Does anyone know why the following method within my app would receive a null deviceToken after registering with APNS (with MonoTouch)?
public override void RegisteredForRemoteNotifications (UIApplication application, NSData deviceToken){
//
}
Thanks.
The debugger says that the deviceToken is null but it is not. (At least that is what I observe) You can use the code below to build a string that represents your device token.
public override void RegisteredForRemoteNotifications (UIApplication application, NSData deviceToken)
{
byte [] token = deviceToken.ToArray ();
string tokenString = "";
for (int i=0; i<deviceToken.Length; i++)
tokenString += token[i].ToString ("X2");
Console.WriteLine (tokenString);
}
Here is a good tutorial that explains push notifications. It is for XCode but it is easy to convert.
Related
I followed this tutorial to implement Push-Notifications in my Xamarin-Forms App (especially the iOS part). Now my problem is, when I press the register-button, I get the error message "Unable to resolve token for APNS".
Stepping through the code in debug mode I could verify, that the Token property in DeviceInstallationService is indeed null.
So I've gone one step back, and identified that the Token is set only via RegisteredForRemoteNotification in AppDelegate.cs, but this method is never called when I run the App.
Here is some code: App-Delegate
using System;
using System.Diagnostics;
using System.Threading.Tasks;
using Foundation;
using Notes.iOS.Extensions;
using Notes.iOS.Services;
using Notes.Services;
using UIKit;
using UserNotifications;
using Xamarin.Essentials;
using System.Collections.Generic;
using System.Linq;
using Syncfusion.SfCalendar.XForms.iOS;
namespace Notes.iOS
{
[Register("AppDelegate")]
public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate
{
IPushDemoNotificationActionService _notificationActionService;
INotificationRegistrationService _notificationRegistrationService;
IDeviceInstallationService _deviceInstallationService;
IPushDemoNotificationActionService NotificationActionService
=> _notificationActionService ??
(_notificationActionService =
ServiceContainer.Resolve<IPushDemoNotificationActionService>());
INotificationRegistrationService NotificationRegistrationService
=> _notificationRegistrationService ??
(_notificationRegistrationService =
ServiceContainer.Resolve<INotificationRegistrationService>());
IDeviceInstallationService DeviceInstallationService
=> _deviceInstallationService ??
(_deviceInstallationService =
ServiceContainer.Resolve<IDeviceInstallationService>());
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
global::Xamarin.Forms.Forms.Init();
Bootstrap.Begin(() => new DeviceInstallationService());
if (DeviceInstallationService.NotificationsSupported)
{
UNUserNotificationCenter.Current.RequestAuthorization(
UNAuthorizationOptions.Alert |
UNAuthorizationOptions.Badge |
UNAuthorizationOptions.Sound,
(approvalGranted, error) =>
{
if (approvalGranted && error == null)
RegisterForRemoteNotifications();
});
}
LoadApplication(new App());
using (var userInfo = options?.ObjectForKey(
UIApplication.LaunchOptionsRemoteNotificationKey) as NSDictionary)
ProcessNotificationActions(userInfo);
return base.FinishedLaunching(app, options);
}
void RegisterForRemoteNotifications()
{
MainThread.BeginInvokeOnMainThread(() =>
{
var pushSettings = UIUserNotificationSettings.GetSettingsForTypes(
UIUserNotificationType.Alert |
UIUserNotificationType.Badge |
UIUserNotificationType.Sound,
new NSSet());
UIApplication.SharedApplication.RegisterUserNotificationSettings(pushSettings);
UIApplication.SharedApplication.RegisterForRemoteNotifications();
});
}
Task CompleteRegistrationAsync(NSData deviceToken)
{
DeviceInstallationService.Token = deviceToken.ToHexString();
return NotificationRegistrationService.RefreshRegistrationAsync();
}
void ProcessNotificationActions(NSDictionary userInfo)
{
if (userInfo == null)
return;
try
{
var actionValue = userInfo.ObjectForKey(new NSString("action")) as NSString;
if (!string.IsNullOrWhiteSpace(actionValue?.Description))
NotificationActionService.TriggerAction(actionValue.Description);
}
