location2025/lib/module/news/news_page.dart

import 'dart:ui';

import 'package:flutter/src/widgets/framework.dart';
import 'package:flutter/widgets.dart';
import 'package:flutter_screenutil/flutter_screenutil.dart';
import 'package:get/get.dart';
import 'package:get/get_core/src/get_main.dart';
import 'package:location/base/base_page.dart';
import 'package:location/data/bean/message_info.dart';
import 'package:location/utils/common_expand.dart';
import '../../resource/assets.gen.dart';
import '../../resource/colors.gen.dart';
import '../../resource/string.gen.dart';
import '../../router/app_pages.dart';
import '../../widget/common_view.dart';
import 'news_controller.dart';
import 'news_list_item.dart';

class NewsPage extends BasePage<NewsController> {
  const NewsPage({super.key});

  static void start() {
    Get.toNamed(RoutePath.news);
  }

  @override
  bool immersive() {
    return true;
  }

  @override
  Widget buildBody(BuildContext context) {
    return Stack(
      children: [
        Assets.images.bgPageBackground.image(width: double.infinity),
        Positioned(
            top: 24.w,
            right: 19.w,
            child: SafeArea(child: Obx(() {
              return Opacity(
                  opacity: 1 - controller.opacity,
                  child: Assets.images.iconNews.image(width: 118.w));
            }))),
        SafeArea(
          child: Column(
            children: [
              buildHeadView(),
              Expanded(
                  child: CustomScrollView(
                controller: controller.scrollController,
                slivers: [
                  buildSliverTitle(),
                  buildSliverWaiting(),
                  Obx(() {
                    return SliverList.builder(
                        itemBuilder: buildNewsItem,
                        itemCount: controller.messageList.length);
                  })
                ],
              ))
            ],
          ),
        )
      ],
    );
  }

  SliverToBoxAdapter buildSliverTitle() {
    return SliverToBoxAdapter(
        child: Column(
      crossAxisAlignment: CrossAxisAlignment.start,
      children: [
        SizedBox(height: 18.w),
        Padding(
          padding: EdgeInsets.only(left: 12.w),
          child: Text(StringName.newsTitle,
              style: TextStyle(
                  fontSize: 16.sp,
                  color: ColorName.black90,
                  fontWeight: FontWeight.bold)),
        ),
        SizedBox(height: 10.w),
      ],
    ));
  }

  Widget buildHeadView() {
    return Container(
      margin: EdgeInsets.symmetric(horizontal: 12.w, vertical: 14.w),
      child: Row(
        crossAxisAlignment: CrossAxisAlignment.center,
        mainAxisAlignment: MainAxisAlignment.spaceBetween,
        children: [
          GestureDetector(
              onTap: controller.back, child: CommonView.getBackBtnView()),
          Obx(() {
            return Opacity(
              opacity: controller.opacity,
              child: Text(StringName.newsTitle,
                  style: TextStyle(
                      fontSize: 16.sp,
                      color: ColorName.black90,
                      fontWeight: FontWeight.bold)),
            );
          }),
          GestureDetector(
              onTap: controller.newsClick,
              child:
                  Assets.images.iconFriendNews.image(width: 24.w, height: 24.w))
        ],
      ),
    );
  }

  SliverToBoxAdapter buildSliverWaiting() {
    return SliverToBoxAdapter(child: Obx(() {
      if (controller.waitingNewsCount == 0) {
        return SizedBox.shrink();
      }
      return buildMessageItem(Assets.images.iconNewsItem.provider(),
          title: StringName.newsRequestTitle,
          content: StringName.newsRequestDesc,
          contentTextStyle:
              TextStyle(fontSize: 12.sp, color: ColorName.black60),
          createTime: controller.latestFriendRequest?.createTime ?? 0,
          statusWidget: Container(
            height: 16.w,
            constraints: BoxConstraints(
              minWidth: 16.w,
            ),
            padding: EdgeInsets.symmetric(horizontal: 2.w),
            decoration: BoxDecoration(
              color: '#FF333D'.color,
              borderRadius: BorderRadius.circular(100),
            ),
            child: Center(
              child: Text('${controller.waitingNewsCount}',
                  textAlign: TextAlign.center,
                  style: TextStyle(
                      fontSize: 10.sp, color: ColorName.white, height: 1)),
            ),
          ));
    }));
  }

  Widget buildNewsItem(BuildContext context, int index) {
    final item = controller.messageList[index];
    return buildMessageInfoItem(
        item, (info) => controller.onMessageFunClick(info));
  }
}