Java tutorial
/* * PowerSwitch by Max Rosin & Markus Ressel * Copyright (C) 2015 Markus Ressel * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package eu.power_switch.gui.fragment; import android.content.BroadcastReceiver; import android.content.Context; import android.content.Intent; import android.content.IntentFilter; import android.os.Bundle; import android.support.design.widget.FloatingActionButton; import android.support.v4.content.ContextCompat; import android.support.v4.content.LocalBroadcastManager; import android.support.v7.widget.RecyclerView; import android.support.v7.widget.StaggeredGridLayoutManager; 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 java.util.ArrayList; import java.util.List; import eu.power_switch.R; import eu.power_switch.database.handler.DatabaseHandler; import eu.power_switch.developer.PlayStoreModeDataModel; import eu.power_switch.gui.IconicsHelper; import eu.power_switch.gui.StatusMessageHandler; import eu.power_switch.gui.adapter.ApartmentRecyclerViewAdapter; import eu.power_switch.gui.dialog.ConfigureApartmentDialog; import eu.power_switch.obj.Apartment; import eu.power_switch.settings.DeveloperPreferencesHandler; import eu.power_switch.settings.SmartphonePreferencesHandler; import eu.power_switch.shared.ThemeHelper; import eu.power_switch.shared.constants.LocalBroadcastConstants; import eu.power_switch.shared.constants.TutorialConstants; import eu.power_switch.shared.log.Log; import eu.power_switch.wear.service.UtilityService; import uk.co.deanwild.materialshowcaseview.MaterialShowcaseView; /** * Created by Markus on 25.12.2015. */ public class ApartmentFragment extends RecyclerViewFragment { private RecyclerView recyclerViewApartments; private ApartmentRecyclerViewAdapter apartmentArrayAdapter; private ArrayList<Apartment> apartments = new ArrayList<>(); private FloatingActionButton fab; private BroadcastReceiver broadcastReceiver; /** * Used to notify other Fragments that the selected Apartment has changed * * @param context any suitable context */ public static void sendApartmentChangedBroadcast(Context context) { Log.d("ApartmentFragment", "sendApartmentChangedBroadcast"); Intent intent = new Intent(LocalBroadcastConstants.INTENT_APARTMENT_CHANGED); LocalBroadcastManager.getInstance(context).sendBroadcast(intent); UtilityService.forceWearDataUpdate(context); } @Override public void onCreateViewEvent(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { rootView = inflater.inflate(R.layout.fragment_apartment, container, false); setHasOptionsMenu(true); final RecyclerViewFragment recyclerViewFragment = this; recyclerViewApartments = (RecyclerView) rootView.findViewById(R.id.recyclerView); apartmentArrayAdapter = new ApartmentRecyclerViewAdapter(getActivity(), apartments); recyclerViewApartments.setAdapter(apartmentArrayAdapter); StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(getSpanCount(), StaggeredGridLayoutManager.VERTICAL); recyclerViewApartments.setLayoutManager(layoutManager); apartmentArrayAdapter.setOnItemClickListener(new ApartmentRecyclerViewAdapter.OnItemClickListener() { @Override public void onItemClick(View itemView, int position) { final Apartment apartment = apartments.get(position); SmartphonePreferencesHandler.setCurrentApartmentId(apartment.getId()); for (Apartment currentApartment : apartments) { if (currentApartment.getId().equals(apartment.getId())) { currentApartment.setActive(true); } else { currentApartment.setActive(false); } } apartmentArrayAdapter.notifyDataSetChanged(); } }); apartmentArrayAdapter .setOnItemLongClickListener(new ApartmentRecyclerViewAdapter.OnItemLongClickListener() { @Override public void onItemLongClick(View itemView, final int position) { Apartment apartment = apartments.get(position); ConfigureApartmentDialog configureApartmentDialog = ConfigureApartmentDialog .newInstance(apartment.getId()); configureApartmentDialog.setTargetFragment(recyclerViewFragment, 0); configureApartmentDialog.show(getFragmentManager(), null); } }); fab = (FloatingActionButton) rootView.findViewById(R.id.add_fab); fab.setImageDrawable(IconicsHelper.getAddIcon(getActivity(), ContextCompat.getColor(getContext(), android.R.color.white))); fab.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { try { ConfigureApartmentDialog configureApartmentDialog = new ConfigureApartmentDialog(); configureApartmentDialog.setTargetFragment(recyclerViewFragment, 0); configureApartmentDialog.show(getFragmentManager(), null); } catch (Exception e) { StatusMessageHandler.showErrorMessage(recyclerViewFragment.getRecyclerView(), e); } } }); // BroadcastReceiver to get notifications from background service if room data has changed broadcastReceiver = new BroadcastReceiver() { @Override public void onReceive(Context context, Intent intent) { Log.d(this, "received intent: " + intent.getAction()); updateUI(); } }; } @Override protected void onInitialized() { updateUI(); } private void showTutorial() { new MaterialShowcaseView.Builder(getActivity()).setTarget(fab).setUseAutoRadius(false).setRadius(64 * 3) .setDismissOnTouch(true).setDismissText(getString(R.string.tutorial__got_it)) .setContentText(getString(R.string.tutorial__apartment_explanation)) .singleUse(TutorialConstants.APARTMENT_KEY).setDelay(500).show(); } private void updateUI() { updateListContent(); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.apartment_fragment_menu, menu); final int color = ThemeHelper.getThemeAttrColor(getActivity(), android.R.attr.textColorPrimary); menu.findItem(R.id.create_apartment).setIcon(IconicsHelper.getAddIcon(getActivity(), color)); if (!SmartphonePreferencesHandler.getUseOptionsMenuInsteadOfFAB()) { menu.findItem(R.id.create_apartment).setVisible(false).setEnabled(false); } } @Override public boolean onOptionsItemSelected(MenuItem menuItem) { if (super.onOptionsItemSelected(menuItem)) { return true; } switch (menuItem.getItemId()) { case R.id.create_apartment: try { ConfigureApartmentDialog configureApartmentDialog = new ConfigureApartmentDialog(); configureApartmentDialog.setTargetFragment(this, 0); configureApartmentDialog.show(getFragmentManager(), null); } catch (Exception e) { StatusMessageHandler.showErrorMessage(getActivity(), e); } default: break; } return super.onOptionsItemSelected(menuItem); } @Override public RecyclerView getRecyclerView() { return recyclerViewApartments; } @Override public RecyclerView.Adapter getRecyclerViewAdapter() { return apartmentArrayAdapter; } @Override protected int getSpanCount() { return getResources().getInteger(R.integer.apartments_grid_span_count); } @Override public List refreshListData() throws Exception { apartments.clear(); if (DeveloperPreferencesHandler.getPlayStoreMode()) { PlayStoreModeDataModel playStoreModeDataModel = new PlayStoreModeDataModel(getActivity()); apartments.addAll(PlayStoreModeDataModel.getApartments()); } else { apartments.addAll(DatabaseHandler.getAllApartments()); } return apartments; } @Override public void onResume() { super.onResume(); if (SmartphonePreferencesHandler.getUseOptionsMenuInsteadOfFAB()) { fab.setVisibility(View.GONE); } else { fab.setVisibility(View.VISIBLE); } showTutorial(); } @Override public void onStart() { super.onStart(); IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(LocalBroadcastConstants.INTENT_APARTMENT_CHANGED); LocalBroadcastManager.getInstance(getActivity()).registerReceiver(broadcastReceiver, intentFilter); } @Override public void onStop() { LocalBroadcastManager.getInstance(getActivity()).unregisterReceiver(broadcastReceiver); super.onStop(); } }