Swift Firebase远程通知中如何访问AnyHashable类型的shipmentMessage数据

架构老林

2026-8-17

解决Firebase远程通知中shipmentMessage访问问题

问题原因

从你提供的通知数据可以看到，shipmentMessage对应的值是字符串类型，但你的代码错误地将其强转为[AnyHashable:Any]字典类型，导致类型转换失败，最终判断该字段为nil。

修正后的代码

if UIApplication.shared.applicationState == .active {
    print("ACTIVE< CHECK > SHIPMENT MESSAGE : : : : : : \(String(describing: userInfo["shipmentMessage"]))")
    
    // 合并guard判断，简化代码
    guard let arrAPS = userInfo["aps"] as? [String: Any],
          let arrAlert = arrAPS["alert"] as? [String: Any] else {
        return
    }
    
    // 正确识别shipmentMessage的字符串类型，同时判断内容非空
    if let shipmentMessage = userInfo["shipmentMessage"] as? String, !shipmentMessage.isEmpty {
        print("***********NOT NULL***************")
        let strTitle = arrAlert["title"] as? String ?? ""
        let strBody = arrAlert["body"] as? String ?? ""
        
        let alert = UIAlertController(title: strTitle, message: strBody, preferredStyle: .alert)
        alert.addAction(UIAlertAction(title: "Ok", style: .default) { action in
            print("OK Action")
        })
        self.window?.rootViewController?.present(alert, animated: true)
    } else {
        print("The shipmentMessage was null or empty")
    }
}