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package dk.thoerup.traininfo; |
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|
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import java.util.ArrayList; |
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import java.util.List; |
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import java.util.Locale; |
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|
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import android.app.AlertDialog; |
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import android.app.Dialog; |
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import android.app.ListActivity; |
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import android.app.ProgressDialog; |
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import android.content.DialogInterface; |
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import android.content.Intent; |
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import android.content.SharedPreferences; |
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import android.content.SharedPreferences.Editor; |
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import android.location.Address; |
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import android.location.Geocoder; |
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import android.location.Location; |
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import android.os.AsyncTask; |
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import android.os.Bundle; |
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import android.os.Handler; |
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import android.os.Message; |
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import android.util.Log; |
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import android.view.ContextMenu; |
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import android.view.LayoutInflater; |
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import android.view.Menu; |
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import android.view.MenuItem; |
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import android.view.View; |
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import android.view.ContextMenu.ContextMenuInfo; |
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import android.view.View.OnCreateContextMenuListener; |
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import android.widget.AdapterView; |
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import android.widget.EditText; |
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import android.widget.ListView; |
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import android.widget.Toast; |
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import dk.thoerup.traininfo.provider.ProviderFactory; |
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import dk.thoerup.traininfo.provider.StationProvider; |
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import dk.thoerup.traininfo.stationmap.GeoPair; |
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import dk.thoerup.traininfo.stationmap.StationMapView; |
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import dk.thoerup.traininfo.util.IntSet; |
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import dk.thoerup.traininfo.util.MessageBox; |
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|
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public class StationList extends ListActivity { |
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public static final int GOTLOCATION = 1001; |
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public static final int GOTSTATIONLIST = 1002; |
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public static final int NOPROVIDER = 1003; |
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public static final int LOCATIONFIXTIMEOUT = 1004; |
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|
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public static final int OPTIONS_MAP = 2003; |
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public static final int OPTIONS_GPSINFO = 2004; |
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|
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|
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|
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|
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public static final int DLG_PROGRESS = 3001; |
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public static final int DLG_STATIONNAME = 3002; |
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|
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static enum LookupMethod { |
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ByLocation, |
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ByName, |
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ByList, |
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MethodNone |
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} |
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|
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|
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String dialogMessage = ""; |
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ProgressDialog dialog; |
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LocationLookup locationLookup = null; |
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FindStationsTask findStationsTask; |
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StationsFetchedHandler stationsFetched = new StationsFetchedHandler(); |
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|
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GeoPair location = new GeoPair(); |
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|
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boolean isRunning = false; |
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List<StationBean> stations = new ArrayList<StationBean>(); |
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|
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StationProvider stationProvider = ProviderFactory.getStationProvider(); |
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|
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StationListAdapter adapter = null; |
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|
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FavoritesMenu contextMenu = new FavoritesMenu(); |
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IntSet favorites = new IntSet(); |
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|
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WelcomeScreen.ListType listType; |
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SharedPreferences prefs; |
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|
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/////////////////////////////////////////////////////////////////////////////////////////// |
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//Activity call backs |
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|
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@SuppressWarnings("unchecked") |
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@Override |
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public void onCreate(Bundle savedInstanceState) { |
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super.onCreate(savedInstanceState); |
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setContentView(R.layout.stationlist); |
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|
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|
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adapter = new StationListAdapter(this); |
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setListAdapter(adapter); |
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|
