本项目是通过Swift语言来实现IOS中蓝牙4.0的开发
前面总结了几篇关于Swift的使用，今天要讲的是关于使用Swift开发IOS中蓝牙4.0的开发流程，我以前只是会搞android的蓝牙开发，最近开始了Swift的学习，作为一个swift爱好者，想把蓝牙4.0的这个装逼神器在swift中使用一下。 使用Swift开发IOS中蓝牙4.0的开发流程有如下的几个步骤：
-
建立桥接文件
-
案例的实现
注意：桥接文件的命名规则：项目名-Bridging-Header.Swift
//
// Swfit-BLE-Bridging-Header.h
// Swift-BLE
//
// Created by lidong on 16/7/3.
// Copyright © 2016年 李东. All rights reserved.
//
#import <CoreBluetooth/CoreBluetooth.h>
如下图：
首先，CoreBluetooth库文件为我们提供两个类CBCentralManagerDelegate,CBPeripheralDelegate ,是蓝牙操作的核心类。
CBCentralManagerDelegate 中心管理器的代理类
CBPeripheralDelegate 外围设备的代理类
var myCentralManager:CBCentralManager!
myCentralManager = CBCentralManager()
myCentralManager.delegate = self
print("扫描设备。。。。 ") myCentralManager.scanForPeripheralsWithServices(nil, options: nil)
//蓝牙的状态
func centralManager(central: CBCentralManager, didDisconnectPeripheral peripheral: CBPeripheral, error: NSError?) {
switch (central.state) {
case CBCentralManagerState.PoweredOn:
print("蓝牙已打开, 请扫描外设!");
break;
case CBCentralManagerState.PoweredOff:
print("蓝牙关闭，请先打开蓝牙");
default:
break;
}
}
//发现设备
func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber) {
print("--didDiscoverPeripheral-")
if peripheral.name == DEVICENAME{
self.myPeripheral = peripheral;
self.myCentralManager = central;
central.connectPeripheral(self.myPeripheral, options: nil)
print(self.myPeripheral);
}
}
//设备已经接成功
func centralManager(central: CBCentralManager, didConnectPeripheral peripheral: CBPeripheral) {
print("---------didConnectPeripheral-")
print(central)
print(peripheral)
//关闭扫描
self.myCentralManager.stopScan()
self.myPeripheral.delegate = self
self.myPeripheral.discoverServices(nil)
print("扫描服务...");
}
/**
发现服务调用次方法
- parameter peripheral: <#peripheral description#>
- parameter error: <#error description#>
*/
func peripheral(peripheral: CBPeripheral, didDiscoverServices error: NSError?) {
print("---发现服务调用次方法-")
for s in peripheral.services!{
peripheral.discoverCharacteristics(nil, forService: s)
print(s.UUID.UUIDString)
}
}
/**
根据服务找特征
- parameter peripheral: <#peripheral description#>
- parameter service: <#service description#>
- parameter error: <#error description#>
*/
func peripheral(peripheral: CBPeripheral, didDiscoverCharacteristicsForService service: CBService, error: NSError?) {
print("----发现特征------")
for c in service.characteristics! {
if c.UUID.UUIDString == "2AF0"{
print(c.UUID.UUIDString)
peripheral.setNotifyValue(true, forCharacteristic: c)
}
if c.UUID.UUIDString == "2AF1"{
print(c.UUID.UUIDString)
self.writeCharacteristic = c
}
}
}
/**
写入后的回掉方法
- parameter peripheral: <#peripheral description#>
- parameter characteristic: <#characteristic description#>
- parameter error: <#error description#>
*/
func peripheral(peripheral: CBPeripheral, didWriteValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) {
print("didWriteValueForCharacteristic")
}
/**
<#设置特征为正在监听，读取数据#>
- parameter peripheral: <#peripheral description#>
- parameter characteristic: <#characteristic description#>
- parameter error: <#error description#>
*/
func peripheral(peripheral: CBPeripheral, didUpdateNotificationStateForCharacteristic characteristic: CBCharacteristic, error: NSError?) {
print("-----didUpdateNotificationStateForCharacteristic-----")
if (error != nil) {
print(error?.code);
}
//Notification has started
if(characteristic.isNotifying){
peripheral.readValueForCharacteristic(characteristic);
print(characteristic.UUID.UUIDString);
}
}
/**
获取外设的数据
- parameter peripheral: <#peripheral description#>
- parameter characteristic: <#characteristic description#>
- parameter error: <#error description#>
*/
func peripheral(peripheral: CBPeripheral, didUpdateValueForCharacteristic characteristic: CBCharacteristic, error: NSError?) {
print("----didUpdateValueForCharacteristic---")
if characteristic.UUID.UUIDString == "2AF0" {
let data:NSData = characteristic.value!
print(data)
let d = Array(UnsafeBufferPointer(start: UnsafePointer<UInt8>(data.bytes), count: data.length))
print(d)
let s:String = HexUtil.encodeToString(d)
if s != "00" {
result += s
print(result )
print(result.characters.count )
}
if result.characters.count == 38 {
lable.text = result
}
}
}
/**
发送指令到设备
*/
func writeToPeripheral(bytes:[UInt8]) {
if writeCharacteristic != nil {
let data1:NSData = dataWithHexstring(bytes)
self.myPeripheral.writeValue(data1, forCharacteristic: writeCharacteristic, type: CBCharacteristicWriteType.WithResponse)
} else{
}
}
/**
将[UInt8]数组转换为NSData
- parameter bytes: <#bytes description#>
- returns: <#return value description#>
*/
func dataWithHexstring(bytes:[UInt8]) -> NSData {
let data = NSData(bytes: bytes, length: bytes.count)
return data
}
使用Swift开发IOS中蓝牙4.0的开发流程基本就是如上两大步骤，六小步骤，如果有不明白，可以联系我。
注意：蓝牙调试代码只能真机，模拟器是没效果的。
代码地址:https://github.com/lidong1665/Swift-BLE
