com.grarak.romswitcher.MoreSettingsActitvity.java Source code

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Here is the source code for com.grarak.romswitcher.MoreSettingsActitvity.java

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/*
 * Copyright 2013 The Android Open Source Project
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.grarak.romswitcher;

import com.grarak.romswitcher.Fragment.AboutUsFragment;
import com.grarak.romswitcher.Fragment.GeneralFragment;
import com.grarak.romswitcher.Fragment.SettingsFragment;

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;

/**
 * This example illustrates a common usage of the DrawerLayout widget in the
 * Android support library.
 * <p/>
 * <p>
 * When a navigation (left) drawer is present, the host activity should detect
 * presses of the action bar's Up affordance as a signal to open and close the
 * navigation drawer. The ActionBarDrawerToggle facilitates this behavior. Items
 * within the drawer should fall into one of two categories:
 * </p>
 * <p/>
 * <ul>
 * <li><strong>View switches</strong>. A view switch follows the same basic
 * policies as list or tab navigation in that a view switch does not create
 * navigation history. This pattern should only be used at the root activity of
 * a task, leaving some form of Up navigation active for activities further down
 * the navigation hierarchy.</li>
 * <li><strong>Selective Up</strong>. The drawer allows the user to choose an
 * alternate parent for Up navigation. This allows a user to jump across an
 * app's navigation hierarchy at will. The application should treat this as it
 * treats Up navigation from a different task, replacing the current task stack
 * using TaskStackBuilder or similar. This is the only form of navigation drawer
 * that should be used outside of the root activity of a task.</li>
 * </ul>
 * <p/>
 * <p>
 * Right side drawers should be used for actions, not navigation. This follows
 * the pattern established by the Action Bar that navigation should be to the
 * left and actions to the right. An action should be an operation performed on
 * the current contents of the window, for example enabling or disabling a data
 * overlay on top of the current content.
 * </p>
 */
public class MoreSettingsActitvity extends Activity {

    private static DrawerLayout mDrawerLayout;
    private static ListView mDrawerList;
    private static ActionBarDrawerToggle mDrawerToggle;

    private static CharSequence mDrawerTitle;
    private static CharSequence mTitle;
    private static String[] mMenu;

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

        mTitle = mDrawerTitle = getTitle();
        mMenu = getResources().getStringArray(R.array.menu_arrays);
        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, mMenu));
        mDrawerList.setOnItemClickListener(new DrawerItemClickListener());

        // 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, /* "open drawer" description for accessibility */
                R.string.drawer_close /* "close drawer" description for accessibility */
        ) {
            public void onDrawerClosed(View view) {
                getActionBar().setTitle(mTitle);
                invalidateOptionsMenu(); // creates call to
                // onPrepareOptionsMenu()
            }

            public void onDrawerOpened(View drawerView) {
                getActionBar().setTitle(mDrawerTitle);
                invalidateOptionsMenu(); // creates call to
                // onPrepareOptionsMenu()
            }
        };
        mDrawerLayout.setDrawerListener(mDrawerToggle);

        if (savedInstanceState == null) {
            selectItem(0);
        }
    }

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

    /* Called whenever we call invalidateOptionsMenu() */
    @Override
    public boolean onPrepareOptionsMenu(Menu menu) {
        // If the nav drawer is open, hide action items related to the content
        // view
        return super.onPrepareOptionsMenu(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;
        } else {
            return false;
        }
    }

    /* The click listner for ListView in the navigation drawer */
    private class DrawerItemClickListener implements ListView.OnItemClickListener {
        @Override
        public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
            selectItem(position);
        }
    }

    private void selectItem(int position) {
        Fragment fragment = null;
        // update the main content by replacing fragments
        switch (position) {
        case 0:
            fragment = new GeneralFragment();
            break;
        case 1:
            fragment = new SettingsFragment();
            break;
        case 2:
            fragment = new AboutUsFragment();
        default:
            break;
        }
        Bundle args = new Bundle();
        fragment.setArguments(args);

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

        // update selected item and title, then close the drawer
        mDrawerList.setItemChecked(position, true);
        setTitle(mMenu[position]);
        mDrawerLayout.closeDrawer(mDrawerList);
    }

    @Override
    public void setTitle(CharSequence title) {
        mTitle = title;
        getActionBar().setTitle(mTitle);
    }

    /**
     * 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 toggls
        mDrawerToggle.onConfigurationChanged(newConfig);
    }

    public void onDestroy() {
        Intent i = new Intent(this, CheckforFilesActivity.class);
        startActivity(i);
        super.onDestroy();
    }
}