如何从Facebook获取ParseUser的名称？

Question

我在尝试获取通过Facebook登录的Parse用户的名称时遇到很大问题。

登录工作正常，我可以在解析数据浏览器上看到用户令牌，ParseUser.getCurrentUser返回一个ParseUser和所有，但我不知道我可以从Facebook获取用户名吗？

到目前为止，我的代码是

ParseFacebookUtils.logIn(C_RegisterLogin.this, new LogInCallback() 
{ 
    @Override 
    public void done(ParseUser user, ParseException err) 
    { 
     progressdialog.dismiss(); 

     if (user == null) 
     { 
      Toast toast = Toast.makeText(getApplicationContext(), "Login via Facebook failed!", Toast.LENGTH_LONG); 
      toast.setGravity(Gravity.TOP, 0, 20); 
      toast.show(); 
     } 
     else 
     { 
      if (user.isNew()) 
      { 
      } 

      List args = new ArrayList<String>(); 
      args.add("name"); 
      JSONObject result = new JSONObject(ParseFacebookUtils.getSession().requestNewReadPermissions(C_RegisterLogin.this, args); 
      String facebookname = result.optString("name"); 

      Toast toast = Toast.makeText(getApplicationContext(), "Thanks, "+facebookname+". You are now successfully logged in!", Toast.LENGTH_LONG); 
      toast.setGravity(Gravity.TOP, 0, 20); 
      toast.show(); 
      finish(); 
      startActivity(new Intent(C_RegisterLogin.this, E_SelectJourney.class)); 
     } 
    } 
}); 

Answer 1

解决了这个问题，只是需要它来使用Request.executeMeRequestAsync从Facebook和它的会话参数，我使用会话解析给我：d

if (ParseFacebookUtils.getSession().isOpened()) 
{ 
    Request.executeMeRequestAsync(ParseFacebookUtils.getSession(), new Request.GraphUserCallback() 
    { 
     @Override 
     public void onCompleted(GraphUser user, Response response) 
     { 
      if (user != null) 
      { 
       progressdialog.dismiss(); 
       Toast toast = Toast.makeText(getApplicationContext(), "Thanks, " + user.getName() + ". You are now successfully logged in through Facebook!", Toast.LENGTH_LONG); 
       toast.setGravity(Gravity.TOP, 0, 20); 
       toast.show(); 
       finish(); 
       startActivity(new Intent(C_RegisterLogin.this, E_SelectJourney.class)); 
      } 
     } 
    }); 
} 

Answer 2

的Request.executeMeRequestAsync方法已depreacated所以对于Facebok的SDK 3.21，您需要使用

if (ParseFacebookUtils.getSession().isOpened()){ 
Request.newMeRequest(ParseFacebookUtils.getSession(), new Request.GraphUserCallback() 
{ 
    @Override 
    public void onCompleted(GraphUser user, Response response) 
    { 
     if (user != null) 
     { 
      progressdialog.dismiss(); 
      Toast toast = Toast.makeText(getApplicationContext(), "Thanks, " + user.getName() + ". You are now successfully logged in through Facebook!", Toast.LENGTH_LONG); 
      toast.setGravity(Gravity.TOP, 0, 20); 
      toast.show(); 
      finish(); 
      startActivity(new Intent(C_RegisterLogin.this, E_SelectJourney.class)); 
     } 
    } 
}).executeAsync();}