Facebook status update automatically android

问题

I need a some code to update the facebook status [Already mentioned string value] automatically of a user when he/she clicks in a button! I am using a facebook sdk3.6.0.

All set, good to go!! I have two java classes one is for Main menu [Main.java which includes the button], and the other one is in the options menu [FbConnect.java- in which the user can connect to the facebook and the token will be saved to sharedprefernces]. Now the thing is that, Firstly user goes to the options menu and clicks on the FbConnect.java menu item and connect to facebook, and coming back to the Main menu. When the user clicks on the button in the main menu a status message have to be updated to the facebook automatically with out relogin or doing anythging!

How to get the access_token and related values to the main menu?

Help me out with the proper android code!

My FbConnect.java Class.

package com.alvin.hii;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;
import com.facebook.*;
import com.facebook.android.DialogError;
import com.facebook.android.Facebook;
import com.facebook.android.Facebook.DialogListener;
import com.facebook.android.FacebookError;
import com.facebook.model.*;

public class FbConnect extends Activity {
    private Facebook facebook;
    private String messageToPost;
    private static final String APP_ID = "my_appid";
    private static final String[] PERMISSIONS = new String[] { "publish_stream" };
    private static final String TOKEN = "access_token";
    private static final String EXPIRES = "expires_in";
    private static final String KEY = "facebook-credentials";


      @Override
      public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.facebook);

        facebook = new Facebook(APP_ID);
        restoreCredentials(facebook);

        Session.openActiveSession(this, true, new Session.StatusCallback() {

            // callback when session changes state
            @Override
            public void call(Session session, SessionState state, Exception exception) {
              if (session.isOpened()) {

                // make request to the /me API
                Request.executeMeRequestAsync(session, new Request.GraphUserCallback() {

                  // callback after Graph API response with user object
                  @Override
                  public void onCompleted(GraphUser user, Response response) {
                    if (user != null) {
                      TextView welcome = (TextView) findViewById(R.id.welcome);
                      welcome.setText("Hello " +user +"!");
                    }
                  }
                });
              }
            }
          });
        }

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






    public boolean saveCredentials(Facebook facebook) {
        Editor editor = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE).edit();
        editor.putString(TOKEN, facebook.getAccessToken());
        editor.putLong(EXPIRES, facebook.getAccessExpires());
        return editor.commit();
    }

    public boolean restoreCredentials(Facebook facebook) {
        SharedPreferences sharedPreferences = getApplicationContext().getSharedPreferences(KEY, Context.MODE_PRIVATE);
        facebook.setAccessToken(sharedPreferences.getString(TOKEN, null));
        facebook.setAccessExpires(sharedPreferences.getLong(EXPIRES, 0));
        return facebook.isSessionValid();
    }





    class LoginDialogListener implements DialogListener {
        public void onComplete(Bundle values) {
            saveCredentials(facebook);

        }

        public void onFacebookError(FacebookError error) {
            showToast("Authentication with Facebook failed!");
        }

        public void onError(DialogError error) {
            showToast("Authentication with Facebook failed!");
        }

        public void onCancel() {
            showToast("Authentication with Facebook cancelled!");
        }
    }

    private void showToast(String message) {
        Toast.makeText(getApplicationContext(), message, Toast.LENGTH_SHORT)
                    .show();
    }
}

My Main.java Class

package com.alvin.hii;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.Toast;

public class Main extends Activity {

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



        Button hee = (Button) findViewById(R.id.button1);
        hee.setOnClickListener(new OnClickListener() {

            @Override
            public void onClick(View v) {





facebook.authorize(this, new String[]{"publish_stream"}, new DialogListener(){

        @Override
        public void onComplete(Bundle values) {
            updateStatus(values.getString(Facebook.TOKEN));
        }

        @Override
        public void onFacebookError(FacebookError e) {
            Log.d("FACEBOOK ERROR","FB ERROR. MSG: "+e.getMessage()+", CAUSE: "+e.getCause());
        }

        @Override
        public void onError(DialogError e) {
            Log.e("ERROR","AUTH ERROR. MSG: "+e.getMessage()+", CAUSE: "+e.getCause());
        }

        @Override
        public void onCancel() {
            Log.d("CANCELLED","AUTH CANCELLED");
        }
    });



//updating Status
public void updateStatus(String accessToken){
    try {
        Bundle bundle = new Bundle();
        bundle.putString("message", "test update");
        bundle.putString(Facebook.TOKEN,accessToken);
        String response = facebook.request("me/feed",bundle,"POST");
        Log.d("UPDATE RESPONSE",""+response);
    } catch (MalformedURLException e) {
        Log.e("MALFORMED URL",""+e.getMessage());
    } catch (IOException e) {
        Log.e("IOEX",""+e.getMessage());
    }
}

}









@Override
public boolean onCreateOptionsMenu(Menu menu) {
    // TODO Auto-generated method stub
       MenuInflater inflator = getMenuInflater();
       inflator.inflate(R.menu.my_menu, menu);
    return true;
}

   @Override
public boolean onOptionsItemSelected(MenuItem item) {
    // TODO Auto-generated method stub
       if(item.getItemId() == R.id.fb)
       {
           Intent fb = new Intent(Main.this, FbConnect.class);
           startActivity(fb);
       }

来源：https://stackoverflow.com/questions/21055126/facebook-status-update-automatically-android