Added in API level 27

LuhnChecksumValidator


class LuhnChecksumValidator : Parcelable, Validator

Validator that returns true if the number created by concatenating all given fields pass a Luhn algorithm checksum. All non-digits are ignored.

See SaveInfo.Builder.setValidator(Validator) for examples.

Summary

Inherited constants
Int CONTENTS_FILE_DESCRIPTOR

Descriptor bit used with describeContents(): indicates that the Parcelable object's flattened representation includes a file descriptor.

Int PARCELABLE_WRITE_RETURN_VALUE

Flag for use with writeToParcel: the object being written is a return value, that is the result of a function such as "Parcelable someFunction()", "void someFunction(out Parcelable)", or "void someFunction(inout Parcelable)". Some implementations may want to release resources at this point.

Public constructors

Default constructor.

Public methods
Int

String

Unit
writeToParcel(parcel: Parcel, flags: Int)

Public constructors

LuhnChecksumValidator

Added in API level 27
LuhnChecksumValidator(vararg ids: AutofillId!)

Default constructor.

Parameters
ids AutofillId!: id of fields that comprises the number to be checked. This value cannot be null.

Public methods

describeContents

Added in API level 27
fun describeContents(): Int
Return
Int a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either 0 or android.os.Parcelable#CONTENTS_FILE_DESCRIPTOR

toString

Added in API level 27
fun toString(): String
Return
String a string representation of the object.

writeToParcel

Added in API level 27
fun writeToParcel(
    parcel: Parcel,
    flags: Int
): Unit
Parameters
dest The Parcel in which the object should be written. This value cannot be null.
flags Int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE. Value is either 0 or a combination of android.os.Parcelable#PARCELABLE_WRITE_RETURN_VALUE, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES

Properties

CREATOR

Added in API level 27
static val CREATOR: Parcelable.Creator<LuhnChecksumValidator!>