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android textview 嵌套 html 解析图片
来源:互联网   发布日期:2015-11-15 10:17:01   浏览:5949次  

导读:Html.fromHtml();//处理未知标签,通常是系统默认不能处理的标签final Html.TagHandler tagHandler = new Html.TagHandler() {int contentIndex = 0;/*** opening : 是否为开始标签* tag: 标签名......

Html.fromHtml("");

//处理未知标签,通常是系统默认不能处理的标签

final Html.TagHandler tagHandler = new Html.TagHandler() {

int contentIndex = 0;

/**

* opening : 是否为开始标签

* tag: 标签名称

* output:输出信息,用来保存处理后的信息

* xmlReader: 读取当前标签的信息,如属性等

*/

public void handleTag(boolean opening, String tag, Editable output,

XMLReader xmlReader) {

if("mytag".equals(tag)) {

if(opening) {//获取当前标签的内容开始位置

contentIndex = output.length();

try {

final String color = (String) xmlReader.getProperty("color");

} catch (Exception e) {

e.printStackTrace();

}

} else {

final int length = output.length();

String content = output.subSequence(contentIndex, length).toString();

SpannableString spanStr = new SpannableString(content);

spanStr.setSpan(new ForegroundColorSpan(Color.GREEN), 0, content.length(), Spannable.SPAN_INCLUSIVE_EXCLUSIVE);

output.replace(contentIndex, length, spanStr);

}

}

System.out.println("opening:" + opening + ",tag:" + tag + ",output:" + output);

}};

//解析图片

final Html.ImageGetter imageGetter = new Html.ImageGetter() {

public Drawable getDrawable(String source) {

//在此必须异步加载图片

Drawable d = null;

try {

InputStream is = new DefaultHttpClient().execute(new HttpGet(source)).getEntity().getContent();

Bitmap bm = BitmapFactory.decodeStream(is);

d = new BitmapDrawable(bm);

//setBounds(0, 0, bm.getWidth(), bm.getHeight());

d.setBounds(0, 0, 200, 300);

} catch (Exception e) {e.printStackTrace();}

return d;

}

};

richText = Html.fromHtml(html, imageGetter, tagHandler);

mTVText.setText(richText);

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相关热词: html 嵌套

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