webView.getSettings().setJavaScriptEnabled(true);
webView.getSettings().setCacheMode(WebSettings.LOAD_NO_CACHE);// 不使用快取
webView.getSettings().setUserAgentString(System.getProperty("http.agent"));
webView.getSettings().setLayoutAlgorithm(WebSettings.LayoutAlgorithm.SINGLE_COLUMN);//把html中的內容放大webview等寬的一列中
 
webView.getSettings().setAppCacheEnabled(true);
webView.getSettings().setDomStorageEnabled(true);
webView.setWebViewClient(new MyWebViewClient());
webView.loadData(productDiscribeInfo, "text/html", "UTF-8");

private class MyWebViewClient extends WebViewClient {

    @Override
public void onPageFinished
 
(WebView view, String url) {
        super.onPageFinished(view, url);
imgReset();//重置webview中img標籤的圖片大小
}

    @Override
public boolean shouldOverrideUrlLoading(WebView view, String url) {
        view.loadUrl(url);
        return true;
}
}

/**
 * 對圖片進行重置大小，寬度就是手機螢幕寬度，高度根據寬度比便自動縮放
 **/
private void imgReset
 
() {
    webView.loadUrl("javascript:(function(){" +
            "var objs = document.getElementsByTagName('img'); " +
            "for(var i=0;i<objs.length;i++)  " +
            "{"
+ "var img = objs[i];   " +
            "    img.style.maxWidth = '100%'; img.style.height = 'auto';  " +
            "}" +
            "})()");
}