我正在编写代码来连接到BLE设备，然后将它们列在表中以连接或断开它们。我对外围设备和经理角色感到满意，并了解如何访问BLE设备。以前我使用过NSNotifications，但宁愿让代表们管理通知。
下面的代码很简单，就扫描设备然后提示代表而言，但代表没有响应。
请帮忙......
代表
import UIKit
import CoreBluetooth
protocol BLEDelegate {
func bleDidConnectToPeripheral(sender: BLEDiscovery, peripheral: CBPeripheral)
}
let bleDiscoverySharedInstance = BLEDiscovery()
//MARK: - UUIDS for StingRay Genessis M (SRG)
let StingRayGenesisMUUID = CBUUID (string: "346D0000-12A9-11CF-1279-81F2B7A91332") //Core UUID
//MARK: - UUIDS for StingRay Genessis HR (SRG)
let StingRayGenesisHRUUID = CBUUID (string: "F9AB0000-3F75-4668-9BAC-F8264DAE7820") //Core UUID
//MARK: - Device and Characteristic Registers
var BLEDevices : [CBPeripheral] = [] //Device Array
var BLECharDictionary = [String: CBCharacteristic]() //Characteristic Dictionary
class BLEDiscovery: NSObject, CBCentralManagerDelegate {
private var centralManager : CBCentralManager?
var delegate: BLEDelegate?
override init() {
super.init()
let centralStingRayBLEQueue = dispatch_queue_create("com.stingray", DISPATCH_QUEUE_SERIAL)
centralManager = CBCentralManager(delegate: self, queue: centralStingRayBLEQueue)
}
// MARK: - CB centralManager
func centralManagerDidUpdateState(central: CBCentralManager) {
switch (central.state) {
case CBCentralManagerState.PoweredOff:
print("CBCentralManagerState.PoweredOff")
case CBCentralManagerState.Unauthorized:
// Indicate to user that the iOS device does not support BLE.
print("CBCentralManagerState.Unauthorized")
break
case CBCentralManagerState.Unknown:
// Wait for another event
print("CBCentralManagerState.Unknown")
break
case CBCentralManagerState.PoweredOn:
print("CBCentralManagerState.PoweredOn")
self.startScanning()
case CBCentralManagerState.Resetting:
print("CBCentralManagerState.Resetting")
case CBCentralManagerState.Unsupported:
print("CBCentralManagerState.Unsupported")
break
}
}
// MARK: - Start scanning for StringRay devices with the appropriate UUID
func startScanning() {
if let central = centralManager {
central.scanForPeripheralsWithServices([StingRayGenesisMUUID,StingRayGenesisHRUUID], options: nil)
}
}
// MARK: - CB Central Manager - Did discover peripheral (follows : startScanning)
func centralManager(central: CBCentralManager, didDiscoverPeripheral peripheral: CBPeripheral, advertisementData: [String : AnyObject], RSSI: NSNumber) {
delegate?.bleDidConnectToPeripheral(self, peripheral: peripheral)
//Check if new discovery and append to BLEDevices where required
if BLEDevices.contains(peripheral) {
print("didDiscoverPeripheral - ALREADY DISCOVERED ==", peripheral.name)
}
else{
BLEDevices.append(peripheral)
print("didDiscoverPeripheral - NEW DISCOVERY ==", peripheral.name)
}
}
// MARK: - CB Central Manager - Connect and Disconnet BLE Devices
func connectBLEDevice (peripheral: CBPeripheral){
//Connect
self.centralManager!.connectPeripheral(peripheral, options: nil)
}
func disconnectBLEDevice (peripheral: CBPeripheral){
//Disconnect
self.centralManager?.cancelPeripheralConnection(peripheral)
}
}
委托者
import UIKit
import CoreBluetooth
class MainViewController: UIViewController,UITableViewDelegate,UITableViewDataSource, BLEDelegate {
//MARK: - View Object Links
@IBOutlet weak var deviceTableView: UITableView!
@IBOutlet weak var infoBlockView: UIView!
// MARK: - Interface Builder Inspectables
@IBInspectable var BorderWidth : CGFloat = 0.75
@IBInspectable var BorderRadius : CGFloat = 5.0
@IBInspectable var BorderColor : UIColor = UIColor.whiteColor()
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view.
formatDeviceTableView()
formatInFoBlock()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/*
// MARK: - Navigation
// In a storyboard-based application, you will often want to do a little preparation before navigation
override func prepareForSegue(segue: UIStoryboardSegue, sender: AnyObject?) {
// Get the new view controller using segue.destinationViewController.
// Pass the selected object to the new view controller.
}
*/
func bleDidConnectToPeripheral(sender: BLEDiscovery, peripheral: CBPeripheral) {
print ("Its alive == ", peripheral.name)
}
// MARK: - View Fomrating
func formatInFoBlock(){
infoBlockView.layer.borderColor = BorderColor.CGColor
infoBlockView.layer.cornerRadius = BorderRadius
infoBlockView.layer.borderWidth = BorderWidth
}
// MARK: - TableView Functions
func formatDeviceTableView() {
deviceTableView.layer.borderColor = BorderColor.CGColor
deviceTableView.layer.cornerRadius = BorderRadius
deviceTableView.layer.borderWidth = BorderWidth
}
func numberOfSectionsInTableView(tableView: UITableView) -> Int {
return 1
}
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 10
}
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
//Define a cell and assign it to DeviceTableCellTableViewCell class and use the reuse identifier from IB - "deviceCell"
let cell = deviceTableView.dequeueReusableCellWithIdentifier("deviceCell") as! DeviceTableCellTableViewCell
cell.backgroundColor = UIColor.clearColor()
cell.deviceNameLabel.text = String(indexPath.row)
return cell
}
func tableView(tableView: UITableView, didSelectRowAtIndexPath indexPath: NSIndexPath) {
print("Row Selected ::", indexPath.row)
}
func tableView(tableView: UITableView, accessoryButtonTappedForRowWithIndexPath indexPath: NSIndexPath) {
print("Accesory Selected ::", indexPath.row)
}
}
我希望代码只是打印出“它活着......”，告诉我它正在工作......
答案 0 :(得分：1)
var delegate: BLEDelegate?;中的委托文件中添加＆＃34;弱＆＃34;它： weak var delegate: BLEDelegate?;
将let bleDiscoverySharedInstance = BLEDiscovery();从委托移至委托人。
完成向viewDidLoad添加：bleDiscoverySharedInstance.delegate = self;，让它知道该代表。
如果您想要在下面的链接中，您有一个非常类似的例子可以使用代理：https://bitbucket.org/vicrius/flickr-visualizer/src
希望这一切都有所帮助。