public void convertBetteryBitmap()
{
batteryView = (ProgressBar)LayoutInflater.From(mContext).Inflate(Resource.Layout.layout_battery_progress, null);
batteryView.ProgressDrawable = (ContextCompat.GetDrawable(mContext,
Settings.ReadTheme < 4 ?
Resource.Drawable.seekbar_battery_bg : Resource.Drawable.seekbar_battery_night_bg));
batteryView.Progress = (battery);
batteryView.DrawingCacheEnabled = (true);
batteryView.Measure(View.MeasureSpec.MakeMeasureSpec(ScreenUtils.dpToPxInt(26), MeasureSpecMode.Exactly),
View.MeasureSpec.MakeMeasureSpec(ScreenUtils.dpToPxInt(14), MeasureSpecMode.Exactly));
batteryView.Layout(0, 0, batteryView.MeasuredWidth, batteryView.MeasuredHeight);
batteryView.BuildDrawingCache();
//batteryBitmap = batteryView.getDrawingCache();
// tips: @link{https://github.com/JustWayward/BookReader/issues/109}
batteryBitmap = Bitmap.CreateBitmap(batteryView.DrawingCache);
batteryView.DrawingCacheEnabled = (false);
batteryView.DestroyDrawingCache();
}