Adresse auf Korrektheit prüfen ?

1package com.restaurant;
2
3import java.io.IOException;
4import java.util.List;
5import java.util.Locale;
6
7import android.content.Intent;
8import android.graphics.Bitmap;
9import android.graphics.BitmapFactory;
10import android.graphics.Canvas;
11import android.graphics.Point;
12import android.location.Address;
13import android.location.Geocoder;
14import android.location.Location;
15import android.location.LocationManager;
16import android.net.Uri;
17import android.os.Bundle;
18import android.provider.Settings;
19import android.view.View;
20import android.view.View.OnClickListener;
21import android.widget.ImageButton;
22import android.widget.Toast;
23
24import com.google.android.maps.GeoPoint;
25import com.google.android.maps.MapActivity;
26import com.google.android.maps.MapController;
27import com.google.android.maps.MapView;
28import com.google.android.maps.MyLocationOverlay;
29import com.google.android.maps.Overlay;
30
31public class MyMapView extends MapActivity {
32
33 private MapView mMapView;
34 private MapController mMapController;
35 private LocationManager mLocationManager;
36 private Geocoder mGeocoder;
37 private String intent_addresse;
38 private MyLocationOverlay mOverlay;
39 private ImageButton img_bt_navigation;
40 private ImageButton img_bt_close;
41 private ImageButton img_bt_own;
42 private GeoPoint destination;
43
44 @Override
45 protected void onCreate(Bundle icicle) {
46 super.onCreate(icicle);
47 setContentView(R.layout.mymapview);
48
49 initButtons(); // Initialisiere Buttons
50 initMapView(); // Initialisiere MapView
51
52 intent_addresse = getIntent().getStringExtra("adresse"); // intent von
53
54 mLocationManager = (LocationManager) getSystemService(LOCATION_SERVICE);
55
56 setGPSon();
57
58 mGeocoder = new Geocoder(this, Locale.getDefault());
59
60 try {
61 List<Address> addresses = mGeocoder.getFromLocationName(
62 intent_addresse, 5);
63 if (addresses.size() > 0) {
64 destination = new GeoPoint((int) (addresses.get(0)
65 .getLatitude() * 1E6), (int) (addresses.get(0)
66 .getLongitude() * 1E6));
67
68 mMapController.animateTo(destination);
69 mMapView.invalidate();
70 }
71 } catch (IOException e) {
72 e.printStackTrace();
73 }
74
75 MapOverlay myMapOverlay = new MapOverlay();
76 List<Overlay> listOfOverlays = mMapView.getOverlays();
77 listOfOverlays.clear();
78 listOfOverlays.add(myMapOverlay);
79 }
80
81 private void initButtons() {
82 img_bt_navigation = (ImageButton) findViewById(R.id.img_bt_navigation);
83 img_bt_navigation.setOnClickListener(listener);
84
85 img_bt_own = (ImageButton) findViewById(R.id.img_bt_own);
86 img_bt_own.setOnClickListener(listener);
87
88 img_bt_close = (ImageButton) findViewById(R.id.img_bt_close);
89 img_bt_close.setOnClickListener(listener);
90 }
91
92 private OnClickListener listener = new OnClickListener() {
93 public void onClick(View v) {
94 switch (v.getId()) {
95 case R.id.img_bt_navigation:
96 String uri_navigation = "google.navigation:q="
97 + intent_addresse;
98 Intent intent_navigation = new Intent(Intent.ACTION_VIEW,
99 Uri.parse(uri_navigation));
100 startActivity(intent_navigation);
101 break;
102
103 case R.id.img_bt_own:
104 mMapController.animateTo(mOverlay.getMyLocation());
105 break;
106 case R.id.img_bt_close:
107 finish();
108 break;
109 }
110 }
111 };
112
113 @Override
114 protected void onPause() {
115 mOverlay.disableMyLocation();
116 mMapView.getOverlays().remove(mOverlay);
117 mLocationManager.removeUpdates(mOverlay);
118 super.onPause();
119 }
120
121 @Override
122 protected void onResume() {
123 super.onResume();
124
125 setGPSon();
126
127 mLocationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,
128 5000L, 500.0f, mOverlay);
129
130 mMapView.getOverlays().add(mOverlay);
131 mOverlay.enableMyLocation();
132
133 mOverlay.runOnFirstFix(new Runnable() {
134
135 public void run() {
136 mOverlay.getMyLocation();
137 }
138 });
139 }
140
141 private void setGPSon() {
142 if (!mLocationManager
143 .isProviderEnabled(android.location.LocationManager.GPS_PROVIDER)) {
144
145 Toast.makeText(this, "GPS ist deaktiviert, Bitte aktivieren !",
146 Toast.LENGTH_LONG).show();
147 Intent myIntent = new Intent(
148 Settings.ACTION_LOCATION_SOURCE_SETTINGS);
149 startActivity(myIntent);
150 }
151 }
152
153 private void initMapView() {
154 mMapView = (MapView) findViewById(R.id.mapview);
155 mOverlay = new MyLocationOverlay(this, mMapView) {
156
157 @Override
158 public synchronized void onLocationChanged(Location location) {
159 super.onLocationChanged(location);
160 }
161 };
162 mMapController = mMapView.getController();
163
164 final int maxZoomlevel = mMapView.getMaxZoomLevel();
165 mMapController.setZoom(maxZoomlevel - 2);
166 // mMapView.setBuiltInZoomControls(true);
167 }
168
169 @Override
170 protected boolean isRouteDisplayed() {
171 return false;
172 }
173
174 class MapOverlay extends com.google.android.maps.Overlay {
175 @Override
176 public boolean draw(Canvas canvas, MapView mapView, boolean shadow,
177 long when) {
178 super.draw(canvas, mapView, shadow);
179
180 Point screenPts = new Point();
181 mapView.getProjection().toPixels(destination, screenPts);
182
183 Bitmap bmp = BitmapFactory.decodeResource(getResources(),
184 R.drawable.restaurant_icon);
185 canvas.drawBitmap(bmp, screenPts.x - 34, screenPts.y - 34, null);
186 return true;
187 }
188 }
189}