Scan the fingerprint of a user with the TouchID sensor.
import { TouchID } from '@ionic-native/touch-id';
constructor(private touchId: TouchID) { }
...
this.touchId.isAvailable()
.then(
res => console.log('TouchID is available!'),
err => console.error('TouchID is not available', err)
);
this.touchId.verifyFingerprint('Scan your fingerprint please')
.then(
res => console.log('Ok', res),
err => console.error('Error', err)
);
The plugin will reject for various reasons. Your app will most likely need to respond to the cases differently.
Here is a list of some of the error codes:
-1
- Fingerprint scan failed more than 3 times-2
or -128
- User tapped the 'Cancel' button-3
- User tapped the 'Enter Passcode' or 'Enter Password' button-4
- The scan was cancelled by the system (Home button for example)-6
- TouchID is not Available-8
- TouchID is locked out from too many tries