✨ feat: 优化列表渲染

src/components/MusicList.vue

@@ -10,77 +10,69 @@
   >
     <div class="music-page">
       <div class="music-close">
-        <i class="icon ri-layout-column-line" @click="doubleDisply = !doubleDisply"></i>
         <i class="icon iconfont icon-icon_error" @click="close"></i>
       </div>
       <div class="music-title text-el">{{ name }}</div>
       <!-- 歌单歌曲列表 -->
-      <div class="music-list">
-        <n-scrollbar @scroll="handleScroll">
-          <div
-            v-loading="loading || !songList.length"
-            class="music-list-content"
-            :class="{ 'double-list': doubleDisply }"
-          >
-            <div
-              v-for="(item, index) in displayedSongs"
-              :key="item.id"
-              class="double-item"
-              :class="setAnimationClass('animate__bounceInUp')"
-              :style="setAnimationDelay(index, 5)"
-            >
-              <song-item :item="formatDetail(item)" @play="handlePlay" />
-            </div>
-            <div v-if="isLoadingMore" class="loading-more">加载更多...</div>
-          </div>
-          <play-bottom />
-        </n-scrollbar>
-
-        <!-- <n-virtual-list :item-size="42" :items="displayedSongs" item-resizable @scroll="handleScroll">
-          <template #default="{ item, index }">
-            <div :key="item.id" class="double-item">
-              <song-item :item="formatDetail(item)" @play="handlePlay" />
-            </div>
+      <div v-loading="loading" class="music-list">
+        <n-virtual-list
+          v-if="displayedSongs.length"
+          ref="virtualListRef"
+          :items="displayedSongs"
+          :item-size="60"
+          :keep-alive="true"
+          :min-size="5"
+          :style="{ height: listHeight }"
+          @scroll="handleScroll"
+        >
+          <template #default="{ item }">
+            <song-item :item="formatDetail(item)" @play="handlePlay" />
           </template>
         </n-virtual-list>
-        <play-bottom /> -->
+        <div v-else-if="loading" class="loading-more">加载中...</div>
+        <play-bottom />
       </div>
     </div>
   </n-drawer>
 </template>
 
 <script setup lang="ts">
+// 导入 NVirtualListInst 类型
+import type { VirtualListInst } from 'naive-ui';
 import { useStore } from 'vuex';
 
 import { getMusicDetail } from '@/api/music';
 import SongItem from '@/components/common/SongItem.vue';
-import { isMobile, setAnimationClass, setAnimationDelay } from '@/utils';
+import { isMobile } from '@/utils';
 
 import PlayBottom from './common/PlayBottom.vue';
 
 const store = useStore();
 
-const {
-  songList,
-  loading = false,
-  listInfo,
-} = defineProps<{
+const props = defineProps<{
   show: boolean;
   name: string;
   songList: any[];
   loading?: boolean;
-  listInfo?: any;
+  listInfo?: {
+    trackIds: { id: number }[];
+    [key: string]: any;
+  };
 }>();
 const emit = defineEmits(['update:show', 'update:loading']);
 
 const page = ref(0);
 const pageSize = 20;
-const total = ref(0);
 const isLoadingMore = ref(false);
 const displayedSongs = ref<any[]>([]);
 
-// 双排显示开关
-const doubleDisply = ref(false);
+// 计算总数
+const total = computed(() => {
+  if (props.listInfo?.trackIds) {
+    return props.listInfo.trackIds.length;
+  }
+  return props.songList.length;
+});
 
 const formatDetail = computed(() => (detail: any) => {
   const song = {
@@ -95,7 +87,7 @@ const formatDetail = computed(() => (detail: any) => {
 });
 
 const handlePlay = () => {
-  const tracks = songList || [];
+  const tracks = props.songList || [];
   store.commit(
     'setPlayList',
     tracks.map((item) => ({
@@ -112,40 +104,70 @@ const close = () => {
   emit('update:show', false);
 };
 
+// 优化加载更多歌曲的函数
 const loadMoreSongs = async () => {
-  if (displayedSongs.value.length >= total.value) return;
+  if (isLoadingMore.value || displayedSongs.value.length >= total.value) return;
 
   isLoadingMore.value = true;
   try {
-    const trackIds = listInfo.trackIds
-      .slice(page.value * pageSize, (page.value + 1) * pageSize)
-      .map((item: any) => item.id);
-    const reslist = await getMusicDetail(trackIds);
-    // displayedSongs.value = displayedSongs.value.concat(reslist.data.songs);
-    displayedSongs.value = JSON.parse(JSON.stringify([...displayedSongs.value, ...reslist.data.songs]));
-    page.value++;
+    if (props.listInfo?.trackIds) {
+      // 如果有 trackIds，需要分批请求歌曲详情
+      const start = page.value * pageSize;
+      const end = Math.min((page.value + 1) * pageSize, total.value);
+      const trackIds = props.listInfo.trackIds.slice(start, end).map((item) => item.id);
+
+      if (trackIds.length > 0) {
+        const { data } = await getMusicDetail(trackIds);
+        displayedSongs.value = [...displayedSongs.value, ...data.songs];
+        page.value++;
+      }
+    } else {
+      // 如果没有 trackIds，直接使用 songList 分页
+      const start = page.value * pageSize;
+      const end = Math.min((page.value + 1) * pageSize, props.songList.length);
+      const newSongs = props.songList.slice(start, end);
+      displayedSongs.value = [...displayedSongs.value, ...newSongs];
+      page.value++;
+    }
   } catch (error) {
-    console.error('error', error);
+    console.error('加载歌曲失败:', error);
   } finally {
     isLoadingMore.value = false;
   }
 };
 
