在Android中通过fb登录后无法获取emailId [英] Unable to get emailId after login through fb in android

问题描述

我正在使用最近的Fb SDK。
我在Android Studio中做fb集成。
我已经完成了从fb文档的所有步骤。
但是，通过fb成功登录后，我没有收到电子邮件ID。

这是我的MainActivity.java

  package com.example.myapp; 
 import android.app.Activity; 
 import android.content.Intent; 
 import android.support.v4.app.Fragment; 
 import android.os.Bundle; 
 import android.util.Log; 
 import android.view.LayoutInflater; 
 import android.view.View; 
 import android.view.ViewGroup; 
 import android.widget.Button; 
 import android.widget.TextView; 
 import android.widget.Toast; 
 import com.facebook.AccessToken; 
 import com.facebook.AccessTokenTracker; 
 import com.facebook.CallbackManager; 
 import com.facebook.FacebookCallback; 
 import com.facebook.FacebookException; 
 import com.facebook.FacebookSdk; 
 import com.facebook.GraphRequest; 
 import com.facebook.GraphResponse; 
 import com.facebook.Profile; 
 import com.facebook.ProfileTracker; 
 import com.facebook.login.LoginResult; 
 import com.facebook.login.widget.LoginButton; 
 import org.json.JSONArray; 
 import org.json.JSONException; 
 import org.json.JSONObject; 
 import java.net.MalformedURLException; 
 import java.net.URL; 
 import java.util.Arrays; 
 import java.util.List; 
 public class MainActivity extends Activity {
 private CallbackManager callbackManager; 
按钮fb; 
私人AccessTokenTracker accessTokenTracker; 
私人ProfileTracker profileTracker; 
 LoginButton loginButton; 
 @Override 
 public void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 FacebookSdk.sdkInitialize（this.getApplicationContext（））; 
 setContentView（R.layout.activity_main）; 
 // fb =（Button）findViewById（R.id.button）; 
 callbackManager = CallbackManager.Factory.create（）; 
 fb =（Button）findViewById（R.id.fb）; 
 loginButton =（LoginButton）findViewById（R.id.login_button）; 
列表<字符串> permissionNeeds = Arrays.asList（user_photos，email，
user_birthday，public_profile，AccessToken）; 
 loginButton.registerCallback（callbackManager，
 new FacebookCallback< LoginResult>（）{@Override 
 public void onSuccess（LoginResult loginResult）{
 System.out.println（onSuccess ）; 
 String accessToken = loginResult.getAccessToken（）
 .getToken（）; 
 Log.i（accessToken，accessToken）; 
 GraphRequest request = GraphRequest.newMeRequest loginResult.getAccessToken（），新的GraphRequest.GraphJSONObjectCallback（）{
 @Override 
 public void onCompleted（JSONObject对象，GraphResponse响应）{
 Log.i（LoginActivity，
 object.toString（））; 
 Toast.makeText（getApplicationContext（），object.toString（），Toast.LENGTH_LONG）.sh流（）; 
 try {
 String id = object.getString（id）。toString（）; 
 String name = object.getString（name）; 
 String email = object.getString（email）; 
 String gender = object.getString（gender）; 
 String birthday = object.getString（birthday）; 
} catch（JSONException e）{
 e.printStackTrace（）; 
} 
} 
}）; 
 Bundle parameters = new Bundle（）; 
 parameters.putString（fields，
id，name，email，gender，birthday）; 
 request.setParameters（parameters）; 
 request.executeAsync（）; 
} 
 @Override 
 public void onCancel（）{
 System.out.println（onCancel）; 
} 
 @Override 
 public void onError（FacebookException exception）{
 System.out.println（onError）; 
 Log.v（LoginActivity，exception.getCause（）。toString（））; 
} 
}）; 
} 
 public void onClick（View v）{
 if（v == fb）{
 loginButton.performClick（）; 
} 
} 
 @Override 
 protected void onActivityResult（int requestCode，int responseCode，
意图数据）{
 super.onActivityResult（requestCode，responseCode，数据）; 
 callbackManager.onActivityResult（requestCode，responseCode，data）; 
} 
} 
  

