我加载静态地图时显示模糊的地图

Question

当我使用URL加载静态地图时，地图正在显示但是它太模糊了....请给解决方案的朋友...提前感谢.......... 这是我的代码......

    public class UpdateMap extends AsyncTask<String, String, String> {
        @Override
        protected String doInBackground(String... value) {

            Double latter = Double.parseDouble(value[0]);
            Double longer = Double.parseDouble(value[1]);
            String address = value[2];

            try {

                String mapurl = "http://maps.google.com/maps/api/staticmap?center="
                        + latter
                        + ","
                        + longer

                        + "&zoom=15&size=100x100&sensor=true&markersize=55&markers=color:red%7Clabel:%7C"
                        + latter + "," + longer;

                double lat1 = Double.valueOf(latter);

                double longt1 = Double.valueOf(longer);

                Bitmap mapimage = BitmapConvert.bitmaptobitmap(application
                        .getGoogleMapThumbnail(lat1, longt1, mapurl));

                Bitmap crop = crop(mapimage);

                String mapimagestring = BitmapConvert.bitmaptostring(crop);

                chatHistoryDB.updatemapimage(latter + "/" + longer + "/"
                        + address, mapimagestring);

                chatAdapter.doubletick();
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }

    }