Stateful widget lifecycle

gistfile1.txt

import 'package:flutter/material.dart';


void main() {
  runApp(MyApp());
}

class MyApp extends StatefulWidget {
  
  static final String TAG = "MyApp.";
    
  MyApp() : super() {
    print("${TAG}Constructor()");
  }

  @override
  State createState() {
    print("${TAG}createState()");
    
    return _MyAppState();
  }
}
  

class _MyAppState extends State<MyApp> {
  
  final String TAG = "_MyAppState.";
  
  _MyAppState() : super() {
    print("${TAG}Constructor()");
  }
  
  @override
  void didChangeDependencies() {
    super.didChangeDependencies();
    
    print("${TAG}didChangeDependencies()");
    
    this._dump();
  }

  @override
  void didUpdateWidget(MyApp old) {
    super.didUpdateWidget(old);
    
    print("${TAG}didUpdateWidget()");
  }
  
  @override
  void initState() {
    super.initState();
    
    print("${TAG}initState()");  
    
    this._dump();
  }
  
  @override
  Widget build(BuildContext context) {
    print("${TAG}build()");
    
    Future.delayed(
      Duration(seconds: 1), 
      () => {_dump()}
    );

    return MaterialApp(
      debugShowCheckedModeBanner: true,
      theme: Theme.of(context),
      home: Scaffold(
        appBar: AppBar(title: Text("Stateful")),
        body: Container(color: Colors.white)
      )
    );
  }
  
  @override 
  void dispose() {
    print("${TAG}dispose()");
  }
  
  void _dump() {
    print("\t$context");
  }
}