Flutter - Render new Widgets on click

Question

The title basically says it all. A very nooby question... I have this basic code to create the initial state of my app :

class MyApp extends StatelessWidget {
           


        

Answer 1

Your build function is "just code", so you can build the array you pass to the column dynamically, using something like

var children = [];
children.add(new InputWidget());
if (_showAnother)
  children.add(new InputWidget());
...
  body: new Column(
    ...
    children: children,
...

...where _showAnother is some sort of bool field that you set when the button is tapped.