【发布时间】:2015-09-04 14:04:38
【问题描述】:
我正在使用推送通知在 Swift 中开发一个应用程序。到目前为止,我的 AppDelegate 中有以下代码:
func application(application: UIApplication, didReceiveRemoteNotification userInfo: [NSObject : AnyObject]) {
println("Received alert and opened it")
debugPrintln(userInfo)
if application.applicationState == UIApplicationState.Active {
// App in foreground
println("App in foreground already")
} else {
// App in background
if let tripId = (userInfo["trip"] as? String)?.toInt() {
println(tripId)
Trips.load(tripId) { (responseCode, trip) in
debugPrintln("Got the trip")
if let trip = trip {
if let window = self.window {
if let rootViewController = window.rootViewController {
if let storyboard = rootViewController.storyboard {
let viewController = storyboard.instantiateViewControllerWithIdentifier("Trip") as! TripViewController
viewController.trip = trip
rootViewController.presentViewController(viewController, animated: true, completion: nil)
} else {
println("No storyboard")
}
} else {
println("No root view controller")
}
} else {
println("No window")
}
}
}
} else {
println("Failed to get trip id")
}
}
}
故事板的构造是,当应用第一次打开时,它会打开到 LoginViewController,它会检查登录状态并重定向到包含行程列表的 NavigationController。从列表中,用户可以点击行程以打开 TripViewController(请参阅screenshot)。
当我运行我的应用并测试点击推送通知时,应用会加载行程列表,我会在控制台中看到以下日志:
2015-09-04 09:50:07.158 GoDriver[883:377922] Warning: Attempt to present <GoDriver.TripViewController: 0x15f5b260> on <GoDriver.LoginViewController: 0x15d910e0> whose view is not in the window hierarchy!
我是否必须加载我的导航控制器并使用 TripViewController 填充它?
【问题讨论】:
标签: ios swift push-notification apple-push-notifications