JHVCConfig *config     = [[JHVCConfig alloc] init];
    config.inputBoxNumber  = 6; 
    config.inputBoxSpacing = 5;
    config.inputBoxWidth   = 33;
    config.inputBoxHeight  = 28;
    config.tintColor       = [UIColor blackColor];
    config.secureTextEntry = YES;
    config.inputBoxColor   = [UIColor brownColor];
    config.font            = [UIFont boldSystemFontOfSize:16];
    config.textColor       = [UIColor brownColor];
    config.inputType       = JHVCConfigInputType_Number_Alphabet; // Default
    
    [self.view addSubview:({
        JHVerificationCodeView *codeView =
        [[JHVerificationCodeView alloc] initWithFrame:CGRectMake(10, 100, kScreenWidth-20, 30)
                                               config:config];
        codeView.finishBlock = ^(NSString *code) {
            label.text = code;
        };
        codeView;
    })];