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这是一款我已经为iPhone制作的应用程序，并且希望将它用于Apple Watch。Swift：Watchkit Table not populating
我有一个函数，它使用SwiftyJSON来解析JSON并收集我用来填充我的表的各种信息。在willActiviate中，我循环遍历所有行并将它们编入索引以获取需要显示在标签上的信息。或者至少，这就是我想要做的。当我运行它时，会显示正确数量的标签，但标签不显示任何内容。我也创建了loadTableData（）来手动重新加载tableData。
如果我在尝试填充它时做了一些完全错误的事情，或者如果我在做其他事情时出错，请向正确方向指出一点。
我的代码：
@IBOutlet weak var earthTable: WKInterfaceTable!
private func loadTableData() {
getEarthquakeInfo { (info) in
self.earthTable.setNumberOfRows(0, withRowType: "earthquake")
self.earthTable.setNumberOfRows(info.count, withRowType: "earthquake")
}
}
override func awakeWithContext(context: AnyObject?) {
super.awakeWithContext(context)
self.loadTableData()
}
override func willActivate() {
// This method is called when watch view controller is about to be visible to user
super.willActivate()
for index in 0..<self.earthTable.numberOfRows {
var currentRow = self.earthTable.rowControllerAtIndex(index) as earthquakeViewController
let time = info[self.earthTable.indexOfAccessibilityElement(currentRow)].time
let mag = info[self.earthTable.indexOfAccessibilityElement((currentRow))].mag
let title = info[self.earthTable.indexOfAccessibilityElement(currentRow)].title
currentRow.titleLabel.setText("\(title)")
currentRow.timeLabel.setText("\(time)")
currentRow.magLabel.setText("\(mag)")
}
}
override func didDeactivate() {
// This method is called when watch view controller is no longer visible
super.didDeactivate()
}
}
我的整个功能，我解析JSON如果需要的话：
，我用（如果需要）class InterfaceController: WKInterfaceController {
var info = [AppModel]()
func getEarthquakeInfo(completion: (results : [AppModel]) ->Void){
DataManager.getEarthquakeDataFromFileWithSuccess {
(data) -> Void in
let json = JSON(data: data)
if var JsonArray = json.array {
JsonArray.removeAtIndex(0)
for appDict in JsonArray {
// parsing
var ids: String? = appDict["id"].stringValue
var title: String? = appDict["title"].stringValue
var time: String = appDict["time"].stringValue
var lattitude: String? = appDict["lat"].stringValue
var longitude: String? = appDict["lng"].stringValue
var north: String? = appDict["north"].stringValue
var west: String? = appDict["west"].stringValue
var mag: String? = appDict["mag"].stringValue
var depth: String? = appDict["depth"].stringValue
var timeStamp: String? = appDict["timestamp"].stringValue
// Splitting up title string into 2 parts
let newString = title!.stringByReplacingOccurrencesOfString(" ", withString: " - ", options: NSStringCompareOptions.LiteralSearch, range: nil)
var title2strings = newString.componentsSeparatedByString(" - ")
var scale = title2strings[0]
var location = title2strings[1]
// replacing M in scale string with Richter Scale
let scaleString = scale.stringByReplacingOccurrencesOfString("ML", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString2 = scaleString.stringByReplacingOccurrencesOfString("mb", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString3 = scaleString2.stringByReplacingOccurrencesOfString("Mw", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString4 = scaleString3.stringByReplacingOccurrencesOfString("MD", withString: "Magnitude", options: NSStringCompareOptions.LiteralSearch, range: nil)
let scaleString5 = scaleString4.stringByReplacingOccurrencesOfString("M ", withString: "Magnitude ", options: NSStringCompareOptions.LiteralSearch, range: nil)
//Formatting the date
var date = NSDate(dateString: time).getDatePart()
// Collecting all the information
var information = AppModel(idEarth: ids, title: title, time: date, lat: lattitude, lng: longitude, north: north!, west: west, mag: mag, depth: depth, timeStamp: timeStamp, location: location, scale: scaleString5)
self.info.append(information)
//sorting array by highest magnitude
// self.info.sort({$0.mag > $1.mag})
// returning the completion handler
completion(results: self.info)
}
}
}
}
我AppModel文件：
import Foundation
import WatchKit
class AppModel: NSObject, Printable {
let idEarth: String
let title: String
let time: String
let lat: String
let lng: String
let north: String
let west: String
let mag: String
let depth: String
let timeStamp: String
let scale: String
let location: String
override var description: String {
return "ID: \(idEarth), TITLE: \(title), TIME: \(time), LAT: \(lat), LNG: \(lng), NORTH: \(north), WEST: \(west), MAG: \(mag), DEPTH: \(depth), TIMESTAMP: \(timeStamp), LOCATION: \(location), SCALE: \(scale) \n"
}
init(idEarth: String?, title: String?, time: String?, lat: String?, lng: String?, north: String, west: String?, mag: String?, depth: String?, timeStamp: String?, location: String?, scale: String?) {
self.idEarth = idEarth ?? ""
self.title = title ?? ""
self.time = time ?? ""
self.lat = lat ?? ""
self.lng = lng ?? ""
self.north = north ?? ""
self.west = west ?? ""
self.mag = mag ?? ""
self.depth = depth ?? ""
self.timeStamp = timeStamp ?? ""
self.location = location ?? ""
self.scale = scale ?? ""
}
}
感谢您的帮助！ （是的，当我设置两次行数时，我实在不知道我在想什么）。虽然现在我运行它，但是在'let time = info [self.earthTable.indexOfAccessibilityElement（currentRow）]。时出现一个错误，它显示“致命错误：数组索引超出范围”。我索引它错了吗？ – videoperson
难道你不能试着用'i'来代替'self.earthTable.indexOfAccessibilityElement（currentRow）'，因为你已经有索引了吗？ – Jaeger
修好了！谢谢！ – videoperson