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As we can see in react-native-touch-id library documentation (Errors section), errors could come from TouchID.isSupported or TouchID.authenticate methods.
In this lib we have such code:
https://github.com/jarden-digital/react-native-pincode/blob/master/src/PinCodeEnter.tsx
triggerTouchID() {
!!TouchID && TouchID.isSupported()
.then(() => {
setTimeout(() => {
this.launchTouchID()
})
})
.catch((error: any) => {
console.warn('TouchID error', error)
})
}
and
async launchTouchID() {
const optionalConfigObject = {
imageColor: '#e00606',
imageErrorColor: '#ff0000',
sensorDescription: 'Touch sensor',
sensorErrorDescription: 'Failed',
cancelText: this.props.textCancelButtonTouchID || 'Cancel',
fallbackLabel: 'Show Passcode',
unifiedErrors: false,
passcodeFallback: this.props.passcodeFallback
}
try {
await TouchID.authenticate(
this.props.touchIDSentence,
Object.assign({}, optionalConfigObject, {
title: this.props.touchIDTitle
})
).then((success: any) => {
this.endProcess(this.props.storedPin || this.keyChainResult)
})
} catch (e) {
if (!!this.props.callbackErrorTouchId) {
this.props.callbackErrorTouchId(e)
} else {
console.log('TouchID error', e)
}
}
}
So it seems that we can't handle with errors from TouchID.isSupported, because callbackErrorTouchId callback is triggering only if TouchID.authenticate fails.
Could you fix that please?
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