Teso_Mobile/lib/Pages/notifications.dart

import 'package:flutter/material.dart';
import 'PageWidgets/Alerts/header.dart';
import 'Sub_Pages/Notifications/Alerts.dart';
import 'Sub_Pages/Notifications/Inbox.dart';
import 'package:teso/providers/user_provider.dart';
import 'package:provider/provider.dart';
import 'package:teso/Classes/TesoUser.dart';

class Notifications extends StatefulWidget {
  @override
  _NotificationsState createState() => _NotificationsState();
}

class _NotificationsState extends State<Notifications> {
  // ignore: avoid_init_to_null
  Color fcurrentColor = null;
  Color fTextColor1 = Colors.white;
  Color fcurrentColor1;
  Color fTextColor2;
  int _page = 0;
  PageController _pageController;
  bool chats = false;

  @override
  void initState() {
    super.initState();
    _pageController = PageController(initialPage: _page);
    fTextColor1 = Colors.white;
    fTextColor2 = Colors.grey;
    //setColor();
  }

  void setColor() {
    setState(() {
      fcurrentColor = Theme.of(context).colorScheme.secondary;
      fTextColor1 = Colors.white;
    });
  }

  void navigationTapped(int page) {
    _pageController.animateToPage(
      page,
      duration: const Duration(milliseconds: 500),
      curve: Curves.easeInOut,
    );
    switch (page) {
      case 0:
        setState(() {
          fcurrentColor = Theme.of(context).colorScheme.secondary;
          fTextColor1 = Colors.white;
          fcurrentColor1 = Theme.of(context).primaryColor;
          fTextColor2 = Colors.grey;
          chats = false;
        });
        break;
      case 1:
        setState(() {
          fcurrentColor1 = Theme.of(context).colorScheme.secondary;
          fTextColor1 = Colors.grey;
          fcurrentColor = Theme.of(context).primaryColor;
          fTextColor2 = Colors.white;
          chats = true;
        });
        break;
    }
  }

  void onPageChanged(int page) {
    setState(() {
      this._page = page;
    });
    switch (page) {
      case 0:
        setState(() {
          fcurrentColor = Theme.of(context).colorScheme.secondary;
          fTextColor1 = Colors.white;
          fcurrentColor1 = Theme.of(context).primaryColor;
          fTextColor2 = Colors.grey;
          chats = false;
        });
        break;
      case 1:
        setState(() {
          fcurrentColor1 = Theme.of(context).colorScheme.secondary;
          fTextColor1 = Colors.grey;
          fcurrentColor = Theme.of(context).primaryColor;
          fTextColor2 = Colors.white;
          chats = true;
        });
        break;
    }
  }

  @override
  void dispose() {
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    TesoUser user =
        Provider.of<UserProvider>(context, listen: false).currentUser;
    return Scaffold(
      appBar: PreferredSize(
          child: AppBar(
            backgroundColor: Theme.of(context).primaryColor,
            title: buildNotficationHeader(
                context,
                fcurrentColor,
                fcurrentColor1,
                fTextColor1,
                fTextColor2,
                navigationTapped,
                chats,
                user),
          ),
          preferredSize: Size.fromHeight(50)),
      body: PageView(
        //physics:,
        controller: _pageController,
        onPageChanged: onPageChanged,
        children: <Widget>[
          Alerts(),
          Inbox(
            user: user,
          ),
        ],
      ),
    );
  }
}