Java tutorial
/* * Copyright (C) 2013 The ChameleonOS 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 org.chameleonos.firewall; import java.util.ArrayList; import java.util.List; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.content.res.Configuration; import android.os.Bundle; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.widget.DrawerLayout; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.BaseAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.TextView; /** * @author Clark Scheff * */ public class FirewallActivity extends Activity { private ListView mDrawerList; private DrawerLayout mDrawerLayout; private CharSequence mTitle = ""; private ActionBarDrawerToggle mDrawerToggle; private List<NavigationDrawerItem> mNavItems; enum Type { Header, Fragment } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.firewall_activity); //mPlanetTitles = getResources().getStringArray(R.array.planets_array); mDrawerLayout = (DrawerLayout) findViewById(R.id.drawer_layout); mDrawerList = (ListView) findViewById(R.id.left_drawer); setupNavItems(); // Set the list's click listener mDrawerList.setOnItemClickListener(new DrawerItemClickListener()); mDrawerList.setChoiceMode(ListView.CHOICE_MODE_SINGLE); mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.ic_drawer_holo_dark, 0, 0) { /** Called when a drawer has settled in a completely closed state. */ public void onDrawerClosed(View view) { getActionBar().setTitle(mTitle); } /** Called when a drawer has settled in a completely open state. */ public void onDrawerOpened(View drawerView) { } }; // Set the drawer toggle as the DrawerListener mDrawerLayout.setDrawerListener(mDrawerToggle); getActionBar().setDisplayHomeAsUpEnabled(true); getActionBar().setHomeButtonEnabled(true); } private void setupNavItems() { mNavItems = new ArrayList<NavigationDrawerItem>(); mNavItems.add(new NavigationDrawerItem(MainFragment.class.getName(), "Firewall", Type.Fragment, R.drawable.ic_firewall)); mNavItems.add( new NavigationDrawerItem(LogFragment.class.getName(), "Log", Type.Fragment, R.drawable.ic_log)); mNavItems.add(new NavigationDrawerItem(ShowRulesFragment.class.getName(), "View Rules", Type.Fragment, R.drawable.ic_show_rules)); mNavItems.add(new NavigationDrawerItem(ProfilesFragment.class.getName(), "Profiles", Type.Fragment, R.drawable.ic_profiles)); mNavItems.add( new NavigationDrawerItem(HelpFragment.class.getName(), "Help", Type.Fragment, R.drawable.ic_help)); mNavItems.add(new NavigationDrawerItem(SettingsFragment.class.getName(), "Settings", Type.Fragment, R.drawable.ic_settings)); // Set the adapter for the list view mDrawerList.setAdapter(new NavigationAdapter()); selectItem(0); } private class DrawerItemClickListener implements ListView.OnItemClickListener { @Override public void onItemClick(AdapterView parent, View view, int position, long id) { selectItem(position); } } /** Swaps fragments in the main content view */ private void selectItem(int position) { // Create a new fragment and specify the planet to show based on position Fragment fragment = null; try { fragment = (Fragment) (Class.forName(mNavItems.get(position).fragment)).newInstance(); } catch (InstantiationException e) { } catch (IllegalAccessException e) { } catch (ClassNotFoundException e) { } if (fragment != null) { // Insert the fragment by replacing any existing fragment FragmentManager fragmentManager = getFragmentManager(); fragmentManager.beginTransaction().replace(R.id.content_frame, fragment).commit(); setTitle(mNavItems.get(position).title); } // Highlight the selected item, update the title, and close the drawer mDrawerList.setItemChecked(position, true); mDrawerLayout.closeDrawer(mDrawerList); } @Override public void setTitle(CharSequence title) { mTitle = title; getActionBar().setTitle(mTitle); } @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); mDrawerToggle.onConfigurationChanged(newConfig); } @Override public boolean onOptionsItemSelected(MenuItem item) { // Pass the event to ActionBarDrawerToggle, if it returns // true, then it has handled the app icon touch event if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } // Handle your other action bar items... return super.onOptionsItemSelected(item); } private class NavigationDrawerItem { Type type; String fragment; String title; int iconId; public NavigationDrawerItem(String fragment, String title, Type type) { this(fragment, title, type, 0); } public NavigationDrawerItem(String fragment, String title, Type type, int iconId) { this.fragment = fragment; this.title = title; this.type = type; this.iconId = iconId; } } private class NavigationAdapter extends BaseAdapter { @Override public int getCount() { return mNavItems.size(); } @Override public Object getItem(int position) { return mNavItems.get(position); } @Override public long getItemId(int position) { return 0; } @Override public View getView(int position, View convertView, ViewGroup parent) { if (convertView == null) convertView = getLayoutInflater().inflate(R.layout.navigation_list_item, null); NavigationDrawerItem item = mNavItems.get(position); ImageView iv = (ImageView) convertView.findViewById(R.id.icon); iv.setImageResource(item.iconId); TextView tv = (TextView) convertView.findViewById(R.id.title); tv.setText(item.title); return convertView; } } }