MathJax渲染Android
问题描述：
现在我编写了Android程序。此应用程序必须使用MathJax库将Form FORM呈现给WebView。但我有问题......有时它不工作（形式不定期）... 现在来源：MathJax渲染Android
// This function calls everytime before output
public static void clearWebView()
{
w.loadDataWithBaseURL("http://bar", "<!DOCTYPE html><html><head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0,maximum-scale=1.0, user-scalable=no\"> <script type='text/x-mathjax-config'>"
+"MathJax.Hub.Config({ "
+"showMathMenu: false, "
+"jax: ['input/TeX','output/HTML-CSS'], "
+"extensions: ['tex2jax.js'], "
+"TeX: { extensions: ['AMSmath.js','AMSsymbols.js',"
+"'noErrors.js','noUndefined.js', 'MathZoom.js'" +
"] } "
+"});</script>"
+"<script type='text/javascript' "
+"src=\"file:///android_asset/MathJax/MathJax.js\""
+"></script></head><body><span id='solve'></span></body></html>" ,"text/html","utf-8", "");
}
和两个渲染功能：
public static void RenderHTML(String html)
{
w.loadUrl("javascript:document.getElementById('solve').innerHTML += '" + html + "';");
}
public static void RenderMath(String tex)
{
RenderHTML("\\\\[" + doubleEscapeTeX(tex) + "\\\\]");
w.loadUrl("javascript:MathJax.Hub.Queue(['Typeset',MathJax.Hub]);");
}
答
这是完美的解决方案4.4：
wq.getSettings().setJavaScriptEnabled(true);
wq.getSettings().setBuiltInZoomControls(true);
wq.getSettings().setLoadWithOverviewMode(true);
wq.loadDataWithBaseURL("http://bar/", "<script type='text/x-mathjax-config'>"
+"MathJax.Hub.Config({ "
+"showMathMenu: false, "
+"jax: ['input/MathML','output/HTML-CSS'], " // output/SVG
+"extensions: ['mml2jax.js'], "
+"TeX: { extensions: ['noErrors.js','noUndefined.js'] }, "
//+"'SVG' : { blacker: 30, "
// +"styles: { path: { 'shape-rendering': 'crispEdges' } } } "
+"});</script>"
+"<script type='text/javascript' "
+"src='file:///android_asset/MathJax/MathJax.js'"
+"></script><span id='text'> </span> <span id='math'></span>", "text/html", "utf-8", "");
if (android.os.Build.VERSION.SDK_INT < 19)
{
wq.loadUrl("javascript:document.getElementById('math').innerHTML='"
+ "<math xmlns=\"http://www.w3.org/1998/Math/MathML\">"
+ "<mstyle displaystyle=\"true\">"
+ doubleEscapeTeX(questn+ans)
+ "</mstyle></math>';");
wq.loadUrl("javascript:MathJax.Hub.Queue(['Typeset',MathJax.Hub]);");
}
else
{
wq.evaluateJavascript("javascript:document.getElementById('math').innerHTML='<font color=\"#000000\">`"+doubleEscapeTeX(questn+ans)+"`</font>';",null);
wq.loadUrl("javascript:MathJax.Hub.Queue(['Typeset',MathJax.Hub]);");
}
我为我的应用程序使用相同的代码并面临Android 4.4上的问题。它在Android 4.3及更低版本上为我工作。 – 2013-12-14 10:50:20
这是我在4.4上遇到的问题，http://stackoverflow.com/questions/20582282/uncaught-referenceerror-while-loading-asset-file-on-android-4-4 – 2013-12-14 11:12:48