Android Question Intent response or onActivityResult?

[Jeffrey Cameron]

This is my first time trying intents, so please be gentle with me

I'm trying to get a response from another (not my app) activity that I start with an intent, but when my app resumes the intent extras is empty and the Intent.GetData is null.

I know the intent is being handled correctly as I see the activity I am starting show up, and my app resumes when it closes. Their example test app seems to communicate with their app just fine. It's a pretty simple request:

Dim poIn As Intent
poIn.Initialize("com.whateverapp.action.REQUEST", "")
poIn.PutExtra("Extra_1", "Some Data")
poIn.PutExtra("Extra_2", 5)
StartActivity(poIn)

Is there something I need to add to the manifest to see the response? The app's SDK says it can, "return a response as a string from the "response" extra of the onActivityResult" but I don't see an event prototype for that in the Intellisense for the Activity subs.

Any direction to look would be helpful, thanks!

 

[Erel]

Go over this tutorial: Using StartActivityForResult with JavaObject

 

[Jeffrey Cameron]

That was exactly what I needed, thanks Erel!

 

[Jeffrey Cameron]

One question, though...

I'm trying to encapsulate the app-to-app intents within a class and in your example you linked, you're accessing the Activity object and sinking the event back to that, is there any way to handle this internally in a class or must it be housed in an Activity?

 

[Jeffrey Cameron]

Ok, I lied, two more questions

The second question being, when my activity restarts in the Activity_Resume event how can I tell if my app is restarting because the user launched it or I'm waiting for the "ion_Event to fire? There does not appear to be any way to detect this via the resume's intent. Am I going to have to write a state file to disk and hope the other app actually does fire the "ion_Event" at some point?

 

[Erel]

It should be called from the Activity.

ion_Event will be called before Activity_Resume. You can use a global flag that is set in ion_Event and checked in Activity_Resume.

 

[Jeffrey Cameron]

Perfect, that tells me what I need to know.

I will use the activity events to sink back to the class and I had incorrectly assumed the Activity_Resume would fire first.

Thanks again!