图形API没有从Android SDK中的Facebook SDK获取位置

Question

我在我的Android应用程序中使用Facebook SDK。我需要获取用户的所有信息。现在，我可以获得用户的姓名ID电子邮件生日和个人资料图片。我需要得到的最后一个是用户的位置或当前位置。我在下面使用这个代码。

if(fb.isSessionValid()){ 
      button.setImageResource(R.drawable.logout_button); 

      JSONObject obj = null; 
      URL img = null; 


      try { 
        String jsonUser = fb.request("me"); 
        obj = Util.parseJson(jsonUser); 
        String id = obj.optString("id"); 
        String name = obj.optString("name"); 
        String bday = obj.optString("birthday"); 
        String address = obj.optString("location"); 
        String email = obj.optString("email"); 
        ((TextView) findViewById(R.id.txt)).setText("Welcome! "+name); 
        ((TextView) findViewById(R.id.txtbday)).setText("Birthday: "+bday); 
        ((TextView) findViewById(R.id.txtaddress)).setText("Address: "+address); 
        ((TextView) findViewById(R.id.txtemail)).setText("Email: "+email); 
        img = new URL("http://graph.facebook.com/"+id+"/picture?type=normal"); 
        Bitmap bmp = BitmapFactory.decodeStream(img.openConnection().getInputStream()); 
        pic.setImageBitmap(bmp); 

       } catch (FacebookError e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } catch (JSONException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } catch (MalformedURLException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } catch (IOException e) { 
        // TODO Auto-generated catch block 
        e.printStackTrace(); 
       } 



     }else{ 
      button.setImageResource(R.drawable.login_button); 
     } 
    } 

这里有权限

fb.authorize(MainActivity.this,new String[] {"email", "user_location", "user_birthday","publish_stream"}, new DialogListener() { 

       public void onFacebookError(FacebookError e) { 
        // TODO Auto-generated method stub 
        Toast.makeText(getApplicationContext(), ""+e, Toast.LENGTH_SHORT).show(); 
        e.printStackTrace(); 
       } 

       public void onError(DialogError e) { 
        // TODO Auto-generated method stub 
        //Toast.makeText(getApplicationContext(), "Error", Toast.LENGTH_SHORT).show();  
       } 

       public void onComplete(Bundle values) { 
        // TODO Auto-generated method stub 
        Editor editor = sp.edit(); 
        editor.putString("access_token", fb.getAccessToken()); 
        editor.putLong("access_expires", fb.getAccessExpires()); 
        editor.commit(); 
        updateButtonImage(); 
       } 

       public void onCancel() { 
        // TODO Auto-generated method stub 
        Toast.makeText(getApplicationContext(), "Cancel", Toast.LENGTH_SHORT).show(); 
       } 
      }); 
     } 

感谢谁将会在先进的帮助。

Answer 1

图形API浏览器工具是查看图形API端点响应的好方法。只需点击“Get Access Token”即可请求正确的权限（例如user_location），并查看“/ me”的输出。当我与user_location权限的访问令牌，我能看到我目前的

https://developers.facebook.com/tools/explorer/?method=GET&path=me

要获取当前位置，这是如何做到这一点：

String currentCity = obj.getJSONObject("location").getString("name"); 

对于较新的SDK你可以通过如下图形API对象获取位置详细信息：

graphObject.getInnerJSONObject().getJSONObject("location").getString("id")) 

Answer 2

从这里下载源代码（Get location of facebook user using Graph API in android）

activity_main.xml中

<LinearLayout android:layout_width="match_parent" 
    android:layout_height="match_parent" 
    android:orientation="vertical" 
    xmlns:android="http://schemas.android.com/apk/res/android"> 


    <ImageView 
     android:layout_width="100dp" 
     android:layout_height="100dp" 
     android:id="@+id/iv_image" 
     android:layout_marginTop="10dp" 
     android:layout_marginBottom="10dp" 
     android:layout_gravity="center_horizontal" 
     android:src="@drawable/profile"/> 


    <LinearLayout 
     android:layout_width="match_parent" 
     android:orientation="horizontal" 
     android:layout_height="wrap_content"> 
     <TextView 
      android:layout_width="100dp" 
      android:layout_height="40dp" 
      android:text="Name" 
      android:gravity="center_vertical" 
      android:textSize="15dp" 
      android:textColor="#000000" 

      android:layout_marginLeft="10dp" 
      android:layout_marginTop="10dp"/> 

     <TextView 
      android:layout_width="wrap_content" 
      android:layout_height="40dp" 
      android:text="Name" 
      android:textSize="15dp" 
      android:id="@+id/tv_name" 
      android:gravity="center_vertical" 
      android:textColor="#000000" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="10dp"/> 

    </LinearLayout> 


    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 

    <TextView 
     android:layout_width="100dp" 
     android:layout_height="40dp" 
     android:text="Email" 
     android:gravity="center_vertical" 
     android:textSize="15dp" 
     android:layout_below="@+id/tv_name" 
     android:textColor="#000000" 
     android:layout_marginLeft="10dp" 
     android:layout_marginTop="10dp"/> 

