GetStorage & Email Validation

main.dart

import 'package:flutter/material.dart';
import 'package:get/get.dart';
import 'package:get_storage/get_storage.dart';

Future<void> main() async {
  await GetStorage.init(); // Initialize storage driver
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  var emailEditingController = TextEditingController();
  var storage = GetStorage();



  @override
  Widget build(BuildContext context) {



    // TODO: implement build
    return GetMaterialApp(
      title: "GetStorage & Email Validation",
      home: Scaffold(
        appBar: AppBar(title: Text("GetStorage & Email Validation")),
        body: Center(
          child: Column(
            mainAxisAlignment: MainAxisAlignment.center,
            crossAxisAlignment: CrossAxisAlignment.center,
            children: [
              Padding(
                  padding: EdgeInsets.all(16.0),
                  child: TextField(
                    controller: emailEditingController,
                  )),
              SizedBox(
                height: 8,
              ),
              Padding(
                padding: EdgeInsets.all(16.0),
                child: RaisedButton(
                  child: Text("Write"),
                  onPressed: () {
                    if (GetUtils.isEmail(emailEditingController.text)) {
                      storage.write("email",
                          emailEditingController.text);

                    } else {
                      Get.snackbar(
                          "InCorrect Email", "Provide Email in valid format",
                          colorText: Colors.white,
                          backgroundColor: Colors.red,
                          snackPosition: SnackPosition.BOTTOM);
                    }
                  },
                ),
              ),
              SizedBox(
                height: 8,
              ),
              RaisedButton(
                child: Text('Read'),
                onPressed: (){
                 print("The Email is ${storage.read("email")}");
                },
              )
            ],
          ),
        ),
      ),
    );
  }
}

/* It is used for persistent key/value storage
Can store String, int, double, Map and List

 // To listen for changes
  // var listen= storage.listen(() {print("Email Changed");});
    //when subscribed to listen event it should be disposed by using
   // storage.removeListen(listen);
    //To listen for changes in key
    // storage.listenKey('email', (value){
    //   print('new key is $value');
    // });

    //Remove a key
    storage.remove('email);

    //erase the container
    storage.erase();

    //create container with a name
    GetStorage g = GetStorage('MyStorage');
    await GetStorage.init('MyStorage'); // initialize

* */