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.net.Uri;
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() );
                
                ExceptionHandler.register(this, "http://t-hoerup.dk/android/trace.php");
                
                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);
                        
                        if ( (now-last) > (14*24*60*60*1000) ) {
                                stationLoader = new StationLoader(osp);
                                stationLoader.execute( (Void)null);
                        } else {
                        
                                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);
                                        stationLoader.execute( (Void)null);
                                }
                        }

                }
        }
        
        
        @Override
        protected void onDestroy() {
                super.onDestroy();
                if (stationLoader != null) {
                        stationLoader.cancel(false);
                }
                
                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).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);
                }

        }
        

        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);
                                        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;
                
                public StationLoader(OfflineStationProvider osp) {
                        this.osp = osp;
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                        try {
                                osp.downloadStations( WelcomeScreen.this );
                                succeeded = true;
                        } catch (Exception e) {
                                succeeded = false;
                                exMsg = e.getMessage();                         
                        }
                        return null;
                }

                
                @Override
                protected void onPreExecute() {
                        super.onPreExecute();
                        
                        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);
                        
                        dlg.dismiss();
                        dlg = null;
                        
                        if (succeeded) {
                                Editor edit = prefs.edit();
                                edit.putLong(stationsreload, System.currentTimeMillis() );
                                edit.commit();
                        } else {
                                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	torben	500	import android.net.Uri;
13	torben	1547	import android.os.AsyncTask;
14	torben	481	import android.os.Bundle;
15	torben	743	import android.os.Handler;
16	torben	1159	import android.util.Log;
17	torben	1548	import android.view.Menu;
18			import android.view.MenuItem;
19	torben	481	import android.view.View;
20	torben	1547	import android.view.View.OnClickListener;
21	torben	482	import android.view.Window;
22	torben	481	import android.widget.Button;
23	torben	1547	import android.widget.Toast;
24	torben	481
25	torben	720	import com.nullwire.trace.ExceptionHandler;
26
27	torben	1131	import dk.thoerup.androidutils.CheckUpdates;
28	torben	1547	import dk.thoerup.traininfo.provider.OfflineStationProvider;
29	torben	1159	import dk.thoerup.traininfo.provider.ProviderFactory;
30	torben	1547	import dk.thoerup.traininfo.provider.StationProvider;
31	torben	720
32	torben	1551
33	torben	481	public class WelcomeScreen extends Activity{
34	torben	1547
35			final static String stationsreload = "stationsreload";
36	torben	1548	final static int MENU_SETTINGS = 1;
37			final static int MENU_RELOAD = 2;
38	torben	1547
39	torben	1548
40	torben	481	public enum ListType {
41			ListNearest,
42			ListSearch,
43			ListFavorites
44			}
45
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	568
74			ExceptionHandler.register(this, "http://t-hoerup.dk/android/trace.php");
75	torben	720
76			CheckUpdates update = new CheckUpdates();
77	torben	911	update.checkForUpdates(this, "http://t-hoerup.dk/android/traininfo/version.txt", "TrainInfo DK", null);
78	torben	846	/*
79	torben	743	Runnable r = new Runnable() {
80			@Override
81			public void run() {
82			View splash = findViewById(R.id.splash);
83			splash.setVisibility(View.GONE);
84			}
85			};
86			handler.postDelayed(r, 1500);
87	torben	846	*/
88	torben	1547
89			StationProvider sp = ProviderFactory.getStationProvider();
90
91			if (sp instanceof OfflineStationProvider ) {
92			OfflineStationProvider osp = (OfflineStationProvider) sp;
93	torben	1555	long last = prefs.getLong(stationsreload, 0);
94			long now = System.currentTimeMillis();
95			Log.i("TrainInfo", "Last Load: " + last);
96
