Passing data from java class to Web View html

Question

I\'m loading below html in my webView

https://mail-attachment.googleusercontent.com/attachment/?ui=2&ik=25c0c425c6&view=att&th=138db54ff27a

Answer 1

Be careful to call javascript function like this, the str may include single quote or other special characters.

String str = "xxx";
myWebView.loadUrl("javascript:xxx('"+str+"')");

I suggest to encode the str in base64, and decode it on javascript side.

• Android

  String str = "xxx";
  //encode in base64
  String base64Str = Base64.encodeToString(str.getBytes(), Base64.NO_WRAP);
  myWebView.loadUrl("javascript:xxx('"+ base64Str +"')");
  

• Javascript

  function xxx(val) {
      //decode from base64
      var str = atob(data)
  }