Java tutorial
/* * 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.samsunghack.apps.android.noq; import java.util.ArrayList; import java.util.Locale; import android.app.Activity; import android.app.Fragment; import android.app.FragmentManager; import android.app.SearchManager; 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.util.Log; import android.view.LayoutInflater; import android.view.Menu; import android.view.MenuInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.AdapterView; import android.widget.ArrayAdapter; import android.widget.ImageView; import android.widget.ListView; import android.widget.Toast; import android.support.v4.app.FragmentActivity; import com.mobispectra.android.apps.gplus.SignInActivity; import com.samsung.chord.samples.apidemo.ChordApiDemoActivity; public class NavDrawerMainActivity extends FragmentActivity { private static final String TAG = "NavDrawerMainActivity"; private DrawerLayout mDrawerLayout; private ListView mDrawerList; private ActionBarDrawerToggle mDrawerToggle; private CharSequence mDrawerTitle; private CharSequence mTitle; // Navigation Menu items private static final int NAV_MENU_HOME = 0; private static final int NAV_MENU_RESERVATIONS = 1; private static final int NAV_MENU_NEARBY = 2; private static final int NAV_MENU_PAYMENTS = 3; private static final int NAV_MENU_SETTINGS = 4; private static final int NAV_MENU_RESTAURANT_MANAGER = 5; private static final int NAV_MENU_LENGTH = 6; private static String[] mAppFeatureTitles = new String[NAV_MENU_LENGTH]; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_navdrawer_main); mTitle = mDrawerTitle = getTitle(); setupNavigationMenu(); 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, mAppFeatureTitles)); 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) { selectItemNew(0); } // Initialize Shared Preferences AppPrefs.init(getApplicationContext()); } @Override public void onResume() { super.onResume(); // Set the title to App Title selectItemNew(0); setTitle(getResources().getString(R.string.app_name)); } @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 boolean drawerOpen = mDrawerLayout.isDrawerOpen(mDrawerList); menu.findItem(R.id.action_websearch).setVisible(!drawerOpen); 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; } // Handle action buttons switch (item.getItemId()) { case R.id.action_websearch: // create intent to perform web search for this planet Intent intent = new Intent(Intent.ACTION_WEB_SEARCH); intent.putExtra(SearchManager.QUERY, getActionBar().getTitle()); // catch event that there's no activity to handle intent if (intent.resolveActivity(getPackageManager()) != null) { startActivity(intent); } else { Toast.makeText(this, R.string.app_not_available, Toast.LENGTH_LONG).show(); } return true; default: return super.onOptionsItemSelected(item); } } /* 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) { selectItemNew(position); } } private void selectItem(int position) { // update the main content by replacing fragments Fragment fragment = new PlanetFragment(); Log.d(TAG, "+selectItem: positon = " + position); Bundle args = new Bundle(); args.putInt(PlanetFragment.ARG_PLANET_NUMBER, position); 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(mAppFeatureTitles[position]); mDrawerLayout.closeDrawer(mDrawerList); } private void selectItemNew(int position) { Log.d(TAG, "+selectItem: positon = " + position); switch (position) { case NAV_MENU_HOME: NearbyFragment fragment = new NearbyFragment(); // fragment.setArguments(arguments); getSupportFragmentManager().beginTransaction().replace(R.id.content_frame, fragment).commit(); Log.d(TAG, "Home Menu Pressed"); break; case NAV_MENU_RESERVATIONS: Log.d(TAG, "Reservations Menu Pressed"); // Intent reservationsIntent = new Intent(NavDrawerMainActivity.this, // ReservationFormActivity.class); Intent reservationsIntent = new Intent(NavDrawerMainActivity.this, SignInActivity.class); startActivity(reservationsIntent); break; case NAV_MENU_NEARBY: Intent nearbyIntent = new Intent(NavDrawerMainActivity.this, NearbyActivity.class); startActivity(nearbyIntent); Log.d(TAG, "Nearby Menu Pressed"); break; case NAV_MENU_PAYMENTS: Intent paymentsIntent = new Intent(NavDrawerMainActivity.this, PaymentsActivity.class); startActivity(paymentsIntent); Log.d(TAG, "Nearby Menu Pressed"); break; case NAV_MENU_SETTINGS: Intent chordSettingsIntent = new Intent(NavDrawerMainActivity.this, ChordApiDemoActivity.class); startActivity(chordSettingsIntent); Log.d(TAG, "Settings Menu Pressed"); break; case NAV_MENU_RESTAURANT_MANAGER: Intent restaurantMgrIntent = new Intent(NavDrawerMainActivity.this, RestaurantMgrActivity.class); startActivity(restaurantMgrIntent); Log.d(TAG, "NAV_MENU_RESTAURANT_MANAGER Menu Pressed"); break; } // update selected item and title, then close the drawer mDrawerList.setItemChecked(position, true); if (position != NAV_MENU_HOME) { setTitle(mAppFeatureTitles[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); } /** * Fragment that appears in the "content_frame", shows a planet */ public static class PlanetFragment extends Fragment { public static final String ARG_PLANET_NUMBER = "planet_number"; public PlanetFragment() { // Empty constructor required for fragment subclasses } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View rootView = inflater.inflate(R.layout.fragment_planet, container, false); int i = getArguments().getInt(ARG_PLANET_NUMBER); String planet = mAppFeatureTitles[i]; int imageId = getResources().getIdentifier(planet.toLowerCase(Locale.getDefault()), "drawable", getActivity().getPackageName()); ((ImageView) rootView.findViewById(R.id.image)).setImageResource(imageId); getActivity().setTitle(planet); return rootView; } } // Sliding Menu items class NavMenuItem { int mItemId; int mStringResourceId; int mIconResourceId; public NavMenuItem(int itemId, int stringResourceId, int iconResourceId) { this.mItemId = itemId; this.mStringResourceId = stringResourceId; this.mIconResourceId = iconResourceId; if (itemId < NAV_MENU_LENGTH) { mAppFeatureTitles[itemId] = getResources().getString(stringResourceId); } } public int getItemId() { return mItemId; } public int getStringResourceId() { return mStringResourceId; } public int getIconResourceId() { return mIconResourceId; } } private void setupNavigationMenu() { ArrayList<NavMenuItem> navMenuItemsList = new ArrayList<NavMenuItem>(); navMenuItemsList.add(new NavMenuItem(NAV_MENU_HOME, R.string.title_home, R.drawable.ic_launcher)); navMenuItemsList.add(new NavMenuItem(NAV_MENU_RESERVATIONS, R.string.title_reservations, R.drawable.ic_action_reservation)); navMenuItemsList .add(new NavMenuItem(NAV_MENU_NEARBY, R.string.title_nearby_restaurants, R.drawable.ic_launcher)); navMenuItemsList .add(new NavMenuItem(NAV_MENU_PAYMENTS, R.string.title_payments, R.drawable.ic_action_payment)); navMenuItemsList .add(new NavMenuItem(NAV_MENU_SETTINGS, R.string.title_settings, R.drawable.ic_action_settings)); navMenuItemsList.add(new NavMenuItem(NAV_MENU_RESTAURANT_MANAGER, R.string.title_restaurant_manager, R.drawable.ic_launcher)); } }