8、获取蓝牙设备所有service(getBLEDeviceServices)

秒速五厘米 2022-04-24 01:02 637阅读 0赞

# wx.getBLEDeviceServices(Object object) #

> 基础库 1.1.0 开始支持，低版本需做[兼容处理][Link 1]。

获取蓝牙设备所有服务(service)。

## 参数 ##

### Object object ###

<table> 
 <thead> 
  <tr> 
   <th>属性</th> 
   <th>类型</th> 
   <th>默认值</th> 
   <th>必填</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>deviceId</td> 
   <td>string</td> 
   <td>&nbsp;</td> 
   <td>是</td> 
   <td>蓝牙设备 id</td> 
  </tr> 
  <tr> 
   <td>success</td> 
   <td>function</td> 
   <td>&nbsp;</td> 
   <td>否</td> 
   <td>接口调用成功的回调函数</td> 
  </tr> 
  <tr> 
   <td>fail</td> 
   <td>function</td> 
   <td>&nbsp;</td> 
   <td>否</td> 
   <td>接口调用失败的回调函数</td> 
  </tr> 
  <tr> 
   <td>complete</td> 
   <td>function</td> 
   <td>&nbsp;</td> 
   <td>否</td> 
   <td>接口调用结束的回调函数（调用成功、失败都会执行）</td> 
  </tr> 
 </tbody> 
</table>

object.success 回调函数

参数

Object res

<table> 
 <thead> 
  <tr> 
   <th>属性</th> 
   <th>类型</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>services</td> 
   <td>Array.&lt;Object&gt;</td> 
   <td>设备服务列表</td> 
  </tr> 
 </tbody> 
</table>

**res.services 的结构**

<table> 
 <thead> 
  <tr> 
   <th>属性</th> 
   <th>类型</th> 
   <th>说明</th> 
  </tr> 
 </thead> 
 <tbody> 
  <tr> 
   <td>uuid</td> 
   <td>string</td> 
   <td>蓝牙设备服务的 uuid</td> 
  </tr> 
  <tr> 
   <td>isPrimary</td> 
   <td>boolean</td> 
   <td>该服务是否为主服务</td> 
  </tr> 
 </tbody> 
</table>

lanyatest.wxml代码：

<view class="contentview">
    
      <view  class='myview' >
        
          {
       {info}}
        
    
      </view>
    
      <button type="primary" class="button" bindtap="lanyatest1">1初始化蓝牙</button>
      <button type="primary" class="button" bindtap="lanyatest2">2获取蓝牙状态</button>
      <button type="primary" class="button" bindtap="lanyatest3">3搜索周边设备</button>
      <button type="primary" class="button" bindtap="lanyatest4">4获取所有设备</button>
      <block wx:for="{
       {devices}}" wx:key="{
       {test}}">
        <button type="primary" class="button" id="{
       {item.deviceId}}" style='background-color:red' bindtap="lanyaconnect">5连接{
       {item.name}}         </button>
      </block>
      <button type="primary" class="button" bindtap="lanyatest6">6停止搜索周边蓝牙设备</button>
      <button type="primary" class="button" bindtap="lanyatest7">7获取所有service</button>
    </view>

lanyatest.js代码：

// pages/lanyatest/lanyatest.js
    Page({
    
      /**
       * 页面的初始数据
       */
      data: {
        info:"未初始化蓝牙适配器",
        connectedDeviceId:"",
        deviceId:"",
        services:""
      },
    
      lanyatest1(event){
        var that = this;
        wx.openBluetoothAdapter({
          success: function (res) {
            console.log('初始化蓝牙适配器成功')
            //页面日志显示
            that.setData({
              info: '初始化蓝牙适配器成功'
            })
          },
          fail: function (res) {
            console.log('请打开蓝牙和定位功能')
            that.setData({
              info: '请打开蓝牙和定位功能'
            })
          }
        })
      },
    
