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Summary: Inherited Constants | Fields | Ctors | Methods | Inherited Methods

# SigningInfo

`public final class SigningInfo`
`extends Object` `implements Parcelable`

java.lang.Object
↳ | android.content.pm.SigningInfo

Information pertaining to the signing certificates used to sign a package.

## Summary

### Inherited constants
From interface `android.os.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(Parcel, int)`: 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)`".

### Fields
`public static final Creator<SigningInfo>` | `CREATOR`

### Public constructors
`SigningInfo()`
`SigningInfo(SigningInfo orig)`

### Public methods
`int` | `describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`Signature[]` | `getApkContentsSigners()` Returns the signing certificates used to sign the APK contents of this application.
`Signature[]` | `getSigningCertificateHistory()` Returns the signing certificates this package has proven it is authorized to use.
`boolean` | `hasMultipleSigners()` Although relatively uncommon, packages may be signed by more than one signer, in which case their identity is viewed as being the set of all signers, not just any one.
`boolean` | `hasPastSigningCertificates()` APK Signature Scheme v3 enables packages to provide a proof-of-rotation record that the platform verifies, and uses, to allow the use of new signing certificates.
`void` | `writeToParcel(Parcel dest, int parcelableFlags)` Flatten this object in to a Parcel.

### Inherited methods
From class `java.lang.Object`
`Object` | `clone()` Creates and returns a copy of this object.
`boolean` | `equals(Object obj)` Indicates whether some other object is "equal to" this one.
`void` | `finalize()` Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
`final Class<?>` | `getClass()` Returns the runtime class of this `Object`.
`int` | `hashCode()` Returns a hash code value for the object.
`final void` | `notify()` Wakes up a single thread that is waiting on this object's monitor.
`final void` | `notifyAll()` Wakes up all threads that are waiting on this object's monitor.
`String` | `toString()` Returns a string representation of the object.
`final void` | `wait(long timeout, int nanos)` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
`final void` | `wait(long timeout)` Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.
`final void` | `wait()` Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
From interface `android.os.Parcelable`
`abstract int` | `describeContents()` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
`abstract void` | `writeToParcel(Parcel dest, int flags)` Flatten this object in to a Parcel.

## Fields

### CREATOR

    public static final Creator<SigningInfo> CREATOR

## Public constructors

### SigningInfo

    public SigningInfo ()

### SigningInfo

    public SigningInfo (SigningInfo orig)

Parameters
`orig` | `SigningInfo`

## Public methods

### describeContents

    public int describeContents ()

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.

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

### getApkContentsSigners

    public Signature[] getApkContentsSigners ()

Returns the signing certificates used to sign the APK contents of this application. Not including any past signing certificates the package proved it is authorized to use. This method should not be used unless `hasMultipleSigners()` returns true, indicating that `getSigningCertificateHistory()` cannot be used, otherwise `getSigningCertificateHistory()` should be preferred.

Returns
`Signature[]` |

### getSigningCertificateHistory

    public Signature[] getSigningCertificateHistory ()

Returns the signing certificates this package has proven it is authorized to use. This includes both the signing certificate associated with the signer of the package and the past signing certificates it included as its proof of signing certificate rotation. This method is the preferred replacement for the `GET_SIGNATURES` flag used with `PackageManager.getPackageInfo(java.lang.String, int)`. When determining if a package is signed by a desired certificate, the returned array should be checked to determine if it is one of the entries. This method returns null if the package is signed by multiple signing certificates, as opposed to being signed by one current signer and also providing the history of past signing certificates. `hasMultipleSigners()` may be used to determine if this package is signed by multiple signers. Packages which are signed by multiple signers cannot change their signing certificates and their `Signature` array should be checked to make sure that every entry matches the looked-for signing certificates.

Returns
`Signature[]` |

### hasMultipleSigners

    public boolean hasMultipleSigners ()

Although relatively uncommon, packages may be signed by more than one signer, in which case their identity is viewed as being the set of all signers, not just any one.

Returns
`boolean` |

### hasPastSigningCertificates

    public boolean hasPastSigningCertificates ()

APK Signature Scheme v3 enables packages to provide a proof-of-rotation record that the platform verifies, and uses, to allow the use of new signing certificates. This is only available to packages that are not signed by multiple signers. In the event of a change to a new signing certificate, the package's past signing certificates are presented as well. Any check of a package's signing certificate should also include a search through its entire signing history, since it could change to a new signing certificate at any time.

Returns
`boolean` |

### writeToParcel

    public 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.PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of `Parcelable.PARCELABLE_WRITE_RETURN_VALUE`, and android.os.Parcelable.PARCELABLE_ELIDE_DUPLICATES

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