97			if ( (now-last) > (142460601000) ) {
98	torben	1567	stationLoader = new StationLoader(osp);
99			stationLoader.execute( (Void)null);
100	torben	1555	} else {
101
102			boolean didLoad = false;
103	torben	1547
104	torben	1555	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	torben	1547
115	torben	1555	if (didLoad == false) {
116	torben	1567	stationLoader = new StationLoader(osp);
117			stationLoader.execute( (Void)null);
118	torben	1547	}
119			}
120	torben	1555
121	torben	1547	}
122	torben	481	}
123	torben	1159
124
125	torben	743
126	torben	1159	@Override
127			protected void onDestroy() {
128			super.onDestroy();
129	torben	1567	if (stationLoader != null) {
130			stationLoader.cancel(false);
131			}
132
133	torben	1159	ProviderFactory.purgeOldEntries(); //exiting application, do some cleanup
134			}
135
136
137	torben	1548	@Override
138			public boolean onCreateOptionsMenu(Menu menu) {
139			MenuItem item;
140
141			item = menu.add(0, MENU_SETTINGS, 0, getString(R.string.welcome_settings) );
142			item.setIcon(android.R.drawable.ic_menu_preferences);
143
144			item = menu.add(0, MENU_RELOAD, 0, getString(R.string.welcome_reloadstations));
145			item.setIcon(android.R.drawable.ic_menu_rotate);
146
147			return true;
148			}
149
150			@Override
151			public boolean onOptionsItemSelected(MenuItem item) {
152			boolean retval = true;
153
154			switch (item.getItemId()) {
155			case MENU_SETTINGS:
156			Intent intent = new Intent(WelcomeScreen.this, SettingsScreen.class);
157			WelcomeScreen.this.startActivity(intent);
158			break;
159
160			case MENU_RELOAD:
161			OfflineStationProvider osp = (OfflineStationProvider) ProviderFactory.getStationProvider();
162			new StationLoader(osp).execute( (Void)null);
163			break;
164
165			default:
166			retval = super.onOptionsItemSelected(item);
167			}
168
169			return retval;
170			}
171
172	torben	1159
173	torben	481	class AboutListener implements OnClickListener {
174
175			@Override
176			public void onClick(View v) {
177	torben	500	/*
178	torben	484	String appName = WelcomeScreen.this.getResources().getString(R.string.app_name);
179			String ver = WelcomeScreen.this.getResources().getString(R.string.app_version);
180
181	torben	483	StringBuffer message = new StringBuffer();
182	torben	484	message.append(appName);
183			message.append(" v").append(ver).append("\n");
184	torben	483	message.append("By Torben H. Nielsen\n");
185
186	torben	500	MessageBox.showMessage(WelcomeScreen.this, message.toString());*/
187	torben	1393	Intent browserIntent = new Intent(Intent.ACTION_VIEW, Uri.parse("http://t-hoerup.dk/android/traininfo/"));
188	torben	500	startActivity(browserIntent);
189	torben	481	}
190	torben	483
191	torben	481	}
192	torben	1446
193	torben	483
194	torben	481	class StationListListener implements OnClickListener{
195			ListType launchType;
196			StationListListener(ListType type) {
197			launchType = type;
198			}
199
200			@Override
201			public void onClick(View v) {
202	torben	1572
203			StationProvider sp = ProviderFactory.getStationProvider();
204
205			if (sp instanceof OfflineStationProvider ) {
206			OfflineStationProvider osp = (OfflineStationProvider) sp;
207
208			if (! osp.hasStations()) {
209			stationLoader = new StationLoader(osp);
210			stationLoader.execute( (Void)null);
211			return;
212			}
213			}
214
215	torben	481	Intent intent = new Intent(WelcomeScreen.this, StationList.class);
216			intent.putExtra("type", launchType);
217			WelcomeScreen.this.startActivity(intent);
218			}
219
220			}
221	torben	1547
222			class StationLoader extends AsyncTask<Void,Void,Void> {
223
224
225			boolean succeeded;
226			ProgressDialog dlg;
227			OfflineStationProvider osp;
228	torben	1550	String exMsg;
229	torben	1547
230			public StationLoader(OfflineStationProvider osp) {
231			this.osp = osp;
232			}
233
234			@Override
235			protected Void doInBackground(Void... params) {
236			try {
237			osp.downloadStations( WelcomeScreen.this );
238			succeeded = true;
239			} catch (Exception e) {
240			succeeded = false;
241	torben	1550	exMsg = e.getMessage();
242	torben	1547	}
243			return null;
244			}
245
246	torben	1565
247	torben	1547	@Override
248			protected void onPreExecute() {
249			super.onPreExecute();
250
251			dlg = new ProgressDialog(WelcomeScreen.this);
252	torben	1565	dlg.setMessage( getText(R.string.welcome_downloadingstations) );
253	torben	1571	dlg.setCancelable(false);
254	torben	1547	dlg.show();
255			}
256
257			@Override
258			protected void onPostExecute(Void result) {
259			super.onPostExecute(result);
260
261			dlg.dismiss();
262			dlg = null;
263
264			if (succeeded) {
265			Editor edit = prefs.edit();
266			edit.putLong(stationsreload, System.currentTimeMillis() );
267			edit.commit();
268	torben	1550	} else {
269			Toast.makeText(WelcomeScreen.this, "Error " + exMsg, Toast.LENGTH_LONG).show();
270	torben	1547	}
271			}
272			}
273
274	torben	481	}