feat(index): 添加设备按钮改为右下角圆形加号悬浮按钮

api/scene.js

@@ -0,0 +1,23 @@
+import request from '@/api/http/client'
+
+// 后端就绪后置为 false 即可恢复真实请求。
+const USE_MOCK = true
+
+// 模拟场景列表数据（后端 /scene/list 就绪后删除）。
+const MOCK_SCENES = [
+  { id: 1, name: '家里' },
+  { id: 2, name: '养老院' },
+  { id: 3, name: '社区中心' }
+]
+
+/**
+ * 获取场景列表。
+ * 约定：data 为数组，每项至少含 { id, name }，多余字段不影响前端。
+ */
+export function getSceneList() {
+  if (USE_MOCK) {
+    // 模拟网络延迟，让 loading 态可见。
+    return new Promise((resolve) => setTimeout(() => resolve(MOCK_SCENES), 500))
+  }
+  return request.get('/scene/list')
+}

constants/routes.js

@@ -7,7 +7,8 @@ export const ROUTES = Object.freeze({
   EVENT: '/pages/event/index',
   MINE: '/pages/mine/index',
   DEVICE_ADD: '/pages/device/add',
-  DEVICE_CONFIG: '/pages/device/config'
+  DEVICE_CONFIG: '/pages/device/config',
+  SCENE_SELECT: '/pages/scene/select'
 })
 
 /**

pages.json

@@ -35,6 +35,12 @@
       "style": {
         "navigationStyle": "custom"
       }
+    },
+    {
+      "path": "pages/scene/select",
+      "style": {
+        "navigationStyle": "custom"
+      }
     }
   ],
   "globalStyle": {

pages/index/index.vue

@@ -21,10 +21,10 @@
       @click="goConfig"
     />
 
-    <view class="site-row" @click="goConfig">
+    <view class="site-row" @click="goSceneSelect">
       <view class="site-left">
         <up-icon name="list" size="18" color="#26c996" />
-        <text class="site-text">请选择场所</text>
+        <text class="site-text">{{ sceneName || '请选择场所' }}</text>
       </view>
       <up-icon name="arrow-right" size="14" color="#26c996" />
     </view>
@@ -33,8 +33,8 @@
       <up-empty mode="list" text="暂无数据" />
     </view>
 
-    <view class="fab-wrap">
-      <up-button type="success" shape="circle" text="添加设备" @click="goAdd" />
+    <view class="fab-wrap" @click="goAdd">
+      <up-icon name="plus" color="#ffffff" size="28" />
     </view>
   </view>
 </template>
@@ -42,14 +42,28 @@
 <script>
 import { ROUTES } from '@/constants/routes'
 import { navigateTo } from '@/utils/navigation'
+import { getCurrentScene } from '@/store/scene'
 
 export default {
   data() {
     return {
-      noticeText: '点击选择场所后可进入设备配置流程'
+      noticeText: '点击选择场所后可进入设备配置流程',
+      sceneName: ''
     }
   },
+  onShow() {
+    this.refreshScene()
+  },
   methods: {
+    // 从全局场景状态刷新回显文案。
+    refreshScene() {
+      const scene = getCurrentScene()
+      this.sceneName = scene ? scene.name : ''
+    },
+    // 进入场景选择页。
+    goSceneSelect() {
+      navigateTo(ROUTES.SCENE_SELECT)
+    },
     // 进入设备添加页（后续会承接蓝牙配网流程入口）。
     goAdd() {
       navigateTo(ROUTES.DEVICE_ADD)
@@ -67,7 +81,6 @@ export default {
 
 .page {
   position: relative;
-  padding-bottom: 180rpx;
 }
 
 .banner {
@@ -139,8 +152,19 @@ export default {
 
 .fab-wrap {
   position: fixed;
-  right: 32rpx;
-  bottom: 220rpx;
-  width: 240rpx;
+  right: 40rpx;
+  bottom: 60rpx;
+  width: 112rpx;
+  height: 112rpx;
+  border-radius: 50%;
+  background: linear-gradient(135deg, #1fca97 0%, #2dbf9c 100%);
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  box-shadow: 0 8rpx 24rpx rgba(31, 202, 151, 0.4);
+  /* 点击态缩放反馈 */
+  &:active {
+    transform: scale(0.92);
+  }
 }
 </style>

