重写controller部分，修改search界面，添加歌词滚动效果，部分资源添加到bundle，修复拖动进度条时产生的噪音

gui/gutil/resize.go

@@ -0,0 +1,56 @@
+package gutil
+
+import (
+	"AynaLivePlayer/model"
+	"bytes"
+	"errors"
+	"fyne.io/fyne/v2"
+	"fyne.io/fyne/v2/canvas"
+	"fyne.io/fyne/v2/storage"
+	"github.com/nfnt/resize"
+	"image"
+	"image/png"
+)
+
+func ResizeImage(resource fyne.Resource, width int, height int) fyne.Resource {
+	data := resource.Content()
+	img, _, err := image.Decode(bytes.NewReader(data))
+	if err != nil {
+		return resource
+	}
+	img = resize.Thumbnail(uint(width), uint(height), img, resize.Lanczos3)
+	buf := bytes.NewBuffer([]byte{})
+	err = png.Encode(buf, img)
+	if err != nil {
+		return resource
+	}
+	return fyne.NewStaticResource(resource.Name(), buf.Bytes())
+}
+
+func NewImageFromPlayerPicture(picture model.Picture) (*canvas.Image, error) {
+	var img *canvas.Image
+	if picture.Data != nil {
+		img = canvas.NewImageFromReader(bytes.NewReader(picture.Data), "cover")
+		// return an error when img is nil
+		if img == nil {
+			return nil, errors.New("fail to read image")
+		}
+
+	} else {
+		uri, err := storage.ParseURI(picture.Url)
+		if err != nil {
+			return nil, err
+		}
+		if uri == nil {
+			return nil, errors.New("fail to fail url")
+		}
+		img = canvas.NewImageFromURI(uri)
+		if img == nil {
+			// bug fix, return a new error to indicate fail to read an image
+			return nil, errors.New("fail to read image")
+		}
+	}
+	// compress image, so it won't be too large
+	img.Resource = ResizeImage(img.Resource, 128, 128)
+	return img, nil
+}