SparseArray<E> Class

Definition

Namespace:: Android.Util

Assembly:: Mono.Android.dll

Important

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SparseArrays map integers to Objects.

[Android.Runtime.Register("android/util/SparseArray", DoNotGenerateAcw=true)]
public class SparseArray<E> : Android.Util.SparseArray

[<Android.Runtime.Register("android/util/SparseArray", DoNotGenerateAcw=true)>]
type SparseArray<'E> = class
    inherit SparseArray

Type Parameters

E

Inheritance: Object

Object

SparseArray
SparseArray<E>

Attributes: RegisterAttribute

Remarks

Android platform documentation

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

Name	Description
SparseArray<E>()
SparseArray<E>(Int32)

Properties

Name	Description
Class	Returns the runtime class of this `Object`. (Inherited from Object)
Handle	The handle to the underlying Android instance. (Inherited from Object)
JniIdentityHashCode	Gets the identity hash code assigned to this Java peer by the interop runtime. (Inherited from Object)
JniPeerMembers	(Inherited from SparseArray)
PeerReference	Gets the JNI object reference for this Java peer. (Inherited from Object)
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from SparseArray)
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code. (Inherited from SparseArray)

Methods

Name	Description
Append(Int32, E)
Append(Int32, Object)	Puts a key/value pair into the array, optimizing for the case where the key is greater than all existing keys in the array. (Inherited from SparseArray)
Clear()	Removes all key-value mappings from this SparseArray. (Inherited from SparseArray)
Clone()	Creates and returns a copy of this `Object`. (Inherited from SparseArray)
Contains(Int32)	Returns true if the key exists in the array. (Inherited from SparseArray)
ContentEquals(SparseArray)	Compares the contents of this `SparseArray` to the specified `SparseArray`. (Inherited from SparseArray)
ContentHashCode()	Returns a hash code value for the contents of this `SparseArray`, combining the `Objects#hashCode(Object)` result of all its keys and values. (Inherited from SparseArray)
Delete(Int32)	Removes the mapping from the specified key, if there was any. (Inherited from SparseArray)
Dispose()	Releases the resources held by this Java peer. (Inherited from Object)
Dispose(Boolean)	Releases the resources held by this Java peer. (Inherited from Object)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
Get(Int32, E)
Get(Int32, Object)	Gets the Object mapped from the specified key, or the specified Object if no such mapping has been made. (Inherited from SparseArray)
Get(Int32)	Gets the Object mapped from the specified key, or `null` if no such mapping has been made.
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
IndexOfKey(Int32)	Returns the index for which `#keyAt` would return the specified key, or a negative number if the specified key is not mapped. (Inherited from SparseArray)
IndexOfValue(E)
IndexOfValue(Object)	Returns an index for which `#valueAt` would return the specified value, or a negative number if no keys map to the specified value. (Inherited from SparseArray)
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
KeyAt(Int32)	Given an index in the range `0...size()-1`, returns the key from the `index`th key-value mapping that this SparseArray stores. (Inherited from SparseArray)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
Put(Int32, E)
Put(Int32, Object)	Adds a mapping from the specified key to the specified value, replacing the previous mapping from the specified key if there was one. (Inherited from SparseArray)
Remove(Int32)	Alias for `#delete(int)`. (Inherited from SparseArray)
RemoveAt(Int32)	Removes the mapping at the specified index. (Inherited from SparseArray)
RemoveAtRange(Int32, Int32)	Remove a range of mappings as a batch. (Inherited from SparseArray)
Set(Int32, Object)	Alias for `#put(int, Object)` to support Kotlin [index]= operator. (Inherited from SparseArray)
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
SetValueAt(Int32, E)
SetValueAt(Int32, Object)	Given an index in the range `0...size()-1`, sets a new value for the `index`th key-value mapping that this SparseArray stores. (Inherited from SparseArray)
Size()	Returns the number of key-value mappings that this SparseArray currently stores. (Inherited from SparseArray)
ToArray<T>()	Creates a managed array from this Java array wrapper. (Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	Unregisters this Java peer from the interop runtime. (Inherited from Object)
ValueAt(Int32)	Given an index in the range `0...size()-1`, returns the value from the `index`th key-value mapping that this SparseArray stores.
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)

Explicit Interface Implementations

Name	Description
IJavaPeerable.Disposed()	Notifies the interop runtime that this managed peer has been disposed. (Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	Releases this Java peer unless it is retained by another managed reference. (Inherited from Object)
IJavaPeerable.Finalized()	Notifies the interop runtime that this managed peer has been finalized. (Inherited from Object)
IJavaPeerable.JniManagedPeerState	Gets the state that describes the relationship between this managed peer and its JNI reference. (Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	Sets the interop identity hash code for this Java peer. (Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	Sets the managed and JNI peer state for this Java peer. (Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	Sets the JNI object reference used by this managed peer. (Inherited from Object)

Extension Methods

Name	Description
GetJniTypeName(IJavaPeerable)	Gets the JNI name of the type of the instance `self`.
JavaAs<TResult>(IJavaPeerable)	Try to coerce `self` to type `TResult`, checking that the coercion is valid on the Java side.
JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
TryJavaCast<TResult>(IJavaPeerable, TResult)	Try to coerce `self` to type `TResult`, checking that the coercion is valid on the Java side.

Applies to