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ObservableList

public interface ObservableList
implements List<T>

android.databinding.ObservableList<T>

Known Indirect Subclasses

ObservableArrayList<T>

A List that notifies when changes are made. An ObservableList bound to the UI will keep the it up-to-date when changes occur.

The ObservableList must notify its callbacks whenever a change to the list occurs, using ObservableList.OnListChangedCallback.

ObservableArrayList implements ObservableList with an underlying ArrayList. ListChangeRegistry can help in maintaining the callbacks of other implementations.

See also:

Observable
ObservableMap

Summary

Nested classes
`class`	`ObservableList.OnListChangedCallback<T extends ObservableList>` The callback that is called by ObservableList when the list has changed.

Public methods
`abstract void`	`addOnListChangedCallback(OnListChangedCallback<? extends ObservableList<T>> callback)` Adds a callback to be notified when changes to the list occur.
`abstract void`	`removeOnListChangedCallback(OnListChangedCallback<? extends ObservableList<T>> callback)` Removes a callback previously added.

Inherited methods

From interface


  
    java.util.List

`abstract boolean`	`add(T e)` Appends the specified element to the end of this list (optional operation).
`abstract void`	`add(int index, T element)` Inserts the specified element at the specified position in this list (optional operation).
`abstract boolean`	`addAll(Collection<? extends E> c)` Appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator (optional operation).
`abstract boolean`	`addAll(int index, Collection<? extends E> c)` Inserts all of the elements in the specified collection into this list at the specified position (optional operation).
`abstract void`	`clear()` Removes all of the elements from this list (optional operation).
`abstract boolean`	`contains(Object o)` Returns `true` if this list contains the specified element.
`abstract boolean`	`containsAll(Collection<?> c)` Returns `true` if this list contains all of the elements of the specified collection.
`abstract boolean`	`equals(Object o)` Compares the specified object with this list for equality.
`abstract T`	`get(int index)` Returns the element at the specified position in this list.
`abstract int`	`hashCode()` Returns the hash code value for this list.
`abstract int`	`indexOf(Object o)` Returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element.
`abstract boolean`	`isEmpty()` Returns `true` if this list contains no elements.
`abstract Iterator<T>`	`iterator()` Returns an iterator over the elements in this list in proper sequence.
`abstract int`	`lastIndexOf(Object o)` Returns the index of the last occurrence of the specified element in this list, or -1 if this list does not contain the element.
`abstract ListIterator<T>`	`listIterator(int index)` Returns a list iterator over the elements in this list (in proper sequence), starting at the specified position in the list.
`abstract ListIterator<T>`	`listIterator()` Returns a list iterator over the elements in this list (in proper sequence).
`abstract T`	`remove(int index)` Removes the element at the specified position in this list (optional operation).
`abstract boolean`	`remove(Object o)` Removes the first occurrence of the specified element from this list, if it is present (optional operation).
`abstract boolean`	`removeAll(Collection<?> c)` Removes from this list all of its elements that are contained in the specified collection (optional operation).
`default void`	`replaceAll(UnaryOperator<T> operator)` Replaces each element of this list with the result of applying the operator to that element.
`abstract boolean`	`retainAll(Collection<?> c)` Retains only the elements in this list that are contained in the specified collection (optional operation).
`abstract T`	`set(int index, T element)` Replaces the element at the specified position in this list with the specified element (optional operation).
`abstract int`	`size()` Returns the number of elements in this list.
`default void`	`sort(Comparator<? super E> c)` Sorts this list according to the order induced by the specified `Comparator`.
`default Spliterator<T>`	`spliterator()` Creates a `Spliterator` over the elements in this list.
`abstract List<T>`	`subList(int fromIndex, int toIndex)` Returns a view of the portion of this list between the specified `fromIndex`, inclusive, and `toIndex`, exclusive.
`abstract Object[]`	`toArray()` Returns an array containing all of the elements in this list in proper sequence (from first to last element).
`abstract <T> T[]`	`toArray(T[] a)` Returns an array containing all of the elements in this list in proper sequence (from first to last element); the runtime type of the returned array is that of the specified array.

From interface


  
    java.util.Collection

`abstract boolean`	`add(T e)` Ensures that this collection contains the specified element (optional operation).
`abstract boolean`	`addAll(Collection<? extends E> c)` Adds all of the elements in the specified collection to this collection (optional operation).
`abstract void`	`clear()` Removes all of the elements from this collection (optional operation).
`abstract boolean`	`contains(Object o)` Returns `true` if this collection contains the specified element.
`abstract boolean`	`containsAll(Collection<?> c)` Returns `true` if this collection contains all of the elements in the specified collection.
`abstract boolean`	`equals(Object o)` Compares the specified object with this collection for equality.
`abstract int`	`hashCode()` Returns the hash code value for this collection.
`abstract boolean`	`isEmpty()` Returns `true` if this collection contains no elements.
`abstract Iterator<T>`	`iterator()` Returns an iterator over the elements in this collection.
`default Stream<T>`	`parallelStream()` Returns a possibly parallel `Stream` with this collection as its source.
`abstract boolean`	`remove(Object o)` Removes a single instance of the specified element from this collection, if it is present (optional operation).
`abstract boolean`	`removeAll(Collection<?> c)` Removes all of this collection's elements that are also contained in the specified collection (optional operation).
`default boolean`	`removeIf(Predicate<? super E> filter)` Removes all of the elements of this collection that satisfy the given predicate.
`abstract boolean`	`retainAll(Collection<?> c)` Retains only the elements in this collection that are contained in the specified collection (optional operation).
`abstract int`	`size()` Returns the number of elements in this collection.
`default Spliterator<T>`	`spliterator()` Creates a `Spliterator` over the elements in this collection.
`default Stream<T>`	`stream()` Returns a sequential `Stream` with this collection as its source.
`abstract <T> T[]`	`toArray(T[] a)` Returns an array containing all of the elements in this collection; the runtime type of the returned array is that of the specified array.
`abstract Object[]`	`toArray()` Returns an array containing all of the elements in this collection.

From interface


  
    java.lang.Iterable

Public methods

addOnListChangedCallback

void addOnListChangedCallback (OnListChangedCallback<? extends ObservableList<T>> callback)

Adds a callback to be notified when changes to the list occur.

Parameters
`callback`	`OnListChangedCallback`: The callback to be notified on list changes

removeOnListChangedCallback

void removeOnListChangedCallback (OnListChangedCallback<? extends ObservableList<T>> callback)

Removes a callback previously added.

Parameters
`callback`	`OnListChangedCallback`: The callback to remove.

Feb	MAR	Apr
	27
2016	2017	2018

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addOnListChangedCallback

removeOnListChangedCallback

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