使用facebook sdk共享首选项登录并获取有关用户的信息

我正在开发一个可以登录Facebook的应用程序。我正在尝试获取用户信息并将其发送到我的server.i正在使用sdk 4.我正在尝试使用共享首选项来保存信息，但是我不知道共享首选项。这是我的Facebook登录活动。这是启动器活动。

public class LoginActivity extends  AbsRuntimePermission {
private static final int REQUEST_Permission =10;


    private TextView info;
    private LoginButton loginButton;
    private CallbackManager callbackManager;
    private SparseIntArray mErrorString;
    private Button facebook_button;
    ProgressDialog progress;
    private String facebook_id,f_name,m_name,l_name,gender,profile_image,full_name,email_id;

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_login);
    //for permission in manifest file cause it is launch activity

    requestAppPermissions(new String[]{
            Manifest.permission.ACCESS_FINE_LOCATION,
            Manifest.permission.ACCESS_COARSE_LOCATION,
            Manifest.permission.CALL_PHONE,
            Manifest.permission.INTERNET},R.string.msg,REQUEST_Permission);

    //facebook
    info = (TextView) findViewById(R.id.info);
    loginButton = (LoginButton) findViewById(R.id.login_button);
    progress = new ProgressDialog(LoginActivity.this);
    progress.setMessage(getResources().getString(R.string.please_wait_facebooklogin));
    progress.setIndeterminate(false);
    progress.setCancelable(false);

    facebook_id=f_name=m_name=l_name=gender=profile_image=full_name=email_id="";

    //facebook sdk
    FacebookSdk.sdkInitialize(getApplicationContext());
    callbackManager = CallbackManager.Factory.create();

    //register callback object for facebook result

    LoginManager.getInstance().registerCallback(callbackManager, new FacebookCallback<LoginResult>() {
        @Override
        public void onSuccess(LoginResult loginResult) {
            progress.show();
            Profile profile = Profile.getCurrentProfile();
            if(profile != null){
                facebook_id = profile.getId();
                f_name=profile.getFirstName();
                m_name=profile.getMiddleName();
                l_name=profile.getLastName();
                profile_image=profile.getProfilePictureUri(400,400).toString();
            }
            //show Toast
            GraphRequest request =GraphRequest.newMeRequest(AccessToken.getCurrentAccessToken(),
                    new GraphRequest.GraphJSONObjectCallback(){
                        @Override
                        public void onCompleted(JSONObject object, GraphResponse response) {
                            try {
                                email_id = object.getString("email");
                                gender = object.getString("gender");
                                String Profile_name = object.getString("name");
                                long fb_id = object.getLong("id"); //use this for logout

                                //Starting a new activity using this information
                                Intent i = new Intent(LoginActivity.this, MainActivity.class);
                                i.putExtra("type", "facebook");
                                i.putExtra("Facebook_id", facebook_id);
                                i.putExtra("f_name", f_name);
                                i.putExtra("m_name", m_name);
                                i.putExtra("l_name", l_name);
                                i.putExtra("full_name", full_name);
                                i.putExtra("Profile_image", profile_image);
                                i.putExtra("email_id", email_id);
                                i.putExtra("gender", gender);

                                progress.dismiss();
                                startActivity(i);
                                finish();

                            }catch (JSONException e){
                                e.printStackTrace();
                            }
                        }
                    });
            request.executeAsync();
        }

        @Override
        public void onCancel() {
        Toast.makeText(LoginActivity.this,getResources().getString(R.string.login_canceled_facebooklogin),Toast.LENGTH_SHORT).show();
        progress.dismiss();
        }

        @Override

        public void onError(FacebookException error) {
            Toast.makeText(LoginActivity.this,getResources().getString(R.string.login_failed_facebooklogin),Toast.LENGTH_SHORT).show();
            progress.dismiss();
        }
    });

    //facebook button click
    facebook_button.setOnClickListener(new View.OnClickListener(){
        @Override
        public void onClick(View view) {
            LoginManager.getInstance().logInWithReadPermissions(LoginActivity.this, Arrays.asList("public_profile","user_friends","email"));

        }
    });
}

private void logoutFromFacebook(){
    try{
        if(AccessToken.getCurrentAccessToken()==null){
            return;
        }

    }
}

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

@Override
public void onPermissionGranted(int requestCode) {

    //anything after permission Granted
    Toast.makeText(getApplicationContext(),"Permission granted",Toast.LENGTH_LONG).show();

}



public void goTo(View view) {
    Intent intent = new Intent(this, MainActivity.class);
    this.startActivity(intent);
}

}