I want to get enter image description here this parameter. I'm trying to do this with this code FirebaseRemoteConfig.GetInstance(Firebase.FirebaseApp.DefaultInstance).GetValue("VERSION").ToString() but it's returns nothing. Also i've tryed get it with FirebaseRemoteConfig.DefaultInstance.GetValue but i have same result.
using UnityEngine;
using UnityEngine.SceneManagement;
using Firebase.RemoteConfig;
public class GameOpening : MonoBehaviour
{
Firebase.DependencyStatus dependencyStatus = Firebase.DependencyStatus.UnavailableOther;
// Use this for initialization
void Start()
{
Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task => {
dependencyStatus = task.Result;
if (dependencyStatus == Firebase.DependencyStatus.Available)
{
Debug.Log(FirebaseRemoteConfig.DefaultInstance.GetValue("VERSION"));
}
else
{
Debug.LogError(
"Could not resolve all Firebase dependencies: " + dependencyStatus);
}
});
}
}
You have to Fetch and Activate FirebaseRemoteConfig before you can start using it. Also you should decide on a type of value you will use, Long for example. The next example should work:
using UnityEngine;
using UnityEngine.SceneManagement;
using Firebase.RemoteConfig;
public class GameOpening : MonoBehaviour
{
Firebase.DependencyStatus dependencyStatus = Firebase.DependencyStatus.UnavailableOther;
// Use this for initialization
async void Start()
{
await Firebase.FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(async task => {
var dependencyStatus = task.Result;
if (dependencyStatus == Firebase.DependencyStatus.Available)
{
await FirebaseRemoteConfig.DefaultInstance.FetchAsync(TimeSpan.Zero);
await FirebaseRemoteConfig.DefaultInstance.ActivateAsync();
UnityEngine.Debug.Log(FirebaseRemoteConfig.DefaultInstance.GetValue("VERSION").LongValue);
}
else
{
UnityEngine.Debug.LogError(
"Could not resolve all Firebase dependencies: " + dependencyStatus);
}
});
}
Related
Integrating facebook as an auth provider within firebase (already have a working gmail implementation). The below code works fine in Unity, the FB SDK prompts for token, enter it manually, token is passed to firebase, login can be seen in the console, the required scene is then loaded.
When this is built onto an android device the full behavior doesnt happen, the correct Facebook token is received either from fresh login or existing login, we enter the SignInWithFacebookOnFirebase function to log this account into firebase and nothing else happens, sits on the debug of ("your token is " + aToken);
Im pretty sure it has something to do with the async behaviour and maybe not awaiting the task but im not sure what, any suggestions would be great !
using System.Collections.Generic;
using UnityEngine;
using Facebook.Unity;
using TMPro;
using UnityEngine.SceneManagement;
using Firebase.Auth;
using Firebase;
public class FacebookAuth : MonoBehaviour
{
private FirebaseAuth auth;
public TMP_Text debug;
void Awake ()
{
if (FB.IsInitialized) {
FB.ActivateApp();
} else {
//Handle FB.Init
FB.Init( () => {
FB.ActivateApp();
});
}
CheckFirebaseDependencies();
}
private void CheckFirebaseDependencies()
{
FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task =>
{
if (task.IsCompleted)
{
if (task.Result == DependencyStatus.Available)
auth = FirebaseAuth.DefaultInstance;
else
debug.text =("Could not resolve all Firebase dependencies: " + task.Result.ToString());
}
else
{
debug.text =("Dependency check was not completed. Error : " + task.Exception.Message);
}
});
}
void OnApplicationPause (bool pauseStatus)
{
// Check the pauseStatus to see if we are in the foreground
// or background
if (!pauseStatus) {
//app resume
if (FB.IsInitialized) {
FB.ActivateApp();
} else {
//Handle FB.Init
FB.Init( () => {
FB.ActivateApp();
});
}
}
}
private void InitCallBack()
{
if(!FB.IsInitialized)
{
FB.ActivateApp();
}
else
{
// debug.text=("Failed to initialize");
}
}
private void OnHideUnity(bool isgameshown)
{
if(!isgameshown)
{
Time.timeScale = 0;
}
else
{
Time.timeScale = 1;
}
}
public void Facebook_Login()
{
var permission = new List<string>() { "public_profile", "email" };
if (!FB.IsLoggedIn)
{
FB.LogInWithReadPermissions(permission, AuthCallBack);
}
else
{
var aToken = AccessToken.CurrentAccessToken.TokenString;
debug.text=("already logged in - starting game" + aToken);
//THIS IS THE PROBLEM ON ANDROID - ITS NOT HAPPENING/async issue?
