我正在学习Swift，而我正在尝试为TI SensorTag 2开发应用程序。
我跟随this code，但当然我想更改视图控制器，只保留SensorTag类。
我的想法是有传感器连接的入口视图，然后，当检测到传感器时，应用程序移动到选项卡式视图，在每个选项卡中我都有读数（温度，陀螺仪，勒克斯等）。
我从这个视图控制器开始：
import UIKit
import CoreBluetooth
class ViewController: UIViewController, CBCentralManagerDelegate, CBPeripheralDelegate, UITableViewDataSource, UITableViewDelegate {
// Title labels
var titleLabel : UILabel!
var statusLabel : UILabel!
// BLE
var centralManager : CBCentralManager!
var sensorTagPeripheral : CBPeripheral!
// Table View
var sensorTagTableView : UITableView!
// Sensor Values
var allSensorLabels : [String] = []
var allSensorValues : [Double] = []
var ambientTemperature : Double!
var objectTemperature : Double!
var accelerometerX : Double!
var accelerometerY : Double!
var accelerometerZ : Double!
var relativeHumidity : Double!
var magnetometerX : Double!
var magnetometerY : Double!
var magnetometerZ : Double!
var gyroscopeX : Double!
var gyroscopeY : Double!
var gyroscopeZ : Double!
override func viewDidLoad() {
super.viewDidLoad()
// Do any additional setup after loading the view, typically from a nib.
// Initialize central manager on load
centralManager = CBCentralManager(delegate: self, queue: nil)
// Set up title label
titleLabel = UILabel()
titleLabel.text = "Sensor Tag"
titleLabel.font = UIFont(name: "HelveticaNeue-Bold", size: 20)
titleLabel.sizeToFit()
titleLabel.center = CGPoint(x: self.view.frame.midX, y: self.titleLabel.bounds.midY+28)
self.view.addSubview(titleLabel)
// Set up status label
statusLabel = UILabel()
statusLabel.textAlignment = NSTextAlignment.Center
statusLabel.text = "Loading..."
statusLabel.font = UIFont(name: "HelveticaNeue-Light", size: 12)
statusLabel.sizeToFit()
//statusLabel.center = CGPoint(x: self.view.frame.midX, y: (titleLabel.frame.maxY + statusLabel.bounds.height/2) )
statusLabel.frame = CGRect(x: self.view.frame.origin.x, y: self.titleLabel.frame.maxY, width: self.view.frame.width, height: self.statusLabel.bounds.height)
self.view.addSubview(statusLabel)
// Set up table view
setupSensorTagTableView()
// Initialize all sensor values and labels
allSensorLabels = SensorTag.getSensorLabels()
for (var i=0; i<allSensorLabels.count; i++) {
allSensorValues.append(0)
}
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
/******* CBCentralManagerDelegate *******/
// Check status of BLE hardware
func centralManagerDidUpdateState(central: CBCentralManager!) {
if central.state == CBCentralManagerState.PoweredOn {
// Scan for peripherals if BLE is turned on
central.scanForPeripheralsWithServices(nil, options: nil)
self.statusLabel.text = "Searching for BLE Devices"
}
else {
// Can have different conditions for all states if needed - show generic alert for now
showAlertWithText(header: "Error", message: "Bluetooth switched off or not initialized")
}
}
// Check out the discovered peripherals to find Sensor Tag
func centralManager(central: CBCentralManager!, didDiscoverPeripheral peripheral: CBPeripheral!, advertisementData: [NSObject : AnyObject]!, RSSI: NSNumber!) {
if SensorTag.sensorTagFound(advertisementData) == true {
// Update Status Label
self.statusLabel.text = "Sensor Tag Found"
// Stop scanning, set as the peripheral to use and establish connection
self.centralManager.stopScan()
self.sensorTagPeripheral = peripheral
self.sensorTagPeripheral.delegate = self
self.centralManager.connectPeripheral(peripheral, options: nil)
}
else {
self.statusLabel.text = "Sensor Tag NOT Found"
//showAlertWithText(header: "Warning", message: "SensorTag Not Found")
}
}
// Discover services of the peripheral
func centralManager(central: CBCentralManager!, didConnectPeripheral peripheral: CBPeripheral!) {
self.statusLabel.text = "Discovering peripheral services"
peripheral.discoverServices(nil)
}
// If disconnected, start searching again
func centralManager(central: CBCentralManager!, didDisconnectPeripheral peripheral: CBPeripheral!, error: NSError!) {
self.statusLabel.text = "Disconnected"
central.scanForPeripheralsWithServices(nil, options: nil)
}
/******* CBCentralPeripheralDelegate *******/
// Check if the service discovered is valid i.e. one of the following:
// IR Temperature Service
// Accelerometer Service
// Humidity Service
// Magnetometer Service
// Barometer Service
// Gyroscope Service
// (Others are not implemented)
func peripheral(peripheral: CBPeripheral!, didDiscoverServices error: NSError!) {
self.statusLabel.text = "Looking at peripheral services"
for service in peripheral.services {
let thisService = service as CBService
if SensorTag.validService(thisService) {
// Discover characteristics of all valid services
