feat: 直播列表

lib/pages/live/view.dart

@@ -0,0 +1,149 @@
+import 'package:flutter/material.dart';
+import 'package:get/get.dart';
+import 'package:pilipala/common/constants.dart';
+import 'package:pilipala/common/skeleton/video_card_v.dart';
+import 'package:pilipala/common/widgets/animated_dialog.dart';
+import 'package:pilipala/common/widgets/http_error.dart';
+import 'package:pilipala/common/widgets/overlay_pop.dart';
+
+import 'controller.dart';
+import 'widgets/live_item.dart';
+
+class LivePage extends StatefulWidget {
+  const LivePage({super.key});
+
+  @override
+  State<LivePage> createState() => _LivePageState();
+}
+
+class _LivePageState extends State<LivePage> {
+  final LiveController _liveController = Get.put(LiveController());
+
+  @override
+  bool get wantKeepAlive => true;
+
+  @override
+  void initState() {
+    super.initState();
+    _liveController.scrollController.addListener(
+      () {
+        if (_liveController.scrollController.position.pixels >=
+            _liveController.scrollController.position.maxScrollExtent - 200) {
+          if (!_liveController.isLoadingMore) {
+            _liveController.isLoadingMore = true;
+            _liveController.onLoad();
+          }
+        }
+      },
+    );
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return RefreshIndicator(
+      onRefresh: () async {
+        return await _liveController.onRefresh();
+      },
+      child: CustomScrollView(
+        controller: _liveController.scrollController,
+        slivers: [
+          SliverPadding(
+            // 单列布局 EdgeInsets.zero
+            padding: const EdgeInsets.fromLTRB(
+                StyleString.cardSpace, 0, StyleString.cardSpace, 8),
+            sliver: FutureBuilder(
+              future: _liveController.queryLiveList('init'),
+              builder: (context, snapshot) {
+                if (snapshot.connectionState == ConnectionState.done) {
+                  Map data = snapshot.data as Map;
+                  if (data['status']) {
+                    return Obx(() =>
+                        contentGrid(_liveController, _liveController.liveList));
+                  } else {
+                    return HttpError(
+                      errMsg: data['msg'],
+                      fn: () => {},
+                    );
+                  }
+                } else {
+                  // 缓存数据
+                  if (_liveController.liveList.length > 1) {
+                    return contentGrid(
+                        _liveController, _liveController.liveList);
+                  }
+                  // 骨架屏
+                  else {
+                    return contentGrid(_liveController, []);
+                  }
+                }
+              },
+            ),
+          ),
+          const LoadingMore()
+        ],
+      ),
+    );
+  }
+
+  OverlayEntry _createPopupDialog(liveItem) {
+    return OverlayEntry(
+      builder: (context) => AnimatedDialog(
+        child: OverlayPop(videoItem: liveItem),
+      ),
+    );
+  }
+
+  Widget contentGrid(ctr, liveList) {
+    return SliverGrid(
+      gridDelegate: SliverGridDelegateWithFixedCrossAxisCount(
+        // 行间距
+        mainAxisSpacing: StyleString.cardSpace,
+        // 列间距
+        crossAxisSpacing: StyleString.cardSpace,
+        // 列数
+        crossAxisCount: ctr.crossAxisCount,
+        mainAxisExtent:
+            Get.size.width / ctr.crossAxisCount / StyleString.aspectRatio + 70,
+      ),
+      delegate: SliverChildBuilderDelegate(
+        (BuildContext context, int index) {
+          return liveList!.isNotEmpty
+              ? LiveCardV(
+                  liveItem: liveList[index],
+                  longPress: () {
+                    _liveController.popupDialog =
+                        _createPopupDialog(liveList[index]);
+                    Overlay.of(context).insert(_liveController.popupDialog!);
+                  },
+                  longPressEnd: () {
+                    _liveController.popupDialog?.remove();
+                  },
+                )
+              : const VideoCardVSkeleton();
+        },
+        childCount: liveList!.isNotEmpty ? liveList!.length : 10,
+      ),
+    );
+  }
+}
+
+class LoadingMore extends StatelessWidget {
+  const LoadingMore({super.key});
+
+  @override
+  Widget build(BuildContext context) {
+    return SliverToBoxAdapter(
+      child: Container(
+        height: MediaQuery.of(context).padding.bottom + 80,
+        padding: EdgeInsets.only(bottom: MediaQuery.of(context).padding.bottom),
+        child: Center(
+          child: Text(
+            '加载中...',
+            style: TextStyle(
+                color: Theme.of(context).colorScheme.outline, fontSize: 13),
+          ),
+        ),
+      ),
+    );
+  }
+}