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+<template>
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+ <view class="connect-printer-page">
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+ <!-- 提示信息图片 - 搜索中显示 gif，搜索完成显示 jpg -->
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+ <view class="info-images">
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+ <image v-if="isSearching" class="w-750 h-311" src="@/static/images/print/print_dt_ssly.gif" mode="widthFix" />
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+ <image v-else class="w-750 h-311" src="@/static/images/print/print_jt_ssly.jpg" mode="widthFix" />
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+ </view>
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+
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+ <!-- 操作按钮区域 -->
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+ <view class="pd-24 action-buttons">
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+ <up-button @click="handleStartSearch" class="mb-30" type="primary" :disabled="isConnected">
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+ {{ isSearching ? '搜索中...' : '开始搜索' }}
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+ </up-button>
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+ <up-button v-if="isConnected" @click="handleDisconnect" class="mb-30" type="warning"> 断开连接 </up-button>
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+ <view class="d-flex a-c j-c">
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+ <up-button class="mr-30" plain type="primary">上一步</up-button>
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+ <up-button @click="nextSteps" type="primary" plain>下一步</up-button>
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+ </view>
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+ </view>
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+
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+ <!-- 设备列表区域 -->
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+ <view class="device-list-section">
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+ <view class="f-s-30 c-#333 f-w-5 mb-20">请选择设备</view>
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+
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+ <!-- 搜索状态提示 -->
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+ <view v-if="isSearching && devices.length === 0" class="searching-tip">
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+ <text>正在搜索附近的蓝牙设备...</text>
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+ </view>
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+
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+ <!-- 设备列表 -->
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+ <view v-if="devices.length" class="device-list">
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+ <view v-for="device in devices" :key="device.deviceId" class="device-item" :class="{ active: connectedDevice?.deviceId === device.deviceId }" @click="handleConnectDevice(device)">
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+ <view class="device-info">
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+ <view class="device-name">{{ device.name }}</view>
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+ <view class="device-address">{{ device.deviceId }}</view>
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+ <view v-if="device.RSSI !== undefined" class="signal-strength"> 信号：{{ device.RSSI }} dBm </view>
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+ </view>
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+ <view class="device-status">
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+ <text v-if="connectedDevice?.deviceId === device.deviceId" class="status-connected">已连接</text>
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+ <text v-else class="status-new">未连接</text>
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+ </view>
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+ </view>
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+ </view>
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+
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+ <!-- 无设备提示 -->
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+ <view v-if="!isSearching && devices.length === 0" class="no-device-tip">
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+ <ut-empty description="暂无可用设备" />
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+ </view>
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+ </view>
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+ </view>
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+</template>
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+
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+<script setup lang="ts">
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+import { checkBluetoothPermission, initBluetoothAdapter, getBluetoothAdapterState, startBluetoothDevicesDiscovery, stopBluetoothDevicesDiscovery, connectBLEDevice, closeBLEConnection, getBLEDeviceServicesAndCharacteristics, getBluetoothDevices } from '@/utils/blue-device-services';
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+const props = defineProps({
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+ info: {
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+ type: Object,
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+ default: () => ({})
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+ },
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+ // 下一个步骤的标识，供父组件使用
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+ nextStepValue: {
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+ type: String,
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+ default: ''
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+ },
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+ // 上一个步骤标识
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+ prevStepValue: {
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+ type: String,
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+ default: ''
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+ }
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+});
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+const emit = defineEmits(['connected', 'disconnected', 'next', 'prev']);
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+const isSearching = ref(false);
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+const isInitialized = ref(false);
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+const devices = ref<Array<any>>([]);
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+const connectedDevice = ref<any | null>(null);
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+const isConnected = computed(() => !!connectedDevice.value);
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+let stopDiscoveryListener: (() => void) | null = null;
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+let searchTimeout: number | null = null;
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+
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+const toast = (title: string) => {
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+ uni.showToast({ title, icon: 'none', duration: 2000 });
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+};
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+
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+const updateDeviceList = (device: any) => {
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+ if (!device?.deviceId) return;
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+ if (device.name.startsWith('未知或不支持的设备')) return;
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+ if (!device.name.startsWith('GP-')) return;
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+ const idx = devices.value.findIndex((d) => d.deviceId === device.deviceId);
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+ if (idx >= 0) {
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+ devices.value[idx] = { ...devices.value[idx], ...device };
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+ } else {
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+ devices.value.unshift(device);
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+ }
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+};
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+
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+const stopSearch = async () => {
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+ if (searchTimeout) {
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+ clearTimeout(searchTimeout);
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+ searchTimeout = null;
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+ }
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+
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+ try {
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+ await stopBluetoothDevicesDiscovery();
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+ } catch (err) {
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+ // ignore
