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[英]How to open ViewController From AppDelegate With NavigationBar?
[英]How to open Viewcontroller from Appdelegate?
我使用firebase向ios設備發送消息,我進行調試,我在func的Appdelegate中收到了數據有效負載
func application(_ application: UIApplication, didReceiveRemoteNotification userInfo: [AnyHashable: Any]) {
if let messageID = userInfo[gcmMessageIDKey] {
print("Message ID: \(messageID)")
}
我想根據該數據打開不同的視圖控制器,這意味着當我單擊消息時,將轉到相應的視圖控制器。 我在Appdelegate中使用了以下代碼,但失敗了
let sb = UIStoryboard(name: "Main", bundle: nil)
let otherVC = sb.instantiateViewController(withIdentifier: "UserNotLoginViewController") as! UserNotLoginViewController
self.window?.rootViewController = otherVC;
在您的appDelegate中聲明此函數,然后使用它更改rootViewController。
public func makeRootVC(vcName : String) {
let vc = UIStoryboard(name: "Main", bundle: Bundle.main).instantiateViewController(withIdentifier: vcName)
let navigation = UINavigationController(rootViewController: vc)
navigation.navigationBar.isHidden = true
self.window?.rootViewController = navigation
}
用法:
self.makeRootVC("YourViewControllerStoryboardID")
當您在didReceiveRemoteNotification委托中接收通知時,然后將函數推入pushview到nextviewcontroller。
func application(_ application: UIApplication, didReceiveRemoteNotification
data: [AnyHashable : Any]) {
let state: UIApplicationState = UIApplication.shared.applicationState
if state == .background {
// background
pushToPage(data: data)
}
}
func pushToPage(data:[AnyHashable : Any]){
if let appDelegate = UIApplication.shared.delegate as? AppDelegate,
let window = appDelegate.window {
let storyBoard : UIStoryboard = UIStoryboard(name: "Main", bundle:nil)
let nextViewController =
storyBoard.instantiateViewController(withIdentifier: "NextViewController") as! NextViewController
window.rootViewController = nextViewController
}
}
這里是
func handlePushNotification(userInfo: [String: Any]) {
guard let notificationType = userInfo["nt"] as? String else {
return
}
if notificationType.toInt() == 1 {
self.navigateToViewController1()
} else if notificationType.toInt() == 2 {
self.navigateToViewController2()
}
}
對於導航,您可以使用以下功能
fileprivate func navigateToViewController1() {
if let rootViewController = self.window?.rootViewController as? UINavigationController {
if let _ = rootViewController.topViewController as? VC1 {
let vc = AppStoryboard.Main.viewController(viewControllerClass: VC3.self)
rootViewController.pushViewController(vc, animated: true)
}
}
}
fileprivate func navigateToViewController2() {
if let rootViewController = self.window?.rootViewController as? UINavigationController {
if let homeVC = rootViewController.topViewController as? VC2 {
}
}
}
不過,您仍然遇到任何問題,請讓我知道。
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