title: Ionic 2 Multilevel/Hierarchical select
body: <p>In ionic 2, how can I create a tree view select list? Previously in an web project I've used <a href="https://www.npmjs.com/package/ngx-treeview" rel="nofollow noreferrer">ngx-treeview</a> and I want to achieve similar result (<a href="https://leovo2708.github.io/ngx-treeview/" rel="nofollow noreferrer">Demo</a>--example 1). I can use the same module but only problem is ionic doesn't support html dropdown and input. I couldn't find any ionic module similar to this either. Does anyone know something similar to this for ionic?</p>