Touch ID 与 Face ID 代码
Touch ID vs Face ID code
我想问一个关于生物认证的问题。在我的应用程序中，我使用 Touch ID 输入了身份验证。现在voelvo用Face ID实现方法
我在我的 .plist 文件中插入了行隐私 - 面容 ID 使用说明
现在我注意到我的 Face ID 可以正常工作，而无需对 TouchID 代码进行任何更改。
我的问题是：
** Touch ID实现代码和Face ID一样？我可以保留 Touch ID 实现代码而不做任何更改，还是必须为 Face ID 添加几行代码？**
我向您展示我是如何实现 Touch ID 的
#pragma mark - TOUCH ID Login
-(void)useTouchID {
NSError *error;
LAContext *context = [[LAContext alloc] init];
NSString *emailAccount = [KFKeychain loadObjectForKey:USER_EMAIL];
NSString *reasonString = [NSString stringWithFormat:@"Autentica %@ utilizzando la tua impronta", emailAccount];
if ([context canEvaluatePolicy:kLAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
[context evaluatePolicy:kLAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason: reasonString reply:^(BOOL success, NSError * _Nullable error) {
// Se la procedura con il TouchID va a buon fine settiamo il booleano su YES che specifica se l'utente a scelto di utilizzare il TouchID oppure NO.
// Successivamente invochiamo il metodo loginWithFirebase per procedere con l'autenticazione su firebase
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE showHud];
});
if (success) {
_useBiometricsAuthentication = YES;
// Attualmente il TouchID non viene supportato da Firebase pertanto dobbiamo autenticarci con l'impronta digitale e successivamente eseguire il login con Firebase.
[self useFirebaseSignIn];
}
// Nel caso in cui si verifichino alcuni errori con l'uso del TouchID andiamo ad implementare ogni singolo errore che l'utente puo' riscontrare
else {
_useBiometricsAuthentication = NO;
switch ([error code]) {
// L'autenticazione con Touch ID è fallità
case kLAErrorAuthenticationFailed:
NSLog(@"Autenticazione Fallita");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE removeHud];
});
break;
// L'user ha spinto annulla sull'alert che compare sulla richiesta di TouchID oppure ha spinto il pulsante Home facendo scomparire l'alert
case kLAErrorUserCancel:
NSLog(@"User ha respinto il touch ID");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE removeHud];
});
break;
// In questo caso l'user ha piu volte tentato di utilizzare il touchID e ha preferito inserire le proprie credenziali manualmente
case kLAErrorUserFallback:
NSLog(@"L'user ha scelto di utilizzare il login di firebase");
// a questo punto eliminiamo tutti i dati salvati con il login precedente in modo tale da poter salvare nuovamente le credenziali che l'utente ha inserito manualmente
[self deleteUserKey];
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE removeHud];
});
break;
// L'errore ci comunica che l'utente molto probabilmente non ha mai inserito / salvato le proprie impronte digitali nel suo dispositivo
case kLAErrorTouchIDNotEnrolled:
NSLog(@" non sono state impostate impronte per utilizzare il touch id");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE showAlertWithTitle:@"ATTENZIONE" message:@"Il TUOCH ID ha bisogno di avere delle impronte digitali impostate per poter funzionare. Vai sulle IMPOSTAZIONI del tuo dispositivo in TOUCH ID e CODICE per inserirle" optionTitle:@"OK" otherOptionTitle:nil optionButtonAction:^{
[APPDELEGATE dismissAlert];
} canButtonAction:nil];
[APPDELEGATE removeHud];
});
break;
// In questo caso ci avverte che per utilizzare il TouchID l'app deve aver salvato almeno una volte le credenziali che l'utente inserisce manualmente, all'interno di un portachiavi come ad esempio la libreria utilizzata in questa app (Keychain)
case kLAErrorPasscodeNotSet: {
NSLog(@"il touch id ha bisogno di avere dei codici di accesso salvati per essere usato");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE showAlertWithTitle:@"ATTENZIONE" message:@"Sembra che non vi sia nessun account collegato a queste impronte. Perfavore effettua il login classico utilizzando la tua Email e la tua Password del tuo account Unistit e riprova." optionTitle:@"OK" otherOptionTitle:nil optionButtonAction:^{
[APPDELEGATE dismissAlert];
[self.emailField becomeFirstResponder];
[self deleteUserKey];
} canButtonAction:nil];
[APPDELEGATE removeHud];
});
break;
}
default:
break;
}
}
}];
}
}
如果您的应用已经支持 Touch ID，则无需更新代码即可使用 Face ID。（如 here 所示）
iOS 负责所有幕后工作。
但是，如果应用程序在支持 Face ID 的设备上是 运行，则您可以将包含 "Touch ID" 的字符串更改为 "Face ID"。
编辑： 如MikeMertsock, the LAContext所述 class 有一个 biometryType 属性 来确定设备是否使用 Touch ID或面容 ID。
