用uniapp如何连接蓝牙热敏打印机,进行打印
时间: 2023-10-29 14:04:19 浏览: 223
连接蓝牙热敏打印机的步骤如下:
1.在uniapp项目中引入cordova插件:cordova-plugin-bluetooth-serial
2.在需要连接蓝牙热敏打印机的页面进行引入:
```javascript
<script>
import BluetoothSerial from 'cordova-plugin-bluetooth-serial'
export default {
data() {
return {
devices: [] // 存放搜索到的蓝牙设备
}
},
methods: {
searchBluetooth() { // 搜索蓝牙设备
BluetoothSerial.isEnabled(() => { // 判断蓝牙是否打开
BluetoothSerial.list((devices) => { // 搜索蓝牙设备
this.devices = devices // 将搜索到的设备存储到data中
}, (error) => {
console.log(error)
})
}, () => {
alert('请先打开蓝牙') // 提示用户打开蓝牙
})
},
connectBluetooth(macAddress) { // 连接蓝牙设备
BluetoothSerial.connect(macAddress, () => { // 连接设备
console.log('连接成功')
}, (error) => {
console.log(error)
})
},
print() { // 打印内容
BluetoothSerial.write('打印测试内容', () => { // 向设备写入内容
console.log('打印成功')
}, (error) => {
console.log(error)
})
}
}
}
</script>
```
3.在页面中调用方法进行搜索、连接和打印:
```html
<template>
<div>
<button @click="searchBluetooth">搜索设备</button>
<div v-for="(device, index) in devices" :key="index">
<span>{{ device.name }}</span>
<button @click="connectBluetooth(device.address)">连接</button>
</div>
<button @click="print">打印</button>
</div>
</template>
```
注:以上代码仅为示例,具体实现需要根据蓝牙设备的型号和通信协议进行调整。
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