gopeed/ui/flutter/lib/app/modules/task/views/task_view.dart

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

import '../controllers/task_controller.dart';
import '../controllers/task_downloaded_controller.dart';
import '../controllers/task_downloading_controller.dart';
import 'task_downloaded_view.dart';
import 'task_downloading_view.dart';

class TaskView extends GetView<TaskController> {
  const TaskView({Key? key}) : super(key: key);

  @override
  Widget build(BuildContext context) {
    return DefaultTabController(
      length: 2,
      child: Scaffold(
        appBar: PreferredSize(
            preferredSize: const Size.fromHeight(56),
            child: AppBar(
              bottom: TabBar(
                tabs: const [
                  Tab(
                    icon: Icon(Icons.file_download),
                  ),
                  Tab(
                    icon: Icon(Icons.done),
                  ),
                ],
                onTap: (index) {
                  if (controller.tabIndex.value != index) {
                    controller.tabIndex.value = index;
                    final downloadingController =
                        Get.find<TaskDownloadingController>();
                    final downloadedController =
                        Get.find<TaskDownloadedController>();
                    switch (index) {
                      case 0:
                        downloadingController.start();
                        downloadedController.stop();
                        break;
                      case 1:
                        downloadingController.stop();
                        downloadedController.start();
                        break;
                    }
                  }
                },
              ),
            )),
        body: const TabBarView(
          children: [
            TaskDownloadingView(),
            TaskDownloadedView(),
          ],
        ),
      ),
    );
  }
}