直播带货小程序源码中，商品详情页是如何获取html图片的

mWebView = findViewById(R.id.web);
mWebView.setOverScrollMode(View.OVER_SCROLL_NEVER);
WebSettings webSettings = mWebView.getSettings();
webSettings.setJavaScriptEnabled(true);//设置能够解析Javascript
webSettings.setDomStorageEnabled(true);//设置适应Html5的一些方法

mWebView.addJavascriptInterface(mOpenImageJavaInterface, "imagelistener");
mWebView.setWebChromeClient(new WebChromeClient(){
    @Override
    public void onProgressChanged(WebView view, int newProgress) {
        super.onProgressChanged(view, newProgress);
        Log.d("===","newProgress=="+newProgress);
        if(newProgress==100){
           addImageClickListener(view);
        }
    }
    private void addImageClickListener(WebView webView) {
        webView.loadUrl("javascript:(function(){" +
                "var objs = document.getElementsByTagName(\"img\"); " +
                "for(var i=0;i<objs.length;i++)  " +
                "{"
                +"  var temp=i;    "
                + "    objs[i].onclick=function()  " +
                "    {  "
                + "        window.imagelistener.openImage(this.src);  " +//通过js代码找到标签为img的代码块，设置点击的监听方法与本地的openImage方法进行连接
                "    }  " +
                "}" +
                "})()");
    }
});

}
/*返回html图片集合*/
public static List<String> returnImageUrlsFromHtml(String htmlCode) {
    List<String> imageSrcList = new ArrayList<String>();
    if(TextUtils.isEmpty(htmlCode)){
        return imageSrcList;
    }
    Pattern p = Pattern.compile("<img\\b[^>]*\\bsrc\\b\\s*=\\s*('|\")?([^'\"\n\r\f>]+(\\.jpg|\\.bmp|\\.eps|\\.gif|\\.mif|\\.miff|\\.png|\\.tif|\\.tiff|\\.svg|\\.wmf|\\.jpe|\\.jpeg|\\.dib|\\.ico|\\.tga|\\.cut|\\.pic|\\b)\\b)[^>]*>", Pattern.CASE_INSENSITIVE);
    Matcher m = p.matcher(htmlCode);
    String quote = null;
    String src = null;
    while (m.find()) {
        quote = m.group(1);
        src = (quote == null || quote.trim().length() == 0) ? m.group(2).split("//s+")[0] : m.group(2);
        imageSrcList.add(src);
    }
    if (imageSrcList == null || imageSrcList.size() == 0) {
        Log.e("imageSrcList","资讯中未匹配到图片链接");
        return null;
    }
    return imageSrcList;
}

@android.webkit.JavascriptInterface
public void openImage(String src) {
    if(!ClickUtil.canClick()||!ListUtil.haveData(mOpenImageJavaInterface.imageUrls)){
        return;
    }
    int index=ListUtil.index(mOpenImageJavaInterface.imageUrls,src);
    if(index==-1){
        index=0;
    }
    showGalleryDialog(index);
}

if(mWebView!=null){
    html = html.replace("<img", "<img style=\"display:        ;max-width:100%;\"");
    mWebView.loadDataWithBaseURL("about：blank", html, mimeType,
            encoding, "");
}