Java tutorial
/* * Copyright 2015-2017 Red Hat, Inc. and/or its affiliates * and other contributors as indicated by the @author tags. * * 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.hawkular.client.android.fragment; import java.util.ArrayList; import java.util.Collection; import java.util.UUID; import org.hawkular.client.android.R; import org.hawkular.client.android.adapter.TriggersAdapter; import org.hawkular.client.android.backend.model.Trigger; import org.hawkular.client.android.util.ColorSchemer; import org.hawkular.client.android.util.ViewDirector; import org.jboss.aerogear.android.store.DataManager; import org.jboss.aerogear.android.store.generator.IdGenerator; import org.jboss.aerogear.android.store.sql.SQLStore; import org.jboss.aerogear.android.store.sql.SQLStoreConfiguration; import android.content.Context; import android.os.Bundle; import android.support.annotation.Nullable; import android.support.v4.app.Fragment; import android.support.v4.widget.SwipeRefreshLayout; import android.view.LayoutInflater; import android.view.MenuItem; import android.view.View; import android.view.ViewGroup; import android.widget.ListView; import android.widget.PopupMenu; import butterknife.BindView; import butterknife.ButterKnife; import icepick.Icepick; import icepick.State; /** * Favourite Triggers fragment. * <p> * Displays available favourite triggers. */ public class FavTriggersFragment extends Fragment implements SwipeRefreshLayout.OnRefreshListener, TriggersAdapter.TriggerListener { @BindView(R.id.list) ListView list; @BindView(R.id.content) SwipeRefreshLayout contentLayout; @State @Nullable ArrayList<Trigger> triggers; @Nullable @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle state) { return inflater.inflate(R.layout.fragment_list, container, false); } @Override public void onActivityCreated(Bundle state) { super.onActivityCreated(state); setUpState(state); setUpBindings(); setUpRefreshing(); setUpTriggers(); } private void setUpTriggers() { Context context = this.getActivity(); SQLStore<Trigger> store = openStore(context); store.openSync(); Collection<Trigger> array = store.readAll(); triggers = new ArrayList<>(array); list.setAdapter(new TriggersAdapter(getActivity(), this, triggers)); hideRefreshing(); if (triggers.isEmpty()) { showMessage(); } else { showList(); } } private void hideRefreshing() { contentLayout.setRefreshing(false); } private void showList() { ViewDirector.of(this).using(R.id.animator).show(R.id.content); } private void showMessage() { ViewDirector.of(this).using(R.id.animator).show(R.id.message); } private SQLStore<Trigger> openStore(Context context) { DataManager.config("FavouriteTriggers", SQLStoreConfiguration.class).withContext(context) .withIdGenerator(new IdGenerator() { @Override public String generate() { return UUID.randomUUID().toString(); } }).store(Trigger.class); return (SQLStore<Trigger>) DataManager.getStore("FavouriteTriggers"); } private void setUpState(Bundle state) { Icepick.restoreInstanceState(this, state); } private void setUpBindings() { ButterKnife.bind(this, getView()); } private void setUpRefreshing() { contentLayout.setOnRefreshListener(this); contentLayout.setColorSchemeResources(ColorSchemer.getScheme()); } @Override public void onRefresh() { setUpTriggers(); } @Override public void onSaveInstanceState(Bundle state) { super.onSaveInstanceState(state); tearDownState(state); } private void tearDownState(Bundle state) { Icepick.saveInstanceState(this, state); } @Override public void onDestroyView() { super.onDestroyView(); } @Override public void onTriggerMenuClick(View triggerView, int triggerPosition) { showTriggerMenu(triggerView, triggerPosition); } @Override public void onTriggerTextClick(View triggerView, int triggerPosition) { // TODO : Add detail Trigger fragment } private void showTriggerMenu(final View triggerView, final int triggerPosition) { PopupMenu triggerMenu = new PopupMenu(getActivity(), triggerView); triggerMenu.getMenuInflater().inflate(R.menu.popup_delete, triggerMenu.getMenu()); triggerMenu.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() { @Override public boolean onMenuItemClick(MenuItem menuItem) { Trigger trigger = getTriggersAdapter().getItem(triggerPosition); switch (menuItem.getItemId()) { case R.id.menu_delete: Context context = getActivity(); SQLStore<Trigger> store = openStore(context); store.openSync(); store.remove(trigger.getId()); onRefresh(); return true; default: return false; } } }); triggerMenu.show(); } private TriggersAdapter getTriggersAdapter() { return (TriggersAdapter) list.getAdapter(); } }