thoerup/traininfo/TrainInfoList.java

package dk.thoerup.traininfo;

import java.util.ArrayList;
import java.util.List;

import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;

import android.view.View;
import android.widget.ListView;
import dk.thoerup.traininfo.util.MessageBox;

public class TrainInfoList extends ListActivity  {
        public static final int GOTLOCATION = 1;
        public static final int GOTSTATIONLIST = 2;
        public static final int NOPROVIDER = 3;
        public static final int FIXTIMEOUT = 4;
        public static final int LOOKUPSTATIONFAILED = 5;
        
        public static final int DLG_PROGRESS = 1;
        
        /** Called when the activity is first created. */
        ProgressDialog dialog;
        StationLocator locator = null;
        LocatorTask locatorTask = new LocatorTask();
        
        boolean isRunning = false;
        List<StationBean> stations = new ArrayList<StationBean>();
        
        
        StationListAdapter adapter = null;
        @SuppressWarnings("unchecked")
        @Override
        public void onCreate(Bundle savedInstanceState) {
                super.onCreate(savedInstanceState);
                setContentView(R.layout.main);
                
                StationLocator.removeMockLocation(this);
                //StationLocator.injectMockLocation(this);
                
                adapter = new StationListAdapter(this);
                setListAdapter(adapter);
                
                locator = new StationLocator(this, stationsFetched);
                if (savedInstanceState == null) {
                        startLookup();
                } else {
                        stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
                        adapter.setStations(stations);
                }
        }
        
    @Override 
    public void onSaveInstanceState(Bundle outState) 
    {
        if (dialog != null && dialog.isShowing())
                dialog.dismiss();
        outState.putSerializable("stations", (ArrayList<StationBean>) stations);
    }
        
        
        @Override
        protected Dialog onCreateDialog(int id) {
                switch (id) {
                case DLG_PROGRESS:
                        ProgressDialog dlg = new ProgressDialog(this);
                        dlg.setMessage("Wait for location fix");
                        dlg.setCancelable(false);
                        return dlg;
                default:
                        return super.onCreateDialog(id);                
                }
                
        }
        
        
        @Override
        protected void onPrepareDialog(int id, Dialog dialog) {
                super.onPrepareDialog(id, dialog);
                switch (id) {
                case DLG_PROGRESS:
                        this.dialog = (ProgressDialog) dialog;
                        break;
                }
        }

        public void startLookup() {
                isRunning = true;
                showDialog(DLG_PROGRESS);
                
                locator.locateStations();
                stationsFetched.sendEmptyMessageDelayed(FIXTIMEOUT, 20000);
        }


        Handler stationsFetched = new Handler() {
                @Override
                public void handleMessage(Message msg) {
                        switch (msg.what) {
                        case GOTLOCATION:
                                dialog.setMessage("Finding nearby stations");
                                locatorTask.execute();
                                break;
                        case GOTSTATIONLIST:
                                dialog.dismiss();
                                if (locator.getStations().size() == 0)
                                        MessageBox.showMessage(TrainInfoList.this,"Error loading station list!");
                                stations = locator.getStations();
                                adapter.setStations( stations );
                                break;
                        case NOPROVIDER:
                                dialog.dismiss();
                                MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
                                break;
                        case FIXTIMEOUT:
                                dialog.dismiss();
                                if (isRunning) {
                                        locator.abortLocationListener();
                                        if (locator.hasLocation()) {
                                                msg.what = GOTLOCATION;
                                                handleMessage( msg ); // ToDo: ugly recursive call !!!
                                        } else {
                                                MessageBox.showMessage(TrainInfoList.this,"GPS fix timed out");
                                        }
                                }
                                break;
                        case LOOKUPSTATIONFAILED:
                                dialog.dismiss();
                                MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
                                break;
                        }
                        isRunning = false;
                }
        };
        
        
        @Override
        protected void onListItemClick(ListView l, View v, int position, long id) {
                super.onListItemClick(l, v, position, id);
                
                
                StationBean station = stations.get(position);
                
                
                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("name", station.getName());
                intent.putExtra("address", station.getAddress());
                intent.putExtra("distance", station.getDistance());
                intent.putExtra("latitude", station.getLatitude());
                intent.putExtra("longitude", station.getLongitude());
                startActivity(intent);
        }

        
        class LocatorTask extends AsyncTask<Void,Void,Void> {
                @Override
                protected void onPreExecute() {

                        super.onPreExecute();
                }
                
                @Override
                protected Void doInBackground(Void... params) {
                        locator.findNearestStations();
                        
                        return null;
                }

                @Override
                protected void onPostExecute(Void result) {
                        super.onPostExecute(result);

