Use dependOnInheritedWidgetOfExactType instead inheritFromWidgetOfExactType for flutter constants best practices

Question

I want to implement best practices for constants in Flutter by Rémi Rousselet's: What's the best practice to keep all the constants in Flutter?

but inheritFromWidgetOfExactType is deprecated:

'inheritFromWidgetOfExactType' is deprecated and shouldn't be used. Use dependOnInheritedWidgetOfExactType instead. This feature was deprecated after v1.12.1.. Try replacing the use of the deprecated member with the replacement.

Could you help me to implement that with dependOnInheritedWidgetOfExactType?

I've updated the answer to make it work with the new method instead — Rémi Rousselet, Jan 15 '20 at 12:58
Thanks! i couldn't comment because of reputation. But it still have an error: 'MyConstants.updateShouldNotify' ('bool Function()') isn't a valid override of 'InheritedWidget.updateShouldNotify' ('bool Function(InheritedWidget)'). — rafitajaen, Jan 15 '20 at 13:01

score 6 · Answer 1 · answered Jul 10 '20 at 14:30

6

I use in my class Provider extends InheritedWidget like this

static Bloc of(BuildContext context) {
    return context.dependOnInheritedWidgetOfExactType<Provider>().bloc;
  }

answered Jul 10 '20 at 14:30

Paulo Alexandre Machado

101
1
5

score 0 · Answer 2 · answered Feb 07 '21 at 20:37

Example of a replacement:

// Before, We write :
 context.inheritFromWidgetOfExactType(Name) as Name;

// Now instead of taking a Type as argument, The method is a generic.
  context.dependOnInheritedWidgetOfExactType<Name>();

A snippet of using the dependOnInheritedWidgetOfExactType method

 static Name of(BuildContext context) {
    return context.dependOnInheritedWidgetOfExactType<Name>();
  }

Use dependOnInheritedWidgetOfExactType instead inheritFromWidgetOfExactType for flutter constants best practices

2 Answers2