Laya2.3.1，Native2.6.1亲测有效.
Android创建二维码用到zxing库，在app的依赖项(dependencies)里添加: implementation 'com.google.zxing:core:3.3.0'

// ts脚本，点击按钮创建二维码并显示

    private onBtnClickShare() {
        let base64OfQrCode:string = [b]androidplat.createQrCode("https://www.layabox.com/", 180, 180)[/b];
        if (base64OfQrCode.length>0) {
            let img:Laya.Image = new Laya.Image();

img.skin = "data:image/png;base64,"+base64OfQrCode;

            img.pos(100, 300);
            Laya.stage.addChild(img);
        }
    }
 
   // [b]androidplat，[/b]创建二维码
    createQrCode(url:string, width:number, height:number):string {
        return [b]this._bridge.call("createQrCode", url, width, height)[/b];
    }
 
 
// 以下android代码
// JSBridge.java[code]public static String createQrCode(final String content, final double width, final double height) {
    Bitmap bitmap = createQRCodeBitmap(content, (int)width, (int)height, "UTF-8", "H", "1", Color.BLACK, Color.WHITE);
    if (null != bitmap) {
        String base64OfBitmap = bitmapToBase64(bitmap);
        if (null != base64OfBitmap) {
            base64OfBitmap.replace("\n", "");
            return base64OfBitmap;
        }
    }
    return "";

}[/code]

@Nullable
public static Bitmap createQRCodeBitmap(String content, int width, int height,
                                        @Nullable String character_set, @Nullable String error_correction, @Nullable String margin,
                                        @ColorInt int color_black, @ColorInt int color_white){

    /** 1.参数合法性判断 */
    if(TextUtils.isEmpty(content)){ // 字符串内容判空
        return null;
    }

    if(width < 0 || height < 0){ // 宽和高都需要>=0
        return null;
    }

    try {
        /** 2.设置二维码相关配置,生成BitMatrix(位矩阵)对象 */
        Hashtable<EncodeHintType, String> hints = new Hashtable<>();

        if(!TextUtils.isEmpty(character_set)) {
            hints.put(EncodeHintType.CHARACTER_SET, character_set); // 字符转码格式设置
        }

        if(!TextUtils.isEmpty(error_correction)){
            hints.put(EncodeHintType.ERROR_CORRECTION, error_correction); // 容错级别设置
        }

        if(!TextUtils.isEmpty(margin)){
            hints.put(EncodeHintType.MARGIN, margin); // 空白边距设置
        }
        BitMatrix bitMatrix = new QRCodeWriter().encode(content, BarcodeFormat.QR_CODE, width, height, hints);

        /** 3.创建像素数组,并根据BitMatrix(位矩阵)对象为数组元素赋颜色值 */
        int pixels = new int[width * height];
        for(int y = 0; y < height; y++){
            for(int x = 0; x < width; x++){
                if(bitMatrix.get(x, y)){
                    pixels[y * width + x] = color_black; // 黑色色块像素设置
                } else {
                    pixels[y * width + x] = color_white; // 白色色块像素设置
                }
            }
        }

        /** 4.创建Bitmap对象,根据像素数组设置Bitmap每个像素点的颜色值,之后返回Bitmap对象 */
        Bitmap bitmap = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        bitmap.setPixels(pixels, 0, width, 0, 0, width, height);
        return bitmap;
    } catch (WriterException e) {
        e.printStackTrace();
    }

    return null;
}

/**
 * bitmap转为base64
 * @param bitmap
 * @return
 */
public static String bitmapToBase64(Bitmap bitmap) {
    String result = null;
    ByteArrayOutputStream baos = null;
    try {
        if (bitmap != null) {
            baos = new ByteArrayOutputStream();
            bitmap.compress(Bitmap.CompressFormat.JPEG, 100, baos);

            baos.flush();
            baos.close();

            byte bitmapBytes = baos.toByteArray();
            result = Base64.encodeToString(bitmapBytes, Base64.DEFAULT);
        }
    } catch (IOException e) {
        e.printStackTrace();
    } finally {
        try {
            if (baos != null) {
                baos.flush();
                baos.close();
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }
    return result;
}