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上次总结了一下WebView更改字体大小的帖子,这次在加点料,索性把webView的字体颜色和背景颜色都设置一下。 现在的App大多数支持日夜间模式的切换,对于新闻阅读类的App,更改WebView的日夜间模式,显得尤为重要。更改字体颜色,主要的思想是在WebView加载的Data的外面,加载了一个模板,然后根据用户日夜间模式切换的点击事件,更改WebView的字体颜色。其实这里例子懂了之后,以后对于WebView的界面处理,就简单很多。都是加载模板,更改里面的内容。有的服务器返回的data格式,在手机上显得很格格不入,那样的话就需要,在处理后的data上,再加一个正则表达式的过滤了,详细需要过滤的,还得根据不同情况,查询不同的过滤规则。言归正传,先说说这个更改字体颜色的核心代码。
- private String initContent(String content, boolean night, boolean flag) {
- try {
- InputStream inputStream = getResources().getAssets().open(
- "discover.html");
- BufferedReader reader = new BufferedReader(new InputStreamReader(
- inputStream), 16 * 1024);
- StringBuilder sBuilder = new StringBuilder();
- String line = null;
- while ((line = reader.readLine()) != null) {
- sBuilder.append(line + "\n");
- }
- String modelHtml = sBuilder.toString();
- inputStream.close();
- reader.close();
-
- String contentNew = modelHtml.replace(
- "<--@#$%discoverContent@#$%-->", content);
- if (night) {
- contentNew = contentNew.replace("<--@#$%colorfontsize2@#$%-->",
- "color:#8f8f8f ;");
- } else {
- contentNew = contentNew.replace("<--@#$%colorfontsize2@#$%-->",
- "color:#333333 ;");
- }
- if (flag) {
- contentNew = contentNew.replace(
- "<--@#$%colorbackground@#$%-->", "background:#B4CDE6");
- } else {
- contentNew = contentNew.replace(
- "<--@#$%colorbackground@#$%-->", "background:#F9BADA");
- }
- return contentNew;
-
- } catch (IOException e) {
- // TODO Auto-generated catch block
- e.printStackTrace();
- }
- return null;
- }
- <html>
-
- <head>
- <meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
- <meta name="viewport"
- content="width = device-width, initial-scale = 1, minimum-scale = 1, maximum-scale = 1" />
- <title></title>
- <link href="newscont.css" type="text/css" rel="stylesheet"></link>
- </head>
-
- <body style="" data-webview-width="{{webview_width}}"
- data-webview-height="{{webview_height}} ">
- <div id="content" class="main fontSize1">
- <p class="title" align="center" id="title"
- style="font-family: 'Microsoft YaHei';">
- <!-- 标题 -->
- </p>
- <div>
- <span class="src" id="source" style="font-family: 'Microsoft YaHei';">
- <!-- 来源 --> </span>
-
-
- </div>
- <div id="discoverContent"
- style="margin-top: 10px; <--@#$%colorbackground@#$%-->;border-top: 0px solid #cbcbcb; font-family: 'Microsoft YaHei'; <--@#$%colorfontsize2@#$%-->; width: 100%; height: auto"
- >
- <!-- 正文 -->
- <--@#$%discoverContent@#$%-->
-
-
- </div>
- </div>
- </body>
-
- <script language="javascript" src="jquery.js" charset="utf-8"></script>
- <script src="jquery.lazyload.js" type="text/javascript" charset="utf-8"></script>
- <script src="newscont.js" type="text/javascript" charset="utf-8"></script>
- <script type="text/javascript" charset="utf-8">
- function addlist(listStr) {
- var elem = document.getElementById("recommand-list");
- elem.innerHTML = listStr;
- }
- $(document).ready(function() {
-
- tna.adjustImageSize();
-
- $("img").lazyload({
- effect : "fadeIn"
- });
- });
-
- </script>
- </html>
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