How to test toast in Android Instrumented Test with Compose?

I want to write instrumented tests for Android UI's toasts. But it seems my codes are not working. It can't catch the toast when it's actually displayed on phone. I think possibly issue with my toast Matcher.

Language: Kotlin, API 36, Compose UI

class SimpleToastMatcher : TypeSafeMatcher<Root>() {
    override fun matchesSafely(root: Root): Boolean {
        val type = root.windowLayoutParams.get().type
        if (type == WindowManager.LayoutParams.TYPE_TOAST) {
            return true
        }
        // For overlays that might be toasts (e.g., on API 30+)
        // they are typically not focusable.
        if (type == WindowManager.LayoutParams.TYPE_APPLICATION_OVERLAY) {
            return !root.decorView.isFocusable && !root.decorView.isFocusableInTouchMode
        }
        return false
    }

    override fun describeTo(description: Description?) {
        description?.appendText("is toast")
    }
}

onView(withText(toastText))
            .inRoot(SimpleToastMatcher())
            .check(matches(isDisplayed()))

Expect the test to verify if the toast is displayed, but test fail because it can't detect toasts when it's actually shown on screen and timed out.