-const handleScroll = (e: any) => {
-  const { scrollTop, scrollHeight, clientHeight } = e.target;
-  if (scrollTop + clientHeight >= scrollHeight - 50 && !isLoadingMore.value) {
+// 添加虚拟列表的引用
+const virtualListRef = ref<VirtualListInst | null>(null);
+
+// 修改滚动处理函数
+const handleScroll = (e: Event) => {
+  const target = e.target as HTMLElement;
+  if (!target) return;
+
+  const { scrollTop, scrollHeight, clientHeight } = target;
+  if (scrollHeight - scrollTop - clientHeight < 100 && !isLoadingMore.value) {
     loadMoreSongs();
   }
 };
 
+// 监听 songList 变化，重置分页状态
 watch(
-  () => songList,
+  () => props.songList,
   (newSongs) => {
-    displayedSongs.value = JSON.parse(JSON.stringify(newSongs));
-    total.value = listInfo ? listInfo.trackIds.length : displayedSongs.value.length;
+    page.value = 0;
+    displayedSongs.value = newSongs.slice(0, pageSize);
+    if (newSongs.length > pageSize) {
+      page.value = 1;
+    }
   },
-  { deep: true, immediate: true },
+  { immediate: true },
 );
+
+// 添加计算属性来处理列表高度
+const listHeight = computed(() => {
+  const baseHeight = '100%'; // 减去标题高度
+  return store.state.isPlay ? `calc(100% - 90px)` : baseHeight; // 112px 是 PlayBottom 的高度
+});
 </script>
 
 <style scoped lang="scss">
@@ -168,9 +190,13 @@ watch(
 
   &-list {
     height: calc(100% - 60px);
+    position: relative; // 添加相对定位
 
-    &-content {
-      min-height: 400px;
+    :deep(.n-virtual-list__scroll) {
+      scrollbar-width: none;
+      &::-webkit-scrollbar {
+        display: none;
+      }
     }
   }
 }
@@ -186,14 +212,20 @@ watch(
 }
 
 .double-list {
-  @apply flex flex-wrap gap-5;
-
   .double-item {
-    width: calc(50% - 10px);
+    width: 100%;
   }
 
   .song-item {
     background-color: #191919;
   }
 }
+
+// 确保 PlayBottom 不会影响滚动区域
+:deep(.bottom) {
+  position: absolute;
+  bottom: 0;
+  left: 0;
+  right: 0;
+}
 </style>

src/main.ts

@@ -15,7 +15,7 @@ import directives from './directive';
 const app = createApp(App);
 
 Object.keys(directives).forEach((key: string) => {
-  app.directive(key, directives[key]);
+  app.directive(key, directives[key as keyof typeof directives]);
 });
 app.use(router);
 app.use(store);

src/views/list/index.vue

@@ -96,7 +96,7 @@ const handleScroll = (e: any) => {
 // 监听窗口大小变化，调整每行显示数量
 const updateItemsPerRow = () => {
   const width = window.innerWidth;
-  if (width > 1800) ITEMS_PER_ROW.value = 10;
+  if (width > 1800) ITEMS_PER_ROW.value = 8;
   else if (width > 1200) ITEMS_PER_ROW.value = 8;
   else if (width > 768) ITEMS_PER_ROW.value = 6;
   else ITEMS_PER_ROW.value = 5;

src/views/user/index.vue

@@ -57,12 +57,18 @@ onActivated(() => {
 
 const isShowList = ref(false);
 const list = ref<Playlist>();
+const listLoading = ref(false);
 // 展示歌单
-const showPlaylist = async (id: number) => {
+const showPlaylist = async (id: number, name: string) => {
   isShowList.value = true;
-  list.value = {};
+  listLoading.value = true;
+
+  list.value = {
+    name,
+  } as Playlist;
   const { data } = await getListDetail(id);
   list.value = data.playlist;
+  listLoading.value = false;
 };
 
 const handlePlay = () => {
@@ -103,7 +109,12 @@ const handlePlay = () => {
         <div class="play-list" :class="setAnimationClass('animate__fadeInLeft')">
           <div class="title">创建的歌单</div>
           <n-scrollbar>
-            <div v-for="(item, index) in playList" :key="index" class="play-list-item" @click="showPlaylist(item.id)">
+            <div
+              v-for="(item, index) in playList"
+              :key="index"
+              class="play-list-item"
+              @click="showPlaylist(item.id, item.name)"
+            >
               <n-image :src="getImgUrl(item.coverImgUrl, '50y50')" class="play-list-item-img" lazy preview-disabled />
               <div class="play-list-item-info">
                 <div class="play-list-item-name">{{ item.name }}</div>
@@ -133,7 +144,13 @@ const handlePlay = () => {
         </n-scrollbar>
       </div>
     </div>
-    <music-list v-model:show="isShowList" :name="list?.name || ''" :song-list="list?.tracks || []" :list-info="list" />
+    <music-list
+      v-model:show="isShowList"
+      :name="list?.name || ''"
+      :song-list="list?.tracks || []"
+      :list-info="list"
+      :loading="listLoading"
+    />
   </div>
 </template>