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ListView lv = getListView(); |
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lv.setOnCreateContextMenuListener(contextMenu); |
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|
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locationLookup = new LocationLookup(this, stationsFetched); |
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|
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|
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prefs = getSharedPreferences("TrainStation", 0); |
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String favoriteString = prefs.getString("favorites", ""); |
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if (! favoriteString.equals("") ) { |
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favorites.fromString(favoriteString); |
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} |
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|
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listType = (WelcomeScreen.ListType) getIntent().getSerializableExtra("type"); |
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setTitle(); |
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|
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if (savedInstanceState == null) { |
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|
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|
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switch (listType) { |
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case ListNearest: |
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startLookup(); |
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break; |
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case ListSearch: |
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this.showDialog(DLG_STATIONNAME); |
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break; |
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case ListFavorites: |
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startFavoriteLookup(); |
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break; |
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default: |
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// Not possible !?! |
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} |
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|
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} else { |
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stations = (ArrayList<StationBean>) savedInstanceState.getSerializable("stations"); |
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adapter.setStations(stations); |
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location = (GeoPair) savedInstanceState.getSerializable("location"); |
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} |
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|
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} |
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protected void setTitle() { |
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String dialogTitle; |
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switch (listType) { |
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case ListNearest: |
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dialogTitle = "Traininfo DK - Nearby stations"; |
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break; |
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case ListSearch: |
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dialogTitle = "Traininfo DK - Search"; |
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break; |
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case ListFavorites: |
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dialogTitle = "Traininfo DK - Favorites"; |
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break; |
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default: |
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dialogTitle = "";//not possible |
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} |
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|
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setTitle(dialogTitle); |
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} |
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|
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|
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|
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|
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@Override |
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public void onSaveInstanceState(Bundle outState) |
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{ |
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if (dialog != null && dialog.isShowing()) |
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dialog.dismiss(); |
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outState.putSerializable("stations", (ArrayList<StationBean>) stations); |
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outState.putSerializable("location", location); |
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|
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} |
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|
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|
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|
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@Override |
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public boolean onCreateOptionsMenu(Menu menu) { |
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MenuItem item; |
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|
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item = menu.add(0, OPTIONS_MAP, 0, "Station map"); |
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item.setIcon(android.R.drawable.ic_menu_mapmode); |
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|
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item = menu.add(0, OPTIONS_GPSINFO, 0, "GPS Info"); |
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item.setIcon(android.R.drawable.ic_menu_mapmode); |
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|
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return true; |
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} |
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|
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@Override |
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public boolean onOptionsItemSelected(MenuItem item) { |
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boolean retval = true; |
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|
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//TODO: Cleanup |
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switch (item.getItemId()) { |
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case OPTIONS_MAP: |
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|
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Intent intent = new Intent(this,StationMapView.class); |
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intent.putExtra("userlocation", location ); |
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|
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ArrayList<GeoPair> stationPoints = new ArrayList<GeoPair>(); |
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for (StationBean st : stations ) { |
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stationPoints.add( new GeoPair(st.getLatitude(), st.getLongitude(), st.getName()) ); |
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} |
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|
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intent.putExtra("stations", stationPoints); |
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|
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startActivity(intent); |
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break; |
