Accessibility Is Now a Market-Access Rule: The European Accessibility Act for Android Teams

@Composable
fun ProductCard(product: Product, onAddToCart: () -> Unit, onFavourite: () -> Unit) {
    Card(
        Modifier.semantics(mergeDescendants = true) {
            // One focus stop for the card, with its secondary action exposed to TalkBack.
            customActions = listOf(
                CustomAccessibilityAction("Add to favourites") { onFavourite(); true }
            )
        }
    ) {
        Image(painterResource(product.imageRes), contentDescription = null) // decorative: the title names it
        Text(product.name, Modifier.semantics { heading() })
        Text(product.priceLabel)
        IconButton(onClick = onAddToCart) {                             // 48dp target by default
            Icon(Icons.Filled.Add, contentDescription = "Add ${product.name} to cart")
        }
    }
}

// 2.5.7 Dragging Movements: reordering must not require a drag.
@Composable
fun ReorderableRow(item: Item, index: Int, onMove: (from: Int, to: Int) -> Unit) {
    Row(
        Modifier.semantics {
            customActions = listOf(
                CustomAccessibilityAction("Move up") { onMove(index, index - 1); true },
                CustomAccessibilityAction("Move down") { onMove(index, index + 1); true },
            )
        }
    ) {
        Text(item.title, Modifier.weight(1f))
        IconButton(onClick = { onMove(index, index - 1) }) {            // visible single-pointer path
            Icon(Icons.Filled.KeyboardArrowUp, contentDescription = "Move ${item.title} up")
        }
    }
}

@get:Rule
val composeTestRule = createAndroidComposeRule<ComponentActivity>()

@Before
fun enableChecks() {
    composeTestRule.enableAccessibilityChecks()   // needs ui-test-junit4-accessibility, Compose 1.8.0+
}

@Test
fun checkout_isAccessible() {
    composeTestRule.setContent { CheckoutScreen(cart = sampleCart) }

    // Explicit check of the whole tree...
    composeTestRule.onRoot().tryPerformAccessibilityChecks()

    // ...and every action from here on is checked too.
    composeTestRule.onNodeWithText("Pay now").performClick()
}