README.md

From Widgets to Slices with App Actions

• Slices official docs g.co/slices
• App Actions docs g.co/appactions
• Slice I/O 18 talk https://www.youtube.com/watch?v=a7IVH5aNwwc
• FitActions Sample https://github.com/actions-on-google/appactions-fitness-kotlin

BaseSlice.kt

abstract class BaseSlice(val context: Context, val sliceUri: Uri) {

    /**
     * @return the slice implementation to be used by SliceProvider
     */
    abstract fun buildSlice(): Slice

    /**
     * Call refresh to notify the SliceProvider to load again.
     */
    protected fun refresh() {
        context.contentResolver.notifyChange(sliceUri, null)
    }
}

BaseSliceProvider.kt

class BaseSlicesProvider : SliceProvider() {

    private val lastSlices = mutableMapOf<Uri, BaseSlice>()

    override fun onBindSlice(sliceUri: Uri): Slice {
        val slice = lastSlices.getOrPut(sliceUri) {
            createNewSlice(sliceUri)
        }
        return slice.buildSlice()
    }
    
    override fun onCreateSliceProvider(): Boolean {
        // Initialise your code
        return true
    }
    
    open fun createNewSlice(sliceUri: Uri): BaseSlice
}

ComplexSliceExample.kt

private fun createOrderSlice(data: Any): Slice {
    return list(context = context, uri = sliceUri, ttl = ListBuilder.INFINITY) {
        header {
            title = "Your Order"
            subtitle = "Status: ${data.order.status.name}"
            primaryAction = createSliceAction {
                appendPath(DeepLink.AwesomeSlices.PATH)
                appendPath(DeepLink.AwesomeSlices.SHOW_ORDER)
            }
        }
        data.items.forEach { item ->
            row {
                title = getItemTitle(data, item)
                subtitle = "${item.price}$"
            }
        }
        range {
            title = "Estimated arrival"
            subtitle = getEta(data)
            value = getStep(data)
            max = MAX_STEPS
        }
    }
}