您可能正在寻找这个：biometryType 用于 specify/update 某些仅供用户信息使用的本地化文件。您的工作代码将自动识别 biometryType 并处理身份验证操作。你不需要更新它。
这是示例代码，您可以如何手动检测设备支持哪种生物识别类型。
LAContext *laContext = [[LAContext alloc] init];
NSError *error;
if ([laContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
if (error != NULL) {
// handle error
} else {
if (@available(iOS 11.0.1, *)) {
if (laContext.biometryType == LABiometryTypeFaceID) {
//localizedReason = "Unlock using Face ID"
NSLog(@"FaceId support");
} else if (laContext.biometryType == LABiometryTypeTouchID) {
//localizedReason = "Unlock using Touch ID"
NSLog(@"TouchId support");
} else {
//localizedReason = "Unlock using Application Passcode"
NSLog(@"No Biometric support");
}
} else {
// Fallback on earlier versions
}
[laContext evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"Test Reason" reply:^(BOOL success, NSError * _Nullable error) {
if (error != NULL) {
// handle error
} else if (success) {
// handle success response
} else {
// handle false response
}
}];
}
}
func authenticateUser() {
// Get the local authentication context.
let context = LAContext()
// Declare a NSError variable.
// Set the reason string that will appear on the authentication alert.
_ = "Authentication is needed to access your notes."
var policy: LAPolicy?
// Depending the iOS version we'll need to choose the policy we are able to use
if #available(iOS 9.0, *) {
// iOS 9+ users with Biometric and Passcode verification
policy = .deviceOwnerAuthentication
} else {
// iOS 8+ users with Biometric and Custom (Fallback button) verification
context.localizedFallbackTitle = "Fuu!"
policy = .deviceOwnerAuthenticationWithBiometrics
}
context.evaluatePolicy(policy!, localizedReason: "Please Add your touch Id", reply: { (success, error) in
DispatchQueue.main.async {
RKDropdownAlert.title(NSLocalizedString("Success", comment: ""), message: NSLocalizedString("User Touch Id Enrolled Successfully", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
guard success else {
guard let error = error else {
return
}
switch(error) {
case LAError.authenticationFailed:
//self.message.text = "There was a problem verifying your identity."
break
case LAError.userCancel:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("User cancelled", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Authentication was canceled by user."
// Fallback button was pressed and an extra login step should be implemented for iOS 8 users.
// By the other hand, iOS 9+ users will use the pasccode verification implemented by the own system.
break
case LAError.userFallback:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("The user tapped the fallback", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
//self.message.text = "The user tapped the fallback button (Fuu!)"
break
case LAError.systemCancel:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Authentication was canceled by system", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Authentication was canceled by system."
break
case LAError.passcodeNotSet:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Passcode is not set on the device", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Passcode is not set on the device."
break
case LAError.touchIDNotAvailable:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Touch ID is not available on the device", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Touch ID is not available on the device."
break
case LAError.touchIDNotEnrolled:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("TTouch ID has no enrolled fingers", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Touch ID has no enrolled fingers."
break
// iOS 9+ functions
case LAError.touchIDLockout:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("here were too many failed Touch ID attempts and Touch ID is now locked", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
break
case LAError.appCancel:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Authentication was canceled by application", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Authentication was canceled by application."
break
case LAError.invalidContext:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("LAContext passed to this call has been previously invalidated.", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "LAContext passed to this call has been previously invalidated."
