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[英]How to store the custom data like CBPeripheral via nsuserdefaults in swift?
[英]How to store the custom data via nsuserdefaults in swift?
我正在用Swift開發。 我想通過nsuserdefaults
存儲自定義數據。
我的自定義數據如下
在ConnectedDevice.swift中
import UIKit
import Foundation
class ConnectedDevice {
var name:String?
var ConnectState:Bool=false
var AlertState:Int=0
var Battery:NSInteger=0
var AlertStatus:Int!
}
在ViewController.swift中
var userDefault = NSUserDefaults.standardUserDefaults()
var ConnDevice:[ConnectedDevice] = [ConnectedDevice]()
當我嘗試存儲數據時,我使用以下代碼:
userDefault.setValue(ConnDevice, forKey: "ConnectedDevice")
userDefault.synchronize()
當我嘗試加載數據時,我使用以下代碼:
var test = userDefault.objectForKey("ConnectedDevice")
if((test) != nil){
ConnDevice = test as! [ConnectedDevice]
}
但是當我嘗試通過nsuserdefaults
存儲數據時,它顯示如下錯誤日志。 似乎數據類型無效。
2016-08-24 17:17:50.315 Anti-Lost[471:212884] Attempt to set a non-property-list object (
"Anti_Lost.ConnectedDevice"
) as an NSUserDefaults/CFPreferences value for key ConnectedDevice
2016-08-24 17:17:50.318 Anti-Lost[471:212884] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Attempt to insert non-property list object (
"Anti_Lost.ConnectedDevice"
) for key ConnectedDevice'
我錯過了什么嗎? 如何通過nsuserdefaults
快速存儲自定義數據? - - - - - - - - - - - - - - - - - 編輯 - - - - - - - - ------------------
我將代碼修改如下:
在ConnectedDevice.swift中
import UIKit
import Foundation
import CoreBluetooth
import CoreLocation
class ConnectedDevice : NSObject , NSCoding{
var RSSI_threshold:NSNumber=0
var Current_RSSI:NSNumber=0
var name:String?
var bdAddr:NSUUID?
var ConnectState:Bool=false
var AlertState:Int=0
var BLEPeripheral : CBPeripheral!
var DisconnectAddress:[String] = [String]()
var DisconnectTime:[String] = [String]()
var Battery:NSInteger=0
var Location:[CLLocation] = [CLLocation]()
var AlertStatus:Int!
func encodeWithCoder(aCoder: NSCoder) {
aCoder.encodeObject(RSSI_threshold, forKey: "RSSI_threshold")
aCoder.encodeObject(Current_RSSI, forKey: "Current_RSSI")
aCoder.encodeObject(name, forKey: "name")
aCoder.encodeObject(bdAddr, forKey: "bdAddr")
aCoder.encodeBool(ConnectState, forKey: "ConnectState")
aCoder.encodeInteger(AlertState, forKey: "AlertState")
aCoder.encodeObject(BLEPeripheral, forKey: "BLEPeripheral")
aCoder.encodeObject(DisconnectAddress, forKey: "DisconnectAddress")
aCoder.encodeObject(DisconnectTime, forKey: "DisconnectTime")
aCoder.encodeObject(Battery, forKey: "Battery")
aCoder.encodeObject(Location, forKey: "Location")
aCoder.encodeObject(AlertStatus, forKey: "AlertStatus")
}
override init() {
}
required init?(coder aDecoder: NSCoder) {
self.RSSI_threshold = aDecoder.decodeObjectForKey("RSSI_threshold") as! NSNumber
self.Current_RSSI = aDecoder.decodeObjectForKey("Current_RSSI") as! NSNumber
self.name = aDecoder.decodeObjectForKey("name") as? String
self.bdAddr = aDecoder.decodeObjectForKey("bdAddr") as? NSUUID
self.ConnectState = aDecoder.decodeObjectForKey("ConnectState") as! Bool
self.AlertState = aDecoder.decodeObjectForKey("AlertState") as! Int
self.BLEPeripheral = aDecoder.decodeObjectForKey("BLEPeripheral") as! CBPeripheral
self.DisconnectAddress = aDecoder.decodeObjectForKey("DisconnectAddress") as! [String]
self.DisconnectTime = aDecoder.decodeObjectForKey("DisconnectTime") as! [String]
self.Battery = aDecoder.decodeObjectForKey("Battery") as! NSInteger
self.Location = aDecoder.decodeObjectForKey("Location") as! [CLLocation]
self.AlertStatus = aDecoder.decodeObjectForKey("AlertStatus") as! Int
}
}
我使用以下代碼存儲數據
let data = NSKeyedArchiver.archivedDataWithRootObject(ConnectedDevice)
NSUserDefaults.standardUserDefaults().setObject(data, forKey: "ConnectedDevice")
但是它將在aCoder.encodeObject(BLEPeripheral, forKey: "BLEPeripheral")
處顯示錯誤,並且錯誤日志為
2016-08-24 18:37:57.022 Anti-Lost[476:222607] -[CBPeripheral encodeWithCoder:]: unrecognized selector sent to instance 0x14e9fc60
2016-08-24 18:37:57.024 Anti-Lost[476:222607] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[CBPeripheral encodeWithCoder:]: unrecognized selector sent to instance 0x14e9fc60'
如何對CBPeripheral
進行編碼?
您的課程必須符合NSCoding協議,這是我的一個應用程序中的一個小樣本:
class BarData: NSObject, NSCoding {
let url: String
let date: NSDate
var isFavorite: Bool = false
init(url: String, date: NSDate) {
self.url = url
self.date = date
}
//MARK: - NSCoding -
@objc required init(coder aDecoder: NSCoder) {
url = aDecoder.decodeObjectForKey("url") as! String
date = aDecoder.decodeObjectForKey("date") as! NSDate
isFavorite = aDecoder.decodeBoolForKey("isFavorite")
}
@objc func encodeWithCoder(aCoder: NSCoder) {
aCoder.encodeObject(url, forKey: "url")
aCoder.encodeObject(date, forKey: "date")
aCoder.encodeBool(isFavorite, forKey: "isFavorite")
}
}
嘗試使用userDefault.setObject(ConnDevice, forKey: "ConnectedDevice")
而不是userDefault.setValue(ConnDevice, forKey: "ConnectedDevice")
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