I have to access Google contacts in our Xamarin. ios app so, We have generated Google's people API key and client id in Google developer portal
But I don’t know how to consume API in Xamarin.ios app. We need to get Google contact details using API.
We got some code for .net in Google documentation but unfortunately, it’s not working in Xamarin.ios platform. DLL not supported in xamarin platform.
Please help me to solve this issue.
I have solved it by using Xamarin.Auth library.
Auth = new OAuth2Authenticator(
Configuration.ClientId,
string.Empty,
"https://www.googleapis.com/auth/contacts",
new Uri("https://accounts.google.com/o/oauth2/v2/auth"),
new Uri(Configuration.RedirectUrl),
new Uri("https://www.googleapis.com/oauth2/v4/token"),
isUsingNativeUI: true);
var viewController = Auth.GetUI();
PresentViewController(viewController, true, null);
Auth.Completed += Auth_Completed;
Auth.Error += Auth_Error;
private void Auth_Error(object sender, AuthenticatorErrorEventArgs e)
{
}
private void Auth_Completed(object sender, AuthenticatorCompletedEventArgs e)
{
// SFSafariViewController doesn't dismiss itself
DismissViewController(true, null);
if (e.IsAuthenticated)
{
}
}
Must implement OpentUrl() in Appdelegate.cs calss upto iOS 12 and above iOS 13 implement OpenUrlContexts() method in SceneDelegate.cs
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();
I have implemented a code to send Local Notifications for a particular date and time on Android and iOS platform.And, My code is working for Android and iOS platform.In Android,I am using AlarmManager.
and in iOS, UILocationNotification for sending notifications. But , I didn't find any solution for the UWP platform to implement the Local Notification feature
using Dependency Service as i got for Android and iOS platform. Is there any solution for sending local notifications for particular
date and time for all the platforms including "UWP"(mandatory) in Xamarin.forms????
Xamarin.UWP local notification not working
If you want to make Local notification fore Xamarin.Forms, please refer this document. But it has not implement UWP platform. So we need implement schedule notification within uwp and use dependency service to call it. And I have implement a simple you could refer.
interface
public interface INotificationManager
{
int ScheduleNotification(string title, string message,DateTime scheduledTime);
}
Implement
public class UWPNotificationManager : INotificationManager
{
int messageId = -1;
public int ScheduleNotification(string title, string message,DateTime scheduledTime)
{
messageId++;
string TOAST = $#"<toast>
<visual>
<binding template='ToastGeneric'>
<text>{title}</text>
<text>{message}</text>
</binding>
</visual>
<audio src =""ms-winsoundevent:Notification.Mail"" loop=""true""/>
</toast>";
Windows.Data.Xml.Dom.XmlDocument xml = new Windows.Data.Xml.Dom.XmlDocument();
xml.LoadXml(TOAST);
ScheduledToastNotification toast = new ScheduledToastNotification(xml, scheduledTime);
toast.Id = "IdTostone" + messageId.ToString();
toast.Tag = "NotificationOne";
toast.Group = nameof(UWPNotificationManager);
ToastNotificationManager.CreateToastNotifier().AddToSchedule(toast);
return messageId;
}
}
Usage
private void OnScheduleClick(object sender, EventArgs e)
{
notificationNumber++;
string title = $"Local Notification #{notificationNumber}";
string message = $"You have now received {notificationNumber} notifications!";
notificationManager.ScheduleNotification(title, message,DateTime.Now + TimeSpan.FromSeconds(3));
}
Try to use
ToastNotificationManager.CreateToastNotifier().Show(toast);
I am developing a Xamarin Forms application which is basically a WebView where the user have access to some files which is supposed the user have to be able to download.
