ios指纹TouchID

// Created by ever on 17/3/7.
// Copyright © 2017年 ever. All rights reserved.
//
#import
typedef NS_ENUM(NSInteger, TITouchIDVerificationError) {TITouchIDVerificationErrorLocalizedReason,TITouchIDVerificationErrorAuthFailMessage,TITouchIDVerificationErrorNotAvailableMessage,TITouchIDVerificationErrorNotEnrolledMessage,TITouchIDVerificationErrorLockOut,TITouchIDVerificationErrorPasscodeNotSetMessage,TITouchIDVerificationErrorUserCancel,TITouchIDVerificationErrorAppCancel,TITouchIDVerificationErrorUnknown
};typedef NS_ENUM(NSInteger, TIVerificationStatus) {TIVerificationStatusSuccess,TIVerificationStatusPasswordNotSet,TIVerificationStatusNotEncrolled,TIVerificationStatusFailed,TIVerificationStatusFallback,TIVerificationStatusLockOut,TIVerificationStatusCancel,TIVerificationStatusError,
};typedef void(^VerificationCompletion)(TIVerificationStatus status, NSError *error);&＃64;interface LYYTouchID : NSObject
/**调用TouchID&＃64;param completion 验证完成,如果返回YES,验证成功;如果返回NO,验证失败(输入密码和指纹验证失败)*/
&＃43; (void)touchVerificationWithFallbackTitle:(NSString*)fallbackTitle completion:(VerificationCompletion)completion;&＃64;end

// Created by ever on 17/3/7.
// Copyright © 2017年 ever. All rights reserved.#import "LYYTouchID.h"
#import
#import #define TI_IS_iOS_LATER(num) ([UIDevice currentDevice].systemVersion.floatValue >&＃61; (num))
#define TI_IS_iOS8_LATER TI_IS_iOS_LATER(8.0)
#define TI_IS_iOS9_LATER TI_IS_iOS_LATER(9.0)
#define TI_IS_iOS10_LATER TI_IS_iOS_LATER(10.0)
#define TI_IS_iOS11_LATER TI_IS_iOS_LATER(11.0)NSString * const TouchIDLocalizedReason &＃61; &＃64;"请您验证已有TouchID";
NSString * const TouchIDNotAvailableMessage &＃61; &＃64;"您当前设备不支持TouchID";
NSString * const TouchIDNotEnrolledMessage &＃61; &＃64;"您当前没有录入指纹信息";
NSString * const TouchIDNotCorrectMessage &＃61; &＃64;"您的指纹信息不匹配";
NSString * const TouchIDPasscodeNotSetMessage &＃61; &＃64;"您当前没有设置密码";
NSString * const TouchIDCancelMessage &＃61; &＃64;"您已取消验证TouchID";
NSString * const TouchIDUnknownErrorMessage &＃61; &＃64;"出现未知错误";
NSString * const TouchIDLockOutMessage &＃61; &＃64;"TouchID 被锁定";static BOOL _isTouchIDSecondCheck;//用于存储第一遍canEvaluatePolicy检查到的指纹被锁的状态
static BOOL _touchIDSecondCheck;//用于存储canEvaluatePolicy是否是第二次查询&＃64;interface LYYTouchID ()
&＃64;end&＃64;implementation LYYTouchID#pragma mark - 验证
