I was testing the module on a couple of devices with respectively API level 21 and 17.

Okey, I've got something. Just before authenticating try this <div class="snippet-

Fixed in <a class="issue-link js-issue-link" data-error-text="Failed to load title" da

I think, in FingerprintAuthModule.java </blockquote

Hi <a class="user-mention notranslate" data-hovercard-type="user" data-hovercard-url="

Android FingerprintManager not supported for API lower than 23 about react-native-touch-id HOT 7 CLOSED

naoufal commented on June 22, 2024 4

Android FingerprintManager not supported for API lower than 23

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Comments (7)

szczepcio95 commented on June 22, 2024 2

Okey, I've got something. Just before authenticating try this

if (Platform.OS === 'android' && Platform.Version <= 23 ) {
            // not performing any TouchID actions
        }

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gazaret commented on June 22, 2024 1

Fixed in #96

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szczepcio95 commented on June 22, 2024

Any ideas? Having the same problem

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marcorm commented on June 22, 2024

I think, in

FingerprintAuthModule.java

this:

  public void isSupported(Callback reactErrorCallback, Callback reactSuccessCallback) {
    keyguardManager = (KeyguardManager) getCurrentActivity().getSystemService(Context.KEYGUARD_SERVICE);
    fingerprintManager = (FingerprintManager) getCurrentActivity().getSystemService(Context.FINGERPRINT_SERVICE);
    if(!isFingerprintAuthAvailable()) {
      reactErrorCallback.invoke("Not supported.");
    } else {
      reactSuccessCallback.invoke("Is supported.");
    }
    return ;
  }

should become something like:

  public void isSupported(Callback reactErrorCallback, Callback reactSuccessCallback) {
    if(!isFingerprintAuthAvailable()) {
      reactErrorCallback.invoke("Not supported.");
    } else {
      keyguardManager = (KeyguardManager) getCurrentActivity().getSystemService(Context.KEYGUARD_SERVICE);
      fingerprintManager = (FingerprintManager) getCurrentActivity().getSystemService(Context.FINGERPRINT_SERVICE);
      reactSuccessCallback.invoke("Is supported.");
    }
    return ;
  }

Correct me if i'm wrong...

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marcorm commented on June 22, 2024

Hi @gazaret , are you sure your solution work? Because the solution i proposed is unstable...

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gazaret commented on June 22, 2024

Hi @marcorm , yes it was unstable on api 23+.
Now fixed this.
Tested on android 4.4 and 7.0. It works.

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