Javascript doesn't work in the webview?

Question

I want to show a local html/javascript file in the webview. This is my code:

@Override
protected void onCreate(Bundle savedInstanceState) {

    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);

    WebView myWebView = (WebView) findViewById(R.id.webview);
    myWebView.getSettings().setJavaScriptEnabled(true);
    myWebView.loadUrl("file:///android_asset/www/index.html");
    myWebView.setWebViewClient(new WebViewClient());

}

HTML:

<!DOCTYPE html>

<html>

<head>

    <meta charset="utf-8">

    <meta http-equiv="X-UA-Compatible" content="IE=edge">

    <meta name="viewport" content="width=device-width, initial-scale=1.0">

    <title>example</title>

</head>



<body>

<p>Hi guys</p>





<script type="text/javascript">

   alert('aaaa');

</script>

</body>



</html>

HTML works but javascript doesn't work.

Why ?

possible duplicate of [JavaScript alert not working in Android WebView](http://stackoverflow.com/questions/5271898/javascript-alert-not-working-in-android-webview) — user2413972, Sep 17 '15 at 19:48

score 0 · Answer 1 · answered Sep 17 '15 at 19:47

0

This is a known problem. Most likely, you will not only works Alert. You have to use WebChromeClient for your purpose.

webView.setWebChromeClient(new WebChromeClient() { 
@Override public boolean onJsAlert(WebView view, String url, String message, JsResult result) { 
return super.onJsAlert(view, url, message, result); 
}});

answered Sep 17 '15 at 19:47

user2413972

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you don't actually have to override `onJsAlert`, since your overriding method does nothing extra. – njzk2 Sep 17 '15 at 19:54
1

is this basically a copy-paste of an existing answer and an existing comment to that answer? – njzk2 Sep 17 '15 at 19:55
"better safe than sorry" Overriding the need for easier debug. Yes. I just copied the example. – user2413972 Sep 17 '15 at 19:56

Javascript doesn't work in the webview?

1 Answers1