Kreis in Mapview zeichnen

1package com.nemo.tester.teile;
2
3import android.content.Intent;
4import android.graphics.Canvas;
5import android.graphics.Paint;
6import android.graphics.Point;
7import android.graphics.Paint.Style;
8import android.graphics.RectF;
9import android.location.Location;
10import android.os.Bundle;
11import android.view.View;
12import android.view.View.OnClickListener;
13import android.widget.Button;
14import android.widget.LinearLayout;
15
16import com.google.android.maps.GeoPoint;
17import com.google.android.maps.MapActivity;
18import com.google.android.maps.MapController;
19import com.google.android.maps.MapView;
20import com.google.android.maps.MyLocationOverlay;
21import com.google.android.maps.Overlay;
22import com.google.android.maps.Projection;
23import com.google.android.maps.OverlayItem;
24
25public class TesterUntenFuenf extends MapActivity {
26
27 LinearLayout linearLayout;
28
29 private MapView mMapView;
30 private MapController mMapController;
31 private MyLocationOverlay mMyLocationOverlay;
32 private CircleOverlay mMapViewOverlay;
33
34
35 @Override
36 public void onCreate(Bundle icicle)
37 {
38 // Layout (Schriften, Buttons definieren)
39 super.onCreate(icicle);
40 setContentView(R.layout.testeruntenfuenf);
41
42 Button APNextMap2 = (Button) findViewById(R.id.APNextButtonTesterEinzeichnen_5);
43
44
45 initMapView();
46
47
48 mMapViewOverlay = new CircleOverlay();
49 mMapView.getOverlays().add(mMapViewOverlay);
50 mMapView.postInvalidate();
51
52
53
54
55 // Button Next
56 APNextMap2.setOnClickListener(new OnClickListener(){
57
58 public void onClick(View v){
59 Intent explicitIntent = new Intent(TesterUntenFuenf.this, null);
60 startActivity(explicitIntent);
61 }
62
63 });
64
65
66 }
67
68
69
70 @Override
71 protected boolean isRouteDisplayed() {
72 return false;
73 }
74
75 private void initMapView() {
76 mMapView = (MapView) findViewById(R.id.mapview_testerplus5);
77 mMapController = mMapView.getController();
78 final int maxZoomlevel = mMapView.getMaxZoomLevel ();
79 mMapController.setZoom(maxZoomlevel - 4); // zoom
80 mMapView.setBuiltInZoomControls(true);
81 // mMapView.setSatellite(true); // Satellitenbild
82 mMapView .setStreetView(true); // Strassenansicht
83 }
84
85
86
87 public class CircleOverlay extends Overlay {
88
89
90 final private Point mMeinPunkt = new Point () ;
91
92 final RectF mRect = new RectF();
93 final private Paint mPaint = new Paint();
94
95
96 @Override
97 public void draw(Canvas canvas, MapView mapView,boolean shadow) {
98
99 super.draw(canvas, mapView, shadow);
100 double dest_lat = 48.765083, dest_lon = 11.424694;
101 double start_lat = 48.365647, start_lon = 10.889969;
102 GeoPoint geo = new GeoPoint((int) (dest_lat *1e6), (int)(dest_lon * 1e6));
103
104
105 mapView.getProjection().toPixels(geo,mMeinPunkt);
106
107 float circleRadius = 20;
108
109 mRect.set(mMeinPunkt.x - 20, mMeinPunkt.y + 20,mMeinPunkt.x + 20, mMeinPunkt.y - 20);
110 mPaint.setARGB(255, 255, 255, 255);
111 mPaint.setAntiAlias(true);
112 mPaint.setStyle(Style.FILL);
113 canvas.drawOval (mRect, mPaint) ;
114
115 mPaint.setARGB(255, 0, 0, 0);
116 mPaint.setStyle(Style.STROKE);
117
118 canvas.drawCircle(mMeinPunkt.x, mMeinPunkt.y, circleRadius,mPaint);
119
120
121 }}
122
123
124
125 }