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Added in API level 1

Signature

public class Signature
extends Object implements Parcelable

java.lang.Object
   ↳ android.content.pm.Signature


Opaque, immutable representation of a signing certificate associated with an application package.

This class name is slightly misleading, since it's not actually a signature.

Summary

Inherited constants

From interface android.os.Parcelable

Fields

public static final Creator<Signature> CREATOR

Public constructors

Signature(byte[] signature)

Create Signature from an existing raw byte array.

Signature(String text)

Create Signature from a text representation previously returned by toChars() or toCharsString().

Public methods

int describeContents()

Describe the kinds of special objects contained in this Parcelable's marshalled representation.

boolean equals(Object obj)

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

int hashCode()

Returns an integer hash code for this object.

byte[] toByteArray()
char[] toChars(char[] existingArray, int[] outLen)

Encode the Signature as ASCII text in to an existing array.

char[] toChars()

Encode the Signature as ASCII text.

String toCharsString()

Return the result of toChars() as a String.

void writeToParcel(Parcel dest, int parcelableFlags)

Flatten this object in to a Parcel.

Inherited methods

From class java.lang.Object
From interface android.os.Parcelable

Fields

CREATOR

Added in API level 1
Creator<Signature> CREATOR

Public constructors

Signature

Added in API level 1
Signature (byte[] signature)

Create Signature from an existing raw byte array.

Parameters
signature byte

Signature

Added in API level 1
Signature (String text)

Create Signature from a text representation previously returned by toChars() or toCharsString(). Signatures are expected to be a hex-encoded ASCII string.

Parameters
text String: hex-encoded string representing the signature
Throws
IllegalArgumentException when signature is odd-length

Public methods

describeContents

Added in API level 1
int describeContents ()

Describe the kinds of special objects contained in this Parcelable's marshalled representation.

Returns
int a bitmask indicating the set of special object types marshalled by the Parcelable.

equals

Added in API level 1
boolean equals (Object obj)

Compares this instance with the specified object and indicates if they are equal. In order to be equal, o must represent the same object as this instance using a class-specific comparison. The general contract is that this comparison should be reflexive, symmetric, and transitive. Also, no object reference other than null is equal to null.

The default implementation returns true only if this == o. See Writing a correct equals method if you intend implementing your own equals method.

The general contract for the equals and hashCode() methods is that if equals returns true for any two objects, then hashCode() must return the same value for these objects. This means that subclasses of Object usually override either both methods or neither of them.

Parameters
obj Object: the object to compare this instance with.
Returns
boolean true if the specified object is equal to this Object; false otherwise.

hashCode

Added in API level 1
int hashCode ()

Returns an integer hash code for this object. By contract, any two objects for which equals(Object) returns true must return the same hash code value. This means that subclasses of Object usually override both methods or neither method.

Note that hash values must not change over time unless information used in equals comparisons also changes.

See Writing a correct hashCode method if you intend implementing your own hashCode method.

Returns
int this object's hash code.

toByteArray

Added in API level 1
byte[] toByteArray ()

Returns
byte[] the contents of this signature as a byte array.

toChars

Added in API level 1
char[] toChars (char[] existingArray, 
                int[] outLen)

Encode the Signature as ASCII text in to an existing array.

Parameters
existingArray char: Existing char array or null.
outLen int: Output parameter for the number of characters written in to the array.
Returns
char[] Returns either existingArray if it was large enough to hold the ASCII representation, or a newly created char[] array if needed.

toChars

Added in API level 1
char[] toChars ()

Encode the Signature as ASCII text.

Returns
char[]

toCharsString

Added in API level 1
String toCharsString ()

Return the result of toChars() as a String.

Returns
String

writeToParcel

Added in API level 1
void writeToParcel (Parcel dest, 
                int parcelableFlags)

Flatten this object in to a Parcel.

Parameters
dest Parcel: The Parcel in which the object should be written.
parcelableFlags int: Additional flags about how the object should be written. May be 0 or PARCELABLE_WRITE_RETURN_VALUE.
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