How to launch in-app review flow - Use current Activity context or create new Activity?

Question

Using the guide from Google, we get the following Kotlin code to launch the in-app review process...

val activity = ??? // what should we use for activity?
val manager = ReviewManagerFactory.create(activity)
val request = manager.requestReviewFlow()

request.addOnCompleteListener { task ->
    if (task.isSuccessful) {
        // We got the ReviewInfo object
        val reviewInfo = task.result
        val flow = manager.launchReviewFlow(activity, reviewInfo)
        flow.addOnCompleteListener { _ ->
            // The flow has finished. The API does not indicate whether the user
            // reviewed or not, or even whether the review dialog was shown. Thus, no
            // matter the result, we continue our app flow.
        }
    } else {
        // There was some problem, log or handle the error code.
        @ReviewErrorCode val reviewErrorCode = (task.getException() as ReviewException).errorCode
    }
}

https://developer.android.com/guide/playcore/in-app-review/kotlin-java

However, I can't find any guidance on whether a new activity should be created, or whether the currently running activity should be used.

I would like to request the review after users have posted something in my app. However, it's unclear where I fit this into my usual control flow between my ViewModel and Composables.

Thanks for the help!

Answer 1

You can use current activity context.

Directly call review from your composable function and cast local context as activity.

Something like this:

fun launchInAppReview(context: Context) {
    val reviewManager = ReviewManagerFactory.create(context as Activity)
    val requestReviewFlow = reviewManager.requestReviewFlow()
    requestReviewFlow.addOnCompleteListener { request ->
        if (request.isSuccessful) {
            val reviewInfo = request.result
            reviewManager.launchReviewFlow(context, reviewInfo)
        } else {
            Timber.e(request.exception?.localizedMessage)
        }
    }
}

And just call above function from composable:

@Composable
private fun SampleApp(viewModel: MyViewModel) {
    val state by viewModel.state.collectAsState()
    val context = LocalContext.current

    LaunchedEffect(key1 = state.showInAppReviewPrompt) {
        if (state.showInAppReviewPrompt) {
            launchInAppReview(context)
        }
    }
}