3 * This program is free software: you can redistribute it and/or modify
4 * it under the terms of the GNU General Public License as published by
5 * the Free Software Foundation, either version 3 of the License, or
6 * (at your option) any later version.
8 * This program is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * GNU General Public License for more details.
13 * You should have received a copy of the GNU General Public License
14 * along with this program. If not, see <http://www.gnu.org/licenses/>.
16 package de.dhbwloe.campusapp;
18 import android.content.Context;
19 import android.content.Intent;
20 import android.content.res.TypedArray;
21 import android.nfc.NfcAdapter;
22 import android.os.Bundle;
23 import android.support.design.widget.FloatingActionButton;
24 import android.support.design.widget.Snackbar;
25 import android.support.v4.app.FragmentActivity;
26 import android.util.Log;
27 import android.view.KeyEvent;
28 import android.view.View;
29 import android.support.design.widget.NavigationView;
30 import android.support.v4.view.GravityCompat;
31 import android.support.v4.widget.DrawerLayout;
32 import android.support.v7.app.ActionBarDrawerToggle;
33 import android.support.v7.app.AppCompatActivity;
34 import android.support.v7.widget.Toolbar;
35 import android.view.Menu;
36 import android.view.MenuItem;
37 import android.view.inputmethod.EditorInfo;
38 import android.view.inputmethod.InputMethodManager;
39 import android.widget.EditText;
40 import android.widget.ImageView;
41 import android.widget.LinearLayout;
42 import android.widget.TextView;
44 import java.util.Date;
46 import de.dhbwloe.campusapp.nfcreader.NfcCardListener;
48 public class CampusApp extends FragmentActivity {
49 private boolean bSearchActive = false;
50 private CampusAppContext AppContext = null;
55 * Die App besteht aus einer einzigen Activity, auf welcher dynamisch Fragmente platziert werden.
56 * Das Menü, sowie die Headerleiste befinden sich auf der Activity, sind dementsprechend immer verfügbar.
58 * Zur laufzeit der App wird eine einzige Instanz der Klasse CampusAppContext angelegt.
59 * Dieser Kontext dient als einstiegspunkt für sämmtliche global verfügbaren verwaltungs tools.
61 * AppContext.getNavigationManager() NavigationManager Verwaltet die angezeigten Fragmente und deren Navigation
62 * .navigatePage("Dashboard") to navigate to the Dashboard
63 * ... to be continued ...
67 protected void onCreate(Bundle savedInstanceState) {
68 Log.i("CampusApp", "Event: onCreate");
69 super.onCreate(savedInstanceState);
70 setContentView(R.layout.activity_campus_app);
72 // Erstelle neuen AppContext, wenn keiner existiert
73 AppContext = CampusAppContext.getInstance();
74 if(AppContext == null)
75 AppContext = new CampusAppContext(this, R.id.fragment_container, R.id.nav_view);
77 AppContext.setMainActivity(this);
79 // Wenn die App aus dem Ruhezustand (oder auch Orientation change) reaktiviert wird soll nicht zuerst der Splashscreen angezeigt werden.
80 boolean instantRestore = false;
81 if(savedInstanceState != null) {
82 long lastrun = savedInstanceState.getLong("lastrun");
83 lastrun = ((new Date()).getTime()/1000) - lastrun;
84 Log.i("CampusApp", "Restored from Idle state! Idled: "+lastrun+" secs");
86 instantRestore = true;
88 // restore previous Title
89 AppContext.setTitle(savedInstanceState.getString("activetitle"));
93 Bundle contextVars = savedInstanceState.getBundle("savedContextVariables");
94 if(contextVars != null) {
95 Bundle contextVariables = AppContext.getContextVariables();
96 contextVariables.putAll(contextVars);
101 if(instantRestore) // orientation change
104 // don't add navigation to SlashScreen, or even from SplashScreen to Dashboard to the history log!
105 // it would be very strange to return to the SplashScreen or an "empty" page on return ;)
106 AppContext.getNavigationManager().navigatePage("SplashScreen", null, false);
111 public void onSaveInstanceState(Bundle savedInstanceState) {
112 Log.i("CampusApp", "Event: onSaveInstanceState");
114 // Save instance state during "restarts" due to orientation changes.
115 // We don't want to see the splash screen everytime the orientation changes ;)
116 savedInstanceState.putLong("lastrun", (new Date()).getTime() / 1000);
117 savedInstanceState.putString("activepage", AppContext.getNavigationManager().getCurrentPageName());
118 TextView titleView = (TextView) findViewById(R.id.title);
119 savedInstanceState.putString("activetitle", titleView.getText().toString());
121 Bundle contextVariables = AppContext.getContextVariables();
122 savedInstanceState.putBundle("savedContextVariables", contextVariables);
124 // Always call the superclass so it can save the view hierarchy state
125 super.onSaveInstanceState(savedInstanceState);
128 public void prepareMainUi() {
129 ImageView btnOpenSearch = (ImageView) findViewById(R.id.search_button);
130 btnOpenSearch.setVisibility(View.GONE);
133 public void loadMainUi() {
134 ImageView btnOpenSearch = (ImageView) findViewById(R.id.search_button);
136 btnOpenSearch.setVisibility(View.VISIBLE);
138 setupSearchTriggers();
140 AppContext.getNfcCardListener().startNfcListener();
143 private void setupActionBar() {
144 Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar);
145 DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
146 ActionBarDrawerToggle toggle = new ActionBarDrawerToggle(this, drawer, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close);
147 drawer.setDrawerListener(toggle);
150 NavigationView navigationView = (NavigationView) findViewById(R.id.nav_view);
151 navigationView.setNavigationItemSelectedListener(new NavigationView.OnNavigationItemSelectedListener() {
152 @SuppressWarnings("StatementWithEmptyBody")
154 public boolean onNavigationItemSelected(MenuItem item) {
155 // Handle navigation view item clicks here.