    <TextView 
     android:layout_width="wrap_content" 
     android:layout_height="40dp" 
     android:layout_below="@+id/tv_name" 
     android:text="Email" 
     android:gravity="center_vertical" 
     android:textSize="15dp" 
     android:id="@+id/tv_email" 
     android:textColor="#000000" 
     android:layout_marginLeft="10dp" 
     android:layout_marginTop="10dp"/> 
    </LinearLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 

     <TextView 
      android:layout_width="100dp" 
      android:layout_height="40dp" 
      android:text="DOB" 
      android:gravity="center_vertical" 
      android:textSize="15dp" 
      android:textColor="#000000" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="10dp"/> 

     <TextView 
      android:layout_width="wrap_content" 
      android:layout_height="40dp" 
      android:layout_below="@+id/tv_name" 
      android:text="DOB" 
      android:gravity="center_vertical" 
      android:textSize="15dp" 
      android:id="@+id/tv_dob" 
      android:layout_toRightOf="@+id/tv_email" 
      android:textColor="#000000" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="10dp"/> 
    </LinearLayout> 

    <LinearLayout 
     android:layout_width="match_parent" 
     android:layout_height="wrap_content" 
     android:orientation="horizontal"> 

     <TextView 
      android:layout_width="100dp" 
      android:layout_height="40dp" 
      android:text="Location" 
      android:gravity="center_vertical" 
      android:textSize="15dp" 
      android:textColor="#000000" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="10dp"/> 

     <TextView 
      android:layout_width="wrap_content" 
      android:layout_height="40dp" 
      android:layout_below="@+id/tv_name" 
      android:text="location" 
      android:gravity="center_vertical" 
      android:textSize="15dp" 
      android:id="@+id/tv_location" 
      android:textColor="#000000" 
      android:layout_marginLeft="10dp" 
      android:layout_marginTop="10dp"/> 
    </LinearLayout> 


    <LinearLayout 
     android:layout_width="match_parent" 
     android:background="#6585C8" 
     android:id="@+id/ll_facebook" 
     android:layout_marginLeft="10dp" 
     android:layout_marginRight="10dp" 
     android:layout_marginTop="40dp" 
     android:layout_height="50dp"> 

     <ImageView 
      android:layout_width="50dp" 
      android:src="@drawable/facebook" 
      android:id="@+id/iv_facebook" 
      android:layout_height="50dp" /> 

     <TextView 
      android:layout_width="wrap_content" 
      android:layout_height="wrap_content" 
      android:text="Login with Facebook" 
      android:textSize="20dp" 
      android:textColor="#FFFFFF" 
      android:textStyle="bold" 
      android:id="@+id/tv_facebook" 
      android:layout_marginLeft="20dp" 
      android:gravity="center" 
      android:layout_gravity="center" 

      /> 

    </LinearLayout> 

    </LinearLayout> 

MainActivity.java

package facebooklocation.facebooklocation; 

import android.content.Intent; 
import android.content.pm.PackageInfo; 
import android.content.pm.PackageManager; 
import android.content.pm.Signature; 
import android.support.v7.app.AppCompatActivity; 
import android.os.Bundle; 
import android.util.Base64; 
import android.util.Log; 
import android.view.View; 
import android.widget.ImageView; 
import android.widget.LinearLayout; 
import android.widget.TextView; 
import com.bumptech.glide.Glide; 
import com.facebook.AccessToken; 
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.HttpMethod; 
import com.facebook.login.LoginManager; 
import com.facebook.login.LoginResult; 
import org.json.JSONObject; 
import java.security.MessageDigest; 
import java.security.NoSuchAlgorithmException; 
import java.util.Arrays; 

public class MainActivity extends AppCompatActivity implements View.OnClickListener { 

    CallbackManager callbackManager; 
    ImageView iv_image, iv_facebook; 
    TextView tv_name, tv_email, tv_dob, tv_location, tv_facebook; 
    LinearLayout ll_facebook; 
    String str_facebookname, str_facebookemail, str_facebookid, str_birthday, str_location; 
    boolean boolean_login; 

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

     init(); 
     getKeyHash(); 
     listener(); 
    } 


    private void init() { 
     iv_image = (ImageView) findViewById(R.id.iv_image); 
     iv_facebook = (ImageView) findViewById(R.id.iv_facebook); 
     tv_name = (TextView) findViewById(R.id.tv_name); 
     tv_email = (TextView) findViewById(R.id.tv_email); 
     tv_dob = (TextView) findViewById(R.id.tv_dob); 
     tv_location = (TextView) findViewById(R.id.tv_location); 
     tv_facebook = (TextView) findViewById(R.id.tv_facebook); 
     ll_facebook = (LinearLayout) findViewById(R.id.ll_facebook); 
     FacebookSdk.sdkInitialize(this.getApplicationContext()); 
    } 

    private void listener() { 
     tv_facebook.setOnClickListener(this); 
     ll_facebook.setOnClickListener(this); 
     iv_facebook.setOnClickListener(this); 

