thoerup/traininfo/StationList.java

package dk.thoerup.traininfo;

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

import android.app.Dialog;
import android.app.ListActivity;
import android.app.ProgressDialog;
import android.content.Intent;
import android.location.Address;
import android.location.Geocoder;
import android.os.AsyncTask;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.util.Log;
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);

                double latitude = station.getLatitude();
                double longitude = station.getLongitude();
                String addr = station.getAddress();

                if (addr == null || addr.trim().equals("") )
                        addr = lookupAddress(latitude, longitude);

                
                Intent intent = new Intent(this, DepartureList.class);
                intent.putExtra("name", station.getName());
                intent.putExtra("address", addr);
                intent.putExtra("distance", station.getDistance());
                intent.putExtra("latitude", latitude);
                intent.putExtra("longitude", longitude);
                intent.putExtra("code", station.getCode());
                startActivity(intent);
        }

        String lookupAddress(double latitude, double longitude) {
                
                Geocoder coder = new Geocoder(this, new Locale("da"));
                StringBuilder sb = new StringBuilder();
                Log.i("lookupaddr", "" + latitude + "/" + longitude);
                try {
                        List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
                        Address addr = addressList.get(0);
                        
                        
                        int max = addr.getMaxAddressLineIndex();
                        for (int i=0; i<max; i++) {
                                if (i>0)
                                        sb.append(", ");
                                
                                sb.append(addr.getAddressLine(i));
                        }
                        
                        
                } catch (Exception e) {
                        Log.e("DepartureList", "geocoder failed", e);
                }
                
