package net.teerapap.whatnext.view;

import android.app.Activity;
import android.app.Fragment;
import android.app.FragmentManager;
import android.content.Intent;
import android.content.res.Configuration;
import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.view.GravityCompat;
import android.support.v4.widget.DrawerLayout;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;

import net.teerapap.whatnext.R;

public class MainActivity extends Activity {

    private String[] mMenuItems;
    private DrawerLayout mDrawerLayout;
    private ListView mDrawerList;
    private ActionBarDrawerToggle mDrawerToggle;

    private WhatNextFragment whatNextFragment;
    private DoneFragment doneFragment;

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

        mMenuItems = getResources().getStringArray(R.array.menu_items);
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerList = (ListView) findViewById(R.id.left_drawer);

        // set a custom shadow that overlays the main content when the drawer opens
        mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START);
        // set up the drawer's list view with items and click listener
        mDrawerList.setAdapter(new ArrayAdapter<String>(this,
                R.layout.drawer_list_item, mMenuItems));
        mDrawerList.setOnItemClickListener(new ListView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
                openMenu(position);
                mDrawerLayout.closeDrawer(mDrawerList);
            }
        });

        // enable ActionBar app icon to behave as action to toggle nav drawer
        getActionBar().setDisplayHomeAsUpEnabled(true);
        getActionBar().setHomeButtonEnabled(true);

        // ActionBarDrawerToggle ties together the the proper interactions
        // between the sliding drawer and the action bar app icon
        mDrawerToggle = new ActionBarDrawerToggle(
                this,                  /* host Activity */
                mDrawerLayout,         /* DrawerLayout object */
                R.drawable.ic_drawer,  /* nav drawer image to replace 'Up' caret */
                R.string.drawer_open,  /* description for accessibility */
                R.string.drawer_close  /* description for accessibility */
        );
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        // Create static fragment
        whatNextFragment = WhatNextFragment.newInstance();
        doneFragment = DoneFragment.newInstance();

        if (savedInstanceState == null) {
            mDrawerList.setItemChecked(0, true);
            openMenu(0);
        }
    }

    /**
     * When using the ActionBarDrawerToggle, you must call it during
     * onPostCreate() and onConfigurationChanged()...
     */
    @Override
    protected void onPostCreate(Bundle savedInstanceState) {
        super.onPostCreate(savedInstanceState);
        // Sync the toggle state after onRestoreInstanceState has occurred.
        mDrawerToggle.syncState();
    }

    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        super.onConfigurationChanged(newConfig);
        // Pass any configuration change to the drawer toggles
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        MenuInflater inflater = getMenuInflater();
        inflater.inflate(R.menu.main, menu);
        return super.onCreateOptionsMenu(menu);
    }

    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        // The action bar home/up action should open or close the drawer.
        // ActionBarDrawerToggle will take care of this.
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        // Handle action buttons
        switch(item.getItemId()) {
            case R.id.action_new_task:
                // Start new tasks activity
                Intent intent = new Intent(this, NewTaskActivity.class);
                startActivity(intent);
                overridePendingTransition(R.anim.abc_fade_in, R.anim.abc_fade_out);
                return true;
            default:
                return super.onOptionsItemSelected(item);
        }
    }

    /**
     * Open menu at position.
     * @param position
     */
    public void openMenu(int position) {
        // update the main content by replacing fragments
        Fragment fragment;

        switch (position) {
            case 0:
                fragment = this.whatNextFragment;
                break;
            case 1:
                fragment = this.doneFragment;
                break;
            default:
                return;
        }

        // Replace current fragment
        FragmentManager fragmentManager = getFragmentManager();
        fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit();
    }

}

@@ -854,17 +854,18 @@
 ragment 
-w
+mW
 hatNextF
@@ -898,17 +898,18 @@
 ragment 
-d
+mD
 oneFragm
@@ -2811,17 +2811,18 @@
         
-w
+mW
 hatNextF
@@ -2871,17 +2871,18 @@
         
-d
+mD
 oneFragm
@@ -4945,17 +4945,18 @@
  = this.
-w
+mW
 hatNextF
@@ -5039,17 +5039,18 @@
  = this.
-d
+mD
 oneFragm

Refactor to adapt m prefix for class member variable