I create new project use
Plugin.LocalNotification version 10.0.2
Xamarin.Forms version 5.0.0.2515
this code in MainPage
async void Button_Clicked(System.Object sender, System.EventArgs e)
{
try
{
var notification = new NotificationRequest
{
NotificationId = 100,
Title = "Test",
Description = "Test Description",
ReturningData = "Dummy data", // Returning data when tapped on notification.
Schedule =
{
NotifyTime = DateTime.Now.AddSeconds(5) // Used for Scheduling local notification, if not specified notification will show immediately.
}
};
await Plugin.LocalNotification.LocalNotificationCenter.Current.Show(notification);
}
catch(Exception ex)
{
no exception found and no notification appears what is the problem ?
You can refer to the examples of local notifications in Forms official documents. For iOS, before an app can send a notification to the user, the app must be registered with the system, and since notifications are intrusive to the user, the app must explicitly request permission before sending the notification.
You can refer to the following documents:
Local notifications in Xamarin.Forms | Microsoft
Asking Permission to Use Notifications | Apple Developer
Related
So i'm using Azure Notification Hub, and in that i followed their tutorial where they had mentioned to use FCM for Android , configure it and use their API key, and creating a certificate for iOS, which is working flawless
But the problem is i'm working on Xamarin forms, and i'd like to know if i could do the registration manually through API, and i've already written a method to do that in my API Service
public async Task<string> RegisterDevice([FromBody] string handle = null)
{
string newRegistrationId = null;
//newRegistrationId = await hub.CreateRegistrationIdAsync();
//// make sure there are no existing registrations for this push handle (used for iOS and Android)
//if (handle != null)
//{
// var registrations = await hub.GetRegistrationsByChannelAsync(handle, 100);
// foreach (var registration in registrations)
// {
// if (newRegistrationId == null)
// {
// newRegistrationId = registration.RegistrationId;
// }
// else
// {
// await hub.DeleteRegistrationAsync(registration);
// }
// }
//}
newRegistrationId = await hub.CreateRegistrationIdAsync();
return newRegistrationId;
}
But i'm not able to understand how the device would be linked to this registration ID and/or what is a pns handle, i know the abbreviation but i dont know how to use it in this case or if at all is it necessary?
Any help would be deeply appreciated
While registering Azure Notification Hub, If you want to ask for Push permissions after login, you have to call RegisterForRemoteNotifications(); (iOS) & CreateNotificationChannel(); (Android) after Login.
What you're asking would require a few steps-
You would have to created a DependencyService like this, which would require creating an Interface like IPushRegistrationService with a RegisterForPush() function that would basically be called after login:
var pushService = DependencyService.Get<IPushRegistrationService>();
pushService.RegisterForPush();
Developing the mobile app using the Xamarin Forms. For push notification we are using Amazon Simple Notification Service(SNS).
Xamarin.Andriod :
1. While installing the app we have used the below code snippet to register the device id into the Amazon SNS in OnCreate method of MainActivity. It works fine
using (Intent intent = new Intent("com.google.android.c2dm.intent.REGISTER"))
{
string senders = AmazonUtils.GoogleConsoleProjectId;
intent.SetPackage("com.google.android.gsf");
intent.PutExtra("app", PendingIntent.GetBroadcast(this, 0, new Intent(), 0));
intent.PutExtra("sender", senders);
this.StartService(intent);
}
Every time when app opens checking the corresponding device id is registered in the Amazon SNS. Due to this app takes additional 4 secs to check this process and after that page is loading.
Do we need to check the device is register or not for every time when the app opens ?. Is this standard for the push notification ?.
Regards,
Cheran
Install Xam.Plugins.Settings.
It will add a helper class called Settings
In this class you should add:
private const string IsRegisteredKey = "registered_key";
private static readonly bool IsRegisteredDefault = false;
//Then adding this property
public static bool IsRegistered
{
get
{
return AppSettings.GetValueOrDefault(IsRegisteredKey, IsRegisteredDefault);
}
set
{
AppSettings.AddOrUpdateValue(IsRegisteredKey, value);
}
}
Then in your code call this property, like this:
using YourProjectNameSpace.Droid.Helper
....
if(!Settings.IsRegistered)
{
using (Intent intent = new Intent("com.google.android.c2dm.intent.REGISTER"))
{
string senders = AmazonUtils.GoogleConsoleProjectId;
intent.SetPackage("com.google.android.gsf");
intent.PutExtra("app", PendingIntent.GetBroadcast(this, 0, new Intent(), 0));
intent.PutExtra("sender", senders);
this.StartService(intent);
}
Settings.IsRegistered = true;
}
I am developing an UWP Application , i want to add a Attachment to outlook from UWP app programmatically
Request you to please me know if any alternatives are there.
Looking forward for your response.
You can use the share contract to send some data to the compliant applications (including outlook). It allows you to share some text and data with any compliant apps.
To activate the sharing, you just need to register to the DataRequested event and show the share UI:
DataTransferManager.GetForCurrentView().DataRequested += OnDataRequested;
DataTransferManager.ShowShareUI();
Then, in the event handler:
private async void OnDataRequested(DataTransferManager sender, DataRequestedEventArgs args)
{
var deferral = args.Request.GetDeferral();
try
{
args.Request.Data.Properties.Title = "Share Title"
args.Request.Data.Properties.Description = "Share some data/file";
var file = await ApplicationData.Current.TemporaryFolder.GetFileAsync("myFileToShare.xxx");
args.Request.Data.SetStorageItems(new IStorageItem[] { logFile });
}
catch
{
args.Request.FailWithDisplayText("Unable to share data");
}
finally
{
deferral.Complete();
sender.DataRequested -= OnDataRequested;
}
}
Once done, the system will show the share UI where the user will be able to select the app he want. This app will receive the sent data.