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case OPTIONS_GPSINFO: |
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Location loc = locationLookup.getLocation(); |
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StringBuffer message = new StringBuffer(); |
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message.append("Location info:\n"); |
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message.append("-Obtained by: ").append(loc != null ? loc.getProvider() : "-").append("\n"); |
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message.append("-Accuracy: ").append(loc != null ? (int)loc.getAccuracy() : "-").append("m\n"); |
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|
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MessageBox.showMessage(this, message.toString()); |
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break; |
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default: |
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retval = super.onOptionsItemSelected(item); |
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} |
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|
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return retval; |
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} |
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|
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|
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|
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@Override |
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public boolean onContextItemSelected(MenuItem item) { |
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contextMenu.onContextItemSelected(item); |
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return true; |
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|
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|
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} |
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|
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|
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|
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|
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@Override |
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protected Dialog onCreateDialog(int id) { |
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switch (id) { |
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case DLG_PROGRESS: |
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ProgressDialog dlg = new ProgressDialog(this); |
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dlg.setMessage("Wait for location fix"); |
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dlg.setCancelable(false); |
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return dlg; |
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case DLG_STATIONNAME: |
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LayoutInflater factory = LayoutInflater.from(this); |
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final View rootView = factory.inflate(R.layout.textinput, null); |
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|
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|
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AlertDialog.Builder builder = new AlertDialog.Builder(this); |
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|
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builder.setTitle("Station search"); |
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builder.setView(rootView); |
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builder.setCancelable(true); |
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builder.setPositiveButton("Search", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int which) { |
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EditText et = (EditText) rootView.findViewById(R.id.EditText); |
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dialog.dismiss(); |
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if (et.getText().toString().length() >= 2) { |
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startNameSearch(et.getText().toString()); |
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} else { |
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MessageBox.showMessage(StationList.this, "Two characters minimum" ); |
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} |
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} |
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}); |
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builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int which) { |
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dialog.dismiss(); |
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} |
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}); |
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return builder.create(); |
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|
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default: |
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return super.onCreateDialog(id); |
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} |
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|
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} |
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|
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|
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@Override |
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protected void onPrepareDialog(int id, Dialog dialog) { |
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super.onPrepareDialog(id, dialog); |
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switch (id) { |
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case DLG_PROGRESS: |
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this.dialog = (ProgressDialog) dialog; |
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if (!dialogMessage.equals("")) { |
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this.dialog.setMessage(dialogMessage); |
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dialogMessage = ""; |
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} |
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break; |
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} |
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} |
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|
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@Override |
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protected void onListItemClick(ListView l, View v, int position, long id) { |
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super.onListItemClick(l, v, position, id); |
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|
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StationBean station = stations.get(position); |
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|
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double latitude = station.getLatitude(); |
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double longitude = station.getLongitude(); |
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|
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|
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|
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Intent intent = new Intent(this, DepartureList.class); |
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intent.putExtra("name", station.getName()); |
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intent.putExtra("distance", station.getDistance()); |
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intent.putExtra("latitude", latitude); |
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intent.putExtra("longitude", longitude); |
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intent.putExtra("stationid", station.getId()); |
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intent.putExtra("address", station.getAddress()); |
