136 lines
3.8 KiB
Dart
136 lines
3.8 KiB
Dart
import 'dart:async';
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import 'dart:convert';
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import 'package:easy_refresh/easy_refresh.dart';
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import 'package:flutter/cupertino.dart';
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import 'package:flutter/material.dart';
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import 'package:get/get.dart';
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import 'package:wallpaperx/common/components/view_state_widget.dart';
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import 'package:wallpaperx/common/http/http_util.dart';
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import 'package:wallpaperx/common/http/url.dart';
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import 'package:wallpaperx/common/utils/shared_util.dart';
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import 'package:wallpaperx/entity/image_model.dart';
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import 'package:wallpaperx/page/home/home_controller.dart';
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import 'package:wallpaperx/routes/app_pages.dart';
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class RecommendController extends GetxController {
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static RecommendController get to => Get.find<RecommendController>();
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late final EasyRefreshController refreshController;
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late ScrollController scrollController;
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HomeController homeController = Get.find<HomeController>();
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Rx<ViewState> viewState = ViewState.loading.obs;
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RxList banners = [].obs;
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RxList images = [].obs;
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RxInt index = 0.obs;
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/// 页码、每页数量
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int skip = 0;
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int limit = 20;
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Timer? _timer;
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@override
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void onInit() {
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super.onInit();
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scrollController = ScrollController();
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refreshController = EasyRefreshController(controlFinishLoad: true);
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getImages(showLoading: false);
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}
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/// 停止定时器
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void _stopTimer() {
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_timer?.cancel();
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_timer = null;
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}
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@override
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void onClose() {
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super.onClose();
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refreshController.dispose();
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}
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/// PageView页面改变回调
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void onIndexChanged(int index) {
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this.index.value = index;
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update(["discover_background"]);
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}
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void getImages({bool? showLoading}) {
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List<String> tags = UPCache.getInstance().getStringList("labelSettingList");
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HttpUtil.get(
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Url.getImages,
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(callback) async {
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if (callback != null) {
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dynamic res = json.decode(callback);
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refreshController.finishLoad();
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if (res["images"] != null) {
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List list = List.from(res["images"]);
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images.addAll(list.map((e) => ImageModel.fromJson(e)).toList());
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list = (list..shuffle()).take(5).toList();
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banners.addAll(list.map((e) => ImageModel.fromJson(e)).toList());
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viewState = ViewState.normal.obs;
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update(["discover_background"]);
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} else {
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viewState = ViewState.empty.obs;
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}
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_stopTimer();
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}
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},
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showLoading: showLoading,
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errorCallback: (e) {
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_timer ??= Timer.periodic(const Duration(seconds: 2), (Timer t) {
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getImages(showLoading: false);
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});
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},
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params: {"limit": limit, "skip": skip, "tags": tags.join(",")},
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);
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}
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/// 上拉加载
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void onLoad() {
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skip += limit;
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List<String> tags = UPCache.getInstance().getStringList("labelSettingList");
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HttpUtil.get(
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Url.getImages,
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(callback) async {
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if (callback != null) {
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dynamic res = json.decode(callback);
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refreshController.finishLoad();
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if (res["images"] != null) {
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List list = List.from(res["images"]);
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images.addAll(list.map((e) => ImageModel.fromJson(e)).toList());
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}
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}
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},
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showLoading: false,
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errorCallback: (e) {
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refreshController.finishLoad();
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},
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params: {"limit": limit, "skip": skip, "tags": tags.join(",")},
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);
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}
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/// 点击壁纸
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void swiperToImageDetail({String? position}) {
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Get.toNamed(AppPages.wallpaperDetail, arguments: {
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'position': index.value,
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'wallpaperList': banners,
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});
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}
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/// 点击壁纸
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void gridToImageDetail(int index, {String? position}) {
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Get.toNamed(AppPages.wallpaperDetail, arguments: {
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'position': index,
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'wallpaperList': images,
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});
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}
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/// 跳转搜索
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void toSearch() {
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Get.toNamed(AppPages.searchImage);
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}
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}
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