Flutter Back button with return data

Question

I have an interface with two buttons that pop and return true or false, like so:

onPressed: () => Navigator.pop(context, false)

I need t

Answer 1

While you can override the back button for custom behaviors, don't.

Instead of overriding the button with a custom pop, you should handle the null scenario. There are a few reasons why you don't want to manually override the icon:

• The icon change on IOS and Android. On IOS it uses arrow_back_ios while android uses arrow_back
• The icon may automatically disappear if there's no route to go back
• Physical back button will still return null.

Instead should do the following:

var result = await Navigator.pushNamed(context, "/");
if (result == null) {
  result = false;
}