【发布时间】：2012-12-23 13:23:12
【问题描述】：
我的 android 地图中有我的纬度和经度。但是，当我尝试在当前位置做一个标记/点时，该应用程序在不显示结果的情况下崩溃了。这是我的代码：
public void onLocationChanged(Location loc)
{
GeoPoint point = new GeoPoint(
(int) (loc.getLatitude() * 1E6),
(int) (loc.getLongitude() * 1E6));
String Text = "Latitude = " + loc.getLatitude() + "Longitude = " + loc.getLongitude();
Toast.makeText( getApplicationContext(),Text,Toast.LENGTH_SHORT).show();
mapcontroller.animateTo(point);
mapcontroller.setZoom(16);
MapOverlay mapOverlay = new MapOverlay();
mapOverlay.setPointToDraw(point);
List<Overlay> listOfOverlays = mapView.getOverlays();
listOfOverlays.clear();
listOfOverlays.add(mapOverlay);
}
class MapOverlay extends Overlay
{
private GeoPoint pointToDraw;
public void setPointToDraw(GeoPoint point) {
pointToDraw = point;
}
public GeoPoint getPointToDraw() {
return pointToDraw;
}
public boolean draw(Canvas canvas, MapView mapView, boolean shadow, long when) {
super.draw(canvas, mapView, shadow);
// convert point to pixels
Point screenPts = new Point();
mapView.getProjection().toPixels(pointToDraw, screenPts);
// add marker
Bitmap bmp = BitmapFactory.decodeResource(getResources(), R.drawable.icon);
canvas.drawBitmap(bmp, screenPts.x, screenPts.y - 24, null);
return true;
}
}
我的 Logcat 是：
01-09 19:07:19.209: W/dalvikvm(293): threadid=1: spin on suspend resolved in 1043 msec
01-09 19:07:19.209: D/dalvikvm(293): Restored policy of 310 to 0
01-09 19:07:19.209: D/dalvikvm(293): Restored priority on 310 to 19
01-09 19:07:20.220: W/dalvikvm(293): threadid=1: spin on suspend #1 threadid=7 (pcf=0)
01-09 19:07:20.220: D/dalvikvm(293): Temporarily moving tid 309 to fg (was 0)
01-09 19:07:20.220: D/dalvikvm(293): Temporarily raised priority on tid 309 (19 -> 0)
01-09 19:07:20.259: W/dalvikvm(293): threadid=1: spin on suspend resolved in 1043 msec
01-09 19:07:20.259: D/dalvikvm(293): Restored policy of 309 to 0
01-09 19:07:20.259: D/dalvikvm(293): Restored priority on 309 to 19
01-09 19:07:20.530: D/dalvikvm(293): GC_FOR_MALLOC freed 4877 objects / 301616 bytes in 2364ms
01-09 19:07:21.530: D/dalvikvm(293): GC_FOR_MALLOC freed 10081 objects / 613024 bytes in 329ms
01-09 19:07:22.460: D/dalvikvm(293): GC_FOR_MALLOC freed 4747 objects / 311336 bytes in 248ms
01-09 19:07:23.309: D/dalvikvm(293): GC_FOR_MALLOC freed 6145 objects / 374872 bytes in 233ms
01-09 19:07:24.340: D/dalvikvm(293): GC_FOR_MALLOC freed 8497 objects / 649704 bytes in 259ms
01-09 19:07:25.299: D/dalvikvm(293): GC_FOR_MALLOC freed 6086 objects / 370152 bytes in 293ms
01-09 19:07:25.969: I/MapActivity(293): Handling network change notification:CONNECTED
01-09 19:07:25.969: E/MapActivity(293): Couldn't get connection factory client
01-09 19:07:26.550: D/dalvikvm(293): GC_EXTERNAL_ALLOC freed 3698 objects / 326888 bytes in 303ms
01-09 19:07:26.990: D/dalvikvm(293): GC_FOR_MALLOC freed 270 objects / 112080 bytes in 220ms
01-09 19:07:27.299: D/dalvikvm(293): GC_FOR_MALLOC freed 3495 objects / 240288 bytes in 227ms
01-09 19:07:27.769: D/dalvikvm(293): GC_EXTERNAL_ALLOC freed 185 objects / 136920 bytes in 222ms
如果有任何错误，谁能给我建议。
提前致谢
【问题讨论】：
-
设置默认经纬度。
-
我已经得到了纬度和经度，当它打开时它正在应用程序中烘烤。那么我们真的应该将其设置为默认值吗？
标签： android google-maps