这里是我的activity_main.xml

 <？xml version =1.0encoding =utf-8？> 
< RelativeLayout xmlns：android =http://schemas.android.com/apk/res/android
 xmlns：facebook =http://schemas.android.com/apk/res -auto
 xmlns：tools =http://schemas.android.com/tools
 android：layout_width =match_parent
 android：layout_height =match_parent
 
 android：paddingRight =@ dimen / activity_horizo​​ntal_margin
 android：paddingTop =@ dimen / activity_vertical_margin
 tools：context =com.example.myapp.MainActivity> 
 
< TextView 
 android：id =@ + id / txt
 android：layout_width =wrap_content
 android：layout_height =wrap_content
 android：text =Hello World！ /> 
 
< FrameLayout 
 android：id =@ + id / FrameLayout1
 android：layout_width =match_parent
 android：layout_height =wrap_content
 android：layout_below =@ + id / txt> 
 
< com.facebook.login.widget.LoginButton 
 android：id =@ + id / login_button
 android：layout_width =wrap_content
 android ：layout_height =wrap_content
 android：visibility =gone/> 
 
< Button 
 android：id =@ + id / fb
 android：layout_width =fill_parent
 android：layout_height =wrap_content
 android：background =＃416BC1
 android：onClick =onClick
 android：text =FaceBook
 android：textColor =＃ffffff
 android： textStyle =bold/> 
< / FrameLayout> 
 
< / RelativeLayout> 
  

这是我的Mainifest

 <？xml version =1.0encoding =utf-8？> 
< manifest xmlns：android =http://schemas.android.com/apk/res/android
 package =com.example.myapp> 
 
< uses-permission android：name =android.permission.INTERNET/> 
 
< application 
 android：allowBackup =true
 android：icon =@ mipmap / ic_launcher
 android：label =@ string / app_name 
 android：supportsRtl =true
 android：theme =@ style / AppTheme> 
< activity android：name =。MainActivity> 
< intent-filter> 
< action android：name =android.intent.action.MAIN/> 
 
< category android：name =android.intent.category.LAUNCHER/> 
< / intent-filter> 
< / activity> 
 
< 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/> 
<！ - 注意：这是自动生成的，为您的项目添加Google Play服务
应用程序索引。有关详细信息，请参阅https://g.co/AppIndexing/AndroidStudio。 - > 
 
< meta-data android：name =com.facebook.sdk.ApplicationIdandroid：value =@ string / facebook_app_id/> 
< / application> 
 
< / manifest> 
  

这是我的build.gradle模块：app

pre $ 应用插件：'com.android.application'

android {
compileSdkVersion 23
buildToolsVersion23.0.2

defaultConfig {
applicationIdcom.example.myapp
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName1.0

buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile（'proguard-android.txt'），'proguard-rules.pro'
}
}
}

存储库{
mavenCentral（）
}

依赖关系{
编译fileTree（dir：'libs '，include：['* .jar']）
testCompile'junit：junit：4.12'
compile'c​​om.android.support:appcompat-v7:23.1.1'
compile' com.facebook.android:facebook-android-sdk:4.7.0'

}


由于我的回应我得到

  12-03 21：28：10.452 8572-8572 /？ I / LoginActivity：{id：983511081738745，name：Subhankar Chakraborty，gender：male} 
  

如果有关于我的应用的任何问题请让我知道。

解决方案

我希望所以它会为你工作以及
我建立在android studio.and sdk4.7.0

MainActivity.class

  import android.app.Activity; 
 import android.content.Intent; 
 import android.support.v4.app.Fragment; 
 import android.os.Bundle; 
 import android.util.Log; 
 import android.view.LayoutInflater; 
 import android.view.View; 
 import android.view.ViewGroup; 
 import android.widget.Button; 
 import android.widget.TextView; 
 import android.widget.Toast; 
 
