Manav Tamboli manavtamboli

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Self Taught Android Developer

manavtamboli / Infinite List in Jetpack Compose - Buffer Usage.kt

Last active January 14, 2024 05:02

	@Composable
	fun MyContent(listItems : List<Data>){

	val listState = rememberLazyListState()
	LazyColumn(state = listState){
	items(listItems){
	// ...
	}
	}

manavtamboli / Infinite List in Jetpack Compose - Usage.kt

Created July 3, 2021 09:12

	@Composable
	fun MyContent(listItems : List<Data>){

	val listState = rememberLazyListState()
	LazyColumn(state = listState){
	items(listItems){
	// ...
	}
	}

manavtamboli / Infinite List in Jetpack Compose - Step 3.kt

Last active July 3, 2021 09:01

	@Composable
	fun LazyListState.OnBottomReached(
	loadMore : () -> Unit
	){
	val shouldLoadMore = remember {
	derivedStateOf {
	val lastVisibleItem = layoutInfo.visibleItemsInfo.lastOrNull()
	?: return@derivedStateOf true

	lastVisibleItem.index == layoutInfo.totalItemsCount - 1

manavtamboli / Infinite List in Jetpack Compose - Step 2.kt

Created July 2, 2021 19:48

	@Composable
	fun LazyListState.OnBottomReached(
	loadMore : () -> Unit
	){
	// state object which tells us if we should load more
	val shouldLoadMore = remember {
	derivedStateOf {

	// get last visible item
	val lastVisibleItem = layoutInfo.visibleItemsInfo.lastOrNull()

manavtamboli / Infinite List in Jetpack Compose - Step 0.kt

Last active July 3, 2021 09:10

	@Composable
	fun MyContent(listItems : List<Data>){

	val listState = rememberLazyListState()
	LazyColumn(state = listState){
	items(listItems){
	// ...
	}
	}

manavtamboli / Infinite List in Jetpack Compose - Step 1.kt

Last active July 2, 2021 19:38

	@Composable
	fun LazyListState.OnBottomReached(
	loadMore : () -> Unit
	){
	// ...
	}

manavtamboli / Reusability in Android List Adapter - Usage.kt

Created April 3, 2021 04:01

	// ToDoItem -> Data Class to hold item data
	// ToDoDiff -> Diff Object for ToDoItem Class

	class TodoAdapter : AdapterX<TodoItem>(R.layout.item_todo, ToDoDiff){

	override fun ViewHolder.onBind(item: TodoItem) {
	val todoNameTextView : TextView = itemView.findViewById(R.id.todo_name)
	val isCompleted : CheckBox = itemView.findViewById(R.id.todo_completed)

	todoNameTextView.text = item.name

manavtamboli / Reusability in Android List Adapter - Step 3.kt

Created April 3, 2021 03:55

	// Make the class abstract
	abstract class AdapterX <T>(
	@LayoutRes private val layoutResId : Int,
	diff : DiffUtil.ItemCallback<T>
	) : ListAdapter<T, AdapterX.ViewHolder>(diff){

	// An Extension function for ViewHolder with the List Item as Parameter
	// Make it abstract so that it can be overridden
	abstract fun ViewHolder.onBind(item : T)

manavtamboli / Reusability in Android List Adapter - Step 2.kt

Created April 3, 2021 03:42


	// Added Parameter for the Layout Resource to inflate
	class AdapterX<T>(
	@LayoutRes private val layoutResId : Int,
	diff : DiffUtil.ItemCallback<T>
	) : ListAdapter<T, AdapterX.ViewHolder>(diff){

	override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
	val view = LayoutInflater.from(parent.context).inflate(layoutResId, parent, false)
	return ViewHolder(view)

manavtamboli / Reusability in Android List Adapter - Step 1.kt

Created April 3, 2021 03:31

	class AdapterX<T>(diff L DiffUtil.ItemCallback<T>) : ListAdapter<T, AdapterX.ViewHolder>(diff){


	// A Common Viewholder class for all adapters
	class ViewHolder(view : View) : RecyclerView.ViewHolder(view)
	}