Teso_Mobile/lib/Pages/firsttimer.dart

import 'package:flutter/material.dart';
import 'package:teso/util/SizeConfig.dart';

class FirstTimeIntro extends StatefulWidget {
  const FirstTimeIntro({Key key}) : super(key: key);

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

class _FirstTimeIntroState extends State<FirstTimeIntro> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      backgroundColor: Colors.transparent,
      extendBodyBehindAppBar: false,
      appBar: AppBar(
        automaticallyImplyLeading: false,
        toolbarHeight: 05,
        backgroundColor: Colors.transparent,
      ),
      body: GestureDetector(
        onPanUpdate: (details) {
          // Swiping in right direction.
          if (details.delta.dx > 0) {
            Navigator.pop(context, 0);
          }

          // Swiping in left direction.
          if (details.delta.dx < 0) {
            Navigator.pop(context, 2);
          }
        },
        onTap: () => Navigator.pop(context, 1),
        child: Container(
          width: SizeConfig.blockSizeHorizontal * 100,
          height: SizeConfig.blockSizeVertical * 100,
          child: Image.asset(
            "assets/images/firstTime.png",
            fit: BoxFit.fitHeight,
          ),
        ),
      ),
    );
  }
}