SparseArray SparseArray Class

Definition

SparseArrays map integers to Objects.

[Android.Runtime.Register("android/util/SparseArray", ApiSince=1, DoNotGenerateAcw=true)]
[Java.Interop.JavaTypeParameters(new System.String[] { "E" })]
public class SparseArray : Java.Lang.Object, IDisposable, Java.Lang.ICloneable
type SparseArray = class
    inherit Object
    interface ICloneable
    interface IJavaObject
    interface IDisposable
Inheritance
SparseArraySparseArray
Derived
Attributes
Implements

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

SparseArray() SparseArray()

Creates a new SparseArray containing no mappings.

SparseArray(Int32) SparseArray(Int32)

Creates a new SparseArray containing no mappings that will not require any additional memory allocation to store the specified number of mappings.

SparseArray(IntPtr, JniHandleOwnership) SparseArray(IntPtr, JniHandleOwnership)

A constructor used when creating managed representations of JNI objects; called by the runtime.

Properties

Class Class

Returns the unique instance of Class that represents this object's class.

(Inherited from Object)
Handle Handle

The handle to the underlying Android instance.

(Inherited from Object)
IJavaObjectEx.IsProxy IJavaObjectEx.IsProxy Inherited from Object
IJavaObjectEx.KeyHandle IJavaObjectEx.KeyHandle Inherited from Object
IJavaObjectEx.NeedsActivation IJavaObjectEx.NeedsActivation Inherited from Object
IJavaPeerable.JniManagedPeerState IJavaPeerable.JniManagedPeerState Inherited from Object
JniIdentityHashCode JniIdentityHashCode Inherited from Object
JniPeerMembers JniPeerMembers
PeerReference PeerReference Inherited from Object
ThresholdClass ThresholdClass

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

ThresholdType ThresholdType

This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Methods

Append(Int32, Object) Append(Int32, Object)
Clear() Clear()

Removes all key-value mappings from this SparseArray.

Clone() Clone()

Creates and returns a copy of this Object.

Delete(Int32) Delete(Int32)

Removes the mapping from the specified key, if there was any.

Dispose() Dispose() Inherited from Object
Dispose(Boolean) Dispose(Boolean) Inherited from Object
Equals(Object) Equals(Object)

Compares this instance with the specified object and indicates if they are equal.

(Inherited from Object)
Get(Int32) Get(Int32)

Gets the Object mapped from the specified key, or null if no such mapping has been made.

Get(Int32, Object) Get(Int32, Object)
GetHashCode() GetHashCode()

Returns an integer hash code for this object.

(Inherited from Object)
IndexOfKey(Int32) IndexOfKey(Int32)

Android.Util.SparseArray`1.keyAt(int)

IndexOfValue(Object) IndexOfValue(Object)
JavaFinalize() JavaFinalize()

Invoked when the garbage collector has detected that this instance is no longer reachable.

(Inherited from Object)
KeyAt(Int32) KeyAt(Int32)

Given an index in the range 0...size()-1, returns the key from the indexth key-value mapping that this SparseArray stores.

Notify() Notify()

Causes a thread which is waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.

(Inherited from Object)
NotifyAll() NotifyAll()

Causes all threads which are waiting on this object's monitor (by means of calling one of the wait() methods) to be woken up.

(Inherited from Object)
Put(Int32, Object) Put(Int32, Object)
Remove(Int32) Remove(Int32)

Android.Util.SparseArray`1.delete(int)

RemoveAt(Int32) RemoveAt(Int32)

Removes the mapping at the specified index.

RemoveAtRange(Int32, Int32) RemoveAtRange(Int32, Int32)

Remove a range of mappings as a batch.

SetHandle(IntPtr, JniHandleOwnership) SetHandle(IntPtr, JniHandleOwnership)

Sets the Handle property.

(Inherited from Object)
SetValueAt(Int32, Object) SetValueAt(Int32, Object)
Size() Size()

Returns the number of key-value mappings that this SparseArray currently stores.

ToArray<T>() ToArray<T>() Inherited from Object
ToString() ToString()

Returns a string containing a concise, human-readable description of this object.

(Inherited from Object)
UnregisterFromRuntime() UnregisterFromRuntime() Inherited from Object
ValueAt(Int32) ValueAt(Int32)

Given an index in the range 0...size()-1, returns the value from the indexth key-value mapping that this SparseArray stores.

Wait() Wait()

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object.

(Inherited from Object)
Wait(Int64) Wait(Int64)

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.

(Inherited from Object)
Wait(Int64, Int32) Wait(Int64, Int32)

Causes the calling thread to wait until another thread calls the notify() or notifyAll() method of this object or until the specified timeout expires.

(Inherited from Object)

Explicit Interface Implementations

IJavaObjectEx.ToLocalJniHandle() IJavaObjectEx.ToLocalJniHandle() Inherited from Object
IJavaPeerable.Disposed() IJavaPeerable.Disposed() Inherited from Object
IJavaPeerable.DisposeUnlessReferenced() IJavaPeerable.DisposeUnlessReferenced() Inherited from Object
IJavaPeerable.Finalized() IJavaPeerable.Finalized() Inherited from Object
IJavaPeerable.SetJniIdentityHashCode(Int32) IJavaPeerable.SetJniIdentityHashCode(Int32) Inherited from Object
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates) Inherited from Object
IJavaPeerable.SetPeerReference(JniObjectReference) IJavaPeerable.SetPeerReference(JniObjectReference) Inherited from Object

Extension Methods

JavaCast<TResult>(IJavaObject) JavaCast<TResult>(IJavaObject)

Performs an Android runtime-checked type conversion.

JavaCast<TResult>(IJavaObject) JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable) GetJniTypeName(IJavaPeerable)

Applies to