Swift read userInfo of remote notification

Question

I implemented a function to open an AlertView when I receive a remote notification like this:

func application(application: UIApplication, didReceiveRemoteNo         


        

Answer 1

Swift 5

struct Push: Decodable {
    let aps: APS
    
    struct APS: Decodable {
        let alert: Alert
        
        struct Alert: Decodable {
            let title: String
            let body: String
        }
    }
    
    init(decoding userInfo: [AnyHashable : Any]) throws {
        let data = try JSONSerialization.data(withJSONObject: userInfo, options: .prettyPrinted)
        self = try JSONDecoder().decode(Push.self, from: data)
    }
}

Usage:

guard let push = try? Push(decoding: userInfo) else { return }
let alert = UIAlertController(title: push.aps.alert.title, message: push.aps.alert.body, preferredStyle: .alert)