[AC-5218] 6.2.0.GA tabGroup.setActiveTab error "A view can only be associated with at most one view controller at a time"

GitHub Issue	n/a
Type	Bug
Priority	n/a
Status	Closed
Resolution	Needs more info
Resolution Date	2017-10-20T21:25:33.000+0000
Affected Version/s	n/a
Fix Version/s	n/a
Components	n/a
Labels	n/a
Reporter	Anthony Chung
Assignee	Shak Hossain
Created	2017-09-21T06:13:30.000+0000
Updated	2017-10-30T23:02:53.000+0000

Description

Attachments

File	Date	Size
CI-Remote-iPhoneX-agents.png	2017-10-11T07:06:50.000+0000	296363
CI-Remote-iPhoneX-pipelines.png	2017-10-11T07:06:51.000+0000	174590
CI-Remote-iPhoneX-settings.png	2017-10-11T07:07:44.000+0000	216568

Comments

Hans Knöchel 2017-09-21

Please provide a full test-case that is reproducible, the current one looks copied from your app which makes it harder to pinpoint for us. Thanks!

Damien Laureaux 2017-10-11

Hi! Same issue for me since I use TiSDK 6.2.2.GA. I have tabGroup with ListViews (Alloy project). I get randomly this error:

   [ERROR] Script Error {
   [ERROR]     column = 4596;
   [ERROR]     line = 1;
   [ERROR]     message = "A view can only be associated with at most one view controller at a time! View <UITableView: 0x132890a00; frame = (0 0; 0 0); clipsToBounds = YES; hidden = YES; autoresize = W+H; gestureRecognizers = <NSArray: 0x17424fb40>; layer = <CALayer: 0x174220c40>; contentOffset: {0, 0}; contentSize: {0, 0}> is associated with <UITableViewController: 0x131e4e000>. Clear this association before associating this view with <UITableViewController: 0x13391ed50>.";
   [ERROR]     sourceURL = "file:///var/containers/Bundle/Application/F473A42A-D6EA-4675-8E63-E36D2C3F9FCA/CI%20Remote.app/alloy/controllers/PipelineList.js";
   [ERROR]     stack = "[native code]\nController@file:///var/containers/Bundle/Application/F473A42A-D6EA-4675-8E63-E36D2C3F9FCA/CI%20Remote.app/alloy/controllers/PipelineList.js:1:4596\ncreateController@file:///var/containers/Bundle/Application/F473A42A-D6EA-4675-8E63-E36D2C3F9FCA/CI%20Remote.app/alloy.js:1:5016\nController@file:///var/containers/Bundle/Application/F473A42A-D6EA-4675-8E63-E36D2C3F9FCA/CI%20Remote.app/alloy/controllers/index.js:1:1353\ncreateController@file:///var/containers/Bundle/Application/F473A42A-D6EA-4675-8E63-E36D2C3F9FCA/CI%20Remote.app/alloy.js:1:5016\nglobal code@file:///var/containers/Bundle/Application/F473A42A-D6EA-4675-8E63-E36D2C3F9FCA/CI%20Remote.app/app.js:1:272";
   [ERROR] }

The PipelineList.js is the next screen after clicking on the first screen (Pipelines). I have joined my app with the two tabs with listView where I get a lot of crashes when the app starts or when I navigate to children screen with also listViews. !CI-Remote-iPhoneX-pipelines.png|thumbnail! !CI-Remote-iPhoneX-agents.png|thumbnail! !CI-Remote-iPhoneX-settings.png|thumbnail! I will try to reproduce this on a clean project but it seems like having these elements, is enough to crash the app: - tabGroup with a minimum of two tabs - listView on both tabs - activeTab() on any tabs at boot

Sharif AbuDarda 2017-10-12

Hello, Please provide a full test-case that is reproducible. We will be investigating the issue after we can reproduce the issue on our end. Thanks.

Anthony Chung 2017-10-30

[~timoa] Following might help... Forcing the stages to be separated on the thread in consecutive order by wrapping it in a defer function and a timeout of zero. (It might be affected by run on main thread.)

   		var tab = $.index.tabs[_tabIndex];
   
   		_.defer(function(){
   			// jscore and run on main thread require this defer
   			$.index.setActiveTab(tab);
   		},0);
   		_.defer(function(){
   			// $.index.tabs[_tabIndex].open(_controller);
   			tab.open(_controller);
   			tab = null;
   		},0);

Anthony Chung 2017-10-30

[~timoa] It looks like while the animation and switch is occuring, during the process the view is associated with two instead of one. The defer method, makes it go one at a time, and looks to have fixed it for me.
Damien Laureaux 2017-10-30

Thanks, @threethirds, I think that my problem is different because it appends randomly after I opened different windows in the same tab, without using setActiveTab(). But, your research about the main thread helped me to fix my issue. I have added this line to my tiapp.xml (like the kitchen sink v2 app) to use the main thread only and it solved my errors. Doesn't look to have lower performance: <property name="run-on-main-thread" type="bool">true</property>
Anthony Chung 2017-10-30

[~timoa] Great to hear you were able to get a win! I'm still trying to wrap my head around how run-on-main-thread and jscore changes the way we need to code in Titanium. Especially for larger code bases. At the moment I mainly infer what it breaks and work arounds for the moment :) These look like dependencies in hyperloop, so ironing out these issues will hopefully mean a stable base to try hyperloop. All the best!

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