                return sb.toString();
        }
        
        
        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	torben	294	import java.util.Locale;
6	torben	258
7	torben	237	import android.app.Dialog;
8			import android.app.ListActivity;
9			import android.app.ProgressDialog;
10			import android.content.Intent;
11	torben	294	import android.location.Address;
12			import android.location.Geocoder;
13	torben	241	import android.os.AsyncTask;
14	torben	237	import android.os.Bundle;
15			import android.os.Handler;
16			import android.os.Message;
17	torben	294	import android.util.Log;
18	torben	237	import android.view.View;
19			import android.widget.ListView;
20	torben	245	import dk.thoerup.traininfo.util.MessageBox;
21	torben	237
22			public class TrainInfoList extends ListActivity {
23			public static final int GOTLOCATION = 1;
24			public static final int GOTSTATIONLIST = 2;
25			public static final int NOPROVIDER = 3;
26			public static final int FIXTIMEOUT = 4;
27			public static final int LOOKUPSTATIONFAILED = 5;
28
29			public static final int DLG_PROGRESS = 1;
30
31			/** Called when the activity is first created. */
32			ProgressDialog dialog;
33			StationLocator locator = null;
34	torben	241	LocatorTask locatorTask = new LocatorTask();
35	torben	237
36	torben	258	boolean isRunning = false;
37			List<StationBean> stations = new ArrayList<StationBean>();
38
39
40	torben	237	StationListAdapter adapter = null;
41	torben	258	@SuppressWarnings("unchecked")
42	torben	237	@Override
43			public void onCreate(Bundle savedInstanceState) {
44			super.onCreate(savedInstanceState);
45			setContentView(R.layout.main);
46
47	torben	294	//StationLocator.removeMockLocation(this);
48			StationLocator.injectMockLocation(this);
49	torben	241
50	torben	237	adapter = new StationListAdapter(this);
51			setListAdapter(adapter);
52
53			locator = new StationLocator(this, stationsFetched);
54	torben	258	if (savedInstanceState == null) {
55			startLookup();
56			} else {
57			stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
58	torben	260	adapter.setStations(stations);
59	torben	258	}
60	torben	237	}
61
62	torben	243	@Override
63			public void onSaveInstanceState(Bundle outState)
64			{
65	torben	258	if (dialog != null && dialog.isShowing())
66	torben	243	dialog.dismiss();
67	torben	258	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
68	torben	243	}
69	torben	237
70	torben	243
71	torben	237
72			@Override
73			protected Dialog onCreateDialog(int id) {
74			switch (id) {
75			case DLG_PROGRESS:
76			ProgressDialog dlg = new ProgressDialog(this);
77			dlg.setMessage("Wait for location fix");
78			dlg.setCancelable(false);
79			return dlg;
80			default:
81			return super.onCreateDialog(id);
82			}
83
84			}
85
86
87
88			@Override
89			protected void onPrepareDialog(int id, Dialog dialog) {
90			super.onPrepareDialog(id, dialog);
91			switch (id) {
92			case DLG_PROGRESS:
93			this.dialog = (ProgressDialog) dialog;
94			break;
95			}
96			}
97
98			public void startLookup() {
99			isRunning = true;
100			showDialog(DLG_PROGRESS);
101
102			locator.locateStations();
103	torben	258	stationsFetched.sendEmptyMessageDelayed(FIXTIMEOUT, 20000);
104	torben	237	}
105
106
107			Handler stationsFetched = new Handler() {
108			@Override
109			public void handleMessage(Message msg) {
110			switch (msg.what) {
111			case GOTLOCATION:
112			dialog.setMessage("Finding nearby stations");
113	torben	241	locatorTask.execute();
114	torben	237	break;
115			case GOTSTATIONLIST:
116			dialog.dismiss();
117	torben	245	if (locator.getStations().size() == 0)
118			MessageBox.showMessage(TrainInfoList.this,"Error loading station list!");
119	torben	258	stations = locator.getStations();
120			adapter.setStations( stations );
121	torben	237	break;
122			case NOPROVIDER:
123			dialog.dismiss();
124	torben	245	MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
125	torben	237	break;
126			case FIXTIMEOUT:
127			dialog.dismiss();
128			if (isRunning) {
129			locator.abortLocationListener();
130	torben	285	if (locator.hasLocation()) {
131			msg.what = GOTLOCATION;
132			handleMessage( msg ); // ToDo: ugly recursive call !!!
133			} else {
134			MessageBox.showMessage(TrainInfoList.this,"GPS fix timed out");
135			}
136	torben	237	}
137			break;
138			case LOOKUPSTATIONFAILED:
139			dialog.dismiss();
140	torben	245	MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
141	torben	237	break;
142			}
143			isRunning = false;
144			}
145			};
146
147
148
149			@Override
150			protected void onListItemClick(ListView l, View v, int position, long id) {
151			super.onListItemClick(l, v, position, id);
152	torben	294
153	torben	258	StationBean station = stations.get(position);
154	torben	294
155			double latitude = station.getLatitude();
156			double longitude = station.getLongitude();
157			String addr = station.getAddress();
158
159			if (addr == null \|\| addr.trim().equals("") )
160			addr = lookupAddress(latitude, longitude);
161
162	torben	237
163			Intent intent = new Intent(this, DepartureList.class);
164			intent.putExtra("name", station.getName());
165	torben	294	intent.putExtra("address", addr);
166	torben	237	intent.putExtra("distance", station.getDistance());
167	torben	294	intent.putExtra("latitude", latitude);
168			intent.putExtra("longitude", longitude);
169			intent.putExtra("code", station.getCode());
170	torben	237	startActivity(intent);
171			}
172
173	torben	294	String lookupAddress(double latitude, double longitude) {
174
175			Geocoder coder = new Geocoder(this, new Locale("da"));
176			StringBuilder sb = new StringBuilder();
177			Log.i("lookupaddr", "" + latitude + "/" + longitude);
178			try {
179			List<Address> addressList = coder.getFromLocation(latitude, longitude, 1);
180			Address addr = addressList.get(0);
181
182
183			int max = addr.getMaxAddressLineIndex();
184			for (int i=0; i<max; i++) {
185			if (i>0)
186			sb.append(", ");
187
188			sb.append(addr.getAddressLine(i));
189			}
190
191
192			} catch (Exception e) {
193			Log.e("DepartureList", "geocoder failed", e);
194			}
195
196			return sb.toString();
197			}
198	torben	241
199	torben	294
200	torben	241	class LocatorTask extends AsyncTask<Void,Void,Void> {
201			@Override
202			protected void onPreExecute() {
203	torben	258
204	torben	241	super.onPreExecute();
205			}
206
207			@Override
208			protected Void doInBackground(Void... params) {
209			locator.findNearestStations();
210	torben	258
211	torben	241	return null;
212			}
213
214			@Override
215			protected void onPostExecute(Void result) {
216			super.onPostExecute(result);
217	torben	258
218	torben	241	}
219			}
220	torben	237	}