break
default:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Touch ID may not be configured", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Touch ID may not be configured"
break
}
return
}
}
}
)
}
我想问一个关于生物认证的问题。在我的应用程序中，我使用 Touch ID 输入了身份验证。现在voelvo用Face ID实现方法
我在我的 .plist 文件中插入了行隐私 - 面容 ID 使用说明
现在我注意到我的 Face ID 可以正常工作，而无需对 TouchID 代码进行任何更改。
我的问题是：
** Touch ID实现代码和Face ID一样？我可以保留 Touch ID 实现代码而不做任何更改，还是必须为 Face ID 添加几行代码？**
我向您展示我是如何实现 Touch ID 的
#pragma mark - TOUCH ID Login
-(void)useTouchID {
NSError *error;
LAContext *context = [[LAContext alloc] init];
NSString *emailAccount = [KFKeychain loadObjectForKey:USER_EMAIL];
NSString *reasonString = [NSString stringWithFormat:@"Autentica %@ utilizzando la tua impronta", emailAccount];
if ([context canEvaluatePolicy:kLAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
[context evaluatePolicy:kLAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason: reasonString reply:^(BOOL success, NSError * _Nullable error) {
// Se la procedura con il TouchID va a buon fine settiamo il booleano su YES che specifica se l'utente a scelto di utilizzare il TouchID oppure NO.
// Successivamente invochiamo il metodo loginWithFirebase per procedere con l'autenticazione su firebase
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE showHud];
});
if (success) {
_useBiometricsAuthentication = YES;
// Attualmente il TouchID non viene supportato da Firebase pertanto dobbiamo autenticarci con l'impronta digitale e successivamente eseguire il login con Firebase.
[self useFirebaseSignIn];
}
// Nel caso in cui si verifichino alcuni errori con l'uso del TouchID andiamo ad implementare ogni singolo errore che l'utente puo' riscontrare
else {
_useBiometricsAuthentication = NO;
switch ([error code]) {
// L'autenticazione con Touch ID è fallità
case kLAErrorAuthenticationFailed:
NSLog(@"Autenticazione Fallita");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE removeHud];
});
break;
// L'user ha spinto annulla sull'alert che compare sulla richiesta di TouchID oppure ha spinto il pulsante Home facendo scomparire l'alert
case kLAErrorUserCancel:
NSLog(@"User ha respinto il touch ID");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE removeHud];
});
break;
// In questo caso l'user ha piu volte tentato di utilizzare il touchID e ha preferito inserire le proprie credenziali manualmente
case kLAErrorUserFallback:
NSLog(@"L'user ha scelto di utilizzare il login di firebase");
// a questo punto eliminiamo tutti i dati salvati con il login precedente in modo tale da poter salvare nuovamente le credenziali che l'utente ha inserito manualmente
[self deleteUserKey];
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE removeHud];
});
break;
// L'errore ci comunica che l'utente molto probabilmente non ha mai inserito / salvato le proprie impronte digitali nel suo dispositivo
case kLAErrorTouchIDNotEnrolled:
NSLog(@" non sono state impostate impronte per utilizzare il touch id");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE showAlertWithTitle:@"ATTENZIONE" message:@"Il TUOCH ID ha bisogno di avere delle impronte digitali impostate per poter funzionare. Vai sulle IMPOSTAZIONI del tuo dispositivo in TOUCH ID e CODICE per inserirle" optionTitle:@"OK" otherOptionTitle:nil optionButtonAction:^{
[APPDELEGATE dismissAlert];
} canButtonAction:nil];
[APPDELEGATE removeHud];
});
break;
// In questo caso ci avverte che per utilizzare il TouchID l'app deve aver salvato almeno una volte le credenziali che l'utente inserisce manualmente, all'interno di un portachiavi come ad esempio la libreria utilizzata in questa app (Keychain)
case kLAErrorPasscodeNotSet: {
NSLog(@"il touch id ha bisogno di avere dei codici di accesso salvati per essere usato");
dispatch_async(dispatch_get_main_queue(), ^{
[APPDELEGATE showAlertWithTitle:@"ATTENZIONE" message:@"Sembra che non vi sia nessun account collegato a queste impronte. Perfavore effettua il login classico utilizzando la tua Email e la tua Password del tuo account Unistit e riprova." optionTitle:@"OK" otherOptionTitle:nil optionButtonAction:^{
[APPDELEGATE dismissAlert];
[self.emailField becomeFirstResponder];
[self deleteUserKey];
} canButtonAction:nil];
[APPDELEGATE removeHud];
});
break;
}
default:
break;
}
}
}];
}
}
如果您的应用已经支持 Touch ID，则无需更新代码即可使用 Face ID。（如 here 所示）
但是，如果应用程序在支持 Face ID 的设备上是 运行，则您可以将包含 "Touch ID" 的字符串更改为 "Face ID"。
编辑： 如MikeMertsock, the LAContext所述 class 有一个 biometryType 属性 来确定设备是否使用 Touch ID或面容 ID。
您可能正在寻找这个：biometryType 用于 specify/update 某些仅供用户信息使用的本地化文件。您的工作代码将自动识别 biometryType 并处理身份验证操作。你不需要更新它。
