1.需求：3.0的桩可以值扫码通过蓝牙名字直接绑定，2.0的桩二维码无蓝牙名称则需通过蓝牙列表来绑定
2.碰到问题
1.0 蓝牙列表需要去重（蓝牙列表通过deviceId去重再放进展示列表）
2.0页面会卡顿（调用my.stopBluetoothDevicesDiscovery() ）
3.特别注意点

4.代码

<template>
	<view style="height:100vh;padding-top: 40rpx;">
		<view class="titleHead">请选择蓝牙设备绑定</view>
		<view class="table-body" @touchmove="move">
			<view class="table-item" v-for="(item,index) in bluetoothList" :key="index" @click="selectBluetooth(item)">
				{{item.name}}
			</view>
		</view>
		<view class="bottom-title">
			<view>
				设备名称规则:ZDBT+桩编码后9位
			</view>
			<view>
				例:ZDBT000000V01
			</view>
		</view>
	</view>
</template>

<script>
	export default {
		onShow() {
			this.initBluetooth()
		},
		onLoad() {

		},
		onUnload() {
			my.offBluetoothDeviceFound();
			my.closeBluetoothAdapter({
				success: function(res) {
					console.log(res);
				},
				fail: function(err) {
					console.log(err);
				}
			});
		},
		onHide() {
			my.offBluetoothDeviceFound();
			my.closeBluetoothAdapter({
				success: function(res) {
					console.log(res);
				},
				fail: function(err) {
					console.log(err);
				}
			});
		},
		onPullDownRefresh() {
			uni.showToast({
				title: '正在刷新...'
			})
			this.connectBluetooth()
		},
		components: {
			// timePicker
		},
		data() {
			return {
				tipShow: false,
				show: false,
				msg: '',
				pendingShow: false,
				successShow: false,
				timer: null,
				count: 3,
				bluetoothList: [],
				idList:[],//存放设备deviceId数组 去重
			}
		},
		methods: {
			goService() {
				this.tipShow = true;
			},
			// clickFla(){
			// 	my.stopPullDownRefresh()
			// 	my.offBluetoothDeviceFound();
			// },
			move() {
				my.stopPullDownRefresh()
				my.offBluetoothDeviceFound();
				my.stopBluetoothDevicesDiscovery();
			},
			/*选中蓝牙*/
			selectBluetooth(item) {
				my.stopPullDownRefresh()
				my.offBluetoothDeviceFound();
				my.stopBluetoothDevicesDiscovery({
					success: (res) => {
						my.closeBluetoothAdapter();
						uni.reLaunch({
							url: '/pages/bluetoothList/index?name=' + item.name
						})
					},
					fail: (error) => {
						console.log(error);
					},
				});
			},
			/*蓝牙初始化*/
			initBluetooth() {
				console.log('蓝牙初始化')
				let that = this;
				my.openBluetoothAdapter({
					success: res => {
						console.log('蓝牙初始化')
						console.log(res)
						console.log('蓝牙初始化')
						if (!res.isSupportBLE) {
							uni.showToast({
								title: '抱歉，您的手机蓝牙暂不可用'
							})
							return;
						}
						that.connectBluetooth()
					},
					fail: error => {
						uni.showToast({
							title: JSON.stringify(error.errorMessage)
						})
					},
				});
			},
			/*搜索连接蓝牙*/
			connectBluetooth() {
				console.log('开始搜索蓝牙')
				let that = this;
				let list = []
				//启用下拉刷新
				my.startPullDownRefresh({
					success: function(res) {
						console.log(res);
					},
					fail: function(err) {
						console.log(err);
					}
				});
				my.startBluetoothDevicesDiscovery({
					success() {
						my.onBluetoothDeviceFound(res => {
							var deviceArray = res.devices;
							for (let item of deviceArray) {
								if (item.name != undefined && item.name != null) {
									if (that.idList.indexOf(item['deviceId']) == -1) {//数组去重
										that.idList.push(item['deviceId'])
										that.bluetoothList.push(item)
									}
								}
							}
							//10秒后停止搜索释放系统资源
							let timer = setTimeout(() => {
								my.stopBluetoothDevicesDiscovery()
								my.stopPullDownRefresh()
								clearTimeout(timer)
							}, 10000);
						})
					}
				})
			}
		},
	}
</script>

<style lang="scss" scoped>
	.titleHead {
		width: 100%;
		height: 66rpx;
		font-size: 48rpx;
		font-family: PingFangSC-Semibold, PingFang SC;
		font-weight: 600;
		color: #2D3748;
		line-height: 66rpx;
		margin: 0 50rpx 0 50rpx;
	}

	.table-body {
		display: flex;
		flex-direction: column;
		align-items: center;
		margin-top: 30rpx;
		height: calc(100vh - 350rpx);
		overflow: scroll;

		.table-item {
			width: 650rpx;
			height: 90rpx;
			line-height: 90rpx;
			background: #FFFFFF;
			box-shadow: 0rpx 0rpx 30rpx 14rpx rgba(236, 235, 236, 0.25);
			border-radius: 45rpx;
			padding-left: 50rpx;
			margin-bottom: 20rpx;
		}

		.table-active {
			width: 650rpx;
			height: 90rpx;
			background: #1677FF;
			color: #FFFFFF;
			box-shadow: 0rpx 0rpx 30rpx 14rpx rgba(236, 235, 236, 0.25);
			border-radius: 45rpx;
			padding-left: 50rpx;
			margin-bottom: 20rpx;
		}
	}

	.bottom-title {
		position: fixed;
		bottom: 100rpx;
		left: 50%;
		transform: translateX(-50%);
		font-size: 24rpx;
		font-family: PingFangSC-Regular, PingFang SC;
		font-weight: 400;
		color: #1677FF;
		line-height: 34rpx;

		>view {
			text-align: center;
		}
	}
</style>

5.效果