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下拉框选择效果的实现原理2

作者：佚名 IOS开发编辑：admin 更新时间：2022-07-23

效果如下

原理：使用第三方XTSegmentControl作为上面选项卡的实现，而弹出视图则是滚动视图跟每一行里面的UIBUTTON结合打勾图标相结合的实现方式；源代码可以下载开源项目Coding.net里的任务模块；这边将分简单的贴出其主要的代码

1：首先是主页面的代码：

        // 添加滑块 分三组
        _one = @[@"全部讨论", @"我的讨论"];
        _two = [NSMutableArray arrayWithObjects:@"全部标签", nil];
        _three = @[@"最后评论排序", @"发布时间排序", @"热门排序"];
        _total = @[_one, _two, _three];
        
        //用于每一组每个的数字
        _oneNumber = [NSMutableArray arrayWithObjects:@0, @0, nil];
        _twoNumber = [NSMutableArray arrayWithObjects:@0, nil];
        _totalIndex = [NSMutableArray arrayWithObjects:@0, @0, @0, nil];
        __weak typeof(self) weakSelf = self;
        
        //选项卡的初始化
        self.mySegmentControl = [[XTSegmentControl alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, kMySegmentControl_Height)
                                                                  Items:@[_one[0], _two[0], _three[0]]
                                                               withIcon:YES
                                                          selectedBlock:^(NSInteger index) {
                                                              //选中哪一组
                                                              [weakSelf openList:index];
                                                          }];
        [self addSubview:self.mySegmentControl];

- (void)openList:(NSInteger)segmentIndex
{
    TopicListView *lView = (TopicListView *)[self viewWithTag:9898];
    
    //当前是否存在
    if (!lView) {
        // 不存在则显示
        _segIndex = segmentIndex;
        NSArray *lists = (NSArray *)_total[segmentIndex];
        CGRect rect = CGRectMake(0, kMySegmentControl_Height, kScreen_Width, self.frame.size.height - kMySegmentControl_Height);

        NSArray *nAry = nil;
        if (segmentIndex == 0) {
            nAry = _oneNumber;
        } else if (segmentIndex == 1 && [_totalIndex[0] integerValue] == 0) {
            nAry = _twoNumber;
        }
        __weak typeof(self) weakSelf = self;
        TopicListView *listView = [[TopicListView alloc]initWithFrame:rect
                                                                titles:lists
                                                               numbers:nAry
                                                          defaultIndex:[_totalIndex[segmentIndex] integerValue]
                                                         selectedBlock:^(NSInteger index) {
                                                             [weakSelf changeIndex:index withSegmentIndex:segmentIndex];
                                                         }
                                                             hideBlock:^() {
                                                             [weakSelf.mySegmentControl selectIndex:-1];
                                                         }];
        listView.tag = 9898;
        [self addSubview:listView];
        [listView showBtnView];
    } else if (_segIndex != segmentIndex) {
        // 说明前面已经显示 选中另外一个 另展示
        _segIndex = segmentIndex;
        
        NSArray *nAry = nil;
        
        //因为第三组是没有数字的
        //被选中第一个数字
        if (segmentIndex == 0) {
            nAry = _oneNumber;
        } else if (segmentIndex == 1 && [_totalIndex[0] integerValue] == 0) {
            //被选中第二个数字
            nAry = _twoNumber;
        }
        
        //获得是哪一组
        NSArray *lists = (NSArray *)_total[segmentIndex];
        __weak typeof(self) weakSelf = self;
        [lView changeWithTitles:lists
                        numbers:nAry
                   defaultIndex:[_totalIndex[segmentIndex] integerValue]
                  selectedBlock:^(NSInteger index) {
                       [weakSelf changeIndex:index withSegmentIndex:segmentIndex];
                   }
                      hideBlock:^() {
                          [weakSelf.mySegmentControl selectIndex:-1];
                      }];
    } else {
        // 隐藏
        [lView hideBtnView];
    }
}

其中openList为选中某一选项卡时，弹出相应的视图内容；

2：横向选项卡的主要内容：

- (void)initItemsWithTitleArray:(NSArray *)titleArray withIcon:(BOOL)isIcon
{
    _itemFrames = @[].mutableCopy;
    _items = @[].mutableCopy;
    float y = 0;
    float height = CGRectGetHeight(self.bounds);

    NSObject *obj = [titleArray firstObject];
    if ([obj isKindOfClass:[NSString class]]) {
        for (int i = 0; i < titleArray.count; i++) {
            float x = i > 0 ? CGRectGetMaxX([_itemFrames[i-1] CGRectValue]) : 0;
            float width = kScreen_Width/titleArray.count;
            CGRect rect = CGRectMake(x, y, width, height);
            [_itemFrames addObject:[NSValue valueWithCGRect:rect]];
        }
        
        for (int i = 0; i < titleArray.count; i++) {
            CGRect rect = [_itemFrames[i] CGRectValue];
            NSString *title = titleArray[i];
            XTSegmentControlItem *item = [[XTSegmentControlItem alloc] initWithFrame:rect title:title type: isIcon ?
                                                                                   XTSegmentControlItemTypeTitleAndIcon : XTSegmentControlItemTypeTitle];
            if (!isIcon && i == 0) {
                [item setSelected:YES];
            }
            [_items addObject:item];
            [_contentView addSubview:item];
        }

    } