thoerup/traininfo/WelcomeScreen.java

package dk.thoerup.traininfo;


import java.io.InvalidClassException;

import android.app.Activity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.content.SharedPreferences;
import android.content.SharedPreferences.Editor;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.util.Log;
import android.view.Menu;
import android.view.MenuItem;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.Window;
import android.widget.Button;
import android.widget.Toast;

import com.nullwire.trace.ExceptionHandler;

import dk.thoerup.androidutils.CheckUpdates;
import dk.thoerup.traininfo.provider.OfflineStationProvider;
import dk.thoerup.traininfo.provider.ProviderFactory;
import dk.thoerup.traininfo.provider.StationProvider;


public class WelcomeScreen extends Activity{
        
        final static String stationsreload = "stationsreload";
        final static int MENU_SETTINGS = 1;
        final static int MENU_RELOAD = 2;
        
        
        public enum ListType {
                ListNearest,
                ListSearch,
                ListFavorites
        }
        
        
        Handler handler = new Handler();
        
        SharedPreferences prefs;
        
        StationLoader stationLoader;
        
        @Override
        public void onCreate(Bundle savedInstanceState) {
                
                super.onCreate(savedInstanceState);
                
                prefs = getSharedPreferences("TrainStation", 0);
                
                requestWindowFeature( Window.FEATURE_NO_TITLE );
                setContentView(R.layout.welcome);
                
                Button nearestButton = (Button) findViewById(R.id.nearest);
                nearestButton.setOnClickListener( new StationListListener(ListType.ListNearest));
                
                Button searchButton = (Button) findViewById(R.id.search);
                searchButton.setOnClickListener( new StationListListener(ListType.ListSearch));
                
                Button favoritesButton = (Button) findViewById(R.id.favorites);
                favoritesButton.setOnClickListener( new StationListListener(ListType.ListFavorites));
                
                Button aboutButton = (Button) findViewById(R.id.about);
                aboutButton.setOnClickListener( new AboutListener() );
        
                //Got stacktraces / reports that the register thing sometimes crashes
                try {   
                        ExceptionHandler.register(this, "http://t-hoerup.dk/android/trace.php");
                } catch (Exception e) {
                        Log.e("TrainInfo", "Error registering exception handler", e);
                }
                
                CheckUpdates update = new CheckUpdates();
                update.checkForUpdates(this, "http://t-hoerup.dk/android/traininfo/version.txt", "TrainInfo DK", null);
                /*
                Runnable r = new Runnable() {
                        @Override
                        public void run() {
                                View splash = findViewById(R.id.splash);
                                splash.setVisibility(View.GONE);
                        }
                };              
                handler.postDelayed(r, 1500);
                */
                
                StationProvider sp = ProviderFactory.getStationProvider();
                
                if (sp instanceof OfflineStationProvider ) {
                        OfflineStationProvider osp = (OfflineStationProvider) sp;
                        long last = prefs.getLong(stationsreload, 0);
                        long now = System.currentTimeMillis();
                        Log.i("TrainInfo", "Last Load: " + last);

                        boolean didLoad = false;

                        try {
                                didLoad = osp.loadStations(this);
                        }                                                                                               
                        catch (InvalidClassException e) {
                                Log.i("TrainInfo", "invalid class - do a new download of stationlist");
                        }
                        catch (Exception e) {
                                Toast.makeText(this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
                                Log.e("TrainInfo", "load error", e);
                        }

                        if (didLoad == false) {                                 
                                stationLoader = new StationLoader(osp, false);
                                stationLoader.execute( (Void)null);
                        } else {
                                if ( (now-last) > (14*24*60*60*1000) ) { //if we had a stations list but it was too old, load a new one silent
                                        Log.i("TrainInfo", "Stationlist too old, do a silent download");
                                        stationLoader = new StationLoader(osp, true); 
                                        stationLoader.execute( (Void)null);
                                }
                        }

