FingerprintAuthenticationDialogFragment NullPointerException start nasirku

[mendreuk]

Kdyz nastartuju Equa appku v orientaci na sirku a mam v aktivaci zapnuty fingerprint, tak to spadne pri otevirani dialogu na to, ze tam chybi context. Na vysku to normalne funguje.

java.lang.NullPointerException: Attempt to invoke virtual method 'int android.content.Context.getColor(int)' on a null object reference
    at io.getlime.security.powerauth.keychain.fingerprint.FingerprintAuthenticationDialogFragment$5.onShow(FingerprintAuthenticationDialogFragment.java:233)
    at android.app.Dialog$ListenersHandler.handleMessage(Dialog.java:1343)
    at android.os.Handler.dispatchMessage(Handler.java:102)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6077)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)

[petrdvorak]

Juraj, I will have a look tonight but if you managed to check the issue faster, it would help... :)

[petrdvorak]

@mendreuk Hello, how do you call the code that crashes? Could you please paste some code snippet here?

[mendreuk]

Here is a simplified LoginActivity which crashes inside authenticateUsingFingerprint() method when resumed in landscape orientation. The exception is above.

public class LoginActivity {

    @Override
    protected void onResume() {
        super.onResume();

        openFingerprintIfAvailable();
    }

    private void openFingerprintIfAvailable() {
        if (hasBiometryFactor()) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
                ApplicationEquaBank.getPowerAuthSDK().authenticateUsingFingerprint(this, getFragmentManager(), getString(R.string.login_fingerprint_title), getString(R.string.login_fingerprint_message), new IFingerprintActionHandler() {
                    @Override
                    public void onFingerprintDialogCancelled() {
                    }

                    @Override
                    public void onFingerprintDialogSuccess(@Nullable byte[] bytes) {
                        sendBiometryKey(bytes);
                    }

                    @Override
                    public void onFingerprintInfoDialogClosed() {
                    }
                });
            }
        }
    }

    protected boolean hasBiometryFactor() {
        boolean hasBiometryFactor = false;
        if (isFingerprintAuthAvailable()) {
            if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
                hasBiometryFactor = ApplicationEquaBank.getPowerAuthSDK().hasBiometryFactor(this);
            }
        }
        return hasBiometryFactor;
    }

    protected boolean isFingerprintAuthAvailable() {
        boolean isFingerprintAuthAvailable = false;
        if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.M) {
            isFingerprintAuthAvailable = FingerprintUtilities.isFingerprintAuthAvailable(this);
        }
        return isFingerprintAuthAvailable;
    }

}

[petrdvorak]

... I am sorry, this one was dumb, I was using incorrect context object.

[mendreuk]

Ok, works now, thanks