SignInWithFacebookOnFirebase(aToken);
SceneManager.LoadScene(1);
}
}
public void LogOut()
{
FB.LogOut();
debug.text=("Logged out of facebook");
}
private void SignInWithFacebookOnFirebase(string idToken)
{
Firebase.Auth.Credential credential = Firebase.Auth.FacebookAuthProvider.GetCredential(idToken);
auth.SignInWithCredentialAsync(credential).ContinueWith(task => {
if (task.IsCanceled) {
Debug.LogError("SignInWithCredentialAsync was canceled.");
return;
}
if (task.Exception != null) {
Debug.LogWarning("SignInWithCredentialAsync encountered an error: " + task.Exception);
FirebaseException firebaseEx = task.Exception.GetBaseException() as FirebaseException;
AuthError errorCode = (AuthError)firebaseEx.ErrorCode;
string message = "Login Failed!";
switch (errorCode)
{
case AuthError.AccountExistsWithDifferentCredentials:
message = "Your account is already linked to an email address";
break;
//we can add other conditions here if required to catch exceptions
}
debug.text=(message);
}
else{
Firebase.Auth.FirebaseUser newUser = task.Result;
Debug.LogFormat("User signed in successfully: {0} ({1})",
newUser.DisplayName, newUser.UserId);
debug.text=("Logged into facebook");
}
});
}
private void AuthCallBack(ILoginResult result)
{
if(FB.IsLoggedIn)
{
var aToken = result.AccessToken.TokenString;
debug.text=("your token is " + aToken);
//THIS IS THE PROBLEM ON ANDROID - ITS NOT HAPPENING/async issue?
SignInWithFacebookOnFirebase(aToken);
debug.text=("weve signed into firebase");
SceneManager.LoadScene(1);
}
else
{
debug.text=("User Cancelled login");
}
}
}
EDIT - So the problem is nothing to do with async, its the fact that the firebase credential is being persisted on the mobile device. I uncommented all of my already working google auth code below and we log into firebase with our facebook creds fine! So i need some method of clearing our this token when A) the user logs out and B) the user closes the app (Cleanly or uncleanly) Any help would be great !
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Firebase;
using Firebase.Auth;
using Google;
using TMPro;
using UnityEngine;
using UnityEngine.SceneManagement;
using UnityEngine.UI;
public class GoogleAuth : MonoBehaviour
{ /*
public TMP_Text infoText;
public string webClientId = "<your client id here>";
private FirebaseAuth auth;
private GoogleSignInConfiguration configuration;
private void Awake()
{
configuration = new GoogleSignInConfiguration { WebClientId = webClientId, RequestEmail = true, RequestIdToken = true };
CheckFirebaseDependencies();
}
private void CheckFirebaseDependencies()
{
FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task =>
{
if (task.IsCompleted)
{
if (task.Result == DependencyStatus.Available)
auth = FirebaseAuth.DefaultInstance;
else
AddToInformation("Could not resolve all Firebase dependencies: " + task.Result.ToString());
}
else
{
AddToInformation("Dependency check was not completed. Error : " + task.Exception.Message);
}
});
}
public void SignInWithGoogle() { OnSignIn(); }
public void SignOutFromGoogle() { OnSignOut(); }
private void OnSignIn()
{
GoogleSignIn.Configuration = configuration;
GoogleSignIn.Configuration.UseGameSignIn = false;
GoogleSignIn.Configuration.RequestIdToken = true;
AddToInformation("Calling SignIn");
GoogleSignIn.DefaultInstance.SignIn().ContinueWith(OnAuthenticationFinished);
}
private void OnSignOut()
{
AddToInformation("Calling SignOut");
GoogleSignIn.DefaultInstance.SignOut();
}
public void OnDisconnect()
{
GoogleSignIn.DefaultInstance.Disconnect();
infoText.text=("signed out");
}
internal void OnAuthenticationFinished(Task<GoogleSignInUser> task)
{
if (task.IsFaulted)
{
using (IEnumerator<Exception> enumerator = task.Exception.InnerExceptions.GetEnumerator())
{
if (enumerator.MoveNext())
{
GoogleSignIn.SignInException error = (GoogleSignIn.SignInException)enumerator.Current;
AddToInformation("Got Error: " + error.Status + " " + error.Message);
}
else
{
