Uno - Calling Emit("eventname", "payload") from external Objective-C file

aeq · September 3, 2019, 3:25pm

I got an external Objective-C file and I need to fire an event all the way to JS, the problem I’m having is that the NativeEventEmitterModule.Emit() function is not static, and so calling functions from an Objective-C file all the way to JS calls them statically which doesn’t work, any ideas around this?

aeq · September 4, 2019, 6:20am

Figured it out! For anyone else that will have this issue, I ended up following something similar to Fuse.LocalNotifications:

github.com

fuse-open/fuselibs/blob/df9f2fa9289214ebdd37dad019c1646f813b2ade/Source/Fuse.LocalNotifications/iOS/AppDelegateLocalNotify.mm#L39


	if (notification.alertAction)
		[userInfo setObject:notification.alertAction forKey:@"title"];
	if (notification.alertBody)
		[userInfo setObject:notification.alertBody forKey:@"body"];


	NSData* jsonData = [NSJSONSerialization dataWithJSONObject:userInfo options:0 error:&err];
	if (jsonData)
	{
		NSString* nsJsonPayload = [[NSString alloc] initWithData:jsonData encoding:NSUTF8StringEncoding];
		@{Uno.String} jsonPayload = uPlatform::iOS::ToUno(nsJsonPayload);
		@{Fuse.LocalNotifications.iOSImpl.OnReceivedLocalNotification(string):Call(jsonPayload)};
	}
}


@end

github.com

fuse-open/fuselibs/blob/df9f2fa9289214ebdd37dad019c1646f813b2ade/Source/Fuse.LocalNotifications/JS.uno#L47


			var onReceivedMessage = new NativeEvent("onReceivedMessage");


			On("receivedMessage", onReceivedMessage);


			AddMember(new NativeFunction("now", Now));
			AddMember(new NativeFunction("later", Later));
			AddMember(new NativeFunction("clearBadgeNumber", ClearBadgeNumber));
			AddMember(new NativeFunction("clearAllNotifications", ClearAllNotifications));
			AddMember(onReceivedMessage);


			Fuse.LocalNotifications.Notify.Received += OnReceived;
		}
		
		/**
			@scriptevent receivedMessage
		*/
		void OnReceived(object sender, string message)
		{
			Emit("receivedMessage", message);
		}

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Uno - Calling Emit("eventname", "payload") from external Objective-C file

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