 import com.facebook.AccessToken; 
 import com.facebook.AccessTokenTracker; 
 import com.facebook.CallbackManager; 
 import com.facebook.FacebookCallback; 
 import com.facebook.FacebookException; 
 import com.facebook.FacebookSdk; 
 import com.facebook.GraphRequest; 
 import com.facebook.GraphResponse; 
 import com.facebook.Profile; 
 import com.facebook.ProfileTracker; 
 import com.facebook.login.LoginManager; 
 import com.facebook.login.LoginResult; 
 import com.facebook.login.widget.LoginButton; 
 
 
 import org.json.JSONArray; 
 import org.json.JSONException; 
 import org.json.JSONObject; 
 
 
 import java.net.MalformedURLException; 
 import java.net.URL; 
 import java.util.Arrays; 
 import java.util.List; 
 
 
 public class MainActivity extends Activity {
 
 
 
按钮fb; 
 
 private CallbackManager callbackManager; 
 private LoginManager loginManager; 
 private List< String> permissionNeeds = Arrays.asList（user_photos，email，user_birthday，user_friends）; 
 private String fbUserId; 
 private String fbUserName; 
 private String fbEmail; 
 private String fbGender; 
 private String fbDob; 
 TextView txt; 
 
 @Override 
 public void onCreate（Bundle savedInstanceState）{
 super.onCreate（savedInstanceState）; 
 FacebookSdk.sdkInitialize（this）; 
 callbackManager = CallbackManager.Factory.create（）; 
 loginManager = LoginManager.getInstance（）; 
 
 setContentView（R.layout.activity_main）; 
 fb =（Button）findViewById（R.id.button）; 
 txt =（TextView）findViewById（R.id.txt）; 
 
 
 
 
 
 
 
 
} 
 public void onClick（View v）{
 / * if（v == fb）{
 loginButton.performClick（）; 
} * / 
 FaceBookLogin（）; 
} 
 
 
 @Override 
 protected void onActivityResult（int requestCode，int resultCode，Intent data）{
 super.onActivityResult（requestCode，resultCode，data ）; 
 callbackManager.onActivityResult（requestCode，resultCode，data）; 
 
} 
 
 
 
 
 private void FaceBookLogin（）{
 loginManager.logInWithReadPermissions（MainActivity.this，permissionNeeds）; 
 loginManager.registerCallback（callbackManager，new FacebookCallback< LoginResult>（）{
 @Override 
 public void onSuccess（LoginResult loginResult）{
 GraphRequest request = GraphRequest.newMeRequest（
 loginResult.getAccessToken（），
 new GraphRequest.GraphJSONObjectCallback（）{
 @Override 
 public void onCompleted（
 JSONObject对象，
 GraphResponse响应）{
 
 Log.v（LoginActivity，response.toString（））; 
 
 
 try {
 fbUserId = object.getString（id）; 
 fbUserName = object.getString（name）; 
 fbEmail = object.getString（ema IL）; 
 fbGender = object.getString（gender）; 
 fbDob = object.getString（birthday）; 
 
 txt.setText（object.toString（））; 
 
 if（fbUserName.contains（））{
 String first_name = fbUserName.substring（0，fbUserName.indexOf（''））; 
 String lastName = fbUserName.substring（fbUserName.indexOf（''）+ 1）; 
 
 
} else {
 // first_name = fbUserName; 
 // lastName =; 
} 
 if（fbEmail！= null）{
 // SendValueToServer（fbUserName，first_name，lastName，fbEmail）; 
 Toast.makeText（getApplicationContext（），fbEmail+ fbEmail，Toast.LENGTH_SHORT）.show（）; 
} else {
 // SendValueToServer（fbUserName，first_name，lastName，）; 
 Toast.makeText（getApplicationContext（），fbEmail：+blank，Toast.LENGTH_SHORT）.show（）; 
} 
 
 
} catch（JSONException e）{
 e.printStackTrace（）; 
} 
} 
}）; 
 Bundle parameters = new Bundle（）; 
 parameters.putString（fields，id，name，email，gender，birthday）; 
 request.setParameters（parameters）; 
 request.executeAsync（）; 
} 
 
