判断密码并认证FaceID

• (IBAction)btn:(id)sender {
  if ([_zhanghao.text isEqual:@""]) {
  UIAlertView *aler =[[UIAlertView alloc] initWithTitle:@“提示” message:@“账号 不能为空” delegate:self cancelButtonTitle:@“确定” otherButtonTitles:nil, nil];
  [aler show];
  }else{
  if ([_mima.text isEqual:@""]) {
  UIAlertView *aler =[[UIAlertView alloc] initWithTitle:@“提示” message:@“密码 不能为空” delegate:self cancelButtonTitle:@“确定” otherButtonTitles:nil, nil];
  [aler show];
  return ;
  }

    if ([self judgePassWordLegal:_mima.text]==YES) {
        LAContext *authenticationContext = [[LAContext alloc]init];
        NSError* error = [[NSError alloc]init];
        BOOL  isTouchIdAailable = [authenticationContext canEvaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics error:nil];
        
        if (isTouchIdAailable) {
            NSLog(@"认证成功");
            [authenticationContext evaluatePolicy:LAPolicyDeviceOwnerAuthenticationWithBiometrics localizedReason:@"需要验证您的指纹来确认您的身份信息" reply:^(BOOL success, NSError * _Nullable error) {
                if(success) {
                    dispatch_async(dispatch_get_main_queue(), ^{
                        twoViewController *sec =[[twoViewController alloc] init];
                        [self presentViewController:sec animated:YES completion:nil];
                    });
                    
                    NSLog(@"恭喜，您通过了Touch ID指纹验证!");
                }
                else
                {
                    NSLog(@"抱歉，您未通过了Touch ID指纹验证!");
                }
            }];
        }else{
            UIAlertController *alertvc =[UIAlertController alertControllerWithTitle:@"提示" message:@"不支持 touchID/fachID" preferredStyle:UIAlertControllerStyleAlert];
            [alertvc addAction:[UIAlertAction actionWithTitle:@"确定" style:UIAlertActionStyleCancel handler:nil]];
            [self presentViewController:alertvc animated:YES completion:nil];
        }
        
        
        twoViewController *two =[twoViewController new];
        [self presentViewController:two animated:YES completion:nil];
    }else{
        UIAlertView *aler =[[UIAlertView alloc] initWithTitle:@"提示" message:@"密码 格式不正确" delegate:self cancelButtonTitle:@"确定" otherButtonTitles:nil, nil];
        [aler show];
    }
  

  }
  }
  -(BOOL)judgePassWordLegal:(NSString *)_textfile{
  BOOL result = false;
  if ([_textfile length] >= 8){
  // 判断长度大于8位后再接着判断是否同时包含数字和字符
  NSString * regex = @"¹{4,16}$";
  //识别正则语句 的类
  NSPredicate *pred = [NSPredicate predicateWithFormat:@“SELF MATCHES %@”, regex];
  result = [pred evaluateWithObject:_textfile];
  }
  return result;
  }

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1. 0-9A-Za-z ↩︎