                }
                
                
        }
        

        @Override
        protected void onDestroy() {
                super.onDestroy();
                if (stationLoader != null) {
                        stationLoader.cancel(true);
                        stationLoader = null;
                }               
                
                ProviderFactory.purgeOldEntries(); //exiting application, do some cleanup
        }


        @Override
        public boolean onCreateOptionsMenu(Menu menu) {
                MenuItem item;
                
                item = menu.add(0, MENU_SETTINGS, 0, getString(R.string.welcome_settings) );
                item.setIcon(android.R.drawable.ic_menu_preferences);
                
                item = menu.add(0, MENU_RELOAD, 0, getString(R.string.welcome_reloadstations));
                item.setIcon(android.R.drawable.ic_menu_rotate);
                
                return true;
        }
        
        @Override
        public boolean onOptionsItemSelected(MenuItem item) {
                boolean retval = true;
                
                switch (item.getItemId()) {
                case MENU_SETTINGS:
                        Intent intent = new Intent(WelcomeScreen.this, SettingsScreen.class);
                        WelcomeScreen.this.startActivity(intent);
                        break;
                        
                case MENU_RELOAD:
                        OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
                        new StationLoader(osp, false).execute( (Void)null);                     
                        break;
                        
                default:
                        retval = super.onOptionsItemSelected(item);
                }
                
                return retval;
        }
        

        class AboutListener implements OnClickListener {

                @Override
                public void onClick(View v) {
                        /*
                        String appName = WelcomeScreen.this.getResources().getString(R.string.app_name);
                        String ver = WelcomeScreen.this.getResources().getString(R.string.app_version);                 
                        
                        StringBuffer message = new StringBuffer();
                        message.append(appName);
                        message.append(" v").append(ver).append("\n");
                        message.append("By Torben H. Nielsen\n"); 

                        MessageBox.showMessage(WelcomeScreen.this, message.toString());*/
                        /*Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://t-hoerup.dk/android/traininfo/")); 
                        startActivity(browserIntent);*/
                        
                        Intent intent = new Intent(WelcomeScreen.this, AboutScreen.class);
                        WelcomeScreen.this.startActivity(intent);
                }

        }
        

        class StationListListener implements OnClickListener{
                ListType launchType;
                StationListListener(ListType type) {
                        launchType = type;
                }
                
                @Override
                public void onClick(View v) {
                        
                        StationProvider sp = ProviderFactory.getStationProvider();
                        
                        if (sp instanceof OfflineStationProvider ) {
                                OfflineStationProvider osp = (OfflineStationProvider) sp;
                                
                                if (! osp.hasStations()) {
                                        stationLoader = new StationLoader(osp, false);
                                        stationLoader.execute( (Void)null);     
                                        return;
                                }
                        }
                        
                        Intent intent = new Intent(WelcomeScreen.this, StationList.class);
                        intent.putExtra("type", launchType);
                        WelcomeScreen.this.startActivity(intent);
                }
                
        }
        
        class StationLoader extends AsyncTask<Void,Void,Void> {


                boolean succeeded;
                ProgressDialog dlg;
                OfflineStationProvider osp;
                String exMsg;
                boolean silent;
                
                public StationLoader(OfflineStationProvider osp, boolean silent) {
                        this.osp = osp;
                        this.silent = silent;
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                        try {
                                osp.downloadStations( WelcomeScreen.this );
                                succeeded = true;
                        } catch (Exception e) {
                                succeeded = false;
                                exMsg = e.getMessage();
                                Log.e("TrainInfo", "download error", e);                                
                        }
                        return null;
                }

                
                @Override
                protected void onPreExecute() {
                        super.onPreExecute();
                        Log.i("TrainInfo", "StationLoader.onPreExecute() ");
                        
                        if (silent == false) {
                                dlg = new ProgressDialog(WelcomeScreen.this);
                                dlg.setMessage( getText(R.string.welcome_downloadingstations) );
                                dlg.setCancelable(false);
                                dlg.show();
                        } 
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);
                        Log.i("TrainInfo", "StationLoader.onPostExecute() ");
                        
