inspire from: nostra13/Android-Universal-Image-Loader#451
description:
使用 Android-Universal-Image-Loader 实现 android Html.fromHtml (String source, Html.ImageGetter imageGetter, Html.TagHandler tagHandler)中的imageGetter方法.后加载图片.
sample:
String htmlSnippetCode = "如图,已知抛物线 y=ax<sup>2</sup>+bx+c(a≠0)的顶点坐标为(4,<img src=\"http://p2.qingguo.com/G1/M00/9F/B2/rBACE1PfJ7iQLN4bAAABOwdsNv0023.png\" height=\"42\" width=\"7\">),且与y轴交于点C,与x轴交于A,B两点(点A在点B的左边),且A点坐标为(2,0)。在抛物线的对称轴 <img src=\"http://p2.qingguo.com/G1/M00/9F/B2/rBACE1PfJ7iTXZhbAAABESQziLA683.png\" height=\"21\" width=\"6\">上是否存在一点P,使AP+CP的值最小?若存在,则AP+CP的最小值为( )<img src=\"http://p1.qingguo.com/G1/M00/62/2A/rBACFFPfJ7iiO8gTAAALHRPDATw26.jpeg\" height=\"165\" width=\"193\">";
TextView TVMain = (TextView) this.findViewById(R.id.TVMain);
UilImageGetter imageGetter = new UilImageGetter(TVMain,this);
Spanned spanned = Html.fromHtml(htmlSnippetCode, imageGetter, null);
TVMain.setText(spanned);