pages/scene/select.vue

@@ -0,0 +1,120 @@
+<!-- 场景选择页：加载场景列表，点选后保存并返回首页 -->
+<template>
+  <view class="page page-base">
+    <up-navbar title="选择场所" :fixed="false" :safe-area-inset-top="true" :border="false" />
+
+    <view v-if="loading" class="state-wrap">
+      <up-loading-icon mode="circle" size="48" text="加载中..." />
+    </view>
+
+    <view v-else-if="loadError" class="state-wrap">
+      <up-empty mode="wifi" text="加载失败，请检查网络" />
+      <up-button type="success" shape="circle" text="重试" class="retry-btn" @click="loadScenes" />
+    </view>
+
+    <view v-else-if="sceneList.length === 0" class="state-wrap">
+      <up-empty mode="list" text="暂无场景" />
+    </view>
+
+    <view v-else class="scene-list">
+      <view
+        v-for="scene in sceneList"
+        :key="scene.id"
+        class="scene-item"
+        :class="{ 'scene-item--active': scene.id === currentSceneId }"
+        @click="selectScene(scene)"
+      >
+        <text class="scene-name">{{ scene.name }}</text>
+        <up-icon
+          :name="scene.id === currentSceneId ? 'checkmark' : 'arrow-right'"
+          :size="scene.id === currentSceneId ? '16' : '14'"
+          :color="scene.id === currentSceneId ? '#26c996' : '#c0c4cc'"
+        />
+      </view>
+    </view>
+  </view>
+</template>
+
+<script>
+import { getSceneList } from '@/api/scene'
+import { getCurrentScene, setCurrentScene } from '@/store/scene'
+import { navigateBack } from '@/utils/navigation'
+
+export default {
+  data() {
+    return {
+      loading: true,
+      loadError: false,
+      sceneList: [],
+      currentSceneId: getCurrentScene()?.id ?? null
+    }
+  },
+  onLoad() {
+    this.loadScenes()
+  },
+  methods: {
+    // 拉取场景列表；失败时切换错误态供重试，toast 由请求封装统一弹出。
+    async loadScenes() {
+      this.loading = true
+      this.loadError = false
+      try {
+        const data = await getSceneList()
+        this.sceneList = Array.isArray(data) ? data : []
+      } catch (error) {
+        this.loadError = true
+      } finally {
+        this.loading = false
+      }
+    },
+    // 选中场景：保存后返回，首页 onShow 回显。
+    selectScene(scene) {
+      setCurrentScene(scene)
+      navigateBack()
+    }
+  }
+}
+</script>
+
+<style lang="scss" scoped>
+@import '@/styles/common.css';
+
+.state-wrap {
+  margin-top: 120rpx;
+  display: flex;
+  flex-direction: column;
+  align-items: center;
+}
+
+.retry-btn {
+  margin-top: 40rpx;
+  width: 240rpx;
+}
+
+.scene-list {
+  margin-top: 20rpx;
+}
+
+.scene-item {
+  height: 104rpx;
+  padding: 0 32rpx;
+  margin-bottom: 2rpx;
+  background: #ffffff;
+  display: flex;
+  align-items: center;
+  justify-content: space-between;
+}
+
+.scene-item--active {
+  background: #e9fff3;
+}
+
+.scene-name {
+  font-size: 32rpx;
+  color: #222;
+  font-weight: 600;
+}
+
+.scene-item--active .scene-name {
+  color: #26c996;
+}
+</style>

store/scene.js

@@ -0,0 +1,42 @@
+/**
+ * 当前场景全局状态：内存 + uni.storage 持久化。
+ * 项目未引入 Vuex/Pinia，采用轻量模块方案。
+ */
+const STORAGE_KEY = 'current_scene'
+
+let currentScene = null
+
+// 模块加载时从本地存储恢复上次选中的场景。
+function initFromStorage() {
+  const cached = uni.getStorageSync(STORAGE_KEY)
+  if (cached && cached.id !== undefined) {
+    currentScene = cached
+  }
+}
+
+initFromStorage()
+
+/**
+ * 获取当前选中场景。
+ * @returns {{ id: *, name: string } | null}
+ */
+export function getCurrentScene() {
+  return currentScene
+}
+
+/**
+ * 设置当前场景并持久化（仅保留 id/name，避免后端多余字段进缓存）。
+ * @param {{ id: *, name: string }} scene
+ */
+export function setCurrentScene(scene) {
+  currentScene = { id: scene.id, name: scene.name }
+  uni.setStorageSync(STORAGE_KEY, currentScene)
+}
+
+/**
+ * 清除当前场景（本地与持久化均清除）。
+ */
+export function clearCurrentScene() {
+  currentScene = null
+  uni.removeStorageSync(STORAGE_KEY)
+}