catch (Exception ex)
{
Debug.WriteLine(ex.Message);
}
}
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
=> CompleteRegistrationAsync(deviceToken).ContinueWith((task)
=> { if (task.IsFaulted) throw task.Exception; });
public override void ReceivedRemoteNotification(
UIApplication application,
NSDictionary userInfo)
=> ProcessNotificationActions(userInfo);
public override void FailedToRegisterForRemoteNotifications(
UIApplication application,
NSError error)
=> Debug.WriteLine(error.Description);
}
}
DeviceInstallationService:
using System;
using Notes.Models;
using Notes.Services;
using UIKit;
namespace Notes.iOS.Services
{
public class DeviceInstallationService : IDeviceInstallationService
{
const int SupportedVersionMajor = 13;
const int SupportedVersionMinor = 0;
public string Token { get; set; }
public bool NotificationsSupported
=> UIDevice.CurrentDevice.CheckSystemVersion(SupportedVersionMajor, SupportedVersionMinor);
public string GetDeviceId()
=> UIDevice.CurrentDevice.IdentifierForVendor.ToString();
public DeviceInstallation GetDeviceInstallation(params string[] tags)
{
if (!NotificationsSupported)
throw new Exception(GetNotificationsSupportError());
if (string.IsNullOrWhiteSpace(Token))
throw new Exception("Unable to resolve token for APNS");
var installation = new DeviceInstallation
{
InstallationId = GetDeviceId(),
Platform = "apns",
PushChannel = Token
};
installation.Tags.AddRange(tags);
return installation;
}
string GetNotificationsSupportError()
{
if (!NotificationsSupported)
return $"This app only supports notifications on iOS {SupportedVersionMajor}.{SupportedVersionMinor} and above. You are running {UIDevice.CurrentDevice.SystemVersion}.";
if (Token == null)
return $"This app can support notifications but you must enable this in your settings.";
return "An error occurred preventing the use of push notifications";
}
}
}
As you can see this is really 1:1 the example code, the only difference is that my project is called Notes.
I skipped the Firebase and Android-Part as I only need push-notifications for iOS so far and as far as I underestood these are not necessary for iOS only.
Thanks your help!
Some points to check if RegisteredForRemoteNotification not called:
Open Entitlements.plist and ensure that Enable Push Notifications is checked when viewed in the Entitlements tab. Then, ensure the APS Environment setting is set to development when viewed in the Source tab.
Make sure that you are testing the remote-notification in a real device instead of a simulator. A simulator does not support remote-notification.
Make sure that you agreed receiving notification permission.
Make sure the certification you use has enabled the push notification ability.
Refer: configuring-the-remote-notifications-environment
You can look at the message returned from the following function in your App Delegate AppDelegate.cs
public override void FailedToRegisterForRemoteNotifications(
UIApplication application,
NSError error)
For instance
no valid “aps-environment” entitlement string found for application
I am performing instrumentation testing, in that I am invoking one of the activities which call 2 APIs when activity is created.
Now I want to write instrumentation test cases for this activity, where I have to mock the API response with mockWebServer of mockito. My mocking code works fine when I call one single API, but it fails when two APIs are getting called simultaneously.
Even there is another scenario let's say, we have API to fetch recent message data, but before that, we always authenticate the user by sending refresh token.
In such cases, we need to call API which authenticates the user and then another API to fetch message data. Hence we need to call 2 APIs one after another, let's say in a single method. How will I mock authentication API response and messages API response while writing test cases of that single method?
How should I deal with this issue? Is there any other approach to deal with such a situation where we need to call more than one API at the same time?
Also, I have used SystemClock.sleep(4000); as my callbacks were getting performed asynchronously.