这是示例代码，您可以如何手动检测设备支持哪种生物识别类型。
LAContext *laContext = [[LAContext alloc] init];
NSError *error;
if ([laContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error]) {
if (error != NULL) {
// handle error
} else {
if (@available(iOS 11.0.1, *)) {
if (laContext.biometryType == LABiometryTypeFaceID) {
//localizedReason = "Unlock using Face ID"
NSLog(@"FaceId support");
} else if (laContext.biometryType == LABiometryTypeTouchID) {
//localizedReason = "Unlock using Touch ID"
NSLog(@"TouchId support");
} else {
//localizedReason = "Unlock using Application Passcode"
NSLog(@"No Biometric support");
}
} else {
// Fallback on earlier versions
}
[laContext evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"Test Reason" reply:^(BOOL success, NSError * _Nullable error) {
if (error != NULL) {
// handle error
} else if (success) {
// handle success response
} else {
// handle false response
}
}];
}
}
func authenticateUser() {
// Get the local authentication context.
let context = LAContext()
// Declare a NSError variable.
// Set the reason string that will appear on the authentication alert.
_ = "Authentication is needed to access your notes."
var policy: LAPolicy?
// Depending the iOS version we'll need to choose the policy we are able to use
if #available(iOS 9.0, *) {
// iOS 9+ users with Biometric and Passcode verification
policy = .deviceOwnerAuthentication
} else {
// iOS 8+ users with Biometric and Custom (Fallback button) verification
context.localizedFallbackTitle = "Fuu!"
policy = .deviceOwnerAuthenticationWithBiometrics
}
context.evaluatePolicy(policy!, localizedReason: "Please Add your touch Id", reply: { (success, error) in
DispatchQueue.main.async {
RKDropdownAlert.title(NSLocalizedString("Success", comment: ""), message: NSLocalizedString("User Touch Id Enrolled Successfully", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
guard success else {
guard let error = error else {
return
}
switch(error) {
case LAError.authenticationFailed:
//self.message.text = "There was a problem verifying your identity."
break
case LAError.userCancel:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("User cancelled", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Authentication was canceled by user."
// Fallback button was pressed and an extra login step should be implemented for iOS 8 users.
// By the other hand, iOS 9+ users will use the pasccode verification implemented by the own system.
break
case LAError.userFallback:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("The user tapped the fallback", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
//self.message.text = "The user tapped the fallback button (Fuu!)"
break
case LAError.systemCancel:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Authentication was canceled by system", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Authentication was canceled by system."
break
case LAError.passcodeNotSet:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Passcode is not set on the device", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Passcode is not set on the device."
break
case LAError.touchIDNotAvailable:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Touch ID is not available on the device", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Touch ID is not available on the device."
break
case LAError.touchIDNotEnrolled:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("TTouch ID has no enrolled fingers", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Touch ID has no enrolled fingers."
break
// iOS 9+ functions
case LAError.touchIDLockout:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("here were too many failed Touch ID attempts and Touch ID is now locked", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
break
case LAError.appCancel:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Authentication was canceled by application", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Authentication was canceled by application."
break
case LAError.invalidContext:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("LAContext passed to this call has been previously invalidated.", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "LAContext passed to this call has been previously invalidated."
break
default:
RKDropdownAlert.title(NSLocalizedString("Error", comment: ""), message: NSLocalizedString("Touch ID may not be configured", comment: ""), backgroundColor: BMConstants.KAppBGColor, textColor: BMConstants.KAppWhiteColor)
// self.message.text = "Touch ID may not be configured"
break
}
return
}
}
}
)
}