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startActivity(intent); |
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} |
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|
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///////////////////////////////////////////////////////////// |
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// |
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|
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public void startLookup() { |
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isRunning = true; |
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dialogMessage = "Wait for location fix"; |
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showDialog(DLG_PROGRESS); |
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|
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locationLookup.locateStations(); |
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stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000); |
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} |
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|
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void startNameSearch(String name) { |
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dialogMessage = "Finding stations by name"; |
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showDialog(DLG_PROGRESS); |
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|
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findStationsTask = new FindStationsTask(); |
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findStationsTask.searchByName(name, locationLookup.getLocation()); |
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findStationsTask.execute(); |
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|
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} |
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|
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public void startFavoriteLookup() { |
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|
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if (favorites.size() > 0) { |
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dialogMessage = "Loading favorites"; |
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showDialog(DLG_PROGRESS); |
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|
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findStationsTask = new FindStationsTask(); |
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findStationsTask.searchByIds(favorites.toString(), locationLookup.getLocation()); |
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findStationsTask.execute(); |
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} else { |
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MessageBox.showMessage(this, "Favorite list is empty"); |
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} |
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} |
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|
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|
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|
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void startLocatorTask() |
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{ |
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dialogMessage = "Finding nearby stations"; |
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showDialog(DLG_PROGRESS); |
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|
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findStationsTask = new FindStationsTask(); |
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findStationsTask.searchByLocation( locationLookup.getLocation() ); |
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findStationsTask.execute(); |
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} |
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|
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|
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String lookupAddress(double latitude, double longitude) { |
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|
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Geocoder coder = new Geocoder(this, new Locale("da")); |
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StringBuilder sb = new StringBuilder(); |
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Log.i("lookupaddr", "" + latitude + "/" + longitude); |
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try { |
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List<Address> addressList = coder.getFromLocation(latitude, longitude, 1); |
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Address addr = addressList.get(0); |
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|
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|
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int max = addr.getMaxAddressLineIndex(); |
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for (int i=0; i<max; i++) { |
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if (i>0) |
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sb.append(", "); |
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|
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sb.append(addr.getAddressLine(i)); |
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} |
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|
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|
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} catch (Exception e) { |
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Log.e("DepartureList", "geocoder failed", e); |
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} |
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|
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return sb.toString(); |
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} |
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|
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|
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//////////////////////////////////////////////////////////////////////////// |
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// Inner classes |
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|
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class StationsFetchedHandler extends Handler { |
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@Override |
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public void handleMessage(Message msg) { |
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|
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switch (msg.what) { |
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case GOTLOCATION: |
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dismissDialog(DLG_PROGRESS); |
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|
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startLocatorTask(); |
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location = GeoPair.fromLocation( locationLookup.getLocation() ); |
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|
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break; |
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|
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case NOPROVIDER: |
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dismissDialog(DLG_PROGRESS); |
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MessageBox.showMessage(StationList.this,"No location provider enabled. Plase enable gps."); |
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break; |
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case LOCATIONFIXTIMEOUT: |
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if (isRunning) { |
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locationLookup.stopSearch(); |
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if (locationLookup.hasLocation()) { |
