RequiresExtension

@MustBeDocumented
@Retention(value = AnnotationRetention.BINARY)
@Target(allowedTargets = [AnnotationTarget.ANNOTATION_CLASS, AnnotationTarget.CLASS, AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER, AnnotationTarget.PROPERTY_SETTER, AnnotationTarget.CONSTRUCTOR, AnnotationTarget.FIELD, AnnotationTarget.FILE])
@Target(value = [ElementType.TYPE, ElementType.METHOD, ElementType.CONSTRUCTOR, ElementType.FIELD, ElementType.PACKAGE])
@Repeatable
public annotation RequiresExtension

Denotes that the annotated element should only be called if the given extension is at least the given version.

This annotation is repeatable, and if specified multiple times, you are required to have one of (not all of) the specified extension versions.

Example:

@RequiresExtension(extension = Build.VERSION_CODES.R, version = 3)
fun methodUsingApisFromR() { ... }

For the special case of extension == 0, you can instead use the RequiresApi annotation; @RequiresApi(30) is equivalent to @RequiresExtension(extension=0, version=30).

Summary

Public constructors
RequiresExtension(
    @IntRange(from = 1) int extension,
    @IntRange(from = 1) int version
)

Public methods
final int

The extension SDK ID.
final int

The minimum version to require

Public constructors

RequiresExtension

public RequiresExtension(
    @IntRange(from = 1) int extension,
    @IntRange(from = 1) int version
)

Public methods

getExtension

public final int getExtension()

The extension SDK ID. This corresponds to the extension id's allowed by android.os.ext.SdkExtensions.getExtensionVersion, and for id values less than 1_000_000 is one of the android.os.Build.VERSION_CODES.

getVersion

public final int getVersion()

The minimum version to require