修改index.js:
// pages/blueconn/blueconn.js
var app = getApp()
Page({
/**
* 页面的初始数据
*/
data: {
list: [],
services: [],
serviceId: 0,
writeCharacter: false,
readCharacter: false,
notifyCharacter: false,
isScanning:false,
imageUrl:"../image/0.jpg"
},
//搜索设备
startSearch: function () {
var that = this
wx.openBluetoothAdapter({
success: function (res) {
wx.getBluetoothAdapterState({
success: function (res) {
console.log('openBluetoothAdapter success', res)
if (res.available) {
if (res.discovering) {
wx.stopBluetoothDevicesDiscovery({
success: function (res) {
console.log(res)
}
})
}else{
// that.startBluetoothDevicesDiscovery()
that.getBluetoothDevices()
}
// that.checkPemission()
} else {
wx.showModal({
title: '提示',
content: '本机蓝牙不可用',
showCancel: false
})
}
},
})
}, fail: function () {
// if (res.errCode === 10001) {
// wx.onBluetoothAdapterStateChange(function (res) {
// console.log('onBluetoothAdapterStateChange', res)
// if (res.available) {
// this.startBluetoothDevicesDiscovery()
// }
// })
// }
wx.showModal({
title: '提示',
content: '蓝牙初始化失败，请到设置打开蓝牙',
showCancel: false
})
}
})
},
checkPemission: function () { //android 6.0以上需授权地理位置权限
var that = this
var platform = app.BLEInformation.platform
if (platform == "ios") {
app.globalData.platform = "ios"
that.getBluetoothDevices()
} else if (platform == "android") {
app.globalData.platform = "android"
console.log(app.getSystem().substring(app.getSystem().length - (app.getSystem().length - 8), app.getSystem().length - (app.getSystem().length - 8) + 1))
if (app.getSystem().substring(app.getSystem().length - (app.getSystem().length - 8), app.getSystem().length - (app.getSystem().length - 8) + 1) > 5) {
wx.getSetting({
success: function (res) {
console.log(res)
if (!res.authSetting['scope.userLocation']) {
wx.authorize({
scope: 'scope.userLocation',
complete: function (res) {
that.getBluetoothDevices()
}
})
} else {
that.getBluetoothDevices()
}
}
})
}
}
},
getBluetoothDevices: function () { //获取蓝牙设备信息
var that = this
console.log("start search")
wx.showLoading({
title: '正在加载',
icon: 'loading',
})
that.setData({
isScanning:true
})
wx.startBluetoothDevicesDiscovery({
success: function (res) {
console.log(res)
setTimeout(function () {
wx.getBluetoothDevices({
success: function (res) {
var devices = []
var num = 0
for (var i = 0; i < res.devices.length; ++i) {
if (res.devices.name != "未知设备") {
devices[num] = res.devices
num++
}
}
that.setData({
list: devices,
isScanning:false
})
wx.hideLoading()
wx.stopPullDownRefresh()
wx.stopBluetoothDevicesDiscovery({
success: function (res) {
console.log("停止搜索蓝牙")
}
})
},
})
}, 5000)
},
})
},
bindViewTap: function (e) {
var that = this
wx.stopBluetoothDevicesDiscovery({
success: function (res) { console.log(res) },
})
that.setData({
serviceId: 0,
writeCharacter: false,
readCharacter: false,
notifyCharacter: false
})
console.log(e.currentTarget.dataset.title)
wx.showLoading({
title: '正在连接',
})
wx.createBLEConnection({
deviceId: e.currentTarget.dataset.title,
success: function (res) {
console.log(res)
app.BLEInformation.deviceId = e.currentTarget.dataset.title
that.getSeviceId()
}, fail: function (e) {
wx.showModal({
title: '提示',
content: '连接失败',
showCancel: false
})
console.log(e)
wx.hideLoading()
}, complete: function (e) {
console.log(e)
}
})
},
getSeviceId: function () {
var that = this
var platform = app.BLEInformation.platform
console.log(app.BLEInformation.deviceId)
wx.getBLEDeviceServices({
deviceId: app.BLEInformation.deviceId,
success: function (res) {
console.log(res)
// var realId = ''
// if (platform == 'android') {
// // for(var i=0;i<res.services.length;++i){
// // var item = res.services.uuid
// // if (item == "0000FEE7-0000-1000-8000-00805F9B34FB"){
// realId = "0000FEE7-0000-1000-8000-00805F9B34FB"
// // break;
// // }
// // }
// } else if (platform == 'ios') {
// // for(var i=0;i<res.services.length;++i){
// // var item = res.services.uuid
// // if (item == "49535343-FE7D-4AE5-8FA9-9FAFD205E455"){
// realId = "49535343-FE7D-4AE5-8FA9-9FAFD205E455"
// // break
// // }
// // }
// }
// app.BLEInformation.serviceId = realId
that.setData({
services: res.services
})
that.getCharacteristics()
}, fail: function (e) {
console.log(e)
}, complete: function (e) {
console.log(e)
}
})
},
getCharacteristics: function () {
var that = this
var list = that.data.services