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stationsFetched.sendEmptyMessage( GOTLOCATION ); |
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} else { |
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dismissDialog(DLG_PROGRESS); |
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|
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AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this); |
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builder.setMessage("Location fix timed out"); |
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builder.setCancelable(true); |
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builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int id) { |
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dialog.dismiss(); |
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startLookup(); |
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|
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} |
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}); |
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builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { |
426 |
public void onClick(DialogInterface dialog, int id) { |
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dialog.dismiss(); |
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} |
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}); |
430 |
builder.show(); |
431 |
|
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} |
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} |
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break; |
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} |
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isRunning = false; |
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} |
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}; |
439 |
|
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|
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class FindStationsTask extends AsyncTask<Void,Void,Void> { |
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|
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LookupMethod method = LookupMethod.MethodNone; |
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boolean success; |
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String name; |
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Location loc; |
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String ids; |
448 |
|
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public void searchByName(String n, Location l) { |
450 |
|
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method = LookupMethod.ByName; |
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loc = l; |
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name = n; |
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} |
455 |
|
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public void searchByLocation(Location l) { |
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method = LookupMethod.ByLocation; |
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loc = l; |
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} |
460 |
|
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public void searchByIds(String id, Location l) { |
462 |
|
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method = LookupMethod.ByList; |
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loc = l; |
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ids = id; |
466 |
} |
467 |
|
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@Override |
469 |
protected void onPreExecute() { |
470 |
|
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if (method.equals(LookupMethod.MethodNone)) |
472 |
throw new RuntimeException("Method not set"); |
473 |
super.onPreExecute(); |
474 |
} |
475 |
|
476 |
@Override |
477 |
protected Void doInBackground(Void... params) { |
478 |
|
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switch (method) { |
480 |
case ByLocation: |
481 |
success = stationProvider.lookupStations(loc); |
482 |
break; |
483 |
case ByName: |
484 |
success = stationProvider.lookupStationsByName(name); |
485 |
break; |
486 |
case ByList: |
487 |
success = stationProvider.lookupStationsByIds(ids); |
488 |
break; |
489 |
default: |
490 |
success = false; // not possible |
491 |
} |
492 |
|
493 |
|
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Location dummy = new Location("gps"); |
495 |
List<StationBean> stations = stationProvider.getStations(); |
496 |
|
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for (StationBean station : stations) { |
498 |
String addr = lookupAddress(station.getLatitude(), station.getLongitude()); |
499 |
station.setAddress(addr); |
500 |
|
501 |
|
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if (method.equals(LookupMethod.ByName) || method.equals(LookupMethod.ByList)) { |
503 |
if (loc != null) { //only do the distance calc if we have a location |
504 |
dummy.setLatitude(station.getLatitude()); |
505 |
dummy.setLongitude(station.getLongitude()); |
506 |
station.setDistance( (int)loc.distanceTo(dummy) ); |
507 |
} else { |
508 |
station.setDistance(0); |
509 |
} |
510 |
} |
511 |
|
512 |
} |
513 |
|
514 |
return null; |
515 |
} |
516 |
|
517 |
@Override |
518 |
protected void onPostExecute(Void result) { |
519 |
super.onPostExecute(result); |
520 |
dialog.dismiss(); |
521 |
|
522 |
|
523 |
if (success) { |
524 |
if (stationProvider.getStations().size() == 0) |
525 |
MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?! |
526 |
stations = stationProvider.getStations(); |
527 |
adapter.setStations( stations ); |
528 |
|
529 |
} else { //communication or parse errors |
530 |
AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this); |
531 |
builder.setMessage("Error on finding nearby stations"); |
532 |
builder.setCancelable(true); |
533 |
builder.setPositiveButton("Retry", new DialogInterface.OnClickListener() { |
534 |
public void onClick(DialogInterface dialog, int id) { |
535 |
dialog.dismiss(); |
536 |
|
537 |
stationsFetched.post( new Runnable() { |
538 |
@Override |
539 |
public void run() { |
540 |
startLocatorTask(); |
541 |
} |
542 |
}); |
543 |
} |
544 |
}); |
545 |
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { |
546 |
public void onClick(DialogInterface dialog, int id) { |
547 |
dialog.dismiss(); |
548 |
} |
549 |
}); |
550 |
builder.show(); |
551 |
} |
552 |
} |
553 |
} |
554 |
|
555 |
|
556 |
class FavoritesMenu implements OnCreateContextMenuListener { |
557 |
private final static int FAVORITES_ADD = 9001; |
558 |
private final static int FAVORITES_REMOVE = 9002; |
559 |
|
560 |
private int selectedPosition; |
561 |
|
562 |
|
563 |
@Override |
564 |
public void onCreateContextMenu(ContextMenu menu, View v, ContextMenuInfo menuInfo) { |
565 |
|
566 |
AdapterView.AdapterContextMenuInfo info = (AdapterView.AdapterContextMenuInfo) menuInfo; |
567 |
selectedPosition = info.position; |
568 |
int stationID = stations.get(selectedPosition).getId(); |
569 |
|
570 |
if (!favorites.contains(stationID)) { |
571 |
menu.add(0, FAVORITES_ADD, 0, "Add to favorites"); |
572 |
} else { |
573 |
menu.add(0, FAVORITES_REMOVE, 0, "Remove from favorites"); |
574 |
} |
575 |
|
576 |
} |
577 |
|
578 |
public void onContextItemSelected(MenuItem item) { |
579 |
StationBean sb = stations.get(selectedPosition); |
580 |
|
581 |
int stationID = sb.getId(); |
582 |
if (item.getItemId() == FAVORITES_ADD) { |
583 |
favorites.add(stationID); |
584 |
Toast.makeText(StationList.this, "Station added", Toast.LENGTH_SHORT).show(); |
585 |
} else { |
586 |
|
587 |
favorites.remove(stationID); |
588 |
Toast.makeText(StationList.this, "Station removed", Toast.LENGTH_SHORT).show(); |
589 |
|
590 |
|
591 |
if (listType.equals( WelcomeScreen.ListType.ListFavorites) ) { |
592 |
stations.remove(selectedPosition); |
593 |
adapter.notifyDataSetChanged(); |
594 |
} |
595 |
} |
596 |
Editor ed = prefs.edit(); |
597 |
ed.putString("favorites", favorites.toString()); |
598 |
ed.commit(); |
599 |
} |
600 |
} |
601 |
} |