need_resume 1.0.1

A package to implement onResume (Android)/viewDidAppear (iOS) functionality on Stateful widget.

Need Resume

Need Resume is a package to implement onResume (Android)/viewDidAppear (iOS) functionality on Stateful widget.

Quick Usage

Add with NeedResume to your State<MyWidget> class and then implement the void onResume() abstract method. Call prepareResume() inside your build() method and call needResume() after you push another screen.

Installation

Add this to your package's pubspec.yaml file:

dependencies:
  need_resume: ^1.0.1

Example

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

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

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return new MaterialApp(
      title: 'My Application',
      home: new HomeScreen()
    );
  }
}

class HomeScreen extends StatefulWidget {
  @override
  HomeScreenState createState() => new HomeScreenState();
}

class HomeScreenState extends State<HomeScreen> with NeedResume {
  @override
  Widget build(BuildContext context) {
    prepareResume();

    return new Scaffold(
      body: Center(
        child: RaisedButton(
          child: Text('Go to Another Screen'),
          onPressed: () {
            goAnotherScreen();
          },
        ),
      ),
    );
  }

  @override
  void onResume() {
    // Write your code here
    print('HomeScreen is resumed!');
  }

  void goAnotherScreen() async {
    await Navigator.push(context, MaterialPageRoute(builder: (context) => AnotherScreen()));
    needResume();
  }
}

class AnotherScreen extends StatefulWidget {
  @override
  AnotherScreenState createState() => new AnotherScreenState();
}

class AnotherScreenState extends State<AnotherScreen> {
  @override
  Widget build(BuildContext context) {
    return new Scaffold(
      body: Center(
        child: RaisedButton(
          child: Text('Back'),
          onPressed: () {
            goBack();
          },
        ),
      ),
    );
  }

  void goBack() async {
    await Navigator.pop(context);
  }
}