SkiaSharp drawText中文乱码问题

            var fontManager = SKFontManager.Default;
            var emojiTypeface = fontManager.MatchCharacter(‘时‘);

            var textPaint = new SKPaint(){
                Color = Option.TipTextColor.ToSKColor(),
                TextSize = fontSize * fontSizeScale,
                Typeface = emojiTypeface
            };