[TIMOB-3510] Android evalJS crashing with SIGSEGV

GitHub Issue	n/a
Type	Bug
Priority	Trivial
Status	Closed
Resolution	Duplicate
Resolution Date	2011-04-15T03:46:06.000+0000
Affected Version/s	n/a
Fix Version/s	n/a
Components	Android
Labels	android, defect
Reporter	KT
Assignee	Don Thorp
Created	2011-04-15T03:46:05.000+0000
Updated	2017-03-29T22:15:05.000+0000

Description

I've been going over this, and I'm fairly certain this is a bug.

Here's the minimal test that will crash on Android with SIGSEGV:

var win = Ti.UI.createWindow({

// Android
navBarHidden: false,
exitOnClose: true

}); var view = Ti.UI.createWebView({

scalesPageToFit: false,
url: 'something.html'

}); view.addEventListener('load', function() {

view.evalJS("test");

}); win.add(view);
win.open();

(Although I find it hard to believe people aren't somehow using evalJS() on Android. You'd think it would be a higher-profile issue.)

Anyway, that code gives a crash dump similar to http://pastie.org/1754641">http://pastie.org/1754641.

Comments

KT 2011-04-15

Sorry about that formatting. I just realized how it pasted. Hopefully this is better.

(Also, confirming that this crash also happens with 1.7 beta.)

   var win = Ti.UI.createWindow({
       // Android
       navBarHidden: false,
       exitOnClose: true
   });
   var view = Ti.UI.createWebView({
       scalesPageToFit: false,
       url: 'something.html'
   });
   view.addEventListener('load', function() {
       view.evalJS("test");
   });
   win.add(view);
   win.open();

KT 2011-04-15

Just as some further background and to help try to pinpoint it regression-wise, this issue seems to go back at least a year:

http://developer.appcelerator.com/question/117750/android-evaljs">http://developer.appcelerator.com/question/117750/android-evaljs

http://developer.appcelerator.com/question/67431/js-to-webview-working-on-iphone-not-in-android"> http://developer.appcelerator.com/question/67431/js-to-webview-working-on-iphone-not-in-android

http://developer.appcelerator.com/question/41671/problem-with-webviewevaljs---doesnt-seem-to-work-at-all-with-android-emulator"> http://developer.appcelerator.com/question/41671/problem-with-webviewevaljs---doesnt-seem-to-work-at-all-with-android-emulator

http://developer.appcelerator.com/question/13431/evaljs-not-working-anymore-since-12x-upgrade-on-android-16"> http://developer.appcelerator.com/question/13431/evaljs-not-working-anymore-since-12x-upgrade-on-android-16

This is, strangely, in direct contravention to your drillbit test in:

https://github.com/appcelerator/titanium_mobile/commit/597a4878af606e255811964cc5cbc9b93df5dfb2"> https://github.com/appcelerator/titanium_mobile/commit/597a4878af606e255811964cc5cbc9b93df5dfb2

If that works, then what is drillbit doing differently so that it works whereas the app.js above crashes hard immediately?
KT 2011-04-15

Further information: This crash doesn't seem to happen on 3.0. But the necessary Ti Javascript seems to never get injected, as is the case with 1.6 (i.e., no crash, but no Ti injection).
hal 2011-04-15

The information in this ticket has been moved to http://appc.me/timob-3554" title="Ticket #3554">#3554
Lee Morris 2017-03-29

Closing ticket as duplicate.

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