[英]iOS swift - Open notifications on specific view controller
当我收到通知时,我想将我的应用程序打开到特定屏幕。 目前,当用户点击通知时,应用程序只会在当前屏幕上打开,但我如何才能重定向到另一个屏幕。 请提出任何解决方案?
推送通知管理器:
import FirebaseMessaging
class PushNotificationManager: NSObject, MessagingDelegate, UNUserNotificationCenterDelegate {
let userID: String
init(userID: String) {
self.userID = FriendSystem.system.CURRENT_USER_ID
super.init()
}
func registerForPushNotifications() {
if #available(iOS 10.0, *) {
UNUserNotificationCenter.current().delegate = self
let authOptions: UNAuthorizationOptions = [.alert, .badge, .sound]
UNUserNotificationCenter.current().requestAuthorization(
options: authOptions,
completionHandler: {_, _ in })
Messaging.messaging().delegate = self
} else {
let settings: UIUserNotificationSettings = UIUserNotificationSettings(types: [.alert, .badge, .sound], categories: nil)
UIApplication.shared.registerUserNotificationSettings(settings)
}
UIApplication.shared.registerForRemoteNotifications()
updateFirestorePushTokenIfNeeded()
}
func updateFirestorePushTokenIfNeeded() {
if let token = Messaging.messaging().fcmToken {
let usersRef = FriendSystem.system.USER_REF.document(userID)
usersRef.setData(["fcmToken": token], merge: true)
}
}
func messaging(_ messaging: Messaging, didReceive remoteMessage: MessagingRemoteMessage) {
}
func messaging(_ messaging: Messaging, didReceiveRegistrationToken fcmToken: String) {
updateFirestorePushTokenIfNeeded()
}
func userNotificationCenter(_ center: UNUserNotificationCenter, didReceive response: UNNotificationResponse, withCompletionHandler completionHandler: @escaping () -> Void) {
}
}
推送通知发送者:
import Foundation
class PushNotificationSender {
func sendPushNotification(to token: String, title: String) {
let urlString = "https://fcm.googleapis.com/fcm/send"
let url = NSURL(string: urlString)!
let paramString: [String : Any] = ["to" : token,
"notification" : ["title" : title],
"data" : ["user" : "test_id"]
]
let request = NSMutableURLRequest(url: url as URL)
request.httpMethod = "POST"
request.httpBody = try? JSONSerialization.data(withJSONObject:paramString, options: [.prettyPrinted])
request.setValue("application/json", forHTTPHeaderField: "Content-Type")
request.setValue("key=AAAA40aUkvQ:APA91bF-CnQ2x9eHtXyzBBymNvfy6YlFeN-uv8HVgSmX6Po7o8Ko3TEL7q4zwFPx8JiZnQI6pkYVIt2OlNevJr5-K-igKFB7439ssl_9lDm-6QKPLsLGfa0x3PsCCw5johTFh5UzcZe8", forHTTPHeaderField: "Authorization")
let task = URLSession.shared.dataTask(with: request as URLRequest) { (data, response, error) in
do {
if let jsonData = data {
if let jsonDataDict = try JSONSerialization.jsonObject(with: jsonData, options: JSONSerialization.ReadingOptions.allowFragments) as? [String: AnyObject] {
NSLog("Received data:\n\(jsonDataDict))")
}
}
} catch let err as NSError {
print(err.debugDescription)
}
}
task.resume()
}
}
查看 controller:
...
let sender = PushNotificationSender()
sender.sendPushNotification(to: post_token!, title: "New notification!")
AppDelegate 有一个 window 属性,其中包含正在显示的所有视图控制器。
window object 有一个 rootViewController 属性,它访问堆栈中的大多数底部视图控制器。 根视图 controller 是我们从 AppDelegate 访问视图控制器的入口点。
假设我们想在用户点击推送通知时显示 ListViewController:
只需在 storyboard 中为视图 controller 添加 storyboard id
要跳转到特定视图 controller,您需要实例化目标视图 controller 并推送它
func jumpToViewController() {
let storyboard = UIStoryboard(name: "Main", bundle: nil)
// instantiate the view controller we want to show from storyboard
// root view controller is tab bar controller (initial view controller in storyboard)
// the selected tab is a navigation controller
// then we push the new view controller to it
if let listVC = storyboard.instantiateViewController(withIdentifier: "ListViewController") as? ListViewController,
let tabBarController = self.window?.rootViewController as? UITabBarController,
let navController = tabBarController.selectedViewController as? UINavigationController {
// we can modify properties of the new view controller using notification data
// (eg: title of notification)
listVC.title = response.notification.request.content.title
navController.pushViewController(listVC, animated: true)
}
}
您可以在 appdelegate 的didFinishLaunchingWithOptions方法中检查launchOptions以了解应用程序是否已通过通知启动的天气,并相应地移动到所需的视图控制器。
func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplicationLaunchOptionsKey : Any]? = nil) -> Bool {
if launchOptions?[UIApplicationLaunchOptionsKey.remoteNotification] != nil {
// Move to your required viewcontroller here
}
}
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