Below is my code to mock API:
public class MyAPIActivityTest {
#Rule
public InstantTaskExecutorRule mInstantTaskExecutorRule = new InstantTaskExecutorRule();
#Rule
public ActivityTestRule<MyAPIActivity> myAPIActivityTestRule = new ActivityTestRule<>(MyAPIActivity.class, true, false);
MockWebServer mockWebServer;
#Before
public void setUp() {
MockitoAnnotations.initMocks(this);
}
#Test
public void checkVisibilityOfTaskListMockedValidData() throws Exception {
myAPIActivityTestRule.launchActivity(null);
String fileName = "json_files/valid_api_response.json";
mockWebServer = new MockWebServer();
int PORT_NUMBER = 50205;
mockWebServer.start(PORT_NUMBER);
ApiUrls.BASE_QUERY_URL = mockWebServer.url("/").toString();
mockWebServer.enqueue(new MockResponse()
.setBody(getStringFromFile(getContext(), fileName)));
SystemClock.sleep(4000);
Assert.assertEquals(View.VISIBLE, myAPIActivityTestRule.IvDataIsPresent.getVisibility());
Assert.assertEquals(View.GONE, myAPIActivityTestRule.IvDataNotPresent.getVisibility());
}
#After
public void tearDown() throws Exception {
mockWebServer.shutdown();
}
public static String convertStreamToString(InputStream inputStream) throws Exception {
BufferedReader reader = new BufferedReader(new InputStreamReader(inputStream));
StringBuilder stringBuilder = new StringBuilder();
String line;
while ((line = reader.readLine()) != null) {
stringBuilder.append(line).append(StringCharacters.NEW_LINE);
}
reader.close();
return stringBuilder.toString();
}
public static String getStringFromFile(Context context, String filePath) throws Exception {
final InputStream stream = context.getResources().getAssets().open(filePath);
String text = convertStreamToString(stream);
stream.close();
return text;
}
}
Any help is appreciated. Thanks in advance.
I love that Windows 10 now has support for virtual desktops built in, but I have some features that I'd like to add/modify (e.g., force a window to appear on all desktops, launch the task view with a hotkey, have per-monitor desktops, etc.)
I have searched for applications and developer references to help me customize my desktops, but I have had no luck.
Where should I start? I am looking for Windows API functions (ideally, that are callable from a C# application) that will give me programmatic access to manipulate virtual desktops and the windows therein.
The Windows SDK Support Team Blog posted a C# demo to switch Desktops via IVirtualDesktopManager:
[ComImport, InterfaceType(ComInterfaceType.InterfaceIsIUnknown), Guid("a5cd92ff-29be-454c-8d04-d82879fb3f1b")]
[System.Security.SuppressUnmanagedCodeSecurity]
public interface IVirtualDesktopManager
{
[PreserveSig]
int IsWindowOnCurrentVirtualDesktop(
[In] IntPtr TopLevelWindow,
[Out] out int OnCurrentDesktop
);
[PreserveSig]
int GetWindowDesktopId(
[In] IntPtr TopLevelWindow,
[Out] out Guid CurrentDesktop
);
[PreserveSig]
int MoveWindowToDesktop(
[In] IntPtr TopLevelWindow,
[MarshalAs(UnmanagedType.LPStruct)]
[In]Guid CurrentDesktop
);
}
[ComImport, Guid("aa509086-5ca9-4c25-8f95-589d3c07b48a")]
public class CVirtualDesktopManager
{
}
public class VirtualDesktopManager
{
public VirtualDesktopManager()
{
cmanager = new CVirtualDesktopManager();
manager = (IVirtualDesktopManager)cmanager;
}
~VirtualDesktopManager()
{
manager = null;
cmanager = null;
}
private CVirtualDesktopManager cmanager = null;
private IVirtualDesktopManager manager;
public bool IsWindowOnCurrentVirtualDesktop(IntPtr TopLevelWindow)
{
int result;
int hr;
if ((hr = manager.IsWindowOnCurrentVirtualDesktop(TopLevelWindow, out result)) != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
return result != 0;
}
public Guid GetWindowDesktopId(IntPtr TopLevelWindow)
{
Guid result;
int hr;
if ((hr = manager.GetWindowDesktopId(TopLevelWindow, out result)) != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
return result;
}
public void MoveWindowToDesktop(IntPtr TopLevelWindow, Guid CurrentDesktop)
{
int hr;
if ((hr = manager.MoveWindowToDesktop(TopLevelWindow, CurrentDesktop)) != 0)
{
Marshal.ThrowExceptionForHR(hr);
}
}
}
it includes the API to detect on which desktop the Window is shown and it can switch and move a Windows the a Desktop.
Programmatic access to the virtual desktop feature is very limited, as Microsoft has only exposed the IVirtualDesktopManager COM interface. It does provide two key functions:
IVirtualDesktopManager::GetWindowDesktopId allows you to retrieve the ID of a virtual desktop, based on a window that is already assigned to that desktop.