 @Override 
 public void onCancel（）{
 
} 
 
 @Override 
 public void onError（FacebookException e）{
 
} 
}）; 
 
 
} 
 
 
 
} 
  

AndroidManifest.xml

 <？xml version =1.0encoding =utf- 8\" >？; 
< manifest xmlns：android =http://schemas.android.com/apk/res/android
 package =test.technoexponent.com.test> 
 
< uses-permission android：name =android.permission.INTERNET/> 
 
< application 
 android：allowBackup =true
 android：icon =@ mipmap / ic_launcher
 android：label =@ string / app_name 
 android：supportsRtl =true
 android：theme =@ style / AppTheme> 
 
< activity android：name =test.technoexponent.com.test.MainActivity> 
< intent-filter> 
< action android：name =android.intent.action.MAIN/> 
 
< category android：name =android.intent.category.LAUNCHER/> 
< / intent-filter> 
< / activity> 
 
< 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/> 
<！ - 注意：这是自动生成的，为您的项目添加Google Play服务
应用程序索引。有关详细信息，请参阅https://g.co/AppIndexing/AndroidStudio。 - > 
 
< meta-data android：name =com.facebook.sdk.ApplicationIdandroid：value =@ string / facebook_app_id/> 
< / application> 
 
< / manifest> 
  

activity_main.xml

 < RelativeLayout xmlns：android =http://schemas.android.com/apk/res/android
 xmlns：facebook =http://schemas.android.com/apk / res-auto
 xmlns：tools =http://schemas.android.com/tools
 android：layout_width =match_parent
 android：layout_height =match_parent
 android：paddingBottom =@ dimen / activity_vertical_margin
 android：paddingLeft =@ dimen / activity_horizo​​ntal_margin
 android：paddingRight =@ dimen / activity_horizo​​ntal_margin
 android：paddingTop =@ dimen / activity_vertical_margin
 tools：context =com.example.myapp.MainActivity> 
 
< TextView 
 android：id =@ + id / txt
 android：layout_width =wrap_content
 android：layout_height =wrap_content
 android：text =Hello World！ 
 android：textSize =25sp
 android：layout_centerVertical =true
 android：layout_centerHorizo​​ntal =true/> 
 
< Button 
 android：id =@ + id / fb
 android：layout_width =fill_parent
 android：layout_height =wrap_content
 android：background =＃416BC1
 android：onClick =onClick
 android：text =FaceBook
 android：textColor =＃ffffff
 android： textStyle =bold/> 
< / RelativeLayout> 
  

设置，毕业

 包含'：app'，'：facebook-android-sdk-4.7.0'
  

I am using recent Fb SDK. I am doing fb integration in Android Studio. I have done all the steps from fb docs. But i didn't get the email id after successful login through fb.

