I need to display some hierarchical data in a side menu of an Android app. Sort of a tree, with nodes that can be dragged and dropped around. The entire tree has to be expanded from the start.
I understand this interface is not ideal for mobile devices, especially smartphones. I'd like to know what's the recommended paradigm in Material Design for this scenario.
That's what I want to create. User should be able to change order of Item D and Item E, and at the same time to move Item A below Item B, or to add a new descentand Item I from Item F and so on. When clicking on one of the items a view should be loaded displaying all item informations and metadata.