justMusic/Sources/justMUSIC/lib/screens/post_screen.dart

import 'dart:ui';
import 'package:flutter/Material.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:justmusic/components/back_button.dart';
import 'package:justmusic/screens/search_song_screen.dart';
import '../components/editable_post_component.dart';
import '../components/post_button_component.dart';
import '../values/constants.dart';

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

  @override
  State<PostScreen> createState() => _PostScreenState();
}

class _PostScreenState extends State<PostScreen>
    with SingleTickerProviderStateMixin {
  final scrollController = ScrollController();
  late AnimationController _controller;
  late Animation<double> _animation;

  @override
  void initState() {
    _controller = AnimationController(
      vsync: this,
      duration: const Duration(milliseconds: 400),
    );

    _animation = Tween<double>(begin: 0.0, end: 400.0).animate(
      CurvedAnimation(
        parent: _controller,
        curve: Curves.easeOut,
      ),
    );
    super.initState();
  }

  void openDetailPost() {
    showModalBottomSheet(
      transitionAnimationController: _controller,
      barrierColor: Colors.black.withOpacity(0.7),
      backgroundColor: Colors.transparent,
      elevation: 1,
      constraints: const BoxConstraints(
        maxWidth: 600,
      ),
      isScrollControlled: true,
      context: context,
      shape: const RoundedRectangleBorder(
          borderRadius: BorderRadius.only(
              topLeft: Radius.circular(20), topRight: Radius.circular(20))),
      builder: ((context) {
        return const ClipRRect(
            borderRadius: BorderRadius.only(
                topLeft: Radius.circular(20), topRight: Radius.circular(20)),
            child: SearchSongScreen());
      }),
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      resizeToAvoidBottomInset: true,
      backgroundColor: bgColor,
      extendBodyBehindAppBar: true,
      appBar: PreferredSize(
        preferredSize: Size(double.infinity, 80),
        child: SafeArea(
          child: Padding(
            padding: const EdgeInsets.only(
                left: defaultPadding,
                right: defaultPadding,
                top: defaultPadding),
            child: Row(
              children: [BackButtonComponent()],
            ),
          ),
        ),
      ),
      body: Container(
        padding:
            const EdgeInsets.only(left: defaultPadding, right: defaultPadding),
        width: double.infinity,
        height: double.infinity,
        decoration: const BoxDecoration(
          image: DecorationImage(
            image: AssetImage("assets/images/background_justMusic.png"),
            fit: BoxFit.cover,
          ),
        ),
        child: Stack(
          alignment: Alignment.topCenter,
          children: [
            ScrollConfiguration(
              behavior: ScrollBehavior().copyWith(scrollbars: false),
              child: SingleChildScrollView(
                controller: scrollController,
                child: Column(
                  mainAxisAlignment: MainAxisAlignment.end,
                  children: [
                    SizedBox(
                      height: 100.h,
                    ),
                    GestureDetector(
                      onTap: openDetailPost,
                      child: EditablePostComponent(),
                    ),
                    SizedBox(
                      height: 40.h,
                    ),
                    PostButtonComponent(),
                    SizedBox(
                      height: 40.h,
                    ),
                  ],
                ),
              ),
            ),
          ],
        ),
      ),
    );
  }
}