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.adapter.TimerRecyclerViewAdapter; import eu.power_switch.gui.dialog.ConfigureTimerDialog; 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.timer.Timer; import uk.co.deanwild.materialshowcaseview.MaterialShowcaseView; /** * Fragment containing a List of all Timers * <p/> * Created by Markus on 12.09.2015. */ public class TimersFragment extends RecyclerViewFragment { private ArrayList<Timer> timers = new ArrayList<>(); private TimerRecyclerViewAdapter timerRecyclerViewAdapter; private RecyclerView recyclerViewTimers; private BroadcastReceiver broadcastReceiver; private FloatingActionButton addTimerFAB; /** * Used to notify Timer Fragment (this) that Timers have changed * * @param context any suitable context */ public static void sendTimersChangedBroadcast(Context context) { Log.d("TimersFragment", "sendTimersChangedBroadcast"); Intent intent = new Intent(LocalBroadcastConstants.INTENT_TIMER_CHANGED); LocalBroadcastManager.getInstance(context).sendBroadcast(intent); } @Override public void onCreateViewEvent(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { rootView = inflater.inflate(R.layout.fragment_timers, container, false); setHasOptionsMenu(true); final RecyclerViewFragment recyclerViewFragment = this; timerRecyclerViewAdapter = new TimerRecyclerViewAdapter(getActivity(), timers); recyclerViewTimers = (RecyclerView) rootView.findViewById(R.id.recyclerView); recyclerViewTimers.setAdapter(timerRecyclerViewAdapter); StaggeredGridLayoutManager layoutManager = new StaggeredGridLayoutManager(getSpanCount(), StaggeredGridLayoutManager.VERTICAL); recyclerViewTimers.setLayoutManager(layoutManager); timerRecyclerViewAdapter.setOnItemLongClickListener(new TimerRecyclerViewAdapter.OnItemLongClickListener() { @Override public void onItemLongClick(View itemView, int position) { final Timer timer = timers.get(position); ConfigureTimerDialog configureTimerDialog = ConfigureTimerDialog.newInstance(timer.getId()); configureTimerDialog.setTargetFragment(recyclerViewFragment, 0); configureTimerDialog.show(getFragmentManager(), null); } }); addTimerFAB = (FloatingActionButton) rootView.findViewById(R.id.add_fab); addTimerFAB.setImageDrawable(IconicsHelper.getAddIcon(getActivity(), ContextCompat.getColor(getActivity(), android.R.color.white))); addTimerFAB.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { ConfigureTimerDialog configureTimerDialog = new ConfigureTimerDialog(); configureTimerDialog.setTargetFragment(recyclerViewFragment, 0); configureTimerDialog.show(getFragmentManager(), null); } }); if (SmartphonePreferencesHandler.getUseOptionsMenuInsteadOfFAB()) { addTimerFAB.setVisibility(View.GONE); } // 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("TimersFragment", "received intent: " + intent.getAction()); updateUI(); } }; } @Override protected void onInitialized() { updateUI(); } private void showTutorial() { new MaterialShowcaseView.Builder(getActivity()).setTarget(addTimerFAB).setUseAutoRadius(true) .setDismissOnTouch(true).setDismissText(getString(R.string.tutorial__got_it)) .setContentText(getString(R.string.tutorial__timer_explanation)) .singleUse(TutorialConstants.TIMERS_KEY).setDelay(500).show(); } private void updateUI() { Log.d("TimersFragment", "updateUI"); updateListContent(); } @Override public boolean onOptionsItemSelected(MenuItem menuItem) { if (super.onOptionsItemSelected(menuItem)) { return true; } switch (menuItem.getItemId()) { case R.id.create_timer: ConfigureTimerDialog configureTimerDialog = new ConfigureTimerDialog(); configureTimerDialog.setTargetFragment(this, 0); configureTimerDialog.show(getFragmentManager(), null); default: break; } return super.onOptionsItemSelected(menuItem); } @Override public void onCreateOptionsMenu(Menu menu, MenuInflater inflater) { inflater.inflate(R.menu.timer_fragment_menu, menu); final int color = ThemeHelper.getThemeAttrColor(getActivity(), android.R.attr.textColorPrimary); menu.findItem(R.id.create_timer).setIcon(IconicsHelper.getAddIcon(getActivity(), color)); if (!SmartphonePreferencesHandler.getUseOptionsMenuInsteadOfFAB()) { menu.findItem(R.id.create_timer).setVisible(false).setEnabled(false); } } @Override public void onStart() { super.onStart(); IntentFilter intentFilter = new IntentFilter(); intentFilter.addAction(LocalBroadcastConstants.INTENT_TIMER_CHANGED); LocalBroadcastManager.getInstance(getActivity()).registerReceiver(broadcastReceiver, intentFilter); } @Override public void onResume() { super.onResume(); showTutorial(); } @Override public void onStop() { LocalBroadcastManager.getInstance(getActivity()).unregisterReceiver(broadcastReceiver); super.onStop(); } @Override public RecyclerView getRecyclerView() { return recyclerViewTimers; } @Override public RecyclerView.Adapter getRecyclerViewAdapter() { return timerRecyclerViewAdapter; } @Override protected int getSpanCount() { return getResources().getInteger(R.integer.timer_grid_span_count); } @Override public List refreshListData() throws Exception { timers.clear(); if (DeveloperPreferencesHandler.getPlayStoreMode()) { PlayStoreModeDataModel playStoreModeDataModel = new PlayStoreModeDataModel(getActivity()); timers.addAll(playStoreModeDataModel.getTimers()); } else { timers.addAll(DatabaseHandler.getAllTimers()); } return timers; } }