发布 apk flutter 中的本地认证问题

问题描述

我最近遇到了这个问题。本地身份验证可以在 Flutter run 和 --release,--profile 上完美运行。但是当我制作APK然后安装它时，本地身份验证不起作用，应用程序崩溃。当我运行相同的应用程序但电缆连接到我的计算机时，应用程序中没有错误。

到这里，函数调用开始，

onpressed: () {
                              bool enable = preferences.getBool('bioAuth');
                              if (enable == null || enable == false) {
                                showSnack('Biometric Auth not Enabled...');
                              } else {
                                biometricLogin(
                                    context: context,mainCol: mainCol);
                              }

                            },

这里是 biometricLogin 函数。

void biometricLogin({context,mainCol}) async {
bool authenticated =
    await checkBiometric(context: context,mainCol: mainCol);

if (authenticated == null || authenticated == false) {
  showSnack('BioAuth not valid...');
} else {
  bool isGoogle = preferences.getBool('googleSignIn');
  bool isApple = preferences.getBool('appleSignin');
  if (isGoogle) {
    showSnack('Logging in...');
    User user = await _auth.signInWIthGoogleCreds();
    print(user);
    if (user == null) {
      showSnack('Try logging in through Google again...');
    }
  } else if (isApple) {
    showSnack('Logging in...');
    User user = await _auth.signInWIthAppleCreds();
    print(user);
    if (user == null) {
      showSnack('Try logging in through Apple again...');
    }
  } else {
    User user;
    showSnack('Logging in...');
    var email = preferences.getString('email');
    var password = preferences.getString('pass');
    user = await _auth.signIn(email,password);
    if (user != null) {
      await preferences.setBool('loggedIn',true);
    } else {
      showSnack('Something went wrong');
    }
  }
}

}

这里是 checkBiometrics 函数。

Future<bool> checkBiometric({context,mainCol}) async {
if (bioAuth == null || bioAuth == false) {
  showSnack('Biometrics not Enabled');
  return false;
} else {
  try {
    canCheckBiometrics = await auth.canCheckBiometrics;
    if (!mounted) return false;
    List<BiometricType> availableBiometrics;
    availableBiometrics = await auth.getAvailableBiometrics();
    bool authenticated = false;
    if (Platform.isIOS) {
      const iosstrings = const IOSAuthMessages(
          cancelButton: 'cancel',goToSettingsButton: 'settings',goToSettingsDescription: 'Please set up your Touch ID.',lockOut: 'Please re-enable your Touch ID');
      if (availableBiometrics.contains(BiometricType.face) ||
          availableBiometrics.contains(BiometricType.fingerprint)) {
        authenticated = await auth.authenticateWithBiometrics(
          localizedReason: "Please authenticate to login",useErrorDialogs: true,iOSAuthStrings: iosstrings,stickyAuth: true,);
      } else
        authenticated = false;
    } else {
      authenticated = await auth.authenticateWithBiometrics(
        localizedReason: 'Touch your finger on the sensor to login',);
    }
    return authenticated;
  } catch (e) {
    showSnack("error using biometric auth: $e");
  }
  setState(() {
    authenticated = authenticated ? true : false;
  });
  return authenticated;
}

}

据我所知。该应用程序不会领先于 checkBiometrics，因为只需按下按钮它就会崩溃。

解决方法

前往

android\app\proguard-rules.pro

添加以下行

-keep class androidx.lifecycle.DefaultLifecycleObserver