156 int id = item.getItemId();
158 for(CampusAppContext.NavigationItem navitem : AppContext.NAVIGATION_TARGETS) {
159 if(navitem.navItemId == id) {
160 AppContext.getNavigationManager().navigatePage(navitem.navTarget);
165 DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
166 drawer.closeDrawer(GravityCompat.START);
172 private void setupSearchTriggers() {
173 ImageView btnOpenSearch = (ImageView) findViewById(R.id.search_button);
174 ImageView btnCloseSearch = (ImageView) findViewById(R.id.search_clear);
175 EditText edtSearchInput = (EditText) findViewById(R.id.search_input);
176 TextView txtTitle = (TextView) findViewById(R.id.title);
178 // EventListener für Suchfunktion
179 btnOpenSearch.setOnClickListener(new View.OnClickListener() {
181 public void onClick(View view) {
182 triggerSearchPanel(true);
185 edtSearchInput.setOnFocusChangeListener(new View.OnFocusChangeListener() {
187 public void onFocusChange(View v, boolean hasFocus) {
188 EditText edtSearchInput = (EditText) v;
189 if (!hasFocus && edtSearchInput.getText().length() == 0) {
190 triggerSearchPanel(false);
194 edtSearchInput.setOnEditorActionListener(new TextView.OnEditorActionListener() {
196 public boolean onEditorAction(TextView v, int actionId, KeyEvent event) {
197 if (actionId == EditorInfo.IME_ACTION_SEARCH) {
198 EditText edtSearchInput = (EditText) v;
199 triggerSearchAction(edtSearchInput.getText().toString());
200 triggerSearchPanel(false);
206 btnCloseSearch.setOnClickListener(new View.OnClickListener() {
208 public void onClick(View view) {
209 EditText edtSearchInput = (EditText) findViewById(R.id.search_input);
210 edtSearchInput.setText("");
211 triggerSearchPanel(false);
214 txtTitle.setOnClickListener(new View.OnClickListener() {
216 public void onClick(View view) {
217 triggerSearchPanel(true);
223 private void triggerSearchPanel(boolean show) {
224 if(bSearchActive == show)
226 bSearchActive = show;
227 LinearLayout layTitleContainer = (LinearLayout) findViewById(R.id.title_container);
228 LinearLayout laySearchContainer = (LinearLayout) findViewById(R.id.search_container);
229 EditText edtSearchInput = (EditText) findViewById(R.id.search_input);
231 InputMethodManager imm = (InputMethodManager) getSystemService(Context.INPUT_METHOD_SERVICE);
233 layTitleContainer.setVisibility(View.GONE);
234 laySearchContainer.setVisibility(View.VISIBLE);
235 edtSearchInput.requestFocus();
237 imm.showSoftInput(edtSearchInput, InputMethodManager.SHOW_IMPLICIT);
239 layTitleContainer.setVisibility(View.VISIBLE);
240 laySearchContainer.setVisibility(View.GONE);
242 View view = this.getCurrentFocus();
244 imm.hideSoftInputFromWindow(view.getWindowToken(), 0);
249 private void triggerSearchAction(String query) {
250 Bundle bundle = new Bundle();
251 bundle.putString("query", query);
253 AppContext.getNavigationManager().navigatePage("AppSearch", bundle);
257 public void onBackPressed() {
258 DrawerLayout drawer = (DrawerLayout) findViewById(R.id.drawer_layout);
259 if (drawer.isDrawerOpen(GravityCompat.START)) {
260 drawer.closeDrawer(GravityCompat.START);
261 } else if(!AppContext.getNavigationManager().back()) {
262 super.onBackPressed(); // trigger system action if internal navigation manager returns false for back()
267 public boolean onCreateOptionsMenu(Menu menu) {
268 // Inflate the menu; this adds items to the action bar if it is present.
269 getMenuInflater().inflate(R.menu.campus_app, menu);
274 public boolean onOptionsItemSelected(MenuItem item) {
275 // Handle action bar item clicks here. The action bar will
276 // automatically handle clicks on the Home/Up button, so long
277 // as you specify a parent activity in AndroidManifest.xml.
278 int id = item.getItemId();
280 //noinspection SimplifiableIfStatement
281 if (id == R.id.action_settings) {
285 return super.onOptionsItemSelected(item);
288 /* nfc listener related callbacks */
290 public void onResume() {
291 if(AppContext == null)
292 AppContext = CampusAppContext.getInstance();
293 if(AppContext == null)
294 AppContext = new CampusAppContext(this, R.id.fragment_container, R.id.nav_view);
296 AppContext.setMainActivity(this);
299 Log.i("CampusApp", "onResume event");
300 AppContext.getNfcCardListener().resumeForefrontDispatcher();
304 public void onPause() {
306 Log.i("CampusApp", "Event: onPause");
307 AppContext.getNfcCardListener().pauseForefrontDispatcher();
311 public void onNewIntent(Intent intent) {
312 if (NfcAdapter.ACTION_TECH_DISCOVERED.equals(intent.getAction())) {
313 AppContext.getNfcCardListener().handleNfcEvent(intent);