Android百度地图添加Marker失真问题的解决方案

BitmapDescriptor descriptor = BitmapDescriptorFactory.fromResource(R.drawable.icon_geo1);
    LatLng point = new LatLng(latitude, longitude);
    OverlayOptions option = new MarkerOptions().position(point).icon(descriptor);
    baiduMap.addOverlay(option)

Bitmap bitmap = UIUtil.zoomImg(BitmapFactory.decodeResource(getResources(), R.drawable.icon_geo1), 50, 50);
    BitmapDescriptor descriptor = BitmapDescriptorFactory.fromBitmap(bitmap);
    LatLng point = new LatLng(latitude, longitude);
    OverlayOptions option = new MarkerOptions().position(point).icon(descriptor);
    baiduMap.addOverlay(option);

public static Bitmap zoomImg(Bitmap bm, int newWidth, int newHeight) {
    //获得图片的宽高
    int width = bm.getWidth();
    int height = bm.getHeight();
    //计算缩放比例
    float scaleWidth = ((float) newWidth) / width;
    float scaleHeight = ((float) newHeight) / height;
    //取得想要缩放的matrix参数
    Matrix matrix = new Matrix();
    matrix.postScale(scaleWidth, scaleHeight);
    //得到新的图片
    return Bitmap.createBitmap(bm, 0, 0, width, height, matrix, true);
  }