                }
        }
}
1	torben	237	package dk.thoerup.traininfo;
2
3	torben	258	import java.util.ArrayList;
4			import java.util.List;
5
6	torben	237	import android.app.Dialog;
7			import android.app.ListActivity;
8			import android.app.ProgressDialog;
9			import android.content.Intent;
10	torben	241	import android.os.AsyncTask;
11	torben	237	import android.os.Bundle;
12			import android.os.Handler;
13			import android.os.Message;
14	torben	258
15	torben	237	import android.view.View;
16			import android.widget.ListView;
17	torben	245	import dk.thoerup.traininfo.util.MessageBox;
18	torben	237
19			public class TrainInfoList extends ListActivity {
20			public static final int GOTLOCATION = 1;
21			public static final int GOTSTATIONLIST = 2;
22			public static final int NOPROVIDER = 3;
23			public static final int FIXTIMEOUT = 4;
24			public static final int LOOKUPSTATIONFAILED = 5;
25
26			public static final int DLG_PROGRESS = 1;
27
28			/** Called when the activity is first created. */
29			ProgressDialog dialog;
30			StationLocator locator = null;
31	torben	241	LocatorTask locatorTask = new LocatorTask();
32	torben	237
33	torben	258	boolean isRunning = false;
34			List<StationBean> stations = new ArrayList<StationBean>();
35
36
37	torben	237	StationListAdapter adapter = null;
38	torben	258	@SuppressWarnings("unchecked")
39	torben	237	@Override
40			public void onCreate(Bundle savedInstanceState) {
41			super.onCreate(savedInstanceState);
42			setContentView(R.layout.main);
43
44	torben	252	StationLocator.removeMockLocation(this);
45	torben	241	//StationLocator.injectMockLocation(this);
46
47	torben	237	adapter = new StationListAdapter(this);
48			setListAdapter(adapter);
49
50			locator = new StationLocator(this, stationsFetched);
51	torben	258	if (savedInstanceState == null) {
52			startLookup();
53			} else {
54			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
55	torben	260	adapter.setStations(stations);
56	torben	258	}
57	torben	237	}
58
59	torben	243	@Override
60			public void onSaveInstanceState(Bundle outState)
61			{
62	torben	258	if (dialog != null && dialog.isShowing())
63	torben	243	dialog.dismiss();
64	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
65	torben	243	}
66	torben	237
67	torben	243
68	torben	237
69			@Override
70			protected Dialog onCreateDialog(int id) {
71			switch (id) {
72			case DLG_PROGRESS:
73			ProgressDialog dlg = new ProgressDialog(this);
74			dlg.setMessage("Wait for location fix");
75			dlg.setCancelable(false);
76			return dlg;
77			default:
78			return super.onCreateDialog(id);
79			}
80
81			}
82
83
84
85			@Override
86			protected void onPrepareDialog(int id, Dialog dialog) {
87			super.onPrepareDialog(id, dialog);
88			switch (id) {
89			case DLG_PROGRESS:
90			this.dialog = (ProgressDialog) dialog;
91			break;
92			}
93			}
94
95			public void startLookup() {
96			isRunning = true;
97			showDialog(DLG_PROGRESS);
98
99			locator.locateStations();
100	torben	258	stationsFetched.sendEmptyMessageDelayed(FIXTIMEOUT, 20000);
101	torben	237	}
102
103
104			Handler stationsFetched = new Handler() {
105			@Override
106			public void handleMessage(Message msg) {
107			switch (msg.what) {
108			case GOTLOCATION:
109			dialog.setMessage("Finding nearby stations");
110	torben	241	locatorTask.execute();
111	torben	237	break;
112			case GOTSTATIONLIST:
113			dialog.dismiss();
114	torben	245	if (locator.getStations().size() == 0)
115			MessageBox.showMessage(TrainInfoList.this,"Error loading station list!");
116	torben	258	stations = locator.getStations();
117			adapter.setStations( stations );
118	torben	237	break;
119			case NOPROVIDER:
120			dialog.dismiss();
121	torben	245	MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
122	torben	237	break;
123			case FIXTIMEOUT:
124			dialog.dismiss();
125			if (isRunning) {
126			locator.abortLocationListener();
127	torben	285	if (locator.hasLocation()) {
128			msg.what = GOTLOCATION;
129			handleMessage( msg ); // ToDo: ugly recursive call !!!
130			} else {
131			MessageBox.showMessage(TrainInfoList.this,"GPS fix timed out");
132			}
133	torben	237	}
134			break;
135			case LOOKUPSTATIONFAILED:
136			dialog.dismiss();
137	torben	245	MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
138	torben	237	break;
139			}
140			isRunning = false;
141			}
142			};
143
144
145
146			@Override
147			protected void onListItemClick(ListView l, View v, int position, long id) {
148			super.onListItemClick(l, v, position, id);
149
150
151	torben	258	StationBean station = stations.get(position);
152	torben	237
153	torben	258
154	torben	237	Intent intent = new Intent(this, DepartureList.class);
155			intent.putExtra("name", station.getName());
156			intent.putExtra("address", station.getAddress());
157			intent.putExtra("distance", station.getDistance());
158	torben	239	intent.putExtra("latitude", station.getLatitude());
159			intent.putExtra("longitude", station.getLongitude());
160	torben	237	startActivity(intent);
161			}
162
163	torben	241
164			class LocatorTask extends AsyncTask<Void,Void,Void> {
165			@Override
166			protected void onPreExecute() {
167	torben	258
168	torben	241	super.onPreExecute();
169			}
170
171			@Override
172			protected Void doInBackground(Void... params) {
173			locator.findNearestStations();
174	torben	258
175	torben	241	return null;
176			}
177
178			@Override
179			protected void onPostExecute(Void result) {
180			super.onPostExecute(result);
181	torben	258
182	torben	241	}
183			}
184	torben	237	}