AddToInformation("Got Unexpected Exception?!?" + task.Exception);
}
}
}
else if (task.IsCanceled)
{
AddToInformation("Cancelled");
}
else
{
AddToInformation("Welcome: " + task.Result.DisplayName + "!");
AddToInformation("Email = " + task.Result.Email);
//AddToInformation("Google ID Token = " + task.Result.IdToken);
AddToInformation("Email = " + task.Result.Email);
SignInWithGoogleOnFirebase(task.Result.IdToken);
}
}
private void SignInWithGoogleOnFirebase(string idToken)
{
Credential credential = GoogleAuthProvider.GetCredential(idToken, null);
auth.SignInWithCredentialAsync(credential).ContinueWith(task =>
{
AggregateException ex = task.Exception;
if (ex != null)
{
if (ex.InnerExceptions[0] is FirebaseException inner && (inner.ErrorCode != 0))
AddToInformation("\nError code = " + inner.ErrorCode + " Message = " + inner.Message);
}
else
{
AddToInformation("Sign In Successful.");
SceneManager.LoadScene(1);
}
});
}
public void OnSignInSilently()
{
GoogleSignIn.Configuration = configuration;
GoogleSignIn.Configuration.UseGameSignIn = false;
GoogleSignIn.Configuration.RequestIdToken = true;
AddToInformation("Calling SignIn Silently");
GoogleSignIn.DefaultInstance.SignInSilently().ContinueWith(OnAuthenticationFinished);
}
public void OnGamesSignIn()
{
GoogleSignIn.Configuration = configuration;
GoogleSignIn.Configuration.UseGameSignIn = true;
GoogleSignIn.Configuration.RequestIdToken = false;
AddToInformation("Calling Games SignIn");
GoogleSignIn.DefaultInstance.SignIn().ContinueWith(OnAuthenticationFinished);
}
private void AddToInformation(string str) { infoText.text += "\n" + str; } */
}
this is solved, it was because i was checking that the firebase dependences existed in both these scripts and it was throwing an exception. I found this using the logcat logs \adb logcat -s Unity ActivityManager PackageManager dalvikvm DEBUG
I am trying to catch and format the exception thrown by the resource filter but getting this error. The middleware is working for exceptions thrown from controller level but getting this - "System.InvalidOperationException: Headers are read-only, response has already started" error while trying to write to the response in case of resource level errors.
Code of my Resource Filter:
public class TestingAsyncResourceFilter : IAsyncResourceFilter
{
public async Task OnResourceExecutionAsync(ResourceExecutingContext context, ResourceExecutionDelegate next)
{
Console.WriteLine("Resource filter executing");
var resourceExecutedContext = await next();
Console.WriteLine("Resource filter executed");
if (!resourceExecutedContext.ModelState.IsValid)
{
throw new CustomUPException();
}
}
}
Code of middleware:
public class ResponseFormatterMiddleware : IMiddleware
{
private readonly ILogger<ResponseFormatterMiddleware> _logger;
public ResponseFormatterMiddleware(ILogger<ResponseFormatterMiddleware> logger)
{
_logger = logger;
}
public async Task InvokeAsync(HttpContext context, RequestDelegate next)
{
try
{
Console.WriteLine("Before execution");
await next(context);
Console.WriteLine("After Execution");
}
catch(CustomUPException e)
{
Console.WriteLine("Here we are");
await context.Response.WriteAsJsonAsync(
new ResponseDto()
{
statusCode = e.statusCode,
message = e.message
}); // getting error
}
catch(Exception e)
{
_logger.LogError(e.Message);
context.Response.StatusCode = (int) HttpStatusCode.InternalServerError;
await context.Response.WriteAsJsonAsync(
new ResponseDto()
{
success = false,
message = "Request failed"
});
}
}
}
Code of my controller:
[Route("api/[controller]")]
[ApiController]
public class TestingController : ControllerBase
{
[HttpPost("/resource")]
public async Task<UserDto> testingResource( [FromBody] UserDto dto)
{
if (dto.email.Contains("hell"))
{
throw new CustomUPException(); //working
}
return dto;
}
}
Instead of using resource filter, I have used this strategy for formatting model validation errors as the documentation suggests.
