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package dk.thoerup.traininfo; |
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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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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.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.Menu; |
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import android.view.MenuItem; |
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import android.view.View; |
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import android.widget.ListView; |
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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.MessageBox; |
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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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public static final int OPTIONS_MAP = 2001; |
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public static final int OPTIONS_ABOUT = 2002; |
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public static final int DLG_PROGRESS = 1001; |
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/** Called when the activity is first created. */ |
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String dialogMessage = ""; |
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ProgressDialog dialog; |
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LocationLookup locator = null; |
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LocatorTask locatorTask; |
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|
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GeoPair location = new GeoPair(); |
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boolean isRunning = false; |
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List<StationBean> stations = new ArrayList<StationBean>(); |
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StationProvider stationProvider = ProviderFactory.getStationProvider(); |
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StationListAdapter adapter = null; |
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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.main); |
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adapter = new StationListAdapter(this); |
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setListAdapter(adapter); |
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locator = new LocationLookup(this, stationsFetched); |
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if (savedInstanceState == null) { |
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startLookup(); |
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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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@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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@Override |
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public boolean onCreateOptionsMenu(Menu menu) { |
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menu.add(0, OPTIONS_MAP, 0, "Show station map"); |
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menu.add(0, OPTIONS_ABOUT, 0, "About"); |
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return true; |
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} |
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@Override |
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public boolean onOptionsItemSelected(MenuItem item) { |
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boolean retval; |
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switch (item.getItemId()) { |
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case OPTIONS_MAP: |
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Intent intent = new Intent(this,StationMapView.class); |
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intent.putExtra("userlocation", location ); |
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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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intent.putExtra("stations", stationPoints); |
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startActivity(intent); |
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retval = true; |
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break; |
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case OPTIONS_ABOUT: |
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String ver = this.getResources().getString(R.string.app_version); |
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|
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StringBuffer message = new StringBuffer(); |
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message.append("TrainInfo DK v").append(ver).append("\n"); |
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message.append("By Torben Nielsen\n"); |
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MessageBox.showMessage(this, message.toString()); |
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retval = true; |
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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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return retval; |
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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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default: |
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return super.onCreateDialog(id); |
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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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public void startLookup() { |
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isRunning = true; |
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showDialog(DLG_PROGRESS); |
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locator.locateStations(); |
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stationsFetched.sendEmptyMessageDelayed(LOCATIONFIXTIMEOUT, 20000); |
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} |
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Handler stationsFetched = new Handler() { |
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@Override |
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public void handleMessage(Message msg) { |
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switch (msg.what) { |
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case GOTLOCATION: |
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dismissDialog(DLG_PROGRESS); |
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startLocatorTask(); |
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location = GeoPair.fromLocation( locator.getLocation() ); |
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break; |
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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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locator.stopSearch(); |
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if (locator.hasLocation()) { |
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stationsFetched.sendEmptyMessage( GOTLOCATION ); |
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} else { |
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dismissDialog(DLG_PROGRESS); |
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AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this); |
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builder.setMessage("GPS 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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builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() { |
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public void onClick(DialogInterface dialog, int id) { |
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dialog.dismiss(); |
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} |
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}); |
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builder.show(); |
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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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}; |
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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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locatorTask = new LocatorTask(); |
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locatorTask.execute(); |
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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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StationBean station = stations.get(position); |
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double latitude = station.getLatitude(); |
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double longitude = station.getLongitude(); |
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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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String lookupAddress(double latitude, double longitude) { |
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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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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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sb.append(addr.getAddressLine(i)); |
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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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return sb.toString(); |
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} |
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class LocatorTask extends AsyncTask<Void,Void,Void> { |
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boolean success; |
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@Override |
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protected void onPreExecute() { |
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super.onPreExecute(); |
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} |
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@Override |
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protected Void doInBackground(Void... params) { |
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Location loc = locator.getLocation(); |
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success = stationProvider.lookupStations(loc); |
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List<StationBean> stations = stationProvider.getStations(); |
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for (StationBean station : stations) { |
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String addr = lookupAddress(station.getLatitude(), station.getLongitude()); |
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station.setAddress(addr); |
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} |
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return null; |
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} |
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@Override |
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protected void onPostExecute(Void result) { |
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super.onPostExecute(result); |
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dialog.dismiss(); |
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if (success) { |
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if (stationProvider.getStations().size() == 0) |
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MessageBox.showMessage(StationList.this, "No stations found!"); // this should not be possible !?! |
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stations = stationProvider.getStations(); |
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adapter.setStations( stations ); |
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} else { //communication or parse errors |
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AlertDialog.Builder builder = new AlertDialog.Builder(StationList.this); |
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builder.setMessage("Error on finding nearby stations"); |
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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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stationsFetched.post( new Runnable() { |
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@Override |
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public void run() { |
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startLocatorTask(); |
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} |
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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 id) { |
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dialog.dismiss(); |
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} |
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}); |
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builder.show(); |
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} |
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} |
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} |
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} |