AfterFirstFrameMixin<T extends StatefulWidget> mixin

This demo showcases how this package resolves the shortcomings shown above:

import 'dart:async';

import 'package:after_first_frame_mixin/after_first_frame_mixin.dart';
import 'package:flutter/material.dart';

void main() => runApp(const MyApp());

@immutable
class MyApp extends StatelessWidget {
  const MyApp({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return const MaterialApp(
      title: 'Example',
      home: HomeScreen(),
    );
  }
}

@immutable
class HomeScreen extends StatefulWidget {
  const HomeScreen({Key? key}) : super(key: key);

  @override
  HomeScreenState createState() => HomeScreenState();
}

class HomeScreenState extends State<HomeScreen>
    with AfterFirstFrameMixin<HomeScreen> {
  @override
  Widget build(BuildContext context) {
   return Scaffold(
     body: Container(
       child: const Center(
         child: Text("Example"),
       ),
     ),
   );
  }

  void showHelloWorld() {
    showDialog(
      context: context,
      builder: (BuildContext context) {
        return AlertDialog(
          content: const Text('Hello World'),
          actions: <Widget>[
            TextButton(
              onPressed: () => Navigator.of(context).pop(),
              child: const Text('DISMISS'),
            )
          ],
        );
      },
    );
  }

  @override
  FutureOr<void> afterFirstFrame(BuildContext context) {
    showHelloWorld();
  }
}

Superclass constraints

State<T>

Properties

context → BuildContext: The location in the tree where this widget builds.
no setterinherited
hashCode → int: The hash code for this object.
no setterinherited
mounted → bool: Whether this State object is currently in a tree.
no setterinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
widget → T: The current configuration.
no setterinherited

Methods

activate() → void: Called when this object is reinserted into the tree after having been removed via deactivate.
inherited
afterFirstFrame(BuildContext context) → FutureOr<void>
build(BuildContext context) → Widget: Describes the part of the user interface represented by this widget.
inherited
deactivate() → void: Called when this object is removed from the tree.
inherited
debugFillProperties(DiagnosticPropertiesBuilder properties) → void: Add additional properties associated with the node.
inherited
didChangeDependencies() → void: Called when a dependency of this State object changes.
inherited
didUpdateWidget(covariant T oldWidget) → void: Called whenever the widget configuration changes.
inherited
dispose() → void: Called when this object is removed from the tree permanently.
inherited
initState() → void: Called when this object is inserted into the tree.
override
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
reassemble() → void: Called whenever the application is reassembled during debugging, for example during hot reload.
inherited
setState(VoidCallback fn) → void: Notify the framework that the internal state of this object has changed.
inherited
toDiagnosticsNode({String? name, DiagnosticsTreeStyle? style}) → DiagnosticsNode: Returns a debug representation of the object that is used by debugging tools and by DiagnosticsNode.toStringDeep.
inherited
toString({DiagnosticLevel minLevel = DiagnosticLevel.info}) → String: A string representation of this object.
inherited
toStringShort() → String: A brief description of this object, usually just the runtimeType and the hashCode.
inherited

Operators

operator ==(Object other) → bool: The equality operator.
inherited

AfterFirstFrameMixin<T extends StatefulWidget> mixin

Properties

Methods

Operators

after_first_frame_mixin library