查找单词并在android webview中突出显示这些单词

Question

有一个webview，其中显示了在Google搜索中触发的Google查询的结果。 这是我的 activity_result

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="match_parent">
    <WebView
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:id="@+id/mywebView">
    </WebView>
</LinearLayout>

相应的Java文件为 ResultActivity.java ，该文件会在webview中加载google网络搜索结果页。

public class ResultActivity extends AppCompatActivity {
    private Intent intent;
    private String question, option1, option2, option3;
    private WebView webView;
    private String as;
    public static String Highlightscript;
    private int mCurrentSearchIndex = -1;
    private String[] mSearchTerms;

    @SuppressLint("SetJavaScriptEnabled")
    @Override
    protected void onCreate(@Nullable Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_result);
        intent = getIntent();
        question = intent.getStringExtra("Ques");
        option1 = intent.getStringExtra("Op1");
        option2 = intent.getStringExtra("Op2");
        option3 = intent.getStringExtra("Op3");
        webView = (WebView) findViewById(R.id.mywebView);
        webView.getSettings().setJavaScriptEnabled(true);
        webView.setWebChromeClient(new WebChromeClient());
        webView.setWebViewClient(new MyWebViewClient());

        mSearchTerms = new String[]{option1, option2, option3};
        openURL();
        option1 = "a";
    }

    private class MyWebViewClient extends WebViewClient {
        @Override
        public boolean shouldOverrideUrlLoading(WebView view, String url) {
            view.loadUrl(url);
            return true;
        }

        @Override
        public void onPageFinished(WebView view, String url) {

            super.onPageFinished(view, url);

        }
    }

    private void openURL() {
        webView.loadUrl("http://www.google.com/search?q=" + question);
        webView.requestFocus();
    }
}

如果这些option1，option2，option3字符串出现在网页上（该页面显示在webview中），我想突出显示它们。 这可以用javascript完成。我读过，但是对如何申请感到困惑。我在这里提供的Java脚本文件。这是 hilitor.js

function Hilitor(id, tag)
{

  var targetNode = document.getElementById(id) || document.body;
  var hiliteTag = tag || "EM";
  var skipTags = new RegExp("^(?:" + hiliteTag + "|SCRIPT|FORM|SPAN)$");
  var colors = ["#ff6", "#a0ffff", "#9f9", "#f99", "#f6f"];
  var wordColor = [];
  var colorIdx = 0;
  var matchRegex = "";
  var openLeft = false;
  var openRight = false;

  // characters to strip from start and end of the input string
  var endCharRegex = new RegExp("^[^\\\w]+|[^\\\w]+$", "g");

  // characters used to break up the input string into words
  var breakCharRegex = new RegExp("[^\\\w'-]+", "g");

  this.setMatchType = function(type)
  {
    switch(type)
    {
      case "left":
        this.openLeft = false;
        this.openRight = true;
        break;

      case "right":
        this.openLeft = true;
        this.openRight = false;
        break;

      case "open":
        this.openLeft = this.openRight = true;
        break;

      default:
        this.openLeft = this.openRight = false;

    }
  };

  this.setRegex = function(input)
  {
    input = input.replace(endCharRegex, "");
    input = input.replace(breakCharRegex, "|");
    input = input.replace(/^\||\|$/g, "");
    if(input) {
      var re = "(" + input + ")";
      if(!this.openLeft) re = "\\b" + re;
      if(!this.openRight) re = re + "\\b";
      matchRegex = new RegExp(re, "i");
      return true;
    }
    return false;
  };

  this.getRegex = function()
  {
    var retval = matchRegex.toString();
    retval = retval.replace(/(^\/(\\b)?|\(|\)|(\\b)?\/i$)/g, "");
    retval = retval.replace(/\|/g, " ");
    return retval;
  };

  // recursively apply word highlighting
  this.hiliteWords = function(node)
  {
    if(node === undefined || !node) return;
    if(!matchRegex) return;
    if(skipTags.test(node.nodeName)) return;

    if(node.hasChildNodes()) {
      for(var i=0; i < node.childNodes.length; i++)
        this.hiliteWords(node.childNodes[i]);
    }
    if(node.nodeType == 3) { // NODE_TEXT
      if((nv = node.nodeValue) && (regs = matchRegex.exec(nv))) {
        if(!wordColor[regs[0].toLowerCase()]) {
          wordColor[regs[0].toLowerCase()] = colors[colorIdx++ % colors.length];
        }

        var match = document.createElement(hiliteTag);
        match.appendChild(document.createTextNode(regs[0]));
        match.style.backgroundColor = wordColor[regs[0].toLowerCase()];
        match.style.fontStyle = "inherit";
        match.style.color = "#000";

        var after = node.splitText(regs.index);
        after.nodeValue = after.nodeValue.substring(regs[0].length);
        node.parentNode.insertBefore(match, after);
      }
    };
  };

  // remove highlighting
  this.remove = function()
  {
    var arr = document.getElementsByTagName(hiliteTag);
    while(arr.length && (el = arr[0])) {
      var parent = el.parentNode;
      parent.replaceChild(el.firstChild, el);
      parent.normalize();
    }
  };

  // start highlighting at target node
  this.apply = function(input)
  {
    this.remove();
    if(input === undefined || !input) return;
    if(this.setRegex(input)) {
      this.hiliteWords(targetNode);
    }
  };

}

要找到这些字符串，我必须在ResultActivity中的javascript下面调用它。

 var myHilitor = new Hilitor("content");
 myHilitor.apply("+option1+''+option2+''+option3" );

问题陈述

  

找不到放置 hilitor.js 的方法以及如何将其加载的方法   webview以及如何在Java文件中包含这2行代码。