Here is my MainActivity.java

package com.example.myapp;
import android.app.Activity;
import android.content.Intent;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;
import com.facebook.AccessToken;
import com.facebook.AccessTokenTracker;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.GraphRequest;
import com.facebook.GraphResponse;
import com.facebook.Profile;
import com.facebook.ProfileTracker;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;
import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;
import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.List;
public class MainActivity extends Activity {
    private CallbackManager callbackManager;
    Button fb;
    private AccessTokenTracker accessTokenTracker;
    private ProfileTracker profileTracker;
    LoginButton loginButton;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        FacebookSdk.sdkInitialize(this.getApplicationContext());
        setContentView(R.layout.activity_main);
//        fb = (Button)findViewById(R.id.button);
        callbackManager = CallbackManager.Factory.create();
        fb = (Button) findViewById(R.id.fb);
        loginButton = (LoginButton) findViewById(R.id.login_button);
        List< String > permissionNeeds = Arrays.asList("user_photos", "email",
                "user_birthday", "public_profile", "AccessToken");
        loginButton.registerCallback(callbackManager,
                new FacebookCallback < LoginResult > () {@Override
                                                         public void onSuccess(LoginResult loginResult) {
                    System.out.println("onSuccess");
                    String accessToken = loginResult.getAccessToken()
                            .getToken();
                    Log.i("accessToken", accessToken);
                    GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(),new GraphRequest.GraphJSONObjectCallback(){
                        @Override
                        public void onCompleted(JSONObject object, GraphResponse response) {
                            Log.i("LoginActivity",
                                    object.toString());
                            Toast.makeText(getApplicationContext(), object.toString(),Toast.LENGTH_LONG).show();
                            try {
                                String  id = object.getString("id").toString();
                                String name = object.getString("name");
                                String  email = object.getString("email");
                                String gender = object.getString("gender");
                                String birthday = object.getString("birthday");
                            } catch (JSONException e) {
                                e.printStackTrace();
                            }
                        }
                    });
                    Bundle parameters = new Bundle();
                    parameters.putString("fields",
                            "id,name,email,gender, birthday");
                    request.setParameters(parameters);
                    request.executeAsync();
                }
                    @Override
                    public void onCancel() {
                        System.out.println("onCancel");
                    }
                    @Override
                    public void onError(FacebookException exception) {
                        System.out.println("onError");
                        Log.v("LoginActivity", exception.getCause().toString());
                    }
                });
    }
    public void onClick(View v) {
        if (v == fb) {
            loginButton.performClick();
        }
    }
    @Override
    protected void onActivityResult(int requestCode, int responseCode,
                                    Intent data) {
        super.onActivityResult(requestCode, responseCode, data);
        callbackManager.onActivityResult(requestCode, responseCode, data);
    }
}

Here is My activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:facebook="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.myapp.MainActivity">

    <TextView
        android:id="@+id/txt"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!" />

    <FrameLayout
        android:id="@+id/FrameLayout1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_below="@+id/txt">

        <com.facebook.login.widget.LoginButton
            android:id="@+id/login_button"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:visibility="gone" />

        <Button
            android:id="@+id/fb"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:background="#416BC1"
            android:onClick="onClick"
            android:text="FaceBook"
            android:textColor="#ffffff"
            android:textStyle="bold" />
    </FrameLayout>

</RelativeLayout>

Here is my Mainifest

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.myapp">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <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" />
        <!-- ATTENTION: This was auto-generated to add Google Play services to your project for
             App Indexing.  See https://g.co/AppIndexing/AndroidStudio for more information. -->

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

</manifest>

Here is my build.gradle Module:app

apply plugin: 'com.android.application'

android {
    compileSdkVersion 23
    buildToolsVersion "23.0.2"

    defaultConfig {
        applicationId "com.example.myapp"
        minSdkVersion 15
        targetSdkVersion 23
        versionCode 1
        versionName "1.0"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
}

repositories {
    mavenCentral()
}

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    testCompile 'junit:junit:4.12'
    compile 'com.android.support:appcompat-v7:23.1.1'
    compile 'com.facebook.android:facebook-android-sdk:4.7.0'

}

As i response i get

12-03 21:28:10.452 8572-8572/? I/LoginActivity: {"id":"983511081738745","name":"Subhankar Chakraborty","gender":"male"}

If any question regarding my app please let me know.

解决方案

Try this it works for me hope so it will work for you as well I build in android studio.and sdk4.7.0

MainActivity.class

import android.app.Activity;
import android.content.Intent;
import android.support.v4.app.Fragment;
import android.os.Bundle;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.TextView;
import android.widget.Toast;

import com.facebook.AccessToken;
import com.facebook.AccessTokenTracker;
import com.facebook.CallbackManager;
import com.facebook.FacebookCallback;
import com.facebook.FacebookException;
import com.facebook.FacebookSdk;
import com.facebook.GraphRequest;
import com.facebook.GraphResponse;
import com.facebook.Profile;
import com.facebook.ProfileTracker;
import com.facebook.login.LoginManager;
import com.facebook.login.LoginResult;
import com.facebook.login.widget.LoginButton;


import org.json.JSONArray;
import org.json.JSONException;
import org.json.JSONObject;