&＃43; (void)touchVerificationWithFallbackTitle:(NSString*)fallbackTitle completion:(VerificationCompletion)completion{LAContext *context &＃61; [[LAContext alloc] init];context.localizedFallbackTitle &＃61; fallbackTitle?:&＃64;"";LAPolicy policy &＃61; [self setPolicy];NSError *notSupportError &＃61; nil;if ([context canEvaluatePolicy:policy error:&notSupportError]) {//处理10.*系统纯指纹策略不走passwordNotSet方法if (_touchIDSecondCheck&&TI_IS_iOS10_LATER&&!TI_IS_iOS11_LATER) {//第二次检测指纹是否可用&＃xff08;指纹&＃43;密码策略&＃xff09;&＃xff0c;且可以_touchIDSecondCheck &＃61; NO;completion(TIVerificationStatusNotEncrolled,[self returnErrorInfoWithErrorCode:LAErrorTouchIDNotEnrolled]);return;}//不是第二次检测指纹是否可用&＃xff0c;直接进行验证[context evaluatePolicy:policy localizedReason:TouchIDLocalizedReason reply:^(BOOL success, NSError * _Nullable error) {dispatch_async(dispatch_get_main_queue(), ^{if (success) {if (TI_IS_iOS9_LATER&&_isTouchIDSecondCheck) {//TouchID 解锁成功时&＃xff0c;更改为纯指纹策略&＃xff0c;验证TouchID_isTouchIDSecondCheck &＃61; NO;[self touchVerificationWithFallbackTitle:fallbackTitle completion:completion];}else{//ios9.0之前版本不支持密码策略直接返回信息_isTouchIDSecondCheck &＃61; NO;completion(TIVerificationStatusSuccess,nil);}}else {int code &＃61; (int)error.code;////设置锁定状态为NO_isTouchIDSecondCheck &＃61; NO;[self dealErrorWithErrorCode:code fallbackTitle:fallbackTitle complection:completion];}});}];}else {[self dealErrorWithErrorCode:(int)notSupportError.code fallbackTitle:fallbackTitle complection:completion];}
}
#pragma mark - 设置指纹策略
&＃43; (LAPolicy)setPolicy{LAPolicy policy;if (_touchIDSecondCheck&&TI_IS_iOS9_LATER){//已经查验过纯指纹策略&＃xff0c;且纯指纹策略不支持&＃xff0c;改变策略为指纹&＃43;密码进行二次验证policy &＃61; LAPolicyDeviceOwnerAuthentication;return policy;}if (_isTouchIDSecondCheck&&TI_IS_iOS9_LATER) {//指纹被锁定且系统大于9.0&＃xff0c;使用“指纹&＃43;密码”策略policy &＃61; LAPolicyDeviceOwnerAuthentication;}else{//使用“指纹”策略&＃xff08;默认是指纹策略&＃xff09;policy &＃61; LAPolicyDeviceOwnerAuthenticationWithBiometrics;}return policy;
}
#pragma mark - 处理不同错误
&＃43; (void)dealErrorWithErrorCode:(int)code fallbackTitle:(NSString*)fallbackTitle complection:(VerificationCompletion)completion{switch (code) {case LAErrorUserFallback:completion(TIVerificationStatusFallback,[self returnErrorInfoWithErrorCode:code]);break;case LAErrorAuthenticationFailed:completion(TIVerificationStatusFailed,[self returnErrorInfoWithErrorCode:code]);break;case LAErrorSystemCancel:{_isTouchIDSecondCheck &＃61; NO;_touchIDSecondCheck &＃61; NO;}break;case LAErrorPasscodeNotSet:_isTouchIDSecondCheck &＃61; NO;_touchIDSecondCheck &＃61; NO;completion(TIVerificationStatusPasswordNotSet,[self returnErrorInfoWithErrorCode:code]);break;case LAErrorTouchIDNotAvailable:break;case LAErrorAppCancel:{_isTouchIDSecondCheck &＃61; NO;_touchIDSecondCheck &＃61; NO;}break;case LAErrorUserCancel:_isTouchIDSecondCheck &＃61; NO;_touchIDSecondCheck &＃61; NO;completion(TIVerificationStatusCancel,[self returnErrorInfoWithErrorCode:code]);break;default: {if (TI_IS_iOS9_LATER) {if (code&＃61;&＃61;LAErrorTouchIDLockout) {//ios9.0更改为密码策略&＃xff0c;解锁TouchID_isTouchIDSecondCheck &＃61; YES;[self touchVerificationWithFallbackTitle:fallbackTitle completion:completion];break;}}if (TI_IS_iOS8_LATER&&!TI_IS_iOS11_LATER) {if (code&＃61;&＃61;LAErrorTouchIDNotEnrolled) {//处理ios 10.