbUserID);                Log.d(TAG, "Access token is: " + fbAuthToken);            }        };        profileTracker = new ProfileTracker() {            @Override            protected void onCurrentProfileChanged(                    Profile oldProfile,                    Profile currentProfile) {                fbProfileName = currentProfile.getName();                Log.d(TAG, "User name: " + fbProfileName );            }        };        fbLoginBtn.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {            @Override            public void onSuccess(LoginResult loginResult) {            }            @Override            public void onCancel() {                // App code            }            @Override            public void onError(FacebookException exception) {                // App code            }        });    }    @Override    public void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);callbackManager.onActivityResult(requestCode, resultCode, data);    }GraphRequest request = GraphRequest.newMeRequest(        accessToken,        new GraphRequest.GraphJSONObjectCallback() {            @Override            public void onCompleted(                    JSONObject user,                    GraphResponse response) {                String id = user.optString("id");                String firstName = user.optString("first_name");                String lastName = user.optString("last_name");                String email = user.optString("email");            }    @Override    public void onSaveInstanceState(Bundle savedState) {        super.onSaveInstanceState(savedState);    }

答案1

fbLoginBtn.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {    @Override    public void onSuccess(LoginResult loginResult) {        GraphRequest.newMeRequest(            loginResult.getAccessToken(), new GraphRequest.GraphJSONObjectCallback() {                @Override                public void onCompleted(JSONObject me, GraphResponse response) {                    if (response.getError() != null) {                        // handle error                    } else {                        String email = me.optString("email");                        String id = me.optString("id");                        // send email and id to your web server                    }                }            }).executeAsync();    }    @Override    public void onCancel() {        // App code    }    @Override    public void onError(FacebookException exception) {        // App code    }});

android – Facebook SDK 3.0 – 获取Facebook用户名和访问令牌

final Session session = Session.getActiveSession();
    if (session != null && session.isOpened()) {
        // If the session is open,make an API call to get user data
        // and define a new callback to handle the response
        Request request = Request.newMeRequest(session,new Request.GraphUserCallback() {
            @Override
            public void onCompleted(GraphUser user,Response response) {
                // If the response is successful
                if (session == Session.getActiveSession()) {
                    if (user != null) {
                        user_ID = user.getId();//user id
                        profileName = user.getName();//user's profile name
                        userNameView.setText(user.getName());
                    }   
                }   
            }   
        }); 
        Request.executeBatchAsync(request);
    }

String token = session.getAccesstoken();

setReadPermissions(Arrays.asList("email",...other permission...));
//by analyzing the links bellow,i think you can set the permission in loginbutton as:
loginButton.setReadPermissions(Arrays.asList("email",...other permission...));
user.asMap().get("email");

今天关于facebook sdk php示例无效和facebook.sdk的讲解已经结束，谢谢您的阅读，如果想了解更多关于#import "facebookSDK/FacebookSDK.h file not found"、<轉>PHP Facebook SDK 4.0.0案例、Android Facebook SDK 4.X，如何获取电子邮件地址和Facebook访问令牌以将其传递到Web服务、android – Facebook SDK 3.0 – 获取Facebook用户名和访问令牌的相关知识，请在本站搜索。