INExtension.GetHandler(INIntent) Method

Reference

Definition

Namespace:: Intents

Assembly:: Xamarin.iOS.dll

Important

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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

NSObject

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

Implements

GetHandler(INIntent)

Attributes: ExportAttribute IntroducedAttribute UnavailableAttribute

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

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