ObservableMap

public interface ObservableMap
implements Map<K, V>

android.databinding.ObservableMap<K, V>

Known Indirect Subclasses

A Map that notifies when items change. This kind of Map may be data bound and have the UI update as the map changes.

Implementers must call onMapChanged(ObservableMap, Object) whenever an item is added, changed, or removed.

ObservableArrayMap is a convenient implementation of ObservableMap. MapChangeRegistry may help other implementations manage the callbacks.

See also:

Summary

Nested classes
`class`	`ObservableMap.OnMapChangedCallback<T extends ObservableMap<K, V>, K, V>` A callback receiving notifications when an ObservableMap changes.

Public methods
`abstract void`	`addOnMapChangedCallback(OnMapChangedCallback<? extends ObservableMap<K, V>, K, V> callback)` Adds a callback to listen for changes to the ObservableMap.
`abstract void`	`removeOnMapChangedCallback(OnMapChangedCallback<? extends ObservableMap<K, V>, K, V> callback)` Removes a previously added callback.

Inherited methods
From interface `java.util.Map` `abstract void` `clear()` `default V` `compute(K arg0, BiFunction<? super K, ? super V, ? extends V> arg1)` `default V` `computeIfAbsent(K arg0, Function<? super K, ? extends V> arg1)` `default V` `computeIfPresent(K arg0, BiFunction<? super K, ? super V, ? extends V> arg1)` `abstract boolean` `containsKey(Object arg0)` `abstract boolean` `containsValue(Object arg0)` `abstract Set<Entry<K, V>>` `entrySet()` `abstract boolean` `equals(Object arg0)` `default void` `forEach(BiConsumer<? super K, ? super V> arg0)` `abstract V` `get(Object arg0)` `default V` `getOrDefault(Object arg0, V arg1)` `abstract int` `hashCode()` `abstract boolean` `isEmpty()` `abstract Set<K>` `keySet()` `default V` `merge(K arg0, V arg1, BiFunction<? super V, ? super V, ? extends V> arg2)` `abstract V` `put(K arg0, V arg1)` `abstract void` `putAll(Map<? extends K, ? extends V> arg0)` `default V` `putIfAbsent(K arg0, V arg1)` `default boolean` `remove(Object arg0, Object arg1)` `abstract V` `remove(Object arg0)` `default boolean` `replace(K arg0, V arg1, V arg2)` `default V` `replace(K arg0, V arg1)` `default void` `replaceAll(BiFunction<? super K, ? super V, ? extends V> arg0)` `abstract int` `size()` `abstract Collection<V>` `values()`

From interface


 
 java.util.Map


 abstract
 
 
 
 
 void


 clear()


 
 default
 
 
 
 V


 compute(K arg0, BiFunction<? super K, ? super V, ? extends V> arg1)


 
 default
 
 
 
 V


 computeIfAbsent(K arg0, Function<? super K, ? extends V> arg1)


 
 default
 
 
 
 V


 computeIfPresent(K arg0, BiFunction<? super K, ? super V, ? extends V> arg1)


 abstract
 
 
 
 
 boolean


 containsKey(Object arg0)


 abstract
 
 
 
 
 boolean


 containsValue(Object arg0)


 abstract
 
 
 
 
 Set<Entry<K, V>>


 entrySet()


 abstract
 
 
 
 
 boolean


 equals(Object arg0)


 
 default
 
 
 
 void


 forEach(BiConsumer<? super K, ? super V> arg0)


 abstract
 
 
 
 
 V


 get(Object arg0)


 
 default
 
 
 
 V


 getOrDefault(Object arg0, V arg1)


 abstract
 
 
 
 
 int


 hashCode()


 abstract
 
 
 
 
 boolean


 isEmpty()


 abstract
 
 
 
 
 Set<K>


 keySet()


 
 default
 
 
 
 V


 merge(K arg0, V arg1, BiFunction<? super V, ? super V, ? extends V> arg2)


 abstract
 
 
 
 
 V


 put(K arg0, V arg1)


 abstract
 
 
 
 
 void


 putAll(Map<? extends K, ? extends V> arg0)


 
 default
 
 
 
 V


 putIfAbsent(K arg0, V arg1)


 
 default
 
 
 
 boolean


 remove(Object arg0, Object arg1)


 abstract
 
 
 
 
 V


 remove(Object arg0)


 
 default
 
 
 
 boolean


 replace(K arg0, V arg1, V arg2)


 
 default
 
 
 
 V


 replace(K arg0, V arg1)


 
 default
 
 
 
 void


 replaceAll(BiFunction<? super K, ? super V, ? extends V> arg0)


 abstract
 
 
 
 
 int


 size()


 abstract
 
 
 
 
 Collection<V>


 values()

void addOnMapChangedCallback (OnMapChangedCallback<? extends ObservableMap<K, V>, K, V> callback)

Adds a callback to listen for changes to the ObservableMap.

Parameters
`callback`	`OnMapChangedCallback`: The callback to start listening for events.

void removeOnMapChangedCallback (OnMapChangedCallback<? extends ObservableMap<K, V>, K, V> callback)

Removes a previously added callback.

Parameters
`callback`	`OnMapChangedCallback`: The callback that no longer needs to be notified of map changes.