No “Drag and Drop” Flutter Development Yet
Although there are a lot of thinks to love about Flutter at this point (8/1/2018) one noticeable difference from Microsoft “Drag and Drop” widgets onto a named form is that everything is programmatic with Flutter at this point. A good reference that calls it out is:
Copy and paste in the editor works, and the rapid code-test-recode, along with a visual grids and “tool-tip” looking info in your running prototype, brings the format tweeting in from the prototype side. In the long run it might be a better approach … but it requires any Flutter developer to have some coding skills to accomplish anything, which is not always the case in some development systems.