Whenever a user clicks the save button, I want to display a loading indicator. The state changes correctly when the button is clicked, but for some reason, reverting back the value of the loading property on scope to false doesn't update the UI.
Could it be an issue with how I'm handling scope properties, or is this a bug in Angular?
Check out my jsBin here: http://jsbin.com/xafexorope/2/edit?html,output
The issue causing it to not work is due to Angular's internal dirty-checking loop not being triggered. This happens because a standard setTimeout function is being used. Instead of that, you can either manually call $scope.$apply() at the end of your setTimeout callback, or even better, utilize the angular wrapper $timeout.
Check out the updated jsbin here: http://jsbin.com/devuhovaxa/3/edit
Additionally, refer to the documentation for $timeout: https://docs.angularjs.org/api/ng/service/$timeout
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