Android中SVG转Bitmap的问题

最近在使用bitmap时发现，如果加载svg的图片转换bitmap会报异常，因为svg矢量图没办法直接转换成bitmap，需要使用下面的方法转换一下即可。

   private Bitmap getBitmapFromDrawable(@DrawableRes int drawableId) {
        Drawable drawable = ContextCompat.getDrawable(getContext(), drawableId);
        if (drawable instanceof BitmapDrawable) {
            return ((BitmapDrawable) drawable).getBitmap();
        } else if (drawable instanceof VectorDrawable || drawable instanceof VectorDrawableCompat) {
            Bitmap bitmap = Bitmap.createBitmap(drawable.getIntrinsicWidth(), drawable.getIntrinsicHeight(), Bitmap.Config.ARGB_8888);
            Canvas canvas = new Canvas(bitmap);
            drawable.setBounds(0, 0, canvas.getWidth(), canvas.getHeight());
            drawable.draw(canvas);
            return bitmap;
        } else {
            throw new IllegalArgumentException("unsupported drawable type");
        }
    }