MySliceProvider.kt

class TodoProvider : SliceProvider() {

    override fun onCreateSliceProvider() = true

    override fun onBindSlice(sliceUri: Uri): Slice? {
        val context = context ?: return null
        val activityAction = createActivityAction() ?: return null
        return if (sliceUri.path == "/todo") {
            list(context, sliceUri, ListBuilder.INFINITY) {
                header {
                    title = "What's on my Aircall to-do list"
                    subtitle = "2 tasks"
                    primaryAction = createActivityAction()
                }
                row {
                    setTodoTask("+33 6 66 66 66 66", "Assign to you\nA note was added", Date(1621413900000))
                }
                row {
                    setTodoTask("Aircall new account +33 6 66 66 66 66", "Assign to you\nA note was added", Date(1619426700000))
                }
            }
        } else {
            // Display error/default slice
        }
    }
    
    private fun createActivityAction(): SliceAction? {
        return SliceAction.create(
            PendingIntent.getActivity(context, 0, Intent(context, MyActivity::class.java), 0),
            IconCompat.createWithResource(context, R.drawable.ic_logo),
            ICON_IMAGE, "Go to to-do"
        )
    }

    private fun RowBuilderDsl.setTodoTask(title: String, desc: String, date: Date) {
        setTitle("Call $title")
        setSubtitle(desc)
        addEndItem(date.time)
        addEndItem(IconCompat.createWithResource(context, R.drawable.ic_call), ICON_IMAGE)
    }
}