public class

Signature

extends Object
implements Parcelable
java.lang.Object
   ↳ android.content.pm.Signature

Class Overview

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

Summary

Constants
Creator<Signature> CREATOR
[Expand]
Inherited Constants
From interface android.os.Parcelable
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.
[Expand]
Inherited Methods
From class java.lang.Object
From interface android.os.Parcelable

Constants

public static final Creator<Signature> CREATOR

Public Constructors

public Signature (byte[] signature)

Create Signature from an existing raw byte array.

public Signature (String text)

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

Public Methods

public int describeContents ()

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

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

public 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 both transitive and reflexive.

The implementation in Object returns true only if o is the exact same object as the receiver (using the == operator for comparison). Subclasses often implement equals(Object) so that it takes into account the two object's types and states.

The general contract for the equals(Object) 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 none of them.

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

public 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.

Returns
  • this object's hash code.

public byte[] toByteArray ()

Returns
  • the contents of this signature as a byte array.

public char[] toChars (char[] existingArray, int[] outLen)

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

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

public char[] toChars ()

Encode the Signature as ASCII text.

public String toCharsString ()

Return the result of toChars() as a String. This result is cached so future calls will return the same String.

public void writeToParcel (Parcel dest, int parcelableFlags)

Flatten this object in to a Parcel.

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