Java tutorial
/* * Copyright (c) 2014 Jono Vanhie-Van Gerwen * * 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.github.jvanhie.discogsscrobbler; import android.content.Intent; import android.content.res.Configuration; import android.content.res.TypedArray; import android.net.Uri; import android.os.Bundle; import android.support.v4.app.ActionBarDrawerToggle; import android.support.v4.view.GravityCompat; import android.support.v4.widget.DrawerLayout; import android.support.v7.app.ActionBarActivity; import android.view.Menu; import android.view.MenuItem; import android.view.View; import android.widget.AdapterView; import android.widget.ListView; import com.github.jvanhie.discogsscrobbler.adapters.NavDrawerListAdapter; /** * Created by Jono on 01/04/2014. */ public abstract class DrawerActivity extends ActionBarActivity { private CharSequence mDrawerTitle; private CharSequence mTitle; private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; public void setDrawer(int layout, int list, String title, String drawerTitle, boolean showDrawerIcon) { mTitle = title; mDrawerTitle = drawerTitle; mDrawerLayout = (DrawerLayout) findViewById(layout); //populate the navigation drawer mDrawerList = (ListView) findViewById(list); // set a custom shadow that overlays the main content when the drawer opens mDrawerLayout.setDrawerShadow(R.drawable.drawer_shadow, GravityCompat.START); // load slide menu items String[] navMenuTitles = getResources().getStringArray(R.array.nav_drawer_items); // nav drawer icons from resources TypedArray navMenuIcons = getResources().obtainTypedArray(R.array.nav_drawer_icons); NavDrawerListAdapter adapter = new NavDrawerListAdapter(this); for (int i = 0; i < navMenuTitles.length; i++) { adapter.addItem(navMenuTitles[i], navMenuIcons.getResourceId(i, -1)); } // Set the adapter for the list view mDrawerList.setAdapter(adapter); mDrawerList.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) { switch (i) { case 0: //collection startActivity(new Intent(DrawerActivity.this, ReleaseListActivity.class)); break; case 1: //search startActivity(new Intent(DrawerActivity.this, SearchActivity.class)); break; case 2: //now playing startActivity(new Intent(DrawerActivity.this, NowPlayingActivity.class)); break; case 3: //settings startActivity(new Intent(DrawerActivity.this, SettingsActivity.class)); break; case 4: //help startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse("https://github.com/jvanhie/discogsscrobbler/wiki"))); break; } } }); mDrawerToggle = new ActionBarDrawerToggle(this, mDrawerLayout, R.drawable.ic_drawer, //nav menu toggle icon R.string.app_name, // nav drawer open - description for accessibility R.string.app_name // nav drawer close - description for accessibility ) { public void onDrawerClosed(View view) { getSupportActionBar().setTitle(mTitle); // calling onPrepareOptionsMenu() to show action bar icons invalidateOptionsMenu(); } public void onDrawerOpened(View drawerView) { getSupportActionBar().setTitle(mDrawerTitle); // calling onPrepareOptionsMenu() to hide action bar icons invalidateOptionsMenu(); } }; mDrawerToggle.setDrawerIndicatorEnabled(showDrawerIcon); mDrawerLayout.setDrawerListener(mDrawerToggle); getSupportActionBar().setDisplayHomeAsUpEnabled(true); getSupportActionBar().setHomeButtonEnabled(true); } @Override public boolean onOptionsItemSelected(MenuItem item) { // toggle nav drawer on selecting action bar app icon/title if (mDrawerToggle.onOptionsItemSelected(item)) { return true; } return super.onOptionsItemSelected(item); } /*** * Called when invalidateOptionsMenu() is triggered */ @Override public boolean onPrepareOptionsMenu(Menu menu) { // if nav drawer is opened, hide the action items boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); for (int i = 0; i < menu.size(); i++) { menu.getItem(i).setVisible(!drawerOpen); } return super.onPrepareOptionsMenu(menu); } @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 toggle mDrawerToggle.onConfigurationChanged(newConfig); } }