LuhnChecksumValidator

Kotlin |Java

class LuhnChecksumValidator : Parcelable, Validator

kotlin.Any
↳	android.service.autofill.LuhnChecksumValidator

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

From class Parcelable

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
`LuhnChecksumValidator(vararg ids: AutofillId!)` Default constructor.

Public methods
Int	`describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
String	`toString()` Returns a string representation of the object.
Unit	`writeToParcel(parcel: Parcel, flags: Int)` Flatten this object in to a Parcel.

Properties
static Parcelable.Creator<LuhnChecksumValidator!>	`CREATOR`

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

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of writeToParcel(android.os.Parcel,int), the return value of this method must include the CONTENTS_FILE_DESCRIPTOR bit.

Return
`Int`	a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or `CONTENTS_FILE_DESCRIPTOR`

toString

Added in API level 27

fun toString(): String

Returns a string representation of the object.

Return
`String`	a string representation of the object.

writeToParcel

Added in API level 27

fun writeToParcel(
    parcel: Parcel, 
    flags: Int
): Unit

Flatten this object in to a Parcel.

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 the following: `PARCELABLE_WRITE_RETURN_VALUE`

Properties

CREATOR

Added in API level 27

static val CREATOR: Parcelable.Creator<LuhnChecksumValidator!>