PokeDex/lib/filters.dart

import 'package:flutter/material.dart';
import 'package:flutter/widgets.dart';
import 'package:libacflutter/Constants.dart';
import 'package:pokedex/Session.dart';

class FilterPage extends StatefulWidget {
  @override
  State<StatefulWidget> createState() {
    return _filterPage();
  }
}

class _filterPage extends State<FilterPage> {
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text("PokeDex - Filters"),
        backgroundColor:
            SessionData.darkMode
                ? LibACFlutterConstants.TITLEBAR_COLOR
                : Colors.cyan,
      ),
      body: Padding(
        padding: EdgeInsets.all(8),
        child: SingleChildScrollView(
          child: Column(
            children: [
              Text(
                "The PokeDex's filters will allow you to customize what Generations are shown in the app.\n\n** WARNING **\nThis will prevent evolutions from showing up if the Pokemon resides in a future generation.\n\nThe dex entries will also not show the evolution conditions, or catch conditions for disabled generations.",
                style: TextStyle(fontSize: 24),
              ),
              SwitchListTile(
                value: (SessionData.highest >= 1),
                title: Text("Generation 1"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 1;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 2),
                title: Text("Generation 2"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 2;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 3),
                title: Text("Generation 3"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 3;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 4),
                title: Text("Generation 4"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 4;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 5),
                title: Text("Generation 5"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 5;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 6),
                title: Text("Generation 6"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 6;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 7),
                title: Text("Generation 7"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 7;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 8),
                title: Text("Generation 8"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 8;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
              SwitchListTile(
                value: (SessionData.highest >= 9),
                title: Text("Generation 9"),

                onChanged: (val) {
                  setState(() {
                    SessionData.highest = 9;
                    SessionData.resetHighestGenCache();
                  });
                },
              ),
            ],
          ),
        ),
      ),
    );
  }
}