SnapshotStateList

Kotlin |Java

@Stable class SnapshotStateList<T> : MutableList<T>, StateObject

kotlin.Any
↳	androidx.compose.runtime.snapshots.SnapshotStateList

An implementation of MutableList that can be observed and snapshot. This is the result type created by androidx.compose.mutableStateListOf.

This class closely implements the same semantics as ArrayList.

Summary

Nested classes
	`StateListStateRecord` This is an internal implementation class of SnapshotStateList.

Public constructors
`<init>()` An implementation of MutableList that can be observed and snapshot.

Public methods
Boolean	`add(element: T)`
Unit	`add(index: Int, element: T)`
Boolean	`addAll(index: Int, elements: Collection<T>)`
Boolean	`addAll(elements: Collection<T>)`
Unit	`clear()`
Boolean	`contains(element: T)`
Boolean	`containsAll(elements: Collection<T>)`
T	`get(index: Int)`
Int	`indexOf(element: T)`
Boolean	`isEmpty()`
MutableIterator<T>	`iterator()`
Int	`lastIndexOf(element: T)`
MutableListIterator<T>	`listIterator()`
MutableListIterator<T>	`listIterator(index: Int)`
Unit	`prependStateRecord(value: StateRecord)` Add a new state record to the beginning of a list.
Boolean	`remove(element: T)`
Boolean	`removeAll(elements: Collection<T>)`
T	`removeAt(index: Int)`
Unit	`removeRange(fromIndex: Int, toIndex: Int)`
Boolean	`retainAll(elements: Collection<T>)`
T	`set(index: Int, element: T)`
MutableList<T>	`subList(fromIndex: Int, toIndex: Int)`

Inherited functions

From class StateObject

StateRecord?

mergeRecords(previous: StateRecord, current: StateRecord, applied: StateRecord)

Produce a merged state based on the conflicting state changes.

This method must not modify any of the records received and should treat the state records as immutable, even the applied record.

Inherited extension functions

List<PointerInputChange>.anyPointersInBounds(bounds: IntSize)

Utility method that determines if any pointers are currently in bounds.

Collection<ComplicationType>.asWireTypes()

Converts an array of ComplicationType to an array of integers with the corresponding wire types.

Boolean	`List<T>.fastAll(predicate: (T) -> Boolean)` Returns `true` if all elements match the given predicate.
Boolean	`List<T>.fastAny(predicate: (T) -> Boolean)` Returns `true` if at least one element matches the given predicate.
T?	`List<T>.fastFirstOrNull(predicate: (T) -> Boolean)` Returns the first value that predicate returns `true` for or `null` if nothing matches.
Unit	`List<T>.fastForEach(action: (T) -> Unit)` Iterates through a List using the index and calls action for each item.
Unit	`List<T>.fastForEachIndexed(action: (Int, T) -> Unit)` Iterates through a List using the index and calls action for each item.
List<R>	`List<T>.fastMap(transform: (T) -> R)` Returns a list containing the results of applying the given transform function to each element in the original collection.
C	`List<T>.fastMapTo(destination: C, transform: (T) -> R)` Applies the given transform function to each element of the original collection and appends the results to the given destination.
T?	`List<T>.fastMaxBy(selector: (T) -> R)` Returns the first element yielding the largest value of the given function or `null` if there are no elements.
Int	`List<T>.fastSumBy(selector: (T) -> Int)` Returns the sum of all values produced by selector function applied to each element in the list.

Collection<T>.toMutableStateList()

Create an instance of MutableList from a collection that is observerable and can be snapshot.

Iterable<Pair<K,