無法使用Facebook4j註銷

Question

我正在使用Facebook4j庫將Facebook與我的Android應用程序進行整合。 我在https://github.com/roundrop/facebook4j-android-example的示例後成功登錄，但我沒有找到有關如何註銷的任何文檔或示例。

有什麼建議嗎？

Answer 1

您可以在下面的代碼只是添加到您的註銷的onclick

fbLogout.setOnClickListener(new View.OnClickListener() { 
     @Override 
     public void onClick(View arg0) { 
      clearApplicationData(); 
      FBHandler.getInstance(this).facebookLogout(); 
     } 
    }); 

，並創建像下面

public class FBHandler { 
private static final String TAG = "FBHandler"; 
private static final String appKey = "Your App Key"; 
private static Facebook facebook = null; 
private static FBHandler _instance = null; 
private static Context context = null; 
private static String[] permissions = null; 

private FBHandler() { 
} 

public static FBHandler getInstance(Context ctx) { 
    if (ctx == null) { 
     Log.d(TAG, 
       "Error: Context is null, hence returning from the FBHandler"); 
     return null; 
    } 

    context = ctx; 
    if (_instance == null) { 
     facebook = new Facebook(appKey); 
     _instance = new FBHandler(); 
     permissions = new String[] { "publish_stream", "user_photos", 
       "publish_checkins", "email", "publish_actions" }; 
    } 

    return _instance; 
} 

public void doPrintoFbUserLogin(final Activity activity, 
     final fbListner listner) { 
    if (activity == null || listner == null) { 
     Log.d(TAG, "Error: User Login activity/Listner is null"); 
     return; 
    } 

    facebook.authorize(activity, permissions, new DialogListener() { 

     public void onComplete(Bundle values) { 
      printoCommon.showToastMsg(activity, 
        "facebook Login is succeesfull"); 
      listner.onSuccess(); 

     } 

     public void onFacebookError(FacebookError e) { 
      printoCommon.showToastMsg(activity, e.getMessage()); 

     } 

     public void onError(DialogError e) { 

      printoCommon.showToastMsg(activity, e.getMessage()); 
     } 

     public void onCancel() { 
      printoCommon.showToastMsg(activity, 
        "Facebook Login is cancelled"); 

     } 

    }); 
} 

@SuppressWarnings("static-access") 
public void uploadUserPhoto(String graphAction, final Activity activity, 
     Bundle params, uploadListner listner) { 

    AsyncFacebookRunner fbAsyncRun = new AsyncFacebookRunner(facebook); 
    params.putString(facebook.TOKEN, facebook.getAccessToken()); 
    fbAsyncRun.request("me/" + graphAction, params, "POST", 
      new photoUploadListener(activity), null); 
} 

public void facebookLogout() { 

    AsyncFacebookRunner fbAsyncRun = new AsyncFacebookRunner(facebook); 
    fbAsyncRun.logout(context, new AsyncFacebookRunner.RequestListener() { 

     public void onMalformedURLException(MalformedURLException e, 
       Object state) { 
      printoCommon.showToastMsg((Activity) context, e.getMessage()); 
     } 

     public void onIOException(IOException e, Object state) { 
      printoCommon.showToastMsg((Activity) context, e.getMessage()); 
     } 

     public void onFileNotFoundException(FileNotFoundException e, 
       Object state) { 
      printoCommon.showToastMsg((Activity) context, e.getMessage()); 
     } 

     public void onFacebookError(FacebookError e, Object state) { 
      printoCommon.showToastMsg((Activity) context, e.getMessage()); 
     } 

     public void onComplete(String response, Object state) { 
      printoCommon.showToastMsg((Activity) context, 
        "You have logged out from facebook Successfully"); 
      ((Activity) context).finish(); 
     } 
    }); 
} 
}