IVirtualDesktopManager::MoveWindowToDesktop allows you to move a window to a specific virtual desktop.
Unfortunately, this is not nearly enough to accomplish anything useful. I've written some C# code based on the reverse-engineering work done by NickoTin. I can't read much of the Russian in his blog post, but his C++ code was pretty accurate.
I do need to emphasize that this code is not something you want to commit to in a product. Microsoft always feels free to change undocumented APIs whenever they feel like it. And there is a runtime risk as well: this code does not necessarily interact well when the user is tinkering with the virtual desktops. Always keep in mind that a virtual desktop can appear and disappear at any time, completely out of sync with your code.
To use the code, create a new C# class library project. I'll first post ComInterop.cs, it contains the COM interface declarations that match NickoTin's C++ declarations:
using System;
using System.Runtime.InteropServices;
namespace Windows10Interop {
internal static class Guids {
public static readonly Guid CLSID_ImmersiveShell =
new Guid(0xC2F03A33, 0x21F5, 0x47FA, 0xB4, 0xBB, 0x15, 0x63, 0x62, 0xA2, 0xF2, 0x39);
public static readonly Guid CLSID_VirtualDesktopManagerInternal =
new Guid(0xC5E0CDCA, 0x7B6E, 0x41B2, 0x9F, 0xC4, 0xD9, 0x39, 0x75, 0xCC, 0x46, 0x7B);
public static readonly Guid CLSID_VirtualDesktopManager =
new Guid("AA509086-5CA9-4C25-8F95-589D3C07B48A");
public static readonly Guid IID_IVirtualDesktopManagerInternal =
new Guid("AF8DA486-95BB-4460-B3B7-6E7A6B2962B5");
public static readonly Guid IID_IVirtualDesktop =
new Guid("FF72FFDD-BE7E-43FC-9C03-AD81681E88E4");
}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("FF72FFDD-BE7E-43FC-9C03-AD81681E88E4")]
internal interface IVirtualDesktop {
void notimpl1(); // void IsViewVisible(IApplicationView view, out int visible);
Guid GetId();
}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("AF8DA486-95BB-4460-B3B7-6E7A6B2962B5")]
internal interface IVirtualDesktopManagerInternal {
int GetCount();
void notimpl1(); // void MoveViewToDesktop(IApplicationView view, IVirtualDesktop desktop);
void notimpl2(); // void CanViewMoveDesktops(IApplicationView view, out int itcan);
IVirtualDesktop GetCurrentDesktop();
void GetDesktops(out IObjectArray desktops);
[PreserveSig]
int GetAdjacentDesktop(IVirtualDesktop from, int direction, out IVirtualDesktop desktop);
void SwitchDesktop(IVirtualDesktop desktop);
IVirtualDesktop CreateDesktop();
void RemoveDesktop(IVirtualDesktop desktop, IVirtualDesktop fallback);
IVirtualDesktop FindDesktop(ref Guid desktopid);
}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("a5cd92ff-29be-454c-8d04-d82879fb3f1b")]
internal interface IVirtualDesktopManager {
int IsWindowOnCurrentVirtualDesktop(IntPtr topLevelWindow);
Guid GetWindowDesktopId(IntPtr topLevelWindow);
void MoveWindowToDesktop(IntPtr topLevelWindow, ref Guid desktopId);
}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("92CA9DCD-5622-4bba-A805-5E9F541BD8C9")]
internal interface IObjectArray {
void GetCount(out int count);
void GetAt(int index, ref Guid iid, [MarshalAs(UnmanagedType.Interface)]out object obj);
}
[ComImport]
[InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
[Guid("6D5140C1-7436-11CE-8034-00AA006009FA")]
internal interface IServiceProvider10 {
[return: MarshalAs(UnmanagedType.IUnknown)]
object QueryService(ref Guid service, ref Guid riid);
}
}
Next is Desktop.cs. It contains the friendly C# classes that you can use in your code:
using System;
