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import UIKit
@UIApplicationMain
class AppDelegate: UIResponder, UIApplicationDelegate {
var window: UIWindow?
func application(application: UIApplication,
didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
//开启通知
let settings = UIUserNotificationSettings(forTypes: [.Alert, .Badge, .Sound],
categories: nil)
application.registerUserNotificationSettings(settings)
return true
}
func applicationWillResignActive(application: UIApplication) {
}
func applicationDidEnterBackground(application: UIApplication) {
//虽然定义了后台获取的最短时间，但iOS会自行以它认定的最佳时间来唤醒程序，这个我们无法控制
//UIApplicationBackgroundFetchIntervalMinimum 尽可能频繁的调用我们的Fetch方法
application.setMinimumBackgroundFetchInterval(UIApplicationBackgroundFetchIntervalMinimum)
}
func applicationWillEnterForeground(application: UIApplication) {
}
func applicationDidBecomeActive(application: UIApplication) {
}
func applicationWillTerminate(application: UIApplication) {
}
//后台获取数据
func application(application: UIApplication,
performFetchWithCompletionHandler completionHandler: (UIBackgroundFetchResult) -> Void) {
//创建NSURL对象
let url:NSURL! = NSURL(string:"http://api.k780.com:88/?app=life.time&appkey=10003&sign=b59bc3ef6191eb9f747dd4e83c99f2a4&format=json")
//创建请求对象
let request:NSURLRequest = NSURLRequest(URL: url)
let session = NSURLSession.sharedSession()
let dataTask = session.dataTaskWithRequest(request,
completionHandler: {(data, response, error) -> Void in
if error != nil{
print(error?.code)
print(error?.description)
//让OS知道获取数据失败
completionHandler(UIBackgroundFetchResult.Failed)
}else{
let str = NSString(data: data!, encoding: NSUTF8StringEncoding)
print(str)
//清除所有本地推送
//UIApplication.sharedApplication().cancelAllLocalNotifications()
//创建UILocalNotification来进行本地消息通知
let localNotification = UILocalNotification()
//推送时间（立刻推送）
localNotification.fireDate = NSDate(timeIntervalSinceNow: 0)
//时区
localNotification.timeZone = NSTimeZone.defaultTimeZone()
//推送内容
localNotification.alertBody = "获取时间成功：\(str)"
//声音
localNotification.soundName = UILocalNotificationDefaultSoundName
UIApplication.sharedApplication().scheduleLocalNotification(localNotification)
//让OS知道已经获取到新数据
completionHandler(UIBackgroundFetchResult.NewData)
//completionHandler(UIBackgroundFetchResult.NoData)
}
}) as NSURLSessionTask
//使用resume方法启动任务
dataTask.resume()
}
}
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