var num = that.data.serviceId
var write = that.data.writeCharacter
var read = that.data.readCharacter
var notify = that.data.notifyCharacter
wx.getBLEDeviceCharacteristics({
deviceId: app.BLEInformation.deviceId,
serviceId: list[num].uuid,
success: function (res) {
console.log(res)
for (var i = 0; i < res.characteristics.length; ++i) {
var properties = res.characteristics.properties
var item = res.characteristics.uuid
if (!notify) {
if (properties.notify) {
app.BLEInformation.notifyCharaterId = item
app.BLEInformation.notifyServiceId = list[num].uuid
notify = true
}
}
if (!write) {
if (properties.write) {
app.BLEInformation.writeCharaterId = item
app.BLEInformation.writeServiceId = list[num].uuid
write = true
}
}
if (!read) {
if (properties.read) {
app.BLEInformation.readCharaterId = item
app.BLEInformation.readServiceId = list[num].uuid
read = true
}
}
}
if (!write || !notify || !read) {
num++
that.setData({
writeCharacter: write,
readCharacter: read,
notifyCharacter: notify,
serviceId: num
})
if (num == list.length) {
wx.showModal({
title: '提示',
content: '找不到该读写的特征值',
showCancel: false
})
} else {
that.getCharacteristics()
}
} else {
wx.showToast({
title: '连接成功',
})
that.openControl()
}
}, fail: function (e) {
console.log(e)
}, complete: function (e) {
console.log("write:" + app.BLEInformation.writeCharaterId)
console.log("read:" + app.BLEInformation.readCharaterId)
console.log("notify:" + app.BLEInformation.notifyCharaterId)
}
})
},
openControl: function () {//连接成功返回主页
// wx.navigateTo({
// url: '../home/home',
// })
var that = this
wx.notifyBLECharacteristicValueChange({
state: true, // 启用 notify 功能
// 这里的 deviceId 需要已经通过 createBLEConnection 与对应设备建立链接
deviceId:app.BLEInformation.deviceId,
// 这里的 serviceId 需要在 getBLEDeviceServices 接口中获取
serviceId:"0000FFE0-0000-1000-8000-00805F9B34FB",
// 这里的 characteristicId 需要在 getBLEDeviceCharacteristics 接口中获取
characteristicId:"0000FFE4-0000-1000-8000-00805F9B34FB",
success (res) {
console.log('notifyBLECharacteristicValueChange success', res.errMsg)
}
})
// ArrayBuffer转16进制字符串示例
function ab2hex(buffer) {
let hexArr = Array.prototype.map.call(
new Uint8Array(buffer),
function(bit) {
return ('00' + bit.toString(16)).slice(-2)
}
)
return hexArr.join('');
}
wx.onBLECharacteristicValueChange(function(res) {
console.log(`characteristic ${res.characteristicId} has changed, now is ${res.value}`)
console.log(ab2hex(res.value))
if(ab2hex(res.value) == 8801){
console.log("开灯")
that.setData({
imageUrl: "../image/1.jpg"
})
}
else
{
console.log("关灯")
that.setData({
imageUrl: "../image/0.jpg"
})
}
})
},
offLED: function (e) {
console.log("发送关灯程序")
var senddata = "0";
var that = this
let buffer = new ArrayBuffer(senddata.length)
let dataView = new DataView(buffer)
for (var i = 0; i < senddata.length; i++) {
dataView.setUint8(i, senddata.charAt(i).charCodeAt())
}
wx.writeBLECharacteristicValue({
deviceId: app.BLEInformation.deviceId,
serviceId: "0000FFE0-0000-1000-8000-00805F9B34FB",
characteristicId: "0000FFE1-0000-1000-8000-00805F9B34FB",
value: buffer,
success: function (res) {
wx.showToast({
title: '发送成功',
icon: 'success',
duration: 2000
})
}
})
},
onLED: function (e) {
console.log("发送开灯灯程序")
console.log("发送关灯程序")
var senddata = "1";
var that = this
let buffer = new ArrayBuffer(senddata.length)
let dataView = new DataView(buffer)
for (var i = 0; i < senddata.length; i++) {
dataView.setUint8(i, senddata.charAt(i).charCodeAt())
}
wx.writeBLECharacteristicValue({
deviceId: app.BLEInformation.deviceId,
serviceId: "0000FFE0-0000-1000-8000-00805F9B34FB",
characteristicId: "0000FFE1-0000-1000-8000-00805F9B34FB",
value: buffer,
success: function (res) {
wx.showToast({
title: '发送成功',
icon: 'success',
duration: 2000
})
}
})
},
/**
* 生命周期函数--监听页面加载
*/
onLoad: function (options) {
app.BLEInformation.platform = app.getPlatform()
},
/**
* 生命周期函数--监听页面初次渲染完成
*/
onReady: function () {
},
/**
* 生命周期函数--监听页面显示
*/
onShow: function () {
},
/**
* 生命周期函数--监听页面隐藏
*/
onHide: function () {
},
/**
* 生命周期函数--监听页面卸载
*/
onUnload: function () {
},
// /**
// * 页面相关事件处理函数--监听用户下拉动作
// */
// onPullDownRefresh: function () {
// // var that = this
// // wx.startPullDownRefresh({})
// // that.startSearch()
// },
/**
* 页面上拉触底事件的处理函数
*/
onReachBottom: function () {
},
/**
* 用户点击右上角分享
*/
onShareAppMessage: function () {
}
}) |
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