import java.net.MalformedURLException;
import java.net.URL;
import java.util.Arrays;
import java.util.List;


public class MainActivity extends Activity {



    Button fb;

    private CallbackManager callbackManager;
    private LoginManager loginManager;
    private List<String> permissionNeeds= Arrays.asList("user_photos", "email", "user_birthday", "user_friends");
    private String fbUserId;
    private String fbUserName;
    private String fbEmail;
    private String fbGender;
    private String fbDob;
    TextView txt;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        FacebookSdk.sdkInitialize(this);
        callbackManager = CallbackManager.Factory.create();
        loginManager = LoginManager.getInstance();

        setContentView(R.layout.activity_main);
        fb = (Button)findViewById(R.id.button);
        txt=  (TextView)findViewById(R.id.txt);








    }
    public void onClick(View v) {
       /* if (v == fb) {
            loginButton.performClick();
        }*/
        FaceBookLogin();
    }


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

    }




    private void FaceBookLogin() {
        loginManager.logInWithReadPermissions(MainActivity.this, permissionNeeds);
        loginManager.registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
            @Override
            public void onSuccess(LoginResult loginResult) {
                GraphRequest request = GraphRequest.newMeRequest(
                        loginResult.getAccessToken(),
                        new GraphRequest.GraphJSONObjectCallback() {
                            @Override
                            public void onCompleted(
                                    JSONObject object,
                                    GraphResponse response) {

                                Log.v("LoginActivity", response.toString());


                                try {
                                    fbUserId = object.getString("id");
                                    fbUserName = object.getString("name");
                                    fbEmail = object.getString("email");
                                    fbGender = object.getString("gender");
                                    fbDob = object.getString("birthday");

                                    txt.setText(object.toString());

                                    if (fbUserName.contains(" ")) {
                                        String first_name = fbUserName.substring(0, fbUserName.indexOf(' '));
                                        String lastName = fbUserName.substring(fbUserName.indexOf(' ') + 1);


                                    } else {
                                       // first_name = fbUserName;
                                        //lastName = " ";
                                    }
                                    if (fbEmail != null) {
                                       // SendValueToServer(fbUserName, first_name, lastName, fbEmail);
                                        Toast.makeText(getApplicationContext(),"fbEmail"+fbEmail,Toast.LENGTH_SHORT).show();
                                    } else {
                                       // SendValueToServer(fbUserName, first_name, lastName, " ");
                                        Toast.makeText(getApplicationContext(),"fbEmail:"+"blank",Toast.LENGTH_SHORT).show();
                                    }


                                } catch (JSONException e) {
                                    e.printStackTrace();
                                }
                            }
                        });
                Bundle parameters = new Bundle();
                parameters.putString("fields", "id,name,email,gender,birthday");
                request.setParameters(parameters);
                request.executeAsync();
            }

            @Override
            public void onCancel() {

            }

            @Override
            public void onError(FacebookException e) {

            }
        });


    }



}

AndroidManifest.xml

<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="test.technoexponent.com.test">

    <uses-permission android:name="android.permission.INTERNET"/>

    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">

        <activity android:name="test.technoexponent.com.test.MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />

                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>

        <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" />
        <!-- ATTENTION: This was auto-generated to add Google Play services to your project for
             App Indexing.  See https://g.co/AppIndexing/AndroidStudio for more information. -->

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

</manifest>

activity_main.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:facebook="http://schemas.android.com/apk/res-auto"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.myapp.MainActivity">

    <TextView
        android:id="@+id/txt"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="Hello World!"
        android:textSize="25sp"
        android:layout_centerVertical="true"
        android:layout_centerHorizontal="true" />

  <Button
            android:id="@+id/fb"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:background="#416BC1"
            android:onClick="onClick"
            android:text="FaceBook"
            android:textColor="#ffffff"
            android:textStyle="bold" />
</RelativeLayout>

setting,gradle

include ':app', ':facebook-android-sdk-4.7.0'

这篇关于在Android中通过fb登录后无法获取emailId的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！