CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithFrame:CGRectMake(0, 0, 200, 50)];
boxInputView.codeLength = 4;// 不设置时，默认4
boxInputView.keyBoardType = UIKeyboardTypeNumberPad;// 不设置时，默认UIKeyboardTypeNumberPad
[boxInputView loadAndPrepareViewWithBeginEdit:YES]; // BeginEdit:是否自动启用编辑模式
[self.view addSubview:boxInputView];

// 输入类型（纯数字）
_boxInputView.inputType = CRInputType_Number;

// 输入类型（正则表达式）
//_boxInputView.inputType = CRInputType_Regex;
//_boxInputView.customInputRegex = @"[^0-9]";

// 获取值
// 方法1, 当输入文字变化时触发回调block
boxInputView.textDidChangeblock = ^(NSString *text, BOOL isFinished) {
    NSLog(@"text:%@", text);
};
// 方法2, 普通的只读属性
NSLog(@"textValue:%@", boxInputView.textValue);

// 清空
[boxInputView clearAllWithBeginEdit:YES]; // BeginEdit:清空后是否自动启用编辑模式

CRBoxInputCellProperty *cellProperty = [CRBoxInputCellProperty new];
cellProperty.cellPlaceholderTextColor = [UIColor colorWithRed:114/255.0 green:116/255.0 blue:124/255.0 alpha:0.3]; //可选
cellProperty.cellPlaceholderFont = [UIFont systemFontOfSize:20]; //可选

CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithCodeLength:4];
boxInputView.ifNeedCursor = NO; //可选
boxInputView.placeholderText = @"露可娜娜"; //必需
boxInputView.customCellProperty = cellProperty;
[boxInputView loadAndPrepareViewWithBeginEdit:YES];

CRBoxInputCellProperty *cellProperty = [CRBoxInputCellProperty new];
cellProperty.cellBgColorNormal = color_FFECEC;
cellProperty.cellBgColorSelected = [UIColor whiteColor];
cellProperty.cellCursorColor = color_master;
cellProperty.cellCursorWidth = 2;
cellProperty.cellCursorHeight = 30;
cellProperty.cornerRadius = 4;
cellProperty.borderWidth = 0;
cellProperty.cellFont = [UIFont boldSystemFontOfSize:24];
cellProperty.cellTextColor = color_master;
cellProperty.configCellShadowBlock = ^(CALayer * _Nonnull layer) {
    layer.shadowColor = [color_master colorWithAlphaComponent:0.2].CGColor;
    layer.shadowOpacity = 1;
    layer.shadowOffset = CGSizeMake(0, 2);
    layer.shadowRadius = 4;
};

CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithCodeLength:4];
boxInputView.boxFlowLayout.itemSize = CGSizeMake(50, 50);
boxInputView.customCellProperty = cellProperty;
[boxInputView loadAndPrepareViewWithBeginEdit:YES];

CRBoxInputCellProperty *cellProperty = [CRBoxInputCellProperty new];
cellProperty.showLine = YES; //必需
cellProperty.customLineViewBlock = ^CRLineView * _Nonnull{
    CRLineView *lineView = [CRLineView new];
    lineView.underlineColorNormal = [color_master colorWithAlphaComponent:0.3];
    lineView.underlineColorSelected = [color_master colorWithAlphaComponent:0.7];
    lineView.underlineColorFilled = color_master;
    [lineView.lineView mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.height.mas_equalTo(4);
        make.left.right.bottom.offset(0);
    }];

    lineView.selectChangeBlock = ^(CRLineView * _Nonnull lineView, BOOL selected) {
        if (selected) {
            [lineView.lineView mas_updateConstraints:^(MASConstraintMaker *make) {
                make.height.mas_equalTo(6);
            }];
        } else {
            [lineView.lineView mas_updateConstraints:^(MASConstraintMaker *make) {
                make.height.mas_equalTo(4);
            }];
        }
    };
    
    return lineView;
}; //可选

CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithCodeLength:4];
boxInputView.customCellProperty = cellProperty;
[boxInputView loadAndPrepareViewWithBeginEdit:YES];

CRBoxInputCellProperty *cellProperty = [CRBoxInputCellProperty new];
cellProperty.securitySymbol = @"*"; //可选

CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithCodeLength:4];
boxInputView.ifNeedSecurity = YES; //必需（你可以在任何时候修改该属性，并且已经存在的文字会自动刷新。）
boxInputView.customCellProperty = cellProperty;
[boxInputView loadAndPrepareViewWithBeginEdit:NO];

_boxInputView.ifClearAllInBeginEditing = YES;
[_boxInputView reloadInputString:@"5678"];

CRBoxInputCellProperty *cellProperty = [CRBoxInputCellProperty new];
cellProperty.securityType = CRBoxSecurityCustomViewType; //必需
cellProperty.customSecurityViewBlock = ^UIView * _Nonnull{
    CRSecrectImageView *secrectImageView = [CRSecrectImageView new];
    secrectImageView.image = [UIImage imageNamed:@"smallLock"];
    secrectImageView.imageWidth = 23;
    secrectImageView.imageHeight = 27;
    
    return secrectImageView;
}; //必需

CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithCodeLength:4];
boxInputView.ifNeedSecurity = YES; //必需（你可以在任何时候修改该属性，并且已经存在的文字会自动刷新。）
boxInputView.customCellProperty = cellProperty;
[boxInputView loadAndPrepareViewWithBeginEdit:YES];

