添加500多个标记会使应用程序挂起。

    Cursor places = db.getAllPlaces();
    this.placeMarker0 = new ItemizedMarker(this.getResources().getDrawable(
            R.drawable.place0), this);
    this.placeMarker1 = new ItemizedMarker(this.getResources().getDrawable(
            R.drawable.place1), this);
    this.shopMarker = new ItemizedMarker(this.getResources().getDrawable(
            R.drawable.shop), this);
    if (places.moveToFirst()) {
        do {
            String[] coordinates = places.getString(11).split(\",\");
            if (coordinates.length > 0) {
                GeoPoint point = new GeoPoint((int) (Double
                        .parseDouble(coordinates[0]) * 1E6), (int) (Double
                        .parseDouble(coordinates[1]) * 1E6));
                OverlayItem overlayitem = new OverlayItem(point, places
                        .getString(1), Integer.toString(places.getInt(0)));
                if (places.getInt(12) == 0) {
                    placeMarker0.addMarker(overlayitem);
                } else if (places.getInt(12) == 1) {
                    placeMarker1.addMarker(overlayitem);
                } else {
                    shopMarker.addMarker(overlayitem);
                }
            } else {
                Log.w(\"GMaps\", \"Place not located - \" + places.getString(1));
            }
        } while (places.moveToNext());
        this.placeMarker0.populateNow();
        this.mapOverlays.add(placeMarker0);
        this.placeMarker1.populateNow();
        this.mapOverlays.add(placeMarker1);
        this.shopMarker.populateNow();
    }