【发布时间】：2016-06-21 00:24:32
【问题描述】：
有类似的问题，但没有一个能回答我的问题。
我正在使用 Swift 2.0 我正在开发一个使用 CoreLocation 显示经度和纬度的项目。
我还使用社交框架在 twitter 和 facebook 上发帖。
我收到一条错误消息，上面写着“错误：链接器命令失败，退出代码为 1”，然后它告诉我“（使用 -v 来查看调用）”，但我不明白这一点。
我将在 SO 上给出一个答案，以编写位置服务部分。这是链接https://stackoverflow.com/a/24696878/6140339
这是我的代码：
import UIKit
import Social
import CoreLocation
@UIApplicationMain
class FirstViewController: UIViewController, CLLocationManagerDelegate, UIApplicationDelegate {
var window: UIWindow?
var locationManager: CLLocationManager!
var seenError : Bool = false
var locationFixAchieved: Bool = false
var locationStatus : NSString = "Not Started"
func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject : AnyObject]?) -> Bool {
initLocationManager();
return true
}
func initLocationManager() {
seenError = false
locationFixAchieved = false
locationManager = CLLocationManager()
locationManager.delegate = self
CLLocationManager.locationServicesEnabled()
locationManager.desiredAccuracy = kCLLocationAccuracyBest
locationManager.requestAlwaysAuthorization()
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
locationManager.stopUpdatingLocation()
if (error == true) {
if (seenError == false) {
seenError = true
print(error)
}
}
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
if (locationFixAchieved == false) {
locationFixAchieved = true
let locationArray = locations as NSArray
let locationObj = locationArray.lastObject as! CLLocation
let coord = locationObj.coordinate
print(coord.latitude)
print(coord.longitude)
}
}
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
var shouldIAllow = false
switch status {
case CLAuthorizationStatus.Restricted:
locationStatus = "Restricted Access to location"
case CLAuthorizationStatus.Denied:
locationStatus = "User denied access to location"
case CLAuthorizationStatus.NotDetermined:
locationStatus = "Status not determined"
default:
locationStatus = "Allowed to location Access"
shouldIAllow = true
}
NSNotificationCenter.defaultCenter().postNotificationName("LabelHasBeenUpdated", object: nil)
if (shouldIAllow == true) {
NSLog("Location to Allowed")
//Start location services
locationManager.startUpdatingLocation()
} else {
NSLog("Denied access: \(locationStatus)")
}
}
@IBAction func postToFacebookButton(sender: UIButton) {
if(SLComposeViewController.isAvailableForServiceType(SLServiceTypeFacebook)){
let socialController = SLComposeViewController(forServiceType: SLServiceTypeFacebook)
//creates post with pre-desired text
socialController.setInitialText("")
self.presentViewController(socialController, animated: true, completion: nil)
}
}
@IBAction func postTweetButton(sender: UIButton) {
if(SLComposeViewController.isAvailableForServiceType(SLServiceTypeTwitter)){
let socialController = SLComposeViewController(forServiceType: SLServiceTypeTwitter)
//creates post with pre-desired text
socialController.setInitialText("")
self.presentViewController(socialController, animated: true, completion: nil)
}
}
override func preferredStatusBarStyle() -> UIStatusBarStyle {
return .LightContent
}
override func viewDidLoad() {
super.viewDidLoad()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
//layer.cornerRadius layer.cornerRadius
}
整个错误信息：
重复符号_main： /Users/user/Library/Developer/Xcode/DerivedData/FarOut-ekrxzlgzfahpruavmlhyhiwiynum/Build/Intermediates/FarOut.build/Debug-iphonesimulator/FarOut.build/Objects-normal/x86_64/AppDelegate.o /Users/user/Library/Developer/Xcode/DerivedData/FarOut-ekrxzlgzfahpruavmlhyhiwiynum/Build/Intermediates/FarOut.build/Debug-iphonesimulator/FarOut.build/Objects-normal/x86_64/FirstViewController.o ld：架构 x86_64 的 1 个重复符号 clang：错误：链接器命令失败，退出代码为 1（使用 -v 查看调用）
【问题讨论】：
-
如果您选择项目导航器中的最后一个图标（语音气泡），然后展开“构建”日志，您可以看到链接器输出。查找红色链接器错误并单击以展开该文本；它应该显示链接器无法完成的原因
标签： ios swift core-location location-services