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+ }
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+ stopDiscoveryListener?.();
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+ stopDiscoveryListener = null;
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+ isSearching.value = false;
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+};
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+
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+const initBluetooth = async () => {
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+ if (isInitialized.value) return;
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+
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+ try {
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+ await checkBluetoothPermission();
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+ await initBluetoothAdapter();
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+
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+ // 获取当前蓝牙模块下已发现及已连接的设备（去重）
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+ const list = await getBluetoothDevices();
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+ devices.value = [];
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+ if (Array.isArray(list)) {
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+ list.forEach((item) => updateDeviceList(item));
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+ }
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+
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+ isInitialized.value = true;
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+ toast('蓝牙初始化成功，请点击开始搜索');
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+ } catch (error: any) {
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+ console.error('蓝牙初始化失败', error);
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+ toast(error?.message || '蓝牙初始化失败，请检查系统蓝牙权限');
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+ }
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+};
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+
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+const handleStartSearch = async () => {
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+ if (isSearching.value) return;
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+
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+ if (!isInitialized.value) {
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+ toast('请先初始化蓝牙，再开始搜索');
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+ return;
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+ }
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+
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+ isSearching.value = true;
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+
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+ if (searchTimeout) {
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+ clearTimeout(searchTimeout);
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+ }
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+ searchTimeout = setTimeout(() => {
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+ stopSearch();
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+ toast('搜索超时，已自动停止');
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+ }, 15000);
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+
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+ try {
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+ const list = await getBluetoothDevices();
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+ devices.value = [];
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+ if (Array.isArray(list)) {
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+ list.forEach((item) => updateDeviceList(item));
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+ }
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+ } catch {
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+ // ignore
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+ }
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+
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+ try {
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+ const state = await getBluetoothAdapterState();
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+ if (state.discovering) {
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+ await stopBluetoothDevicesDiscovery();
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+ }
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+
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+ stopDiscoveryListener = await startBluetoothDevicesDiscovery((device) => {
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+ updateDeviceList(device);
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+ });
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+ } catch (error: any) {
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+ console.error('蓝牙搜索失败', error);
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+ toast(error?.message || '蓝牙扫描失败，请重试');
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+ isSearching.value = false;
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+ if (searchTimeout) {
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+ clearTimeout(searchTimeout);
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+ searchTimeout = null;
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+ }
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+ }
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+};
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+
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+const handleConnectDevice = async (device: any) => {
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+ if (!device?.deviceId) {
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+ toast('无效设备，请重试');
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+ return;
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+ }
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+
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+ if (connectedDevice.value?.deviceId === device.deviceId) {
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+ toast('已连接该设备');
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+ return;
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+ }
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+
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+ try {
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+ await stopSearch();
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+ await connectBLEDevice(device.deviceId);
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+
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+ connectedDevice.value = device;
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+ updateDeviceList(device);
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+
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+ const { services, characteristicsMap } = await getBLEDeviceServicesAndCharacteristics(device.deviceId);
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+ console.log('已获取服务', services);
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+ console.log('已获取特征值', characteristicsMap);
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+ toast('蓝牙已连接');
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+ } catch (error: any) {
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+ console.error('连接失败', error);
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+ toast(error?.message || '设备连接失败，请重试');
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+ }
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+};
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+
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+const handleDisconnect = async () => {
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+ if (!connectedDevice.value?.deviceId) return;
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+
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+ try {
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+ await closeBLEConnection(connectedDevice.value.deviceId);
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+ toast('已断开连接');
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+ } catch (error) {
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+ console.warn('断开连接失败', error);
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+ }
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+ connectedDevice.value = null;
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+};
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+const nextSteps = () => {
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+ if (!connectedDevice.value) {
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+ toast('请先连接设备');
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+ return;
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+ }
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+ emit('next', {
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+ info: props.info,
