Android webView与Javascript交互

发布于 2024-10-20 11:42:43 字数 1133 浏览 1 评论 0 原文

我正在处理一个嵌入了 WebView 的活动。现在我想显示一些内容：

WebView mweb = new WebView(this);  
mweb.getSettings().setJavaScriptEnabled(true);  
setContentView(mweb);  
......   
mweb.loadData(tot, "text/html", "utf-8");

String tot 是我喜欢在 mweb 中呈现的 html 文本，它由 div 标签和“ondblclick”事件组成，例如this：

    <script type="text/javascript">
        var test = "false";
        function changeHighlight(myElement) {
            if(test == "false"){
               document.getElementById(myElement).className = 'highlight';
               test = "true";
            }else{
               document.getElementById(myElement).className = 'default';
               test = "false";
            }
        }
    </script>    
    <body>
         <div id="center" ondblclick="javascript:changeHighlight('center');">Select here!!!</div>
    </body>

我如何在 WebView 中使用 JavaScript 触发此事件来选择 div 并突出显示它？ “onclick”事件一切正常，但“ondblclick”事件则不然。

那么我如何提示用户选择是否选择 div 标签？是否可以插入确认对话框？

任何建议将不胜感激。对不起我的英语......谢谢

原文

I'm working with an activity with a WebView embedded in it.
Now i want to display some content:

WebView mweb = new WebView(this);  
mweb.getSettings().setJavaScriptEnabled(true);  
setContentView(mweb);  
......   
mweb.loadData(tot, "text/html", "utf-8");

String tot is the html text i like to render in the mweb, wich is composed of the div tag with an 'ondblclick' event like this:

    <script type="text/javascript">
        var test = "false";
        function changeHighlight(myElement) {
            if(test == "false"){
               document.getElementById(myElement).className = 'highlight';
               test = "true";
            }else{
               document.getElementById(myElement).className = 'default';
               test = "false";
            }
        }
    </script>    
    <body>
         <div id="center" ondblclick="javascript:changeHighlight('center');">Select here!!!</div>
    </body>

How i can trigger this event with JavaScript inside the WebView to select div and to highlight it ?
All is ok with 'onclick' event but not with 'ondblclick'.

Then how i can prompt the user to choose if the div tag is selected or not?
Is it possible to insert a confirm dialog ?

Any suggestion will be appreciated.
Sorry for my english.......thanks