CRBoxInputCellProperty *cellProperty = [CRBoxInputCellProperty new];
cellProperty.securityType = CRBoxSecurityCustomViewType; //必需
cellProperty.customSecurityViewBlock = ^UIView * _Nonnull{
    UIView *customSecurityView = [UIView new];
    customSecurityView.backgroundColor = [UIColor clearColor];

    // circleView
    static CGFloat circleViewWidth = 20;
    UIView *circleView = [UIView new];
    circleView.backgroundColor = color_master;
    circleView.layer.cornerRadius = 4;
    [customSecurityView addSubview:circleView];
    [circleView mas_makeConstraints:^(MASConstraintMaker *make) {
        make.width.height.mas_equalTo(circleViewWidth);
        make.centerX.offset(0);
        make.centerY.offset(0);
    }];

    return customSecurityView;
}; //可选

CRBoxInputView *boxInputView = [[CRBoxInputView alloc] initWithCodeLength:4];
boxInputView.ifNeedSecurity = YES; //必需（你可以在任何时候修改该属性，并且已经存在的文字会自动刷新。）
boxInputView.customCellProperty = cellProperty;
[boxInputView loadAndPrepareViewWithBeginEdit:YES];

[boxInputView resetCodeLength:_boxInputView.codeLength+1 beginEdit:YES];

#pragma mark - UI
@property (assign, nonatomic) CGFloat borderWidth;
@property (copy, nonatomic) UIColor *cellBorderColorNormal;
@property (copy, nonatomic) UIColor *cellBorderColorSelected;
@property (copy, nonatomic) UIColor *__nullable cellBorderColorFilled;
@property (copy, nonatomic) UIColor *cellBgColorNormal;
@property (copy, nonatomic) UIColor *cellBgColorSelected;
@property (copy, nonatomic) UIColor *__nullable cellBgColorFilled;
@property (assign, nonatomic) CGFloat cornerRadius;

#pragma mark - cursor(光标)
@property (copy, nonatomic) UIColor *cellCursorColor;
@property (assign, nonatomic) CGFloat cellCursorWidth;
@property (assign, nonatomic) CGFloat cellCursorHeight;

#pragma mark - line
@property (assign, nonatomic) BOOL showLine;

#pragma mark - label
@property (copy, nonatomic) UIFont *cellFont;
@property (copy, nonatomic) UIColor *cellTextColor;

#pragma mark - Security
@property (assign, nonatomic) BOOL ifShowSecurity;
@property (copy, nonatomic) NSString *securitySymbol;
@property (assign, nonatomic) CRBoxSecurityType securityType;

#pragma mark - Placeholder
@property (copy, nonatomic) UIColor *cellPlaceholderTextColor;
@property (copy, nonatomic) UIFont *cellPlaceholderFont;

#pragma mark - Block
/**
自定义密文View回调
*/
@property (copy, nonatomic) CustomSecurityViewBlock customSecurityViewBlock;
/**
自定义下划线回调
*/
@property (copy, nonatomic) CustomLineViewBlock customLineViewBlock;
/**
自定义阴影回调
*/
@property (copy, nonatomic) ConfigCellShadowBlock __nullable configCellShadowBlock;

@property (assign, nonatomic) BOOL ifNeedEqualGap;
@property (assign, nonatomic) NSInteger itemNum;

// Security
@property (assign, nonatomic) BOOL ifNeedSecurity;
@property (assign, nonatomic) CGFloat securityDelay;

@property (assign, nonatomic) BOOL ifNeedCursor;
@property (nonatomic, assign) NSInteger codeLength;
@property (assign, nonatomic) UIKeyboardType keyBoardType;
@property (null_unspecified,nonatomic,copy) UITextContentType textContentType NS_AVAILABLE_IOS(10_0);
@property (strong, nonatomic) NSString  * _Nullable placeholderText;
@property (assign, nonatomic) BOOL ifClearAllInBeginEditing;

@property (copy, nonatomic) TextDidChangeblock _Nullable textDidChangeblock;
@property (copy, nonatomic) TextEditStatusChangeblock _Nullable textEditStatusChangeblock;
@property (strong, nonatomic) CRBoxFlowLayout * _Nullable boxFlowLayout;
@property (strong, nonatomic) CRBoxInputCellProperty * _Nullable customCellProperty;
@property (strong, nonatomic, readonly) NSString  * _Nullable textValue;
@property (strong, nonatomic) UIView * _Nullable inputAccessoryView;

- (void)loadAndPrepareView;
- (void)loadAndPrepareViewWithBeginEdit:(BOOL)beginEdit;
- (void)reloadInputString:(NSString *_Nullable)value; // 重载输入的数据（用来设置预设数据）
- (void)clearAll;
- (void)clearAllWithBeginEdit:(BOOL)beginEdit;

- (UICollectionView *_Nullable)mainCollectionView;
- (void)quickSetSecuritySymbol:(NSString *_Nullable)securitySymbol;

// 你可以在继承的子类中调用父类方法
// You can inherit and call super
- (void)initDefaultValue;
- (UICollectionViewCell *_Nullable)customCollectionView:(UICollectionView *_Nullable)collectionView cellForItemAtIndexPath:(NSIndexPath *_Nullable)indexPath;

// 你可以在继承的子类中重写父类方法
// You can inherit and rewrite
- (UIView *)createCustomSecurityView;

@property (strong, nonatomic) UIView    *lineView;

@property (copy, nonatomic) UIColor *underlineColorNormal;
@property (copy, nonatomic) UIColor *underlineColorSelected;
@property (copy, nonatomic) UIColor *underlineColorFilled;