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	package dk.thoerup.traininfo;
2
3	import java.util.ArrayList;
4	import java.util.List;
5
6	import android.app.Dialog;
7	import android.app.ListActivity;
8	import android.app.ProgressDialog;
9	import android.content.Intent;
10	import android.os.AsyncTask;
11	import android.os.Bundle;
12	import android.os.Handler;
13	import android.os.Message;
14
15	import android.view.View;
16	import android.widget.ListView;
17	import dk.thoerup.traininfo.util.MessageBox;
18
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	LocatorTask locatorTask = new LocatorTask();
32
33	boolean isRunning = false;
34	List<StationBean> stations = new ArrayList<StationBean>();
35
36
37	StationListAdapter adapter = null;
38	@SuppressWarnings("unchecked")
39	@Override
40	public void onCreate(Bundle savedInstanceState) {
41	super.onCreate(savedInstanceState);
42	setContentView(R.layout.main);
43
44	StationLocator.removeMockLocation(this);
45	//StationLocator.injectMockLocation(this);
46
47	adapter = new StationListAdapter(this);
48	setListAdapter(adapter);
49
50	locator = new StationLocator(this, stationsFetched);
51	if (savedInstanceState == null) {
52	startLookup();
53	} else {
54	stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations");
55	adapter.setStations(stations);
56	}
57	}
58
59	@Override
60	public void onSaveInstanceState(Bundle outState)
61	{
62	if (dialog != null && dialog.isShowing())
63	dialog.dismiss();
64	outState.putSerializable("stations", (ArrayList<StationBean>) stations);
65	}
66
67
68
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	stationsFetched.sendEmptyMessageDelayed(FIXTIMEOUT, 20000);
101	}
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	locatorTask.execute();
111	break;
112	case GOTSTATIONLIST:
113	dialog.dismiss();
114	if (locator.getStations().size() == 0)
115	MessageBox.showMessage(TrainInfoList.this,"Error loading station list!");
116	stations = locator.getStations();
117	adapter.setStations( stations );
118	break;
119	case NOPROVIDER:
120	dialog.dismiss();
121	MessageBox.showMessage(TrainInfoList.this,"No location provider enabled. Plase enable gps.");
122	break;
123	case FIXTIMEOUT:
124	dialog.dismiss();
125	if (isRunning) {
126	locator.abortLocationListener();
127	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	}
134	break;
135	case LOOKUPSTATIONFAILED:
136	dialog.dismiss();
137	MessageBox.showMessage(TrainInfoList.this,"Error on finding nearby stations");
138	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	StationBean station = stations.get(position);
152
153
154	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	intent.putExtra("latitude", station.getLatitude());
159	intent.putExtra("longitude", station.getLongitude());
160	startActivity(intent);
161	}
162
163
164	class LocatorTask extends AsyncTask<Void,Void,Void> {
165	@Override
166	protected void onPreExecute() {
167
168	super.onPreExecute();
169	}
170
171	@Override
172	protected Void doInBackground(Void... params) {
173	locator.findNearestStations();
174
175	return null;
176	}
177
178	@Override
179	protected void onPostExecute(Void result) {
180	super.onPostExecute(result);
181
182	}
183	}
184	}