*系统不走passwordNotSetif (TI_IS_iOS10_LATER&&!_touchIDSecondCheck) {//ios 9.0之后&＃xff0c;第一次返回指纹不可用的结果&＃xff08;这时是纯指纹策略&＃xff09;_touchIDSecondCheck &＃61; YES;[self touchVerificationWithFallbackTitle:fallbackTitle completion:completion];}else{//ios 9.0 之后是第二次返回不可用结果&＃xff0c;此时采用的是指纹&＃43;密码策略&＃xff0c;此时指纹确实不可用//ios 9.0 之前&＃xff0c;第一次返回指纹不可用的结果&＃xff0c;此时直接返回指纹不可用的错误_touchIDSecondCheck &＃61; NO;completion(TIVerificationStatusNotEncrolled,[self returnErrorInfoWithErrorCode:code]);}break;}}if (&＃64;available(iOS 11.0, *)) {if (code&＃61;&＃61;LAErrorBiometryNotEnrolled) {completion(TIVerificationStatusNotEncrolled,[self returnErrorInfoWithErrorCode:code]);break;}}completion(TIVerificationStatusError,[self returnErrorInfoWithErrorCode:code]);}break;}
}#pragma mark - 生成error
&＃43; (NSError *)returnErrorInfoWithErrorCode:(int)errorCode {if (TI_IS_iOS9_LATER) {if (errorCode &＃61;&＃61; LAErrorAppCancel) {NSError *tempError &＃61; [NSError errorWithDomain:&＃64;"TouchIDVerfityDomain" code:TITouchIDVerificationErrorAppCancel userInfo:&＃64;{&＃64;"message":TouchIDCancelMessage}];return tempError;}}NSString *errorMessage &＃61; &＃64;"";NSUInteger errCode &＃61; 0;switch (errorCode) {case LAErrorTouchIDNotAvailable:errorMessage &＃61; TouchIDNotAvailableMessage;errCode &＃61; TITouchIDVerificationErrorNotAvailableMessage;break;case LAErrorAuthenticationFailed:errorMessage &＃61; TouchIDNotCorrectMessage;errCode &＃61; TITouchIDVerificationErrorAuthFailMessage;break;case LAErrorPasscodeNotSet:errorMessage &＃61; TouchIDPasscodeNotSetMessage;errCode &＃61; TITouchIDVerificationErrorPasscodeNotSetMessage;break;case LAErrorUserCancel:errorMessage &＃61; TouchIDCancelMessage;errCode &＃61; TITouchIDVerificationErrorUserCancel;break;default:if (TI_IS_iOS9_LATER) {if (errorCode&＃61;&＃61;LAErrorTouchIDLockout) {errorMessage &＃61; TouchIDLockOutMessage;errCode &＃61; TITouchIDVerificationErrorLockOut;break;}}if (TI_IS_iOS8_LATER&&!TI_IS_iOS11_LATER) {if (errorCode&＃61;&＃61;LAErrorTouchIDNotEnrolled) {errorMessage &＃61; TouchIDNotEnrolledMessage;errCode &＃61; TITouchIDVerificationErrorNotEnrolledMessage;break;}}if (&＃64;available(iOS 11.0, *)) {if (errorCode&＃61;&＃61;LAErrorBiometryNotEnrolled) {errorMessage &＃61; TouchIDNotEnrolledMessage;errCode &＃61; TITouchIDVerificationErrorNotEnrolledMessage;break;}}errorMessage &＃61; TouchIDUnknownErrorMessage;errCode &＃61; TITouchIDVerificationErrorUnknown;break;}NSError *tempError &＃61; [NSError errorWithDomain:&＃64;"TouchIDVerfityDomain" code:errCode userInfo:&＃64;{&＃64;"message":errorMessage}];//
return tempError;
}
&＃64;end