    
    
      lanyatest2(event){
        var that = this;
        wx.getBluetoothAdapterState({
    
          success: function (res) {
    
            //打印相关信息
            console.log(JSON.stringify(res.errMsg) + "\n蓝牙是否可用：" + res.available);
    
            that.setData({
              info: JSON.stringify(res.errMsg) +"\n蓝牙是否可用：" + res.available
            })
    
          },
          fail: function (res) {
    
            //打印相关信息
            console.log(JSON.stringify(res.errMsg) + "\n蓝牙是否可用：" + res.available);
    
            that.setData({
              info: JSON.stringify(res.errMsg) + "\n蓝牙是否可用：" + res.available
            })
    
          }
          
        })
    
      },
    
    
    
      lanyatest3(event){
        var that = this;
        wx.startBluetoothDevicesDiscovery({
          services: ['FEE7'], //如果填写了此UUID，那么只会搜索出含有这个UUID的设备，建议一开始先不填写或者注释掉这一句
          success: function (res) {
            that.setData({
              info: "搜索设备" + JSON.stringify(res),
            })
            console.log('搜索设备返回' + JSON.stringify(res))
    
          }
        })
    
      },
    
    
    
    
      lanyatest4(event){
        var that = this;
        wx.getBluetoothDevices({
          success: function (res) {
    
            that.setData({
              info: "设备列表\n" + JSON.stringify(res.devices),
              devices: res.devices
            })
            console.log('搜设备数目：' + res.devices.length)
            console.log('设备信息：\n' + JSON.stringify(res.devices)+"\n")
          }
        })
    
      },
    
    
    
      lanyaconnect(event){
        var that = this;
        wx.createBLEConnection({
          deviceId: event.currentTarget.id,
          success: function (res) {
            console.log('调试信息：' + res.errMsg);
            that.setData({
              connectedDeviceId: event.currentTarget.id,
              info: "MAC地址：" + event.currentTarget.id  + '  调试信息：' + res.errMsg,
              
            })
          },
          fail: function () {
            console.log("连接失败");
          },
    
        })
    
      },
    
    
      lanyatest6(event){
        var that = this;
        wx.stopBluetoothDevicesDiscovery({
          success: function (res) {
            console.log("停止搜索" + JSON.stringify(res.errMsg));
            that.setData({
              info: "停止搜索"  + JSON.stringify(res.errMsg),
            })
          }
        })
    
      },
    
    
    
      lanyatest7(event){
        var that = this;
        wx.getBLEDeviceServices({
          // 这里的 deviceId 需要在上面的 getBluetoothDevices 或 onBluetoothDeviceFound 接口中获取
          deviceId: that.data.connectedDeviceId,
          success: function (res) {
            console.log('services UUID:\n', JSON.stringify(res.services));
            for (var i = 0; i < res.services.length; i++) {
              console.log("第"+(i+1) + "个UUID:" + res.services[i].uuid+"\n")
              
    
            }
            that.setData({
              services: res.services,
              info: JSON.stringify(res.services),
            })
          }
        })
    
      },
    
    
    
    //我删除了自动生成的生命周期函数
    
    })

lanyatest.wxss代码：

/* pages/lanyatest/lanyatest.wxss */
    .vertical{
      display: flex;
      flex-direction: column;
    }
    
    /**index.wxss**/
    .horizontal{
      display: flex;
      flex-direction: row;
    }
    
    .btinfo{
      height:100px;
    }
    
    .contentview {
    margin: 0 10px;
    }
     
    .button {
    margin: 5px;
    }
    
    .myview{
      height:200px;
      word-break:break-all;/* 自动换行 */
    }

# 真机调试结果： #

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MjM0MDg3_size_16_color_FFFFFF_t_70][]

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MjM0MDg3_size_16_color_FFFFFF_t_70 1][]

[Link 1]: https://developers.weixin.qq.com/miniprogram/dev/framework/compatibility.html
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MjM0MDg3_size_16_color_FFFFFF_t_70]: /images/20220221/f0109cd0e98e4ce1ae92ead0b7412179.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzM0MjM0MDg3_size_16_color_FFFFFF_t_70 1]: /images/20220221/3c845b6c7e924320b7cffdcdd6288750.png