Curious to know more about the raised issue though. Thanks in advance
// Add services to the container.
builder.Services.AddControllers().ConfigureApiBehaviorOptions(
options =>
{
options.InvalidModelStateResponseFactory = context =>
{
if (!context.ModelState.IsValid)
{
var data = new Dictionary<string, string?>();
//My Response formatter
var modelStateDictionary = context.ModelState;
foreach (var key in modelStateDictionary.Keys)
{
var errors = modelStateDictionary[key]?.Errors;
data.TryAdd(key, errors?[0].ErrorMessage);
}
return new ObjectResult(new UniversalResponseDto()
{
data = data,
statusCode = (int)HttpStatusCode.UnprocessableEntity,
sucess = false,
message = "One or more validation error occured"
})
{
StatusCode = (int)HttpStatusCode.UnprocessableEntity,
};
}
return new ObjectResult(context.HttpContext.Response);
};
});
I've try implement Firebase Cloud Messaging with Flutter, and i was success until i use 'Local Notification' plugin for show notification
My notification work fine on foreground, but on background this show this error:
[ERROR:flutter/lib/ui/ui_dart_state.cc(157)] Unhandled Exception:
MissingPluginException(No implementation found for method show on
channel dexterous.com/flutter/local_notifications)
I use Firebase Cloud Messaging 6.0.9, Local Notification 1.2.0+4 and latest Flutter
Here is my code:
NotificationHandler
import 'package:flutter_local_notifications/flutter_local_notifications.dart';
class NotificationHandler{
static final flutterLocalNotificationsPlugin = FlutterLocalNotificationsPlugin(); // make it a static field of the class
static void initNotification()
{
// initialise the plugin. app_icon needs to be a added as a drawable resource to the Android head project
var initializationSettingsAndroid = AndroidInitializationSettings('#mipmap/ic_launcher');
var initializationSettingsIOS = IOSInitializationSettings(
onDidReceiveLocalNotification: onDidReceiveLocalNotification);
var initializationSettings = InitializationSettings(
initializationSettingsAndroid, initializationSettingsIOS);
flutterLocalNotificationsPlugin.initialize(initializationSettings,
onSelectNotification: onSelectNotification);
}
static Future onSelectNotification(String payload) async {
if (payload != null) {
print('notification payload: ' + payload);
}
}
static Future onDidReceiveLocalNotification(int id, String title, String body, String payload) {
print(title+" "+body);
}
}
ShowNotification method
static void showNotification(data, data2) async {
var androidPlatformChannelSpecifics = new AndroidNotificationDetails(
'dexterous.com.flutter.local_notifications', 'your channel name', 'your channel description',
importance: Importance.Max,
priority: Priority.High);
var iOSPlatformChannelSpecifics =
new IOSNotificationDetails();
var platformChannelSpecifics = new NotificationDetails(
androidPlatformChannelSpecifics, iOSPlatformChannelSpecifics);
await NotificationHandler.flutterLocalNotificationsPlugin
.show(
0,
data,
data2,
platformChannelSpecifics,
payload: 'Custom_Sound',
);
}
I have found solution, that why in platform side we don't register for outside plugin
Add in your FCMPluginRegistrant.java like
public final class FirebaseCloudMessagingPluginRegistrant {
public static void registerWith(PluginRegistry registry) {
if (alreadyRegisteredWith(registry)) {
return;
}
FirebaseMessagingPlugin.registerWith(registry.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
FlutterLocalNotificationsPlugin.registerWith(registry.registrarFor("com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin"));
}
private static boolean alreadyRegisteredWith(PluginRegistry registry) {
final String key = FirebaseCloudMessagingPluginRegistrant.class.getCanonicalName();
if (registry.hasPlugin(key)) {
