[TIMOB-12095] Android: EvalJS does not work before a webview is loaded

GitHub Issue	n/a
Type	Bug
Priority	High
Status	Closed
Resolution	Won't Fix
Resolution Date	2012-12-14T00:54:11.000+0000
Affected Version/s	n/a
Fix Version/s	n/a
Components	Android
Labels	n/a
Reporter	Allen Yeung
Assignee	Ingo Muschenetz
Created	2012-12-14T00:41:52.000+0000
Updated	2018-03-02T01:37:49.000+0000

Description

Example:

var win = Ti.UI.createWindow({
	
});
var webview = Ti.UI.createWebView({
	url: 'test.html'
});

webview.evalJS('var phrases = {}');
webview.evalJS('phrases.breakfast = "' + L('breakfast') + '"');
webview.evalJS('phrases.nutritional_values = "' + L('nutritional_values') + '"');

win.add(webview);

win.open();

test.html file:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
	<title>local webview</title>
</head>
<body id="mybody" style="height:500px;background-color:#999;background-image:url(../images/bg.png)">
	This is a test
	<script>
		Titanium.API.info("--------------------------------");
		Titanium.API.info(phrases.breakfast);
	</script>

	
</body>
</html>

Expected result: You should see the value 'breakfast' printed out as it does in iOS Actual result: The value is undefined and nothing prints out.

Comments

Allen Yeung 2012-12-14

This can't be fixed in android since we rely on the webview to run evalJS. We use loadURL('javascript:') to run the javascript code. If we do this before we actually load the webpage, it won't work since the previous javascript context will be wiped out once the actual webpage loads.
Eric Merriman 2013-01-10

Closing based on Allen's comments.

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