Use device password/pin for app to unlock screen

[enviro500]

Hi I have searched the community for a while but couldn't find an answer. Basically instead of the user creating another password specifically for MIT app, is there any extension or way that can make use of the phone's current set password or pin (basically whatever is used to unlock the phone)

[nico]

This is possible on Kodular but I don't think it is possible to do it on AI2

Nico

[techxsarthak]

I can make an extension for that

[Taifun]

Whaf about using the Fingerprint Sensor extension?

FingerprintSensor Extension

DISCLAIMER: This extension wasn't created nor is it endorsed by App Inventor or MIT. This extension was created by me @Ken for the users of App Inventor and it's distributions to use free of charge. This Extension will allow you to use Fingerprint Authentication in your app. It requires Android OS 6.0 API23 or newer to run and of course a device with a Fingerprint Sensor. Note: Currently this extension is not able to run in the Companion so you'll need to build a .apk to use it. Special T…

Taifun

[TIMAI2]

Show a biometric authentication dialog  |  Identity  | ...

The race is on

[ShanmugaNathan2023]

See below link,
I have done it using just Activity Starter,

FingerprintSensor Extension

[Screenshot_20240610-114035] I don't use this extension, Instead i use keyguard with activity starter, I don't know anything like this possible in iOS?

[TIMAI2]

@ShanmugaNathan2023

Brilliant, tested on Android 14 with companion, works well.

Only issue for the OP is if a user has not set a PIN on their device, no security on the app.

[techxsarthak]

@TIMAI2

Only issue for the OP is if a user has not set a PIN on their device, no security on the app

@TIMAI2 I made a free extension to check if a user has setup a passcode lock on his device. This will solve the issue I have posted it and its awaiting approval

[techxsarthak]

Then we can use that extension along with the intent to set up passcode lock and authentication

[techxsarthak]

So the final Solution for the problem
Auth Extension

[FREE] Auth Extension- Check if Passcode lock is enabled on a device

@TIMAI2 But this extension solves that passcode lock issue, right?

Import the extension in your app and add blocks
When Screen1.Initialize:
If call Auth1.IsPasscodeLockEnabled = "true"
then android intent by @ShanmugaNathan2023
Else:
// Whatever you wish to do
Hope it solves your problem
Regards
Sarthak Gupta

[Lito]

@TIMAI2

Only issue for the OP is if a user has not set a PIN on their device, no security on the app.

This is not the only problem ... ^^

@>-->---

[TIMAI2]

@techxsarthak

So the final Solution for the problem

It is a start...

@Lito

This is not the only problem

Perhaps you could expand on this statement, with other issues that arise ...

[techxsarthak]

What are the other issues? Can you please elaborate so that I can incorporate them

[techxsarthak]

[FREE] Auth Extension- Check if Passcode lock is enabled on a device

[image] Spent a while creating this code snippet. So what it does When button is clicked it checks if the device has a passcode lock

If passcode is enabled

The app asks for the device credentials. Now the most important question, what happens if the user clicks the back button or the recent apps button. The activity fails and the activity is called again. kind of like a loop. So the user won't be able to login until the password is entered. When the password is entered correctly the blo…

[techxsarthak]

Hope its solved now

[FREE] Auth Extension- Check if Passcode lock is enabled on a device

[image] Spent a while creating this code snippet. So what it does When button is clicked it checks if the device has a passcode lock

If passcode is enabled

The app asks for the device credentials. Now the most important question, what happens if the user clicks the back button or the recent apps button. The activity fails and the activity is called again. kind of like a loop. So the user won't be able to login until the password is entered. When the password is entered correctly the blo…

[enviro500]

Thanks yall but currently im very busy ill get back when i test all of these

[TIMAI2]

A bit of a sledgehammer to crack a nut, in order to cover all eventualities, and given there is little, if no, feedback from the various activities called. Anyway, see below my effort on authenticating an app using the device PIN (or pattern, or password, or fingerprint) Tested using the latest companion, 2.72u, on Android 6.01 (didn't show lock screen alerts), 12, and 14 (all google devices)

Credits @techxsarthak for the isLockEnabled extension which makes this a potentially useful solution. The whole thing could be much better in a full extension, probably using BiometricManager and Keyguard (Android < 10).

EnterAppWithDevicePIN.aia (9.1 KB)

[Lito]

@TIMAI2

Perhaps you could expand on this statement, with other issues that arise ...

In the Solution you came to a way to cover all eventualities

@>-->---

[techxsarthak]

And I developed the extension