Memory Leak

[siddharthuohyd]

Getting leak of 4.7KB using this library.Added the screenshot also for better clarity.This is the snippet that I have used in my project which gets the leak which is determined by the Leak Canary tool.

  private void fingerprintAuthentication() {
    if (RxFingerprint.isAvailable(getAppContextFromView())) {
        mDisposable = RxFingerprint.authenticate(getAppContextFromView())
                .subscribeOn(Schedulers.io())
                .subscribe(fingerprintAuthenticationResult -> {
                    switch (fingerprintAuthenticationResult.getResult()) {
                        case FAILED:
                            Toast.makeText(getAppContextFromView(),
                                    R.string.error_finger_print_not_valid,
                                    Toast.LENGTH_SHORT).show();
                            if (mFingerPrintTouchCallBack != null) {
                                mFingerPrintTouchCallBack.onAuthenticationFailed();
                            }

                            break;
                        case HELP:
                            Toast.makeText(getAppContextFromView(),
                                    fingerprintAuthenticationResult.getMessage(),
                                    Toast.LENGTH_SHORT).show();
                            break;
                        case AUTHENTICATED:
                            if (mFingerPrintTouchCallBack != null) {
                                mFingerPrintTouchCallBack.onAuthenticationSuccess();
                                mConfirmPinPresenter.pinUpdated();
                            }
                            break;
                    }
                }, throwable -> {
                    if (throwable instanceof FingerprintAuthenticationException) {
                        if (throwable.getMessage() != null && throwable.getMessage()
                                .contains(
                                        TOO_MANY_ATTEMPT_STR)) {
                            Toast.makeText(getAppContextFromView(),
                                    throwable.getMessage(),
                                    Toast.LENGTH_SHORT).show();
                            mConfirmPinPresenter.logout();
                        }
                    }
                });
    }
}

[Mauin]

Thanks for reporting this leak. I'll take a look at it and see if there is anything we can improve in RxFingerprint or if the FingerprintManager internally is causing this leak.

[kotoMJ]

I had similar issue and it seems to be FingerprintManager issue. The workaround is described here: https://stackoverflow.com/questions/53481621/memory-leak-but-how-can-i-pass-a-different-context-than-the-one-of-the-activity