return true;
}
registry.registrarFor(key);
return false;
}
}
And call it on Application.java
#Override
public void registerWith(PluginRegistry registry) {
FirebaseCloudMessagingPluginRegistrant.registerWith(registry);
}
For Kotlin :
Application.kt
package your.package.name
import io.flutter.app.FlutterApplication
import io.flutter.plugin.common.PluginRegistry
import io.flutter.plugin.common.PluginRegistry.PluginRegistrantCallback
import io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin
import io.flutter.view.FlutterMain
import io.flutter.plugins.firebasemessaging.FlutterFirebaseMessagingService
import com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin
class Application : FlutterApplication(), PluginRegistrantCallback {
override fun onCreate() {
super.onCreate()
FlutterFirebaseMessagingService.setPluginRegistrant(this);
FlutterMain.startInitialization(this)
}
override fun registerWith(registry: PluginRegistry?) {
if (!registry!!.hasPlugin("io.flutter.plugins.firebasemessaging")) {
FirebaseMessagingPlugin.registerWith(registry!!.registrarFor("io.flutter.plugins.firebasemessaging.FirebaseMessagingPlugin"));
}
if (!registry!!.hasPlugin("com.dexterous.flutterlocalnotifications")) {
FlutterLocalNotificationsPlugin.registerWith(registry!!.registrarFor("com.dexterous.flutterlocalnotifications.FlutterLocalNotificationsPlugin"));
}
}
}
I just uninstall the app first, reinstall it again and it solves my problem.
I had same problem when i use result.notImplemented in my native part of my hybrid application. Everything was solved when i replaced this method to result.success(0)
I am using xamarin forms for my app. I need to send local notification based on SQLite table for ios. I am using the following code:
AppDelegate.cs:
using System;
using Foundation;
using UIKit;
using Xamarin.Forms;
using Firebase.Database;
using Firebase.CloudMessaging;
using UserNotifications;
using Microsoft.AppCenter.Crashes;
using Plugin.Permissions;
using Plugin.Permissions.Abstractions;
using CoreTelephony;
using Firebase.Auth;
using System.Threading.Tasks;
using System.Collections.Generic;
namespace MyApp.iOS
{
[Register("AppDelegate")]
public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate, IUNUserNotificationCenterDelegate, IMessagingDelegate
{
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
global::Xamarin.Forms.Forms.Init();
AppDomain.CurrentDomain.UnhandledException += CurrentDomainOnUnhandledException;
Firebase.Core.App.Configure();
Database.DefaultInstance.PersistenceEnabled = true;
LoadApplication(new MyApp.App());
RegisterForRemoteNotifications();
Messaging.SharedInstance.Delegate = this;
if (UNUserNotificationCenter.Current != null)
{
UNUserNotificationCenter.Current.Delegate = new UserNotificationCenterDelegate();
}
if (UNUserNotificationCenter.Current != null)
{
UNUserNotificationCenter.Current.Delegate = new UserNotificationCenterDelegate();
}
Xamarin.FormsMaps.Init();
UIApplication.SharedApplication.IdleTimerDisabled = true;
UIApplication.SharedApplication.SetMinimumBackgroundFetchInterval(UIApplication.BackgroundFetchIntervalMinimum);
return base.FinishedLaunching(app, options);
}
public override bool ShouldRestoreApplicationState(UIApplication application, NSCoder coder)
{
return true;
}
private async System.Threading.Tasks.Task AcessPermissionsAsync()
{
try
{
await CrossPermissions.Current.RequestPermissionsAsync(Permission.Camera);
}
catch(Exception ex)
{
Crashes.TrackError(ex);
}
}
private void RegisterForRemoteNotifications()
{
if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
UNUserNotificationCenter.Current.RemoveAllPendingNotificationRequests(); // To remove all pending notifications which are not delivered yet but scheduled.
UNUserNotificationCenter.Current.RemoveAllDeliveredNotifications(); // To remove all delivered notifications
}
else
{
UIApplication.SharedApplication.CancelAllLocalNotifications();
}
// Register your app for remote notifications.
if (UIDevice.CurrentDevice.CheckSystemVersion(10, 0))
{
// For iOS 10 display notification (sent via APNS)
UNUserNotificationCenter.Current.Delegate = this;
var authOptions = UNAuthorizationOptions.Alert | UNAuthorizationOptions.Badge | UNAuthorizationOptions.Sound;
UNUserNotificationCenter.Current.RequestAuthorization(authOptions, async (granted, error) =>
{
Console.WriteLine(granted);
await System.Threading.Tasks.Task.Delay(500);
await AcessPermissionsAsync();
});
}
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();
}
public override void DidEnterBackground(UIApplication uiApplication)
{
Messaging.SharedInstance.ShouldEstablishDirectChannel = false;
}
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
Messaging.SharedInstance.ApnsToken = deviceToken;
}
[Export("messaging:didReceiveRegistrationToken:")]
public void DidReceiveRegistrationToken(Messaging messaging, string fcmToken)
{
Xamarin.Forms.Application.Current.Properties["Fcmtocken"] = Messaging.SharedInstance.FcmToken ?? "";
Xamarin.Forms.Application.Current.SavePropertiesAsync();
System.Diagnostics.Debug.WriteLine($"######Token###### : {fcmToken}");
DeviceId.FCMTocken = fcmToken;
// TODO: If necessary send token to application server.
// Note: This callback is fired at each app startup and whenever a new token is generated.
}
public override void ReceivedRemoteNotification(UIApplication application, NSDictionary userInfo)
{
// If you are receiving a notification message while your app is in the background,
// this callback will not be fired till the user taps on the notification launching the application.
// TODO: Handle data of notification
// With swizzling disabled you must let Messaging know about the message, for Analytics
// Print full message.
Console.WriteLine(userInfo);
}
public override void DidReceiveRemoteNotification(UIApplication application, NSDictionary userInfo, Action<UIBackgroundFetchResult> completionHandler)
{
try
{
Console.WriteLine(userInfo);
completionHandler(UIBackgroundFetchResult.NewData);
}
catch(Exception ex)
{
Crashes.TrackError(ex);
}
}
public override UIInterfaceOrientationMask GetSupportedInterfaceOrientations(UIApplication application, UIWindow forWindow)
{
switch (Device.Idiom)
{
case TargetIdiom.Phone:
return UIInterfaceOrientationMask.Portrait;
case TargetIdiom.Tablet:
return UIInterfaceOrientationMask.Landscape;
default:
return UIInterfaceOrientationMask.Portrait;
}
}
private void CurrentDomainOnUnhandledException(object sender, UnhandledExceptionEventArgs unhandledExceptionEventArgs)
{
var newExc = new Exception("CurrentDomainOnUnhandledException", unhandledExceptionEventArgs.ExceptionObject as Exception);
ExceptionFileWriter.ToLogUnhandledException(newExc);
}
public void DidRefreshRegistrationToken(Messaging messaging, string fcmToken)
{
Xamarin.Forms.Application.Current.Properties["Fcmtocken"] = Messaging.SharedInstance.FcmToken ?? "";
Xamarin.Forms.Application.Current.SavePropertiesAsync();
System.Diagnostics.Debug.WriteLine($"######Token###### : {fcmToken}");
DeviceId.FCMTocken = fcmToken;
}
public override void PerformFetch(UIApplication application, Action<UIBackgroundFetchResult> completionHandler)
{
try
{
var baseService = new DatabaseServices<object, object>();
baseService.NotificationAssetTrip();
}
catch(Exception ex)
{
Logs.LogCreate("PerformFetch:Exception: " + ex.Message.ToString());
}
completionHandler(UIBackgroundFetchResult.NewData);
}
}
}
UserNotificationCenterDelegate.cs:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using Foundation;
using iAd;
using ObjCRuntime;
using UIKit;
using UserNotifications;
namespace MyApp.iOS
{
public class UserNotificationCenterDelegate : UNUserNotificationCenterDelegate
{
private DBService dataBase;
#region Constructors
public UserNotificationCenterDelegate()
{
UNUserNotificationCenter.Current.Delegate = this;
}
#endregion
#region Override Methods
public override void WillPresentNotification(UNUserNotificationCenter center, UNNotification notification, Action<UNNotificationPresentationOptions> completionHandler)
{
completionHandler.DynamicInvoke(UNNotificationPresentationOptions.Alert);
}
#endregion
}
}
App.xaml.cs:
private void SendNotificationTripAsset(int tripid)
{
//Forexample i have table with columns like title,subtitle,message means, i give like this
var content = new UserNotifications.UNMutableNotificationContent()
{
Title = title,
Subtitle = subtitle,
Body = message,
Badge = 1
};
var request = UserNotifications.UNNotificationRequest.FromIdentifier(list.TripID.ToString(), content, null);
UserNotifications.UNUserNotificationCenter.Current.AddNotificationRequest(request, (err) =>
{
if (err != null)
{
throw new Exception($"Failed to schedule notification: {err}");
}
});
}
But the notification is not trigged after app is killed(terminated). Can anyone please help me to resolve this issue.
To send a local notification when app is killed, you have to specify the time when should the local notification been sent. In your code, when you create the request, set a proper NNotificationTrigger :
NNotificationTrigger trigger = UNTimeIntervalNotificationTrigger.CreateTrigger(3, false);
var request = UserNotifications.UNNotificationRequest.FromIdentifier(list.TripID.ToString(), content, trigger );
That means this notification will be fired after 3 seconds. You can change the time to whatever you want.
Code will not execute when your app is killed, so if you don't know the specific time to fire the notification or it fires randomly, you should use a remote notification.
I'm develop cross-platform mobile application that use NFC. I already check the xamarin android beam sample here. Now i'm trying implement the same sample using xamarin forms so i'm using dependency service to call the function from android project.
I already create Ndef message and send function:
using System;
using System.Text;
using Android.App;
using MyApp.Droid;
using Android.Nfc;
using Xamarin.Forms;
[assembly: Dependency(typeof(PhoneBeam))]
namespace MyApp.Droid
{
public class PhoneBeam : Activity, NfcAdapter.ICreateNdefMessageCallback, NfcAdapter.IOnNdefPushCompleteCallback, iBeam
{
private NfcAdapter nfcAdapter;
public void Beam()
{
nfcAdapter = NfcAdapter.GetDefaultAdapter(MainActivity.Instance);
nfcAdapter.SetNdefPushMessageCallback(this, MainActivity.Instance);
nfcAdapter.SetOnNdefPushCompleteCallback(this, MainActivity.Instance);
}
public NdefMessage CreateNdefMessage(NfcEvent evt)
{
DateTime time = DateTime.Now;
var text = ("Beam me up!\n\n" + "Beam : " +
time.ToString("HH:mm:ss"));
NdefMessage msg = new NdefMessage(
new NdefRecord[]{ CreateMimeRecord (
"application/com.companyname.MyApp",
Encoding.UTF8.GetBytes (text)) });
return msg;
}
public NdefRecord CreateMimeRecord(String mimeType, byte[] payload)
{
byte[] mimeBytes = Encoding.UTF8.GetBytes(mimeType);
NdefRecord mimeRecord = new NdefRecord(
NdefRecord.TnfMimeMedia, mimeBytes, new byte[0], payload);
return mimeRecord;
}
public void OnNdefPushComplete(NfcEvent e){}
}
}
However, I really don't know how to receive a message. In android beam sample, they implement it in mainactivity. Here's sample:
protected override void OnResume ()
{
base.OnResume ();
if (NfcAdapter.ActionNdefDiscovered == Intent.Action) {
ProcessIntent (Intent);
}
}
void ProcessIntent (Intent intent)
{
IParcelable [] rawMsgs = intent.GetParcelableArrayExtra (
NfcAdapter.ExtraNdefMessages);
NdefMessage msg = (NdefMessage) rawMsgs [0];
mInfoText.Text = Encoding.UTF8.GetString (msg.GetRecords () [0].GetPayload ());
}
So i want to implement in class file so i can use dependencyService. Is there a way to implement this?
Edit: I did the send function:
public NdefMessage CreateNdefMessage (NfcEvent evt)
{
DateTime time = DateTime.Now;
var text = ("Beam me up!\n\n" +
"Beam Time: " + time.ToString ("HH:mm:ss"));
NdefMessage msg = new NdefMessage (
new NdefRecord[] { CreateMimeRecord (
"application/com.companyname.MyApp", Encoding.UTF8.GetBytes (text))
});
return msg;
}
But it return as "NEW TAG COLLECTED: application/com.companyname.MyApp". I want to resume MyApp and show the message. But it didn't.