Hello, everyone! :wave: I’m having some issues wit...

# compose

[escodro]

Hello, everyone! 👋
I’m having some issues with Instrumented Tests. Could you help me please?

Basically my MainActivity contains a LocalBackPressedDispatcher to handle back presses. The code is similar to:

setContent {
    AlkaaTheme {
        CompositionLocalProvider(LocalBackPressedDispatcher provides onBackPressedDispatcher) {
            NavGraph()
        }
    }
}

But now my tests are failing with No Back Dispatcher provided but I’m not finding a way to provide it.

composeTestRule.setContent {
    AlkaaTheme {
        CompositionLocalProvider(
            LocalBackPressedDispatcher provides onBackPressedDispatcher //unresolved reference
        ) {
            NavGraph()
        }
    }
}

I tried with both createComposeRule() and createEmptyComposeRule() .

Thanks a lot!

[Ian Lake]

What is a "LocalBackPressedDispatcher" and why aren't you using the androidx.activity APIs specifically for handling the system back button? https://developer.android.com/reference/kotlin/androidx/activity/compose/package-summary#backhandler

[escodro]

Well, I was just following official samples. 🙂
Jetchat heavily relies on it.
https://github.com/android/compose-samples/blob/ef5b972bdeffa711ef4188a3452aea54a3[…]at/app/src/main/java/com/example/compose/jetchat/NavActivity.kt

I didn’t know that there was a simpler solution. Thanks Ian! I will take a look on it. 😊