基础库版本：2.24.1 微信版本：8.0.22 手机型号：MI 9 安卓版本：9 描述： writeBLECharacteristicValue 写入接口调用后无任何回调。success,fail,complete 都没有回调。onBLECharacteristicValueChange 也没有触发 但数据似乎写入进去了。通过 readBLECharacteristicValue 读取到的 特征value 为我写入进去的值。虽然我不是要我写入的值，而是要通过写入 让设备反馈给我数据。 readBLECharacteristicValue 有回调 success ,fail,complete，onBLECharacteristicValueChange 都能触发。 真机调试截图： [图片][图片] 部分代码： getBLEDeviceServices(deviceId) {     wx.getBLEDeviceServices({       deviceId,       success: (res) => {         for (let i = 0; i < res.services.length; i++) {           if (res.services[i].isPrimary) {             console.log(res.services[i])           }         }         // this.getBLEDeviceCharacteristics(deviceId, res.services[4].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[2].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[3].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[4].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[5].uuid)       }     })   },   getBLEDeviceCharacteristics(deviceId, serviceId) {     wx.getBLEDeviceCharacteristics({       deviceId,       serviceId,       success: (res) => {         console.log('getBLEDeviceCharacteristics success', res.characteristics)         for (let i = 0; i < res.characteristics.length; i++) {           let item = res.characteristics[i]           console.log(item)           if (item.properties.read) {             wx.readBLECharacteristicValue({               deviceId,               serviceId,               characteristicId: item.uuid,               success: (res) => {                 console.log(res)                 console.log('读取成功')               }             })           }           if (item.properties.write) {             this.setData({               canWrite: true             })             this._deviceId = deviceId             this._serviceId = serviceId             this._characteristicId = item.uuid             let data = 0             if (serviceId === '0000FFF0-0000-1000-8000-00805F9B34FB') {               data = 0xff             }             if (serviceId === '0000FFE0-0000-1000-8000-00805F9B34FB') {               data = 0x11             }             if (serviceId === '0000FFB1-0000-1000-8000-00805F9B34FB') {               data = 0x14             }             this.writeBLECharacteristicValue(data)           }           if (item.properties.notify || item.properties.indicate) {             wx.notifyBLECharacteristicValueChange({               deviceId,               serviceId,               characteristicId: item.uuid,               state: true,             })           }         }       },       fail(res) {         console.error('getBLEDeviceCharacteristics', res)       }     })     // 操作之前先监听，保证第一时间获取数据     wx.onBLECharacteristicValueChange((characteristic) => {       console.log('接受')       console.log(characteristic)       const idx = inArray(this.data.chs, 'uuid', characteristic.characteristicId)       const data = {}       if (idx === -1) {         data[`chs[${this.data.chs.length}]`] = {           uuid: characteristic.characteristicId,           value: ab2hex(characteristic.value)         }       } else {         data[`chs[${idx}]`] = {           uuid: characteristic.characteristicId,           value: ab2hex(characteristic.value)         }       }       // data[`chs[${this.data.chs.length}]`] = {       //   uuid: characteristic.characteristicId,       //   value: ab2hex(characteristic.value)       // }       this.setData(data)     })   },   writeBLECharacteristicValue(data) {     // 向蓝牙设备发送一个0x00的16进制数据     let buffer = new ArrayBuffer(1)     let dataView = new DataView(buffer)     data = data || 0x10     dataView.setUint8(0, data)     console.log('写入数据')     console.log(buffer)     wx.writeBLECharacteristicValue({       deviceId: this._deviceId,       serviceId: this._serviceId,       characteristicId: this._characteristicId,       writeType: 'write',       value: buffer,       success: () => {         console.log('成功！')       },       fail: () => {         console.log('失败！')       },       complete: () => {         console.log('结束！')       }     })   },

基础库版本：2.24.1 微信版本：8.0.22 手机型号：MI 9 安卓版本：9 描述： writeBLECharacteristicValue 写入接口调用后无任何回调。success,fail,complete 都没有回调。onBLECharacteristicValueChange 也没有触发 但数据似乎写入进去了。通过 readBLECharacteristicValue 读取到的 特征value 为我写入进去的值。虽然我不是要我写入的值，而是要通过写入 让设备反馈给我数据。 readBLECharacteristicValue 有回调 success ,fail,complete，onBLECharacteristicValueChange 都能触发。 真机调试截图： [图片][图片] 部分代码： getBLEDeviceServices(deviceId) {     wx.getBLEDeviceServices({       deviceId,       success: (res) => {         for (let i = 0; i < res.services.length; i++) {           if (res.services[i].isPrimary) {             console.log(res.services[i])           }         }         // this.getBLEDeviceCharacteristics(deviceId, res.services[4].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[2].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[3].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[4].uuid)         this.getBLEDeviceCharacteristics(deviceId, res.services[5].uuid)       }     })   },   getBLEDeviceCharacteristics(deviceId, serviceId) {     wx.getBLEDeviceCharacteristics({       deviceId,       serviceId,       success: (res) => {         console.log('getBLEDeviceCharacteristics success', res.characteristics)         for (let i = 0; i < res.characteristics.length; i++) {           let item = res.characteristics[i]           console.log(item)           if (item.properties.read) {             wx.readBLECharacteristicValue({               deviceId,               serviceId,               characteristicId: item.uuid,               success: (res) => {                 console.log(res)                 console.log('读取成功')               }             })           }           if (item.properties.write) {             this.setData({               canWrite: true             })             this._deviceId = deviceId             this._serviceId = serviceId             this._characteristicId = item.uuid             let data = 0             if (serviceId === '0000FFF0-0000-1000-8000-00805F9B34FB') {               data = 0xff             }             if (serviceId === '0000FFE0-0000-1000-8000-00805F9B34FB') {               data = 0x11             }             if (serviceId === '0000FFB1-0000-1000-8000-00805F9B34FB') {               data = 0x14             }             this.writeBLECharacteristicValue(data)           }           if (item.properties.notify || item.properties.indicate) {             wx.notifyBLECharacteristicValueChange({               deviceId,               serviceId,               characteristicId: item.uuid,               state: true,             })           }         }       },       fail(res) {         console.error('getBLEDeviceCharacteristics', res)       }     })     // 操作之前先监听，保证第一时间获取数据     wx.onBLECharacteristicValueChange((characteristic) => {       console.log('接受')       console.log(characteristic)       const idx = inArray(this.data.chs, 'uuid', characteristic.characteristicId)       const data = {}       if (idx === -1) {         data[`chs[${this.data.chs.length}]`] = {           uuid: characteristic.characteristicId,           value: ab2hex(characteristic.value)         }       } else {         data[`chs[${idx}]`] = {           uuid: characteristic.characteristicId,           value: ab2hex(characteristic.value)         }       }       // data[`chs[${this.data.chs.length}]`] = {       //   uuid: characteristic.characteristicId,       //   value: ab2hex(characteristic.value)       // }       this.setData(data)     })   },   writeBLECharacteristicValue(data) {     // 向蓝牙设备发送一个0x00的16进制数据     let buffer = new ArrayBuffer(1)     let dataView = new DataView(buffer)     data = data || 0x10     dataView.setUint8(0, data)     console.log('写入数据')     console.log(buffer)     wx.writeBLECharacteristicValue({       deviceId: this._deviceId,       serviceId: this._serviceId,       characteristicId: this._characteristicId,       writeType: 'write',       value: buffer,       success: () => {         console.log('成功！')       },       fail: () => {         console.log('失败！')       },       complete: () => {         console.log('结束！')       }     })   },

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