peripheral.discoverCharacteristics(nil, forService: thisService)
}
}
}
// Enable notification and sensor for each characteristic of valid service
func peripheral(peripheral: CBPeripheral!, didDiscoverCharacteristicsForService service: CBService!, error: NSError!) {
self.statusLabel.text = "Enabling sensors"
var enableValue = 1
let enablyBytes = NSData(bytes: &enableValue, length: sizeof(UInt8))
for charateristic in service.characteristics {
let thisCharacteristic = charateristic as CBCharacteristic
if SensorTag.validDataCharacteristic(thisCharacteristic) {
// Enable Sensor Notification
self.sensorTagPeripheral.setNotifyValue(true, forCharacteristic: thisCharacteristic)
}
if SensorTag.validConfigCharacteristic(thisCharacteristic) {
// Enable Sensor
self.sensorTagPeripheral.writeValue(enablyBytes, forCharacteristic: thisCharacteristic, type: CBCharacteristicWriteType.WithResponse)
}
}
}
// Get data values when they are updated
func peripheral(peripheral: CBPeripheral!, didUpdateValueForCharacteristic characteristic: CBCharacteristic!, error: NSError!) {
self.statusLabel.text = "Connected"
if characteristic.UUID == IRTemperatureDataUUID {
self.ambientTemperature = SensorTag.getAmbientTemperature(characteristic.value)
self.objectTemperature = SensorTag.getObjectTemperature(characteristic.value, ambientTemperature: self.ambientTemperature)
self.allSensorValues[0] = self.ambientTemperature
self.allSensorValues[1] = self.objectTemperature
}
else if characteristic.UUID == AccelerometerDataUUID {
let allValues = SensorTag.getAccelerometerData(characteristic.value)
self.accelerometerX = allValues[0]
self.accelerometerY = allValues[1]
self.accelerometerZ = allValues[2]
self.allSensorValues[2] = self.accelerometerX
self.allSensorValues[3] = self.accelerometerY
self.allSensorValues[4] = self.accelerometerZ
}
else if characteristic.UUID == HumidityDataUUID {
self.relativeHumidity = SensorTag.getRelativeHumidity(characteristic.value)
self.allSensorValues[5] = self.relativeHumidity
}
else if characteristic.UUID == MagnetometerDataUUID {
let allValues = SensorTag.getMagnetometerData(characteristic.value)
self.magnetometerX = allValues[0]
self.magnetometerY = allValues[1]
self.magnetometerZ = allValues[2]
self.allSensorValues[6] = self.magnetometerX
self.allSensorValues[7] = self.magnetometerY
self.allSensorValues[8] = self.magnetometerZ
}
else if characteristic.UUID == GyroscopeDataUUID {
let allValues = SensorTag.getGyroscopeData(characteristic.value)
self.gyroscopeX = allValues[0]
self.gyroscopeY = allValues[1]
self.gyroscopeZ = allValues[2]
self.allSensorValues[9] = self.gyroscopeX
self.allSensorValues[10] = self.gyroscopeY
self.allSensorValues[11] = self.gyroscopeZ
}
else if characteristic.UUID == BarometerDataUUID {
//println("BarometerDataUUID")
}
self.sensorTagTableView.reloadData()
}
/******* UITableViewDataSource *******/
func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return allSensorLabels.count
}
/******* UITableViewDelegate *******/
func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
var thisCell = tableView.dequeueReusableCellWithIdentifier("sensorTagCell") as SensorTagTableViewCell
thisCell.sensorNameLabel.text = allSensorLabels[indexPath.row]
var valueString = NSString(format: "%.2f", allSensorValues[indexPath.row])
thisCell.sensorValueLabel.text = valueString
return thisCell
}
/******* Helper *******/
// Show alert
func showAlertWithText (header : String = "Warning", message : String) {
var alert = UIAlertController(title: header, message: message, preferredStyle: UIAlertControllerStyle.Alert)
alert.addAction(UIAlertAction(title: "Ok", style: UIAlertActionStyle.Default, handler: nil))
alert.view.tintColor = UIColor.redColor()
self.presentViewController(alert, animated: true, completion: nil)
}
// Set up Table View
func setupSensorTagTableView () {
self.sensorTagTableView = UITableView()
self.sensorTagTableView.delegate = self
self.sensorTagTableView.dataSource = self
self.sensorTagTableView.frame = CGRect(x: self.view.bounds.origin.x, y: self.statusLabel.frame.maxY+20, width: self.view.bounds.width, height: self.view.bounds.height)
self.sensorTagTableView.registerClass(SensorTagTableViewCell.self, forCellReuseIdentifier: "sensorTagCell")
self.sensorTagTableView.tableFooterView = UIView() // to hide empty lines after cells
self.view.addSubview(self.sensorTagTableView)
}
}
如何将sensorTag对象传递给TabBar控制器？
答案 0 :(得分：0)
我想知道你是什么意思＆＃34; TI SensorTag 2＆＃34;，它是指第二代TIsensortag？ Sensortag2541是第一代，而Sensortag2650是第二代。
我相信这个快速代码仅适用于2541，这可能是您的代码可能无法正常工作的原因。 如果您可以使用任何快速代码连接2650，请告诉我。感谢。