                        if (silent == false) {
                                try {
                                        dlg.dismiss();
                                } catch (Exception e) {
                                        Log.e("TrainInfo", "Exception while closing dialog", e); // don't crash program
                                }
                                dlg = null;
                        }
                        
                        if (succeeded) {
                                Editor edit = prefs.edit();
                                edit.putLong(stationsreload, System.currentTimeMillis() );
                                edit.commit();
                        } else {
                                if (silent == false) {
                                        Toast.makeText(WelcomeScreen.this, "Error " + exMsg, Toast.LENGTH_LONG).show();
                                }
                        }
                }       
        }
        
}
1	torben	481	package dk.thoerup.traininfo;
2
3	torben	1548
4
5	torben	1555	import java.io.InvalidClassException;
6
7	torben	481	import android.app.Activity;
8	torben	1547	import android.app.ProgressDialog;
9	torben	481	import android.content.Intent;
10	torben	1547	import android.content.SharedPreferences;
11			import android.content.SharedPreferences.Editor;
12			import android.os.AsyncTask;
13	torben	481	import android.os.Bundle;
14	torben	743	import android.os.Handler;
15	torben	1159	import android.util.Log;
16	torben	1548	import android.view.Menu;
17			import android.view.MenuItem;
18	torben	481	import android.view.View;
19	torben	1547	import android.view.View.OnClickListener;
20	torben	482	import android.view.Window;
21	torben	481	import android.widget.Button;
22	torben	1547	import android.widget.Toast;
23	torben	481
24	torben	720	import com.nullwire.trace.ExceptionHandler;
25
26	torben	1131	import dk.thoerup.androidutils.CheckUpdates;
27	torben	1547	import dk.thoerup.traininfo.provider.OfflineStationProvider;
28	torben	1159	import dk.thoerup.traininfo.provider.ProviderFactory;
29	torben	1547	import dk.thoerup.traininfo.provider.StationProvider;
30	torben	720
31	torben	1551
32	torben	481	public class WelcomeScreen extends Activity{
33	torben	1547
34			final static String stationsreload = "stationsreload";
35	torben	1548	final static int MENU_SETTINGS = 1;
36			final static int MENU_RELOAD = 2;
37	torben	1547
38	torben	1548
39	torben	481	public enum ListType {
40			ListNearest,
41			ListSearch,
42			ListFavorites
43			}
44
45	torben	2123
46	torben	743	Handler handler = new Handler();
47
48	torben	1547	SharedPreferences prefs;
49
50	torben	1567	StationLoader stationLoader;
51
52	torben	481	@Override
53			public void onCreate(Bundle savedInstanceState) {
54	torben	916
55			super.onCreate(savedInstanceState);
56	torben	1547
57			prefs = getSharedPreferences("TrainStation", 0);
58
59	torben	482	requestWindowFeature( Window.FEATURE_NO_TITLE );
60	torben	481	setContentView(R.layout.welcome);
61
62			Button nearestButton = (Button) findViewById(R.id.nearest);
63			nearestButton.setOnClickListener( new StationListListener(ListType.ListNearest));
64
65			Button searchButton = (Button) findViewById(R.id.search);
66			searchButton.setOnClickListener( new StationListListener(ListType.ListSearch));
67
68			Button favoritesButton = (Button) findViewById(R.id.favorites);
69			favoritesButton.setOnClickListener( new StationListListener(ListType.ListFavorites));
70
71			Button aboutButton = (Button) findViewById(R.id.about);
72			aboutButton.setOnClickListener( new AboutListener() );