using System.Runtime.InteropServices;
namespace Windows10Interop
{
public class Desktop {
public static int Count {
// Returns the number of desktops
get { return DesktopManager.Manager.GetCount(); }
}
public static Desktop Current {
// Returns current desktop
get { return new Desktop(DesktopManager.Manager.GetCurrentDesktop()); }
}
public static Desktop FromIndex(int index) {
// Create desktop object from index 0..Count-1
return new Desktop(DesktopManager.GetDesktop(index));
}
public static Desktop FromWindow(IntPtr hWnd) {
// Creates desktop object on which window <hWnd> is displayed
Guid id = DesktopManager.WManager.GetWindowDesktopId(hWnd);
return new Desktop(DesktopManager.Manager.FindDesktop(ref id));
}
public static Desktop Create() {
// Create a new desktop
return new Desktop(DesktopManager.Manager.CreateDesktop());
}
public void Remove(Desktop fallback = null) {
// Destroy desktop and switch to <fallback>
var back = fallback == null ? DesktopManager.GetDesktop(0) : fallback.itf;
DesktopManager.Manager.RemoveDesktop(itf, back);
}
public bool IsVisible {
// Returns <true> if this desktop is the current displayed one
get { return object.ReferenceEquals(itf, DesktopManager.Manager.GetCurrentDesktop()); }
}
public void MakeVisible() {
// Make this desktop visible
DesktopManager.Manager.SwitchDesktop(itf);
}
public Desktop Left {
// Returns desktop at the left of this one, null if none
get {
IVirtualDesktop desktop;
int hr = DesktopManager.Manager.GetAdjacentDesktop(itf, 3, out desktop);
if (hr == 0) return new Desktop(desktop);
else return null;
}
}
public Desktop Right {
// Returns desktop at the right of this one, null if none
get {
IVirtualDesktop desktop;
int hr = DesktopManager.Manager.GetAdjacentDesktop(itf, 4, out desktop);
if (hr == 0) return new Desktop(desktop);
else return null;
}
}
public void MoveWindow(IntPtr handle) {
// Move window <handle> to this desktop
DesktopManager.WManager.MoveWindowToDesktop(handle, itf.GetId());
}
public bool HasWindow(IntPtr handle) {
// Returns true if window <handle> is on this desktop
return itf.GetId() == DesktopManager.WManager.GetWindowDesktopId(handle);
}
public override int GetHashCode() {
return itf.GetHashCode();
}
public override bool Equals(object obj) {
var desk = obj as Desktop;
return desk != null && object.ReferenceEquals(this.itf, desk.itf);
}
private IVirtualDesktop itf;
private Desktop(IVirtualDesktop itf) { this.itf = itf; }
}
internal static class DesktopManager {
static DesktopManager() {
var shell = (IServiceProvider10)Activator.CreateInstance(Type.GetTypeFromCLSID(Guids.CLSID_ImmersiveShell));
Manager = (IVirtualDesktopManagerInternal)shell.QueryService(Guids.CLSID_VirtualDesktopManagerInternal, Guids.IID_IVirtualDesktopManagerInternal);
WManager = (IVirtualDesktopManager)Activator.CreateInstance(Type.GetTypeFromCLSID(Guids.CLSID_VirtualDesktopManager));
}
internal static IVirtualDesktop GetDesktop(int index) {
int count = Manager.GetCount();
if (index < 0 || index >= count) throw new ArgumentOutOfRangeException("index");
IObjectArray desktops;
Manager.GetDesktops(out desktops);
object objdesk;
desktops.GetAt(index, Guids.IID_IVirtualDesktop, out objdesk);
Marshal.ReleaseComObject(desktops);
return (IVirtualDesktop)objdesk;
}
internal static IVirtualDesktopManagerInternal Manager;
internal static IVirtualDesktopManager WManager;
}
}
And finally a little test WinForms project that I used to test the code. Just drop 4 buttons on a form and name them buttonLeft/Right/Create/Destroy:
using Windows10Interop;
using System.Diagnostics;
...
