how do you call javascript from native android code

Question

i know that, from this website, in order to call javascript function of a webpage from android is webview.loadUrl("javascript:CALLME()")

my question is, i need to first load the page first where i have my javasctip function CALLME() defined right?

in other words

i should have

  webview.loadUrl("http://myweb.com/web.html)  // web.html has javascript CALLME() defined
  webview.loadUrl("javascript:CALLME()");

right??

apparently, CALLME() is not getting called

please help

Answer 1

你检查了吗？

 webview.getSettings().setJavaScriptEnabled(true);

Answer 2

Like this:

myWebView.loadUrl("javascript:$.mobile.showPageLoadingMsg()");

provided you have

WebSettings webSettings = myWebView.getSettings();
webSettings.setJavaScriptEnabled(true);