73	torben	1714
74			//Got stacktraces / reports that the register thing sometimes crashes
75			try {
76			ExceptionHandler.register(this, "http://t-hoerup.dk/android/trace.php");
77			} catch (Exception e) {
78			Log.e("TrainInfo", "Error registering exception handler", e);
79			}
80	torben	568
81	torben	720	CheckUpdates update = new CheckUpdates();
82	torben	911	update.checkForUpdates(this, "http://t-hoerup.dk/android/traininfo/version.txt", "TrainInfo DK", null);
83	torben	846	/*
84	torben	743	Runnable r = new Runnable() {
85			@Override
86			public void run() {
87			View splash = findViewById(R.id.splash);
88			splash.setVisibility(View.GONE);
89			}
90			};
91			handler.postDelayed(r, 1500);
92	torben	846	*/
93	torben	1547
94			StationProvider sp = ProviderFactory.getStationProvider();
95
96			if (sp instanceof OfflineStationProvider ) {
97			OfflineStationProvider osp = (OfflineStationProvider) sp;
98	torben	1555	long last = prefs.getLong(stationsreload, 0);
99			long now = System.currentTimeMillis();
100			Log.i("TrainInfo", "Last Load: " + last);
101	torben	1626
102			boolean didLoad = false;
103
104			try {
105			didLoad = osp.loadStations(this);
106			}
107			catch (InvalidClassException e) {
108			Log.i("TrainInfo", "invalid class - do a new download of stationlist");
109			}
110			catch (Exception e) {
111			Toast.makeText(this, "" + e.getMessage(), Toast.LENGTH_SHORT).show();
112			Log.e("TrainInfo", "load error", e);
113			}
114
115			if (didLoad == false) {
116			stationLoader = new StationLoader(osp, false);
117	torben	1567	stationLoader.execute( (Void)null);
118	torben	1555	} else {
119	torben	1626	if ( (now-last) > (142460601000) ) { //if we had a stations list but it was too old, load a new one silent
120			Log.i("TrainInfo", "Stationlist too old, do a silent download");
121			stationLoader = new StationLoader(osp, true);
122	torben	1567	stationLoader.execute( (Void)null);
123	torben	1547	}
124			}
125	torben	1555
126	torben	1547	}
127	torben	2123
128
129	torben	481	}
130	torben	2123
131	torben	1626
132
133	torben	1159	@Override
134			protected void onDestroy() {
135			super.onDestroy();
136	torben	1567	if (stationLoader != null) {
137	torben	1594	stationLoader.cancel(true);
138	torben	2123	stationLoader = null;
139	torben	2124	}
140	torben	1567
141	torben	1159	ProviderFactory.purgeOldEntries(); //exiting application, do some cleanup
142			}
143
144
145	torben	1548	@Override
146			public boolean onCreateOptionsMenu(Menu menu) {
147			MenuItem item;
148
149			item = menu.add(0, MENU_SETTINGS, 0, getString(R.string.welcome_settings) );
150			item.setIcon(android.R.drawable.ic_menu_preferences);
151
152			item = menu.add(0, MENU_RELOAD, 0, getString(R.string.welcome_reloadstations));
153			item.setIcon(android.R.drawable.ic_menu_rotate);
154
155			return true;
156			}
157
158			@Override
159			public boolean onOptionsItemSelected(MenuItem item) {
160			boolean retval = true;
161
162			switch (item.getItemId()) {
163			case MENU_SETTINGS:
164			Intent intent = new Intent(WelcomeScreen.this, SettingsScreen.class);
165			WelcomeScreen.this.startActivity(intent);
166			break;
167
168			case MENU_RELOAD:
169			OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
170	torben	1626	new StationLoader(osp, false).execute( (Void)null);
171	torben	1548	break;
172
173			default:
174			retval = super.onOptionsItemSelected(item);
175			}
176
177			return retval;
178			}
179
180	torben	1159
181	torben	481	class AboutListener implements OnClickListener {
182
183			@Override
184			public void onClick(View v) {
185	torben	500	/*
