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INExtension.GetHandler(INIntent) Method

Definition

Developers override this method to return the handler object if intent is one their extension can respond to.

[Foundation.Export("handlerForIntent:")]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.iOS, 10, 0, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Introduced(ObjCRuntime.PlatformName.WatchOS, 3, 2, ObjCRuntime.PlatformArchitecture.All, null)]
[ObjCRuntime.Unavailable(ObjCRuntime.PlatformName.MacOSX, ObjCRuntime.PlatformArchitecture.All, null)]
public virtual Foundation.NSObject GetHandler (Intents.INIntent intent);
abstract member GetHandler : Intents.INIntent -> Foundation.NSObject
override this.GetHandler : Intents.INIntent -> Foundation.NSObject

Parameters

intent
INIntent

The INIntent received by the system.

Returns

The developer's handler object or null if intent is not handled by the extension.

Implements

Attributes

Remarks

The developer's handler object must implement the IIN{Intent}Handling interface appropriate to the type(s) of INIntent for which this method returns the handler. For instance:

class MyExtension : INExtension
{
    override public NSObject GetHandler (INIntent intent)
    {
        if (intent is INSendMessageIntent)
        {
            return new MySendMessageHandler ();
        }
        return null;
    }
}

class MySendMessageHandler : NSObject, IINSendMessageIntentHandling
{
    public void HandleSendMessage (INSendMessageIntent intent, Action<INSendMessageIntentResponse> completion)
    {
        // ... Send a message here ...

        var activity = new NSUserActivity (nameof (INSendMessageIntent));
        var response = new INSendMessageIntentResponse (INSendMessageIntentResponseCode.Success, activity);
        completion (response);
    }
}

Applies to