public partial class Form1 : Form {
public Form1() {
InitializeComponent();
}
private void buttonRight_Click(object sender, EventArgs e) {
var curr = Desktop.FromWindow(this.Handle);
Debug.Assert(curr.Equals(Desktop.Current));
var right = curr.Right;
if (right == null) right = Desktop.FromIndex(0);
if (right != null) {
right.MoveWindow(this.Handle);
right.MakeVisible();
this.BringToFront();
Debug.Assert(right.IsVisible);
}
}
private void buttonLeft_Click(object sender, EventArgs e) {
var curr = Desktop.FromWindow(this.Handle);
Debug.Assert(curr.Equals(Desktop.Current));
var left = curr.Left;
if (left == null) left = Desktop.FromIndex(Desktop.Count - 1);
if (left != null) {
left.MoveWindow(this.Handle);
left.MakeVisible();
this.BringToFront();
Debug.Assert(left.IsVisible);
}
}
private void buttonCreate_Click(object sender, EventArgs e) {
var desk = Desktop.Create();
desk.MoveWindow(this.Handle);
desk.MakeVisible();
Debug.Assert(desk.IsVisible);
Debug.Assert(desk.Equals(Desktop.Current));
}
private void buttonDestroy_Click(object sender, EventArgs e) {
var curr = Desktop.FromWindow(this.Handle);
var next = curr.Left;
if (next == null) next = curr.Right;
if (next != null && next != curr) {
next.MoveWindow(this.Handle);
curr.Remove(next);
Debug.Assert(next.IsVisible);
}
}
}
The only real quirk I noticed while testing this is that moving a window from one desktop to another can move it to the bottom of the Z-order when you first switch the desktop, then move the window. No such problem if you do it the other way around.
There is this guy that made a application to map keyboard shorcut to move a window between virtual desktop.
https://github.com/Grabacr07/SylphyHorn
(I use it every day )
He has a blog where he explain what he did
http://grabacr.net/archives/5701 ( you can use google translate it is in japanese)
He in fact used the same api mantionned in the Alberto Tostado response.
http://www.cyberforum.ru/blogs/105416/blog3671.html
and the api can be found on his github https://github.com/Grabacr07/VirtualDesktop
The api is really simple to use BUT it seems impossible to move a window from another process.
public static bool MoveToDesktop(IntPtr hWnd, VirtualDesktop virtualDesktop)
{
ThrowIfNotSupported();
int processId;
NativeMethods.GetWindowThreadProcessId(hWnd, out processId);
if (Process.GetCurrentProcess().Id == processId) // THAT LINE
{
var guid = virtualDesktop.Id;
VirtualDesktop.ComManager.MoveWindowToDesktop(hWnd, ref guid);
return true;
}
return false;
}
To workaround this problem they made another implementation that they use alongside the one in the russian blog
if (VirtualDesktopHelper.MoveToDesktop(hWnd, right) //<- the one in the russian blog
|| this.helper.MoveWindowToDesktop(hWnd, right.Id)) <- the second implementation
The second implementation can be found here: https://github.com/tmyt/VDMHelper
This one can move a window from another process to another desktop. BUT it is buggy right now. For exemple when i try to move some window like google chrome it crash.
So this is the result of my research. I m rigth now trying to make a StickyWindow feature with these api.
I fear that all about "Virtual desktops" in Windows 10 is undocumented, but in a Russian page I've seen documented the interfaces. I don't speak Russian but seems that they have used reversed engineering. Anyway, the code is very clear (Thanks to them!).
Keep an eye here:
http://www.cyberforum.ru/blogs/105416/blog3671.html
I've been trying to see if the old API's CreateDesktop, OpenDesktop, etc... is linked to the new Virtual-Desktops, but no way...
The interfaces work with the final production release of Windows 10 (2015-05-08), but you shouldn't use them in a real wide distributed application until Microsoft documents them. Too much risk.
Regards.
I am using Monotouch for mac and have gone through the steps to retrieve a provisioning profile certificate enabling push notification in the process. I have a working app and am now experimenting with apns-sharp and moon-apns but cant' figure out how to retrieve my device token. I'm hoping someone can provide me with detailed and straightforward steps to achieve this.
In your FinishedLaunching method, register the app for remote notifications, through the UIApplication object you get in it:
// Pass the UIRemoteNotificationType combinations you want
app.RegisterForRemoteNotificationTypes(UIRemoteNotificationType.Alert |
UIRemoteNotificationType.Sound);
Then, in your AppDelegate class, override the RegisteredForRemoteNotifications method:
public override void RegisteredForRemoteNotifications (UIApplication application, NSData deviceToken)
{
// The device token
byte[] token = deviceToken.ToArray();
}
You also have to override the FailedToRegisterForRemoteNotifications method, to handle the error, if any:
public override void FailedToRegisterForRemoteNotifications (UIApplication application, NSError error)
{
// Do something with the error
}
As of iOS deviceToken has changed. The following code worked for me to convert deviceToken as NSData to a string.