186	torben	484	String appName = WelcomeScreen.this.getResources().getString(R.string.app_name);
187			String ver = WelcomeScreen.this.getResources().getString(R.string.app_version);
188
189	torben	483	StringBuffer message = new StringBuffer();
190	torben	484	message.append(appName);
191			message.append(" v").append(ver).append("\n");
192	torben	483	message.append("By Torben H. Nielsen\n");
193
194	torben	500	MessageBox.showMessage(WelcomeScreen.this, message.toString());*/
195	torben	1638	/*Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://t-hoerup.dk/android/traininfo/"));
196			startActivity(browserIntent);*/
197
198			Intent intent = new Intent(WelcomeScreen.this, AboutScreen.class);
199			WelcomeScreen.this.startActivity(intent);
200	torben	481	}
201	torben	483
202	torben	481	}
203	torben	1446
204	torben	483
205	torben	481	class StationListListener implements OnClickListener{
206			ListType launchType;
207			StationListListener(ListType type) {
208			launchType = type;
209			}
210
211			@Override
212			public void onClick(View v) {
213	torben	1572
214			StationProvider sp = ProviderFactory.getStationProvider();
215
216			if (sp instanceof OfflineStationProvider ) {
217			OfflineStationProvider osp = (OfflineStationProvider) sp;
218
219			if (! osp.hasStations()) {
220	torben	1626	stationLoader = new StationLoader(osp, false);
221	torben	1572	stationLoader.execute( (Void)null);
222			return;
223			}
224			}
225
226	torben	481	Intent intent = new Intent(WelcomeScreen.this, StationList.class);
227			intent.putExtra("type", launchType);
228			WelcomeScreen.this.startActivity(intent);
229			}
230
231			}
232	torben	1547
233			class StationLoader extends AsyncTask<Void,Void,Void> {
234
235
236			boolean succeeded;
237			ProgressDialog dlg;
238			OfflineStationProvider osp;
239	torben	1550	String exMsg;
240	torben	1626	boolean silent;
241	torben	1547
242	torben	1626	public StationLoader(OfflineStationProvider osp, boolean silent) {
243	torben	1547	this.osp = osp;
244	torben	1626	this.silent = silent;
245	torben	1547	}
246
247			@Override
248			protected Void doInBackground(Void... params) {
249			try {
250			osp.downloadStations( WelcomeScreen.this );
251			succeeded = true;
252			} catch (Exception e) {
253			succeeded = false;
254	torben	1626	exMsg = e.getMessage();
255			Log.e("TrainInfo", "download error", e);
256	torben	1547	}
257			return null;
258			}
259
260	torben	1565
261	torben	1547	@Override
262			protected void onPreExecute() {
263			super.onPreExecute();
264	torben	1626	Log.i("TrainInfo", "StationLoader.onPreExecute() ");
265	torben	1547
266	torben	1626	if (silent == false) {
267			dlg = new ProgressDialog(WelcomeScreen.this);
268			dlg.setMessage( getText(R.string.welcome_downloadingstations) );
269			dlg.setCancelable(false);
270			dlg.show();
271			}
272	torben	1547	}
273
274			@Override
275			protected void onPostExecute(Void result) {
276			super.onPostExecute(result);
277	torben	1626	Log.i("TrainInfo", "StationLoader.onPostExecute() ");
278	torben	1547
279	torben	1626	if (silent == false) {
280	torben	1718	try {
281			dlg.dismiss();
282			} catch (Exception e) {
283			Log.e("TrainInfo", "Exception while closing dialog", e); // don't crash program
284			}
285	torben	1626	dlg = null;
286			}
287	torben	1547
288			if (succeeded) {
289			Editor edit = prefs.edit();
290			edit.putLong(stationsreload, System.currentTimeMillis() );
291			edit.commit();
292	torben	1550	} else {
293	torben	1626	if (silent == false) {
294			Toast.makeText(WelcomeScreen.this, "Error " + exMsg, Toast.LENGTH_LONG).show();
295			}
296	torben	1547	}
297			}
298			}
299
300	torben	481	}