SparseArray.KeyAt(Int32) Method

Reference

Definition

Namespace:: Android.Util

Assembly:: Mono.Android.dll

Important

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

[Android.Runtime.Register("keyAt", "(I)I", "GetKeyAt_IHandler")]
public virtual int KeyAt (int index);

[<Android.Runtime.Register("keyAt", "(I)I", "GetKeyAt_IHandler")>]
abstract member KeyAt : int -> int
override this.KeyAt : int -> int

Parameters

index: Int32

Returns

Int32

Attributes: RegisterAttribute

Remarks

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

The keys corresponding to indices in ascending order are guaranteed to be in ascending order, e.g., keyAt(0) will return the smallest key and keyAt(size()-1) will return the largest key.

For indices outside of the range 0...size()-1, the behavior is undefined for apps targeting android.os.Build.VERSION_CODES#P and earlier, and an ArrayIndexOutOfBoundsException is thrown for apps targeting android.os.Build.VERSION_CODES#Q and later.

Java documentation for android.util.SparseArray.keyAt(int).

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.

Applies to

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