com.android.fastexample.ui.activity.DrawerActivity.java Source code

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Here is the source code for com.android.fastexample.ui.activity.DrawerActivity.java

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/*
 * Copyright (C) 2014 loQua.Xee <loquaciouser@gmail.com>
 *
 * 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.android.fastexample.ui.activity;

import android.os.Bundle;
import android.support.v4.app.ActionBarDrawerToggle;
import android.support.v4.app.Fragment;
import android.support.v4.app.FragmentActivity;
import android.support.v4.widget.DrawerLayout;
import android.view.Gravity;
import android.view.MenuItem;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import com.android.fastexample.R;
import com.android.fastexample.ui.fragment.FragmentPage1;
import com.android.fastexample.ui.fragment.FragmentPage2;
import com.android.fastexample.ui.fragment.FragmentPage3;
import com.android.fastexample.ui.fragment.FragmentPage4;
import com.android.fastexample.ui.fragment.FragmentPage5;
import com.android.fastlibrary.view.fragmentswitcher.FragmentStateArrayPagerAdapter;
import com.android.fastlibrary.view.fragmentswitcher.FragmentSwitcher;
import java.util.ArrayList;
import java.util.List;

public class DrawerActivity extends FragmentActivity {
    private ListView mListView;
    private FragmentSwitcher mFragmentSwitcher;
    private ArrayAdapter<String> mListAdapter;
    private FragmentStateArrayPagerAdapter mFragmentAdapter;
    private ActionBarDrawerToggle mDrawerToggle;
    private DrawerLayout mDrawerLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_drawer);
        initializeFragmentSwitcher();
        initializeList();
        initializeDrawer();
        fillAdapters();
    }

    /**
     * Initializes the fragment switcher.  It works just like a viewpager.
     */
    private void initializeFragmentSwitcher() {
        mFragmentSwitcher = (FragmentSwitcher) findViewById(R.id.fragment_switcher);
        mFragmentAdapter = new FragmentStateArrayPagerAdapter(getSupportFragmentManager());
        mFragmentSwitcher.setAdapter(mFragmentAdapter);
    }

    /**
     * Sets up the UI for the navigation drawer.
     */
    private void initializeDrawer() {
        mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout);
        mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.ic_drawer, R.string.show,
                R.string.hide);
        mDrawerLayout.setDrawerListener(mDrawerToggle);
        getActionBar().setDisplayHomeAsUpEnabled(true);
        mDrawerToggle.syncState();
    }

    /**
     * Initializes the list that controls which fragment will be shown.
     */
    private void initializeList() {
        mListView = (ListView) findViewById(R.id.drawer_list);
        mListAdapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1);
        mListView.setAdapter(mListAdapter);
        mListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
            @Override
            public void onItemClick(AdapterView<?> adapterView, View view, int position, long id) {
                mFragmentSwitcher.setCurrentItem(position);
                mDrawerLayout.closeDrawer(Gravity.START);
            }
        });
    }

    /**
     * Creates a list of fragments and list items and loads up the adapters.
     */
    private void fillAdapters() {
        List<Fragment> fragments = new ArrayList<Fragment>();
        List<String> listItems = new ArrayList<String>();

        fragments.add(new FragmentPage1());
        fragments.add(new FragmentPage2());
        fragments.add(new FragmentPage3());
        fragments.add(new FragmentPage4());
        fragments.add(new FragmentPage5());

        listItems.add("Fragment #" + 1);
        listItems.add("Fragment #" + 2);
        listItems.add("Fragment #" + 3);
        listItems.add("Fragment #" + 4);
        listItems.add("Fragment #" + 5);

        //for (int i = 0; i < 100; i++) {
        //  String title = "Fragment #" + i;
        //  fragments.add(new FragmentPage1());
        //  listItems.add(title);
        //}
        mFragmentAdapter.addAll(fragments);
        mListAdapter.addAll(listItems);
    }

    /**
     * Wires up the 'home' button to control the navigation drawer.
     */
    @Override
    public boolean onOptionsItemSelected(MenuItem item) {
        if (mDrawerToggle.onOptionsItemSelected(item)) {
            return true;
        }
        return super.onOptionsItemSelected(item);
    }
}