工具类 OJPTools.m 中实现
导入
" #import <LocalAuthentication/LocalAuthentication.h> "
//自己定义的返回值
typedef NS_ENUM (NSInteger, OJPFingerprintVerify) {
OJPFingerprintVerifyChanged = 0, // 指纹变化
OJPFingerprintVerifySuccess, // 验证成功
OJPFingerprintVerifyCancel, // 取消验证
OJPFingerprintVerifyFailed // 验证失败
};
//指纹验证
+ (void) validFingerprintWithComplete:(void(^)(OJPFingerprintVerify verifyResault))complete {
LAContext * context = [[LAContext alloc] init];
NSData *domainState = [context evaluatedPolicyDomainState];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
NSData *oldDomainState = [defaults objectForKey:@"domainTouchID"];
if (oldDomainState && ![oldDomainState isEqual:domainState]) {
[OJPNSUserDefaultsTools setIsOpenFingerprint:NO];
complete(OJPFingerprintVerifyChanged);
return;
}
NSString *result = @"请验证已有的指纹，用于余额支付";
NSError *error = nil;
BOOL canUseTouchID = [context canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:&error] ;
if (canUseTouchID) {
[context evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:result reply:^(BOOL success, NSError * _Nullable error) {
if (success) {
complete(OJPFingerprintVerifySuccess);
} else if (error) {
LAError errorCode = error.code;
switch (errorCode) {
case LAErrorUserCancel:// -2 在TouchID对话框中点击了取消按钮 0
case LAErrorSystemCancel:// -4 TouchID对话框被系统取消，例如按下Home或者电源键 0
case LAErrorAppCancel: //-9如突然来了电话，电话应用进入前台，APP被挂起啦" 0
case LAErrorNotInteractive:
complete(OJPFingerprintVerifyCancel);
break;
case LAErrorAuthenticationFailed:// -1 连续三次指纹识别错误 1
case LAErrorUserFallback:// -3 在TouchID对话框中点击了输入密码按钮 1
case LAErrorInvalidContext: // -10LAContext传递给这个调用之前已经失效 1
complete(OJPFingerprintVerifyFailed);
break;
case LAErrorTouchIDLockout: //-8 连续五次指纹识别错误，TouchID功能被锁定，下一次需要输入系统密码 0
{//输入系统密码
[context evaluatePolicy:LAPolicyDeviceOwnerAuthentication localizedReason:result reply:^(BOOL success, NSError * _Nullable error) {
if (success) {
[self validFingerprintWithComplete:complete];
} else {
complete(OJPFingerprintVerifyCancel);
}
}];
}
break;
default:
complete(OJPFingerprintVerifyCancel);
break;
}
}
}];
}else { //输入系统密码
switch (error.code) {
case LAErrorPasscodeNotSet: //-5 设备系统未设置密码
case LAErrorTouchIDNotEnrolled: // -7用户未录入指纹
case kLAErrorTouchIDNotAvailable: // -6设备未设置Touch ID
complete(OJPFingerprintVerifyFailed);
break;
default:
{
[context evaluatePolicy:LAPolicyDeviceOwnerAuthentication localizedReason:result reply:^(BOOL success, NSError * _Nullable error) {
if (success) {
[self validFingerprintWithComplete:complete];
} else {
complete(OJPFingerprintVerifyCancel);
}
}];
}
break;
}
}
}
//在设置中实现指纹支付开关
- (void) switchAction:(UISwitch *)s1 {
if (s1.on) {
[self.viewController.view setUserInteractionEnabled:NO];
[OJPTools validFingerprintWithComplete:^(OJPFingerprintVerify verifyResault) {
dispatch_async(dispatch_get_main_queue(), ^{
[self.viewController.view setUserInteractionEnabled:YES];
switch (verifyResault) {
case OJPFingerprintVerifySuccess:
{
[OJPNSUserDefaultsTools setIsOpenFingerprint:YES]; //存本地
LAContext * context = [[LAContext alloc] init];
NSData *domainState = [context evaluatedPolicyDomainState];
NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
[defaults setObject:domainState forKey:@"domainTouchID"];
[defaults synchronize];
}
break;
default:
{
s1.on = NO;
UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:@"" message:@"指纹验证失败，未能开启指纹支付。" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *action = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
}];
[alertVC addAction:action];
[self.viewController presentViewController:alertVC animated:YES completion:nil];
}
break;
}
});
}];
}else{
[OJPNSUserDefaultsTools setIsOpenFingerprint:NO]; //存本地
}
}
//支付代码
if ([OJPNSUserDefaultsTools getIsOpenFingerprint]) {
[self.view setUserInteractionEnabled:NO];
[OJPTools validFingerprintWithComplete:^(OJPFingerprintVerify verifyResault) {
dispatch_async(dispatch_get_main_queue(), ^{
[self.view setUserInteractionEnabled:YES];
switch (verifyResault) {
case OJPFingerprintVerifySuccess:
//指纹支付接口
break;
case OJPFingerprintVerifyFailed:
[self payPasswordActoin];//密码支付
break;
case OJPFingerprintVerifyChanged:
{
[OJPNSUserDefaultsTools setIsOpenFingerprint:NO];//存本地
UIAlertController *alertVC = [UIAlertController alertControllerWithTitle:@"" message:@"您的指纹库已发生改变，已为您关闭指纹支付，请使用密码支付或去支付设置中重新打开指纹支付。" preferredStyle:UIAlertControllerStyleAlert];
UIAlertAction *action = [UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleDefault handler:^(UIAlertAction * _Nonnull action) {
// [defaults setObject:domainState forKey:@"domainTouchID"];
// [defaults synchronize];
[self payPasswordActoin];
}];
[alertVC addAction:action];
[self presentViewController:alertVC animated:YES completion:nil];
}
break;
default:
break;
}
});
}];
}
else {
[self payPasswordActoin];//密码支付
}
}
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