Revision control
Copy as Markdown
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
// This is example code for the 'Simplified Example' section of
// /docs/architecture-overview.md
class HistoryFragment : Fragment() {
private val store by lazy {
StoreProvider.get(this) {
HistoryStore(
initialState = HistoryState.initial,
middleware = listOf(
HistoryNavigationMiddleware(findNavController())
HistoryStorageMiddleware(HistoryStorage()),
HistoryTelemetryMiddleware(),
)
)
}
}
override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
return ComposeView(requireContext()).apply {
setContent {
HistoryScreen(store)
}
}
}
}
@Composable
private fun HistoryScreen(store: HistoryStore) {
val state = store.observeAsState(initialValue = HistoryState.initial) { state -> state }
val listState = rememberLazyListState()
LazyColumn(listState) {
if (state.selectedItems.isNotEmpty()) {
HistoryMultiSelectHeader(
onDeleteSelectedClick = {
store.dispatch(HistoryAction.DeleteItems(state.selectedItems))
}
)
} else {
HistoryHeader(
onDeleteAllClick = { store.dispatch(HistoryAction.DeleteItems(state.items)) }
)
}
items(items = state.displayItems, key = { item -> item.id } ) { item ->
val isSelected = state.selectedItems.find { selectedItem ->
selectdItem == item
}
HistoryItem(
item = item,
isSelected = isSelected,
onClick = { store.dispatch(HistoryAction.OpenItem(item)) },
onLongClick = { store.dispatch(HistoryAction.ToggleItemSelection(item)) },
onDeleteClick = { store.dispatch(HistoryAction.DeleteItems(listOf(item))) },
)
}
}
}