我尝试在Xamarin Forms应用程序中实现Firebase推送通知和消息。在Android中，它工作正常，而在iOS中，我收到推送通知，但没有收到仅FCM数据消息。
我正在使用Xamarin.Firebase.iOS.CloudMessaging软件包，我也遵循了this guide和this other one。
这是我的AppDelegate.cs代码：
[Register("AppDelegate")]
public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate, IUNUserNotificationCenterDelegate, IMessagingDelegate
{
//
// This method is invoked when the application has loaded and is ready to run. In this
// method you should instantiate the window, load the UI into it and then make the window
// visible.
//
// You have 17 seconds to return from this method, or iOS will terminate your application.
//
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
Forms.SetFlags("Brush_Experimental");
Rg.Plugins.Popup.Popup.Init();
//Ascetic.Plugins.PopupDecorations.iOS.PrettyPopup.Init();
global::Xamarin.Forms.Forms.Init();
SfListViewRenderer.Init();
new Syncfusion.SfAutoComplete.XForms.iOS.SfAutoCompleteRenderer();
Syncfusion.XForms.iOS.TabView.SfTabViewRenderer.Init();
iOSMaterialFrameRenderer.Init();
LoadApplication(new App());
// Register your app for remote notifications.
configureFirebase();
var result = base.FinishedLaunching(app, options);
app.KeyWindow.TintColor = UIColor.White;
foreach (var fs in UIFont.FamilyNames.OrderBy(c => c).ToList())
{
Console.WriteLine(" * " + fs);
foreach (var f in UIFont.FontNamesForFamilyName(fs).OrderBy(c => c).ToList())
{
Console.WriteLine(" *-- " + f);
}
}
return result;
}
private void configureFirebase()
{
Firebase.Core.App.Configure();
if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.Current.Delegate = this;
// iOS 10 or later
var authOptions = UNAuthorizationOptions.Alert | UNAuthorizationOptions.Badge | UNAuthorizationOptions.Sound;
UNUserNotificationCenter.Current.RequestAuthorization(authOptions, (granted, error) =>
{
});
// For iOS 10 data message (sent via FCM)
Messaging.SharedInstance.Delegate = this;
}
else
{
// iOS 9 or before
var allNotificationTypes = UIUserNotificationType.Alert | UIUserNotificationType.Badge | UIUserNotificationType.Sound;
var settings = UIUserNotificationSettings.GetSettingsForTypes(allNotificationTypes, null);
UIApplication.SharedApplication.RegisterUserNotificationSettings(settings);
}
UIApplication.SharedApplication.RegisterForRemoteNotifications();
}
//Firebase
[Export("messaging:didReceiveRegistrationToken:")]
public void DidReceiveRegistrationToken(Messaging messaging, string fcmToken)
{
Preferences.Set("tokenNotifica", fcmToken);
Console.WriteLine("\nValue: " + (fcmToken));
}
//APP IN BACKGROUND
public override void DidReceiveRemoteNotification(UIApplication application, NSDictionary userInfo, Action<UIBackgroundFetchResult> completionHandler)
{
handleNotification(userInfo);
completionHandler(UIBackgroundFetchResult.NewData);
}
[Export("userNotificationCenter:willPresentNotification:withCompletionHandler:")]
public void WillPresentNotification(UNUserNotificationCenter center, UNNotification notification,
Action<UNNotificationPresentationOptions> completionHandler)
{
handleNotification(notification.Request.Content.UserInfo);
completionHandler(UNNotificationPresentationOptions.Sound | UNNotificationPresentationOptions.Alert);
}
[Export("userNotificationCenter:didReceiveNotificationResponse:withCompletionHandler:")]
public void DidReceiveNotificationResponse(UNUserNotificationCenter center, UNNotificationResponse response, Action
completionHandler)
{
completionHandler();
NSDictionary userInfo = response.Notification.Request.Content.UserInfo;
try
{
var Data = userInfo[new NSString("gcm.notification.data")] as NSString;
if (Data != null && Data != "")
{
string[] tokens = Data.ToString().Split(',');
string Username = tokens[0];
string Password = tokens[1];
var Title = string.IsNullOrEmpty(response.Notification.Request.Content.Title) ? "No Notification available" : response.Notification.Request.Content.Title;
var Body = string.IsNullOrEmpty(response.Notification.Request.Content.Body) ? "No Message available" : response.Notification.Request.Content.Body;
}
}
catch (Exception)
{
}
}
[Export("messaging:didReceiveMessage:")]
public void DidReceiveMessage(Messaging messaging, RemoteMessage message)
{
handleNotification(message.AppData);
}
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
Messaging.SharedInstance.ApnsToken = deviceToken;
}
public void ApplicationReceivedRemoteMessage(RemoteMessage remoteMessage)
{
;
}
}
DidReceiveRegistrationToken 方法与令牌一起调用。如果我向该令牌发送通知，则将调用DidReceiveRemoteNotification方法，并且设备会成功显示该通知。但是，如果我向该令牌发送仅数据消息，则不会调用任何内容。
我尝试禁用杂乱无章的功能，将其启用，从头开始重新配置Firebase，并在Apple Dev网站中删除并重新创建证书和置备配置文件，但是没有任何效果。另外，我认为所有配置都正确，因为我的应用程序正在接收通知。
希望我能提供足够的信息，我为此一直挣扎了数周
编辑
我在php中使用此功能将纯数据消息发送到设备
function sendMessage($deviceKey, $data){
$curl = curl_init();
curl_setopt($curl, CURLOPT_HTTPHEADER, array(
"Content-Type: application/json",
"project_id: ***",
"Authorization: key=***"
));
// Set some options - we are passing in a useragent too here
curl_setopt_array($curl, [
CURLOPT_URL => 'https://fcm.googleapis.com/fcm/send',
CURLOPT_RETURNTRANSFER => 1,
CURLOPT_USERAGENT => 'Codular Sample cURL Request',
CURLOPT_POST => 1,
]);
$body = [
'to' => $deviceKey,
"data" => $data
];
curl_setopt($curl, CURLOPT_POSTFIELDS, json_encode($body));
$res = json_decode(curl_exec($curl), true);
curl_close($curl);
return $res;
}
此函数等于发送通知的函数，但是$ body数组不包含“ notification”键。 我想做的是在应用程序中使用消息的数据有效负载而不显示通知，这在Android上很好，但在iOS上没问题。