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+ nextStepValue: props.nextStepValue || 'print'
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+ });
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+};
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+onMounted(() => {
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+ initBluetooth();
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+});
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+onBeforeUnmount(() => {
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+ stopSearch();
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+});
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+</script>
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+
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+<style lang="scss" scoped>
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+.connect-printer-page {
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+ background-color: #f5f5f5;
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+
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+ .info-images {
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+ display: flex;
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+ flex-direction: column;
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+ align-items: center;
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+ padding: 20rpx;
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+ background-color: #fff;
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+
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+ image {
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+ margin-bottom: 20rpx;
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+ }
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+ }
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+
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+ .action-buttons {
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+ background-color: #fff;
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+ padding: 20rpx;
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+ }
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+
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+ .device-list-section {
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+ background-color: #fff;
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+ padding: 20rpx;
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+ margin-top: 20rpx;
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+
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+ .section-title {
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+ font-size: 32rpx;
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+ font-weight: bold;
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+ color: #333;
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+ padding-bottom: 20rpx;
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+ border-bottom: 1rpx solid #eee;
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+ }
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+
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+ .section-subtitle {
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+ font-size: 28rpx;
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+ color: #666;
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+ margin: 20rpx 0;
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+ }
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+
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+ .searching-tip {
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+ display: flex;
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+ flex-direction: column;
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+ align-items: center;
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+ padding: 60rpx 0;
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+ color: #999;
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+
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+ text {
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+ margin-top: 20rpx;
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+ }
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+ }
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+
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+ .no-device-tip {
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+ padding: 60rpx 0;
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+ }
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+
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+ .device-scroll {
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+ max-height: 600rpx;
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+ }
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+
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+ .device-item {
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+ display: flex;
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+ justify-content: space-between;
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+ align-items: center;
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+ padding: 30rpx;
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+ margin-bottom: 10rpx;
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+ background-color: #fafafa;
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+ border-radius: 10rpx;
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+ transition: all 0.3s;
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+
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+ &.active {
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+ background-color: #e8f4ff;
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+ border: 2rpx solid #1989fa;
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+ }
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+
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+ &:active {
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+ opacity: 0.8;
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+ }
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+
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+ .device-info {
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+ flex: 1;
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+
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+ .device-name {
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+ font-size: 30rpx;
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+ color: #333;
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+ font-weight: 500;
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+ }
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+
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+ .device-address {
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+ font-size: 24rpx;
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+ color: #999;
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+ margin-top: 8rpx;
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+ }
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+
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+ .signal-strength {
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+ font-size: 24rpx;
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+ color: #67c23a;
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+ margin-top: 8rpx;
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+ }
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+ }
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+
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+ .device-status {
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+ .status-connected {
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+ font-size: 24rpx;
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+ color: #67c23a;
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+ }
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+
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+ .status-paired {
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+ font-size: 24rpx;
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+ color: #909399;
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+ }
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+
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+ .status-new {
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+ font-size: 24rpx;
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+ color: #1989fa;
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+ }
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+ }
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+ }
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+ }
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+
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+ .error-tip {
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+ margin: 20rpx;
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+ }
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+}
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+</style>
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