    } 

    private void facebookLogin() { 
     callbackManager = CallbackManager.Factory.create(); 
     LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() { 
      @Override 
      public void onSuccess(LoginResult loginResult) { 
       Log.e("ONSUCCESS", "User ID: " + loginResult.getAccessToken().getUserId() 
         + "\n" + "Auth Token: " + loginResult.getAccessToken().getToken() 
       ); 
       GraphRequest request = GraphRequest.newMeRequest(loginResult.getAccessToken(), 
         new GraphRequest.GraphJSONObjectCallback() { 
          @Override 
          public void onCompleted(JSONObject object, GraphResponse response) { 
           try { 

            boolean_login = true; 
            tv_facebook.setText("Logout from Facebook"); 

            Log.e("object", object.toString()); 
            str_facebookname = object.getString("name"); 

            try { 
             str_facebookemail = object.getString("email"); 
            } catch (Exception e) { 
             str_facebookemail = ""; 
             e.printStackTrace(); 
            } 

            try { 
             str_facebookid = object.getString("id"); 
            } catch (Exception e) { 
             str_facebookid = ""; 
             e.printStackTrace(); 

            } 


            try { 
             str_birthday = object.getString("birthday"); 
            } catch (Exception e) { 
             str_birthday = ""; 
             e.printStackTrace(); 
            } 

            try { 
             JSONObject jsonobject_location = object.getJSONObject("location"); 
             str_location = jsonobject_location.getString("name"); 

            } catch (Exception e) { 
             str_location = ""; 
             e.printStackTrace(); 
            } 

            fn_profilepic(); 

           } catch (Exception e) { 

           } 
          } 
         }); 
       Bundle parameters = new Bundle(); 
       parameters.putString("fields", "id, name, email,gender,birthday,location"); 

       request.setParameters(parameters); 
       request.executeAsync(); 
      } 

      @Override 
      public void onCancel() { 
       if (AccessToken.getCurrentAccessToken() == null) { 
        return; // already logged out 
       } 
       new GraphRequest(AccessToken.getCurrentAccessToken(), "/me/permissions/", null, HttpMethod.DELETE, new GraphRequest 
         .Callback() { 
        @Override 
        public void onCompleted(GraphResponse graphResponse) { 
         LoginManager.getInstance().logOut(); 
         LoginManager.getInstance().logInWithReadPermissions(MainActivity.this, Arrays.asList("public_profile,email")); 
         facebookLogin(); 

        } 
       }).executeAsync(); 


      } 

      @Override 
      public void onError(FacebookException e) { 
       Log.e("ON ERROR", "Login attempt failed."); 


       AccessToken.setCurrentAccessToken(null); 
       LoginManager.getInstance().logInWithReadPermissions(MainActivity.this, Arrays.asList("public_profile,email,user_birthday")); 
      } 
     }); 
    } 

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

     try { 
      callbackManager.onActivityResult(requestCode, resultCode, data); 
     } catch (Exception e) { 

     } 

    } 

    private void getKeyHash() { 
     // Add code to print out the key hash 
     try { 
      PackageInfo info = getPackageManager().getPackageInfo("facebooklocation.facebooklocation", PackageManager.GET_SIGNATURES); 
      for (Signature signature : info.signatures) { 
       MessageDigest md = MessageDigest.getInstance("SHA"); 
       md.update(signature.toByteArray()); 
       Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT)); 
      } 
     } catch (PackageManager.NameNotFoundException e) { 

     } catch (NoSuchAlgorithmException e) { 

     } 
    } 

    private void fn_profilepic() { 

     Bundle params = new Bundle(); 
     params.putBoolean("redirect", false); 
     params.putString("type", "large"); 
     new GraphRequest(
       AccessToken.getCurrentAccessToken(), 
       "me/picture", 
       params, 
       HttpMethod.GET, 
       new GraphRequest.Callback() { 
        public void onCompleted(GraphResponse response) { 

         Log.e("Response 2", response + ""); 

         try { 
          String str_facebookimage = (String) response.getJSONObject().getJSONObject("data").get("url"); 
          Log.e("Picture", str_facebookimage); 

          Glide.with(MainActivity.this).load(str_facebookimage).skipMemoryCache(true).into(iv_image); 

         } catch (Exception e) { 
          e.printStackTrace(); 
         } 

         tv_name.setText(str_facebookname); 
         tv_email.setText(str_facebookemail); 
         tv_dob.setText(str_birthday); 
         tv_location.setText(str_location); 

        } 
       } 
     ).executeAsync(); 
    } 


    @Override 
    public void onClick(View view) { 

     if (boolean_login) { 
      boolean_login = false; 
      LoginManager.getInstance().logOut(); 
      tv_location.setText(""); 
      tv_dob.setText(""); 
      tv_email.setText(""); 
      tv_name.setText(""); 
      Glide.with(MainActivity.this).load(R.drawable.profile).into(iv_image); 
      tv_facebook.setText("Login with Facebook"); 
     } else { 
      LoginManager.getInstance().logInWithReadPermissions(MainActivity.this, Arrays.asList("public_profile,email,user_birthday,user_location")); 
      facebookLogin(); 
     } 


    } 


    @Override 
    protected void onDestroy() { 
     super.onDestroy(); 
     LoginManager.getInstance().logOut(); 
    } 
} 

谢谢！