Java tutorial
/* * Copyright (c) 2016 {UPRC}. * * OperandoApp 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. * * OperandoApp 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 OperandoApp. If not, see <http://www.gnu.org/licenses/>. * * Contributors: * Nikos Lykousas {UPRC}, Constantinos Patsakis {UPRC}, Periklis Maravelias * Initially developed in the context of OPERANDO EU project www.operando.eu */ package eu.operando.operandoapp.wifi; import android.os.Bundle; import android.support.v4.app.NavUtils; import android.support.v4.widget.SwipeRefreshLayout; import android.support.v7.app.ActionBar; import android.support.v7.app.AppCompatActivity; import android.support.v7.widget.Toolbar; import android.view.MenuItem; import android.view.View; import android.widget.ExpandableListView; import com.squareup.otto.Subscribe; import eu.operando.operandoapp.MainContext; import eu.operando.operandoapp.OperandoStatusEvent; import eu.operando.operandoapp.R; /** * Created by nikos on 5/4/16. */ public class AccessPointsActivity extends AppCompatActivity { private SwipeRefreshLayout swipeRefreshLayout; private MainContext mainContext = MainContext.INSTANCE; private AccessPointsAdapter accessPointsAdapter = null; @Override protected void onCreate(Bundle savedInstanceState) { setTheme(MainContext.INSTANCE.getSettings().getThemeStyle().themeAppCompatStyle()); super.onCreate(savedInstanceState); setContentView(R.layout.access_points_content); swipeRefreshLayout = (SwipeRefreshLayout) findViewById(R.id.accessPointsRefresh); swipeRefreshLayout.setOnRefreshListener(new ListViewOnRefreshListener()); ExpandableListView expandableListView = (ExpandableListView) findViewById(R.id.accessPointsView); accessPointsAdapter = new AccessPointsAdapter(this); expandableListView.setAdapter(accessPointsAdapter); Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); toolbar.setOnClickListener(new WiFiBandToggle()); setSupportActionBar(toolbar); ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { setTitle(R.string.action_access_points); updateSubTitle(); Bundle extras = getIntent().getExtras(); Boolean fromNotification = (getIntent().getExtras() != null) ? extras.getBoolean("fromNotification", false) : false; actionBar.setHomeButtonEnabled(!fromNotification); actionBar.setDisplayHomeAsUpEnabled(!fromNotification); } } private void updateSubTitle() { ActionBar actionBar = getSupportActionBar(); if (actionBar != null) { actionBar.setSubtitle(mainContext.getSettings().getWiFiBand().getBand()); } } @Override public boolean onOptionsItemSelected(MenuItem item) { if (item.getItemId() == android.R.id.home) { NavUtils.navigateUpFromSameTask(this); return true; } return super.onOptionsItemSelected(item); } private class WiFiBandToggle implements View.OnClickListener { @Override public void onClick(View view) { mainContext.getSettings().toggleWiFiBand(); updateSubTitle(); } } private void refresh() { swipeRefreshLayout.setRefreshing(true); MainContext.INSTANCE.getScanner().update(); swipeRefreshLayout.setRefreshing(false); accessPointsAdapter.notifyDataSetChanged(); } @Override protected void onPause() { super.onPause(); mainContext.getScanner().pause(); mainContext.getBUS().unregister(this); } @Override public void onResume() { super.onResume(); mainContext.getScanner().resume(); mainContext.getBUS().register(this); refresh(); } private class ListViewOnRefreshListener implements SwipeRefreshLayout.OnRefreshListener { @Override public void onRefresh() { refresh(); } } @Subscribe public void onOperandoStatusEvent(OperandoStatusEvent event) { if (event.eventType == OperandoStatusEvent.EventType.ConnectionState) { refresh(); } } // @Override // public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key) { // if (shouldReload()) { // reloadActivity(); // } else { // mainContext.getScanner().update(); // } // } // // protected boolean shouldReload() { // Settings settings = mainContext.getSettings(); // ThemeStyle settingThemeStyle = settings.getThemeStyle(); // boolean result = !mainContext.getCurrentThemeStyle().equals(settingThemeStyle); // return result; // } // // private void reloadActivity() { // finish(); // Intent intent = new Intent(this, AccessPointsActivity.class); // intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP | Intent.FLAG_ACTIVITY_SINGLE_TOP | // Intent.FLAG_ACTIVITY_CLEAR_TASK | Intent.FLAG_ACTIVITY_NEW_TASK); // startActivity(intent); // } }