string deviceTokenString;
if (UIDevice.CurrentDevice.CheckSystemVersion(13, 0))
{
deviceTokenString = BitConverter.ToString(deviceToken.ToArray()).Replace("-", string.Empty);
}
else
{
deviceTokenString = Regex.Replace(deviceToken.ToString(), "[^0-9a-zA-Z]+", string.Empty);
}
For me this was only half of the resolution. To use the DeviceToken from a webserver (PHP in my case), the DeviceToken needs to be a Hex String used in the PHP code for firing the Push Notification (e.g. as shown here: [Using PHP to send iOS Push Notifications via APNs
However, the NSdata object offers no simple way to provide that Hex String.
So my "RegisteredForRemoteNotifications" success handler is now:
public override void RegisteredForRemoteNotifications(UIApplication application, NSData deviceToken)
{
// Get current device token
var DeviceToken = Tools.ByteToHex(deviceToken.ToArray());
string DeviceID = UIDevice.CurrentDevice.IdentifierForVendor.AsString();
System.Console.WriteLine("### UserNotification Device Token = " + DeviceToken + ", DeviceID = " + DeviceID);
// Get previous device token
var oldDeviceToken = NSUserDefaults.StandardUserDefaults.StringForKey("PushDeviceToken");
// Has the token changed?
if (string.IsNullOrEmpty(oldDeviceToken) || !oldDeviceToken.Equals(DeviceToken))
{
//### todo: Populate POSTdata set
//### todo: Send POSTdata to URL
// Save new device token
NSUserDefaults.StandardUserDefaults.SetString(DeviceToken, "PushDeviceToken");
}
}
And for the Byte to Hex Conversion:
public static string ByteToHex(byte[] data)
{
StringBuilder sb = new StringBuilder(data.Length * 2);
foreach (byte b in data)
{
sb.AppendFormat("{0:x2}", b);
}
return sb.ToString();
}
Now you can use the DeviceToken in PHP to create the PushNotification submission.
I have a WCF REST service that takes some parameters and sends an email. The template for the email is an MVC3 action. Essentially I want to render that action to a string.
If it were an ASP.NET WebForm, I could simply use Server.Execute(path, stringWriter, false). However when I plug in the path to my action, I get Error executing child request.
I have full access to HttpContext from my service (AspNetCompatibilityRequirementsMode.Allowed).
I know there are other answers out there for rendering actions to strings from within the context of a controller. How do I do this when I'm outside that world, but still on the same server (and, for that matter, in the same app)?
I cobbled together an answer based on several different google searches. It works, but I'm not 100% sure it's as lean as it could be. I'll paste the code for others to try.
string GetEmailText(TemplateParameters parameters) {
// Get the HttpContext
HttpContextBase httpContextBase =
new HttpContextWrapper(HttpContext.Current);
// Build the route data
var routeData = new RouteData();
routeData.Values.Add("controller", "EmailTemplate");
routeData.Values.Add("action", "Create");
// Create the controller context
var controllerContext = new ControllerContext(
new RequestContext(httpContextBase, routeData),
new EmailTemplateController());
var body = ((EmailTemplateController)controllerContext.Controller)
.Create(parameters).Capture(controllerContext);
return body;
}
// Using code from here:
// http://blog.approache.com/2010/11/render-any-aspnet-mvc-actionresult-to.html
public class ResponseCapture : IDisposable
{
private readonly HttpResponseBase response;
private readonly TextWriter originalWriter;
private StringWriter localWriter;
public ResponseCapture(HttpResponseBase response)
{
this.response = response;
originalWriter = response.Output;
localWriter = new StringWriter();
response.Output = localWriter;
}
public override string ToString()
{
localWriter.Flush();
return localWriter.ToString();
}
public void Dispose()
{
if (localWriter != null)
{
localWriter.Dispose();
localWriter = null;
response.Output = originalWriter;
}
}
}
public static class ActionResultExtensions
{
public static string Capture(this ActionResult result, ControllerContext controllerContext)
{
using (var it = new ResponseCapture(controllerContext.RequestContext.HttpContext.Response))
{
result.ExecuteResult(controllerContext);
return it.ToString();
}
}
}