To achieve this in Android, I have this CustomRenderer for the WebView in the Android project, basically I get the cookies (files are under authentication) to send them to the DownloadManager:
public class CustomWebViewRenderer : WebViewRenderer
{
protected override void OnElementChanged(ElementChangedEventArgs<Xamarin.Forms.WebView> e)
{
base.OnElementChanged(e);
if (e.NewElement != null)
{
var customWebView = Element as CustomWebView;
Control.Settings.AllowContentAccess = true;
Control.Settings.AllowUniversalAccessFromFileURLs = true;
Control.Settings.DomStorageEnabled = true;
Control.Settings.JavaScriptEnabled = true;
Control.Download += OnWebViewDownload;
}
}
private void OnWebViewDownload(object sender, DownloadEventArgs e)
{
var source = AUri.Parse(e.Url);
var request = new DownloadManager.Request(source);
request.AllowScanningByMediaScanner();
var cookieString = CookieManager.Instance.GetCookie(e.Url);
request.AddRequestHeader("Cookie", cookieString);
request.AddRequestHeader("User-Agent", e.UserAgent);
request.SetNotificationVisibility(DownloadVisibility.VisibleNotifyCompleted);
request.SetDestinationInExternalPublicDir(AEnvironment.DirectoryDownloads, source.LastPathSegment);
var manager = (DownloadManager)MainActivity.Current.GetSystemService("download");
manager.Enqueue(request);
}
}
The download starts in the background and everyone is happy.
My problem started when I noticed that this behavior is not available in iOS, since the file is displayed on the webview not giving me any option to download or showing the "Open in..." dialog. In plus, after trying to implement a CustomRenderer for the iOS platform too, I see no handler, property or method in the UIWebView or the WKWebView which allows me to manage the download or share the file in another app.
I need to be able to download the file in iOS, or at least, show the "Open in" bar. Any suggestions? Thanks in advance.
Am finding hard to launch Cordova Windows App, from another native Windows App.
Using Protocol invocation, I am passing few parameters to Cordova Windows App, to see if the Cordova app identifies those parameters from the Windows Native App.
Is there anyway to pass Parameters from native Windows App to Cordova App, so that Cordova App identifies the parameters as arguments?
In native windows 8 store app I am using app protocol association to send parameters one app to another app. like
in sender app:
mainpage.xaml.cs on button click
var url = "apptest:?" + name;
Uri uri = new Uri(url);
await Launcher.LaunchUriAsync(uri);
in received app
Package.appxmanifest:
Declarations --> available declarations add --> protocol --> name = apptest
app.xaml.cs
protected override void OnActivated(IActivatedEventArgs args)
{
if (args.Kind == ActivationKind.Protocol)
{
ProtocolActivatedEventArgs protocolArgs = args as ProtocolActivatedEventArgs;
var rootFrame = new Frame();
rootFrame.Navigate(typeof(MainPage), protocolArgs);
Window.Current.Content = rootFrame;
}
Window.Current.Activate();
}
mainpage.xaml.cs
protected override void OnNavigatedTo(NavigationEventArgs e)
{
ProtocolActivatedEventArgs pa = e.Parameter as ProtocolActivatedEventArgs;
if(pa != null)enter code here
{
string qS = pa.Uri.Query;
if (!string.IsNullOrEmpty(qS))
{
Txt_name.Text = qS;
}
}
}
in this way i will take the data from sender app.
Same like is there any way to receive data from windows 10 native app to cordova app. it is very hard to find the solution. not able to find the exact piece of code.
I'm using the Facebook C# SDK and trying to authenticate my user. The first part sort of worked, my app showed me the facebook login page inside a browser control.
This is the code I have, I was following this example.
private readonly FacebookClient _fb = new FacebookClient();
private void Browser_Loaded(object sender, RoutedEventArgs e)
{
var loginUrl = GetFacebookLoginUrl();
BrowserControl.Navigate(loginUrl);
}
private Uri GetFacebookLoginUrl()
{
var parameters = new Dictionary<string, object>();
parameters["client_id"] = FacebookSettings.AppID;
parameters["redirect_uri"] = "https://www.facebook.com/connect/login_success.html";
parameters["response_type"] = "token";
parameters["display"] = "page";
if (!string.IsNullOrEmpty(FacebookSettings.ExtendedPermissions))
parameters["scope"] = FacebookSettings.ExtendedPermissions;
return _fb.GetLoginUrl(parameters);
}
After I filled in my details to log into facebook, I got this error:
Any idea's which method is deprecated and how I can fix this?
I used the same code and it's working. And such an error is occuring because of a bug in the facebook API, when display parameter is set to "touch" or "wap". That shouldn't occur when using "page". Try using "popup" as the display.
Try changing the july 2012 Breaking Changes in the app's advanced settings tab(in developer.facebook.com). Refer to this link for information on this issue. And similar issue in facebook developer site.