[TIMOB-20396] iOS: Main-Thread: Cannot create proxies in callbacks

GitHub Issue	n/a
Type	Bug
Priority	Critical
Status	Closed
Resolution	Fixed
Resolution Date	2016-04-05T15:52:53.000+0000
Affected Version/s	n/a
Fix Version/s	Release 5.4.0
Components	iOS
Labels	ios, mainthread, qe-5.4.0
Reporter	Hans Knöchel
Assignee	Hans Knöchel
Created	2016-02-13T13:21:32.000+0000
Updated	2016-07-29T21:39:24.000+0000

Description

Not sure how to proper name this ticket, but it's something with the going wrong. So whenever we want to create a Ti.UI.iOS.* proxy e.g. Ti.UI.iOS.Toolbar or Ti.UI.iOS.LivePhotoView inside a callback of a Ti.Media.openPhotoGallery (and probably other async callbacks), the proxy cannot be found and it throws the attached error. Example:

Ti.Media.openPhotoGallery({
    mediaTypes: [Ti.Media.MEDIA_TYPE_VIDEO, Ti.Media.MEDIA_TYPE_PHOTO, Ti.Media.MEDIA_TYPE_LIVEPHOTO],
    success: function(e) {
      var toolbar = Ti.UI.iOS.createToolbar({
          width: 300,
          height: 30,
          backgroundColor: "#f00"
      });
      win.add(toolbar);
    }
  });

var win = Ti.UI.createWindow({backgroundColor: "#fff"});
win.open();

The example will crash as soon as the callback is invoked. If we call it directly, the app wont crash. Note: The warning \[WARN\] Creating \[object TiUIiOS\] in a different context than the calling function. is logged before the crash. So it might be related to TIMOB-20397, although the TiUIiOSProxy gets initialized correctly with \[\[TiUIiOSProxy alloc\] _initWithPageContext:\[self executionContext\]\];.

Attachments

File	Date	Size
Simulator Screen Shot 11.03.2016, 13.32.54.png	2016-03-11T12:36:09.000+0000	79881

Comments

Hans Knöchel 2016-03-11

[~penrique] Added some more infos and screenshots.
Hans Knöchel 2016-03-15

PR: https://github.com/appcelerator/titanium_mobile/pull/7847
Josh Longton 2016-07-28

[~hansknoechel] [~wluu] and I have been unable to reproduce the issue above, do you have any more steps or ENV details that could help. Thanks
Hans Knöchel 2016-07-29

[~jlongton] Probably because it has been fixed / merged since a while. So if the above examples runs through, it's great and as supposed to be!

Josh Longton 2016-07-29

Verified as fixed. Tested on:

   iPhone 6s (9.3.1)
   iOS Simulator (9.3)
    Mac OSX El Capitan 10.11.6
   Studio: 4.7.0.201607130543
    Ti SDK: 5.4.0.v20160727143921
    Appc NPM: 4.2.7
   Appc CLI: 5.4.0-37
   Node: v4.4.4

*Closing issue.*

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