TouchID


Purpose

Represents an object that enables support for user credentials secured by the TouchId mechanism. This functionality is available on selected iOS devices.

Note

The TouchID functionality is active once it has been activated in the device's system settings. Check your system settings and make sure that both Passcode and TouchID functions are active.

You can access the object by using the launchbox.TouchID reference.

Module

This object belongs to the Touch ID product module.

Constants

The table below lists all constant values of the TouchID object, used as failure codes in the onError methods in this API.

Name Description
PMTouchIdErrorPasscodeNotSet Denotes that a passcode has not been set.
PMTouchIdErrorInvalidCredentials Denotes that invalid credentials have been provided..
PMTouchIdErrorKeychain Denotes that the keychain is invalid.
PMTouchIdErrorEmptyKeychain Denotes that the keychain is empty.
PMTouchIdErrorInvalidFingerprint Denotes that an error has occurred during fingerprint verification.
PMTouchIdErrorItemExist Denotes that an item already exists.
PMTouchIdErrorCanceledByUser Denotes that an action has been canceled by the user.

Methods

Name Description Return type
checkAvailability

Checks whether the TouchId functionality is available and the passcode is set.

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saveCredentials

Saves credentials in the keychain. Does not require authentication.

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getCredentials

Obtains credentials from a TouchID-secured keychain. Can be used to capture a fingerprint.

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deleteCredentials

Deletes credentials from a TouchID-secured keychain. Does not require authentication.

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Related topics

Public API reference
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