ui-router Why parent states must be abstract
Why parent views have to be abstract in order to have child views (nested views) rendered?
$stateProvider
.state('A', {url: '/A', abstract: true, templateUrl: 'views/A.html'})
.state('A.B', {url: '', abstract: true, templateUrl: 'views/B.html'})
.state('A.B.C', {url:'', abstract:false, templateUrl:'views/C.html'});
The parent view 'A' is hosted in home.html as follow:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Yomingo</title>
<link href="lib/bootstrap/css/bootstrap.css" rel="stylesheet"/>
<link href="lib/bootstrap/css/bootstrap-responsive.css" rel="stylesheet"/>
</head>
<body>
<div ui-view>
</div>
<script type="text/javascript" data-main="scripts/main" src="lib/require/require.js"></script>
</body>
</html>
If any of the parent states 'A' or 'B' is marked as abstract=false the ui-view content is not rendered.
Answer
I've been having similar trouble.
Your three states are all using the same URL, /A:
- A: '/A'
- A.B: '/A' + ''
- A.B.C: '/A' + '' + ''
As they have URLs defined, the current state will be chosen based on your current URL. You can only be in one state at a time, so presumably the state that is chosen is the one defined first.
If you make the A and A.B states abstract then they cannot be transitioned into and so will not be considered when you browse to /A. Thus A.B.C is chosen, inheriting from A.B and A.
If you are looking to show more that one of your views at a time then I would recommend reading the docs for multiple named views to make it easier to keep track of.