我有一个应用，用户可以通过不同的方式添加位置。 一种是通过在地图上录制而另一种是通过点击按钮来获取其位置。 所有这些都存储在tableview中，用户可以按下tableView中的位置返回到地图上的位置。 第一部分效果很好但是当我尝试使用按钮时，该地方保存到tableView（女巫是完美的）但是当我点击它回到保存的地方时，应用程序崩溃并且我得到了致命错误：数组索引超出范围＆＃34;。我一直试图找到一个解决方案，但仍然没有发现如何。这是代码，如果您需要更多帮助我，请告诉我。
请注意我的活动位置不是空的，因为这是我在调试区域中得到的：
activePlaces current value is 1
activePlaces current value is 1
activePlaces current value is (activePlaces)
activePlaces current value is -1
[<+37.33131185,-122.03075659> +/- 30.00m (speed 7.87 mps / course 176.86) @ 6/8/16, 6:54:38 PM Central European Summer Time]
[<+37.33131185,-122.03075659> +/- 30.00m (speed 7.87 mps / course 176.86) @ 6/8/16, 6:54:38 PM Central European Summer Time]
[<+37.33131185,-122.03075659> +/- 30.00m (speed 7.87 mps / course 176.86) @ 6/8/16, 6:54:38 PM Central European Summer Time]
[<+37.33115792,-122.03076853> +/- 30.00m (speed 8.33 mps / course 178.34) @ 6/8/16, 6:54:38 PM Central European Summer Time]
[<+37.33115792,-122.03076853> +/- 30.00m (speed 8.33 mps / course 178.34) @ 6/8/16, 6:54:38 PM Central European Summer Time]
[<+37.33107980,-122.03077250> +/- 30.00m (speed 8.20 mps / course 177.87) @ 6/8/16, 6:54:39 PM Central European Summer Time]
[<+37.33100231,-122.03077622> +/- 30.00m (speed 8.20 mps / course 178.34) @ 6/8/16, 6:54:40 PM Central European Summer Time]
[<+37.33092521,-122.03077056> +/- 10.00m (speed 8.34 mps / course 173.92) @ 6/8/16, 6:54:41 PM Central European Summer Time]
[<+37.33085898,-122.03075862> +/- 10.00m (speed 7.23 mps / course 170.25) @ 6/8/16, 6:54:42 PM Central European Summer Time]
[<+37.33079800,-122.03072881> +/- 10.00m (speed 7.11 mps / course 157.66) @ 6/8/16, 6:54:43 PM Central European Summer Time]
[<+37.33074557,-122.03069850> +/- 10.00m (speed 6.29 mps / course 155.33) @ 6/8/16, 6:54:44 PM Central European Summer Time]
[<+37.33069642,-122.03066881> +/- 10.00m (speed 5.94 mps / course 156.32) @ 6/8/16, 6:54:45 PM Central European Summer Time]
[<+37.33065643,-122.03064682> +/- 10.00m (speed 4.77 mps / course 157.35) @ 6/8/16, 6:54:46 PM Central European Summer Time]
[<+37.33063636,-122.03063618> +/- 10.00m (speed 2.27 mps / course 158.84) @ 6/8/16, 6:54:47 PM Central European Summer Time]
[<+37.33061331,-122.03062365> +/- 10.00m (speed 1.90 mps / course 159.97) @ 6/8/16, 6:54:48 PM Central European Summer Time]
[<+37.33058184,-122.03060705> +/- 10.00m (speed 2.83 mps / course 160.58) @ 6/8/16, 6:54:49 PM Central European Summer Time]
activePlaces current value is 2
activePlaces current value is 2
fatal error: Index out of range
(lldb)
在tableView中：
var places = [Dictionary<String,String>()]
var activePlace = -1
alert.addAction(UIAlertAction(title: "OK", style: .Default, handler: { (action) -> Void in
let lat = places[indexPath]["lat"]!
let lon = places[indexPath]["lon"]!
places.removeAtIndex(indexPath)
places.insert(["name" : alert.textFields![0].text!, "lat" : lat, "lon" : lon], atIndex: indexPath)
self.tableView.reloadData()
NSUserDefaults.standardUserDefaults().setObject(places, forKey: "places")
NSUserDefaults.standardUserDefaults().synchronize()
我也有这个，仍然在tableView
中 override func tableView(tableView: UITableView, willSelectRowAtIndexPath indexPath: NSIndexPath) -> NSIndexPath? {
activePlace = indexPath.row
return indexPath
}
@IBAction func addCurentLoc(sender: UIBarButtonItem) {
var newCoordinate2 = self.Map.userLocation.location!.coordinate;
var location = CLLocation(latitude: newCoordinate2.latitude, longitude: newCoordinate2.longitude)
//title = "new address"
let annotation = MKPointAnnotation();
annotation.title = title;
annotation.coordinate = self.Map.userLocation.location!.coordinate;
CLGeocoder().reverseGeocodeLocation(location) { (placemarks, error) -> Void in
var title = ""
if (error == nil) {
if let p = placemarks?[0] {
var subThouroughfare:String = ""
var thouroughfare:String = ""
if p.subThoroughfare != nil {
subThouroughfare = p.subThoroughfare!
}
if p.thoroughfare != nil {
thouroughfare = p.thoroughfare!
}
title = "\(subThouroughfare) \(thouroughfare)"
}
}
if title == "" {
title = "Added \(NSDate())"
}
places.append(["name":title,"lat":"\(newCoordinate2.latitude)","lon":"\(newCoordinate2.longitude)"])
let annotation = MKPointAnnotation()
annotation.coordinate = newCoordinate2
annotation.title = title
self.Map.addAnnotation(annotation)
}
self.Map.addAnnotation(annotation);
func mapView(mapView: MKMapView!,
viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView!{
if(annotation is MKUserLocation){
return nil;
}
// let pinView: Void = mapView.addAnnotation(annotation);
let pinAnnotationView = MKPinAnnotationView(annotation: annotation,reuseIdentifier:"MyIdentifier");
return pinAnnotationView;
}
if activePlace == -1 {
manager.requestWhenInUseAuthorization()
manager.startUpdatingLocation()
} else {
print（＆＃34; activePlaces当前值为（activePlace）＆＃34;）
let latitude = NSString(string: places[activePlace]["lat"]!).doubleValue
let longitude = NSString(string: places[activePlace]["lon"]!).doubleValue
let coordinate = CLLocationCoordinate2DMake(latitude, longitude)
let latDelta:CLLocationDegrees = 0.01
let lonDelta:CLLocationDegrees = 0.01
let span:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, lonDelta)
let region:MKCoordinateRegion = MKCoordinateRegionMake(coordinate, span)
self.Map.setRegion(region, animated: true)
let annotation = MKPointAnnotation()
annotation.coordinate = coordinate
annotation.title = places[activePlace]["name"]
self.Map.addAnnotation(annotation)
}
}
错误发生在
上let latitude = NSString（string：places [activePlace] [＆＃34; lat＆＃34;]！）。doubleValue
女巫说＆＃34; EXC_BAD_INSTRUCTION（代码= EXC_I386_INVOP，子代码= 0x0）＆＃34;