While #Vincent's answer is perfect when you want to use Share Contract, if you want to use Just Email and attach the File, Below is a simple Method that i use in one of my App.
internal async void ShowEmail(string body, string subject, StorageFile attachment)
{
EmailMessage email = new EmailMessage();
email.Subject = subject;
email.Body = body;
var stream = RandomAccessStreamReference.CreateFromFile(attachment);
email.SetBodyStream(EmailMessageBodyKind.Html, stream);
await EmailManager.ShowComposeNewEmailAsync(email);
}
Above method is a strip down of the example from Here
How can I send a message to the user without the user sending me a message? Like for example CNN bot is sending messages every day in the morning by itself. How can I do that in the bot framework?
See this.
In fact, you do not strictly need to receive a message from the user first, but addressing manually can be error-prone (you have to know the user's and bot's channel account, the service URL, etc.)
And in turn (per #thegaram's message), that only works for some channels. For example, Skype requires that the user contact the bot before the bot can message the user.
Once contacted, you can store the user's channelAccount data once they contact you and use that to send them proactive messages. For example if the user has subscribed to hear sports scores for a particular team over time.
Any sort of unsolicited spam messages of course are prohibited by the policies of the Bot Framework (and most of the channels).
Yes you can do that. We called it Greeting from Bot. I have done it and sharing a sample code with you.
Write this code in your messageController or first dialog used in bot.
if (activity.Text == null)
{
ConnectorClient connector = new ConnectorClient(new Uri(activity.ServiceUrl));
Activity isActivityTyping = activity.CreateReply();
isActivityTyping.Type = ActivityTypes.Typing;
await connector.Conversations.ReplyToActivityAsync(isActivityTyping);
await Conversation.SendAsync(activity, () => new Dialogs.GreetDialog());
}
after this code you need to create a dialog GreetDialog. Below is the cs file code for your reference.
using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Microsoft.Bot.Builder.Dialogs;
using Microsoft.Bot.Connector;
namespace GPP.Bot.Dialogs
{
[Serializable]
internal class GreetDialog : IDialog<object>
{
public async Task StartAsync(IDialogContext context)
{
context.Wait(Greeting);
}
private async Task Greeting(IDialogContext context, IAwaitable<IMessageActivity> argument)
{
var message = await argument;
if (string.IsNullOrEmpty(message.Text))
{
// Hero Card
var cardMsg = context.MakeMessage();
var attachment = BotWelcomeCard("Hello, I am a bot. Right now I am on training and in a prototype state", "");
cardMsg.Attachments.Add(attachment);
await context.PostAsync(cardMsg);
context.Call<object>(new ActionDialog(), AfterGreetingDialogCompleted);
}
else
{
context.Call<object>(new ActionDialog(), AfterGreetingDialogCompleted);
}
}
private static Attachment BotWelcomeCard(string responseFromQNAMaker, string userQuery)
{
var heroCard = new HeroCard
{
Title = userQuery,
Subtitle = "",
Text = responseFromQNAMaker,
Images = new List<CardImage> { new CardImage("https://i2.wp.com/lawyerist.com/lawyerist/wp-content/uploads/2016/08/docubot.gif?fit=322%2C294&ssl=1") },
Buttons = new List<CardAction> { new CardAction(ActionTypes.ImBack, "Show Menu", value: "Show Bot Menu") }
};
return heroCard.ToAttachment();
}
private async Task AfterGreetingDialogCompleted(IDialogContext context, IAwaitable<object> result)
{
context.Done<object>(new object());
}
}
}
this is a working code. Do let me know in case you face ant issue.
~cheers :)
I want to send notification to certain android devices on click of a button from android devices using parse, and i wrote this code snippet, but when i am clicking on button, the push dashboard is showing failure message as shown in screenshot:
ParseQuery userQuery = ParseUser.getQuery();
/*userQuery.whereWithinMiles("location",
currentUser.getParseGeoPoint("Location"), 1.0);*/
userQuery.whereNear("location", currentUser.getParseGeoPoint("Location"));
userQuery.setLimit(10);
userQuery.findInBackground();
// Find devices associated with these users
ParseQuery pushQuery = ParseInstallation.getQuery();
pushQuery.whereMatchesQuery("user", userQuery);
// Send push notification to query
ParsePush push = new ParsePush();
ParsePush.subscribeInBackground("Doctor");
push.setQuery(pushQuery);
push.setMessage("Only users near"
+ currentUser.getParseGeoPoint("Location")
+ " will recieve this push notification");
push.sendInBackground();
}
check userQuery.findInBackground(); call...
either try it with synchronous or try to make background (async call) with block..something like this
userQuery.findInBackground(new FindCallback<ParseObject>()
{
void done(List<ParseObject> results, ParseException e) {
if (e != null) {
// There was an error
} else {
// Find devices associated with these users
ParseQuery pushQuery = ParseInstallation.getQuery();
pushQuery.whereMatchesQuery("user", userQuery);
// Send push notification to query
ParsePush push = new ParsePush();
ParsePush.subscribeInBackground("Doctor");
push.setQuery(pushQuery);
push.setMessage("Only users near"
+ currentUser.getParseGeoPoint("Location")
+ " will recieve this push notification");
push.sendInBackground();
}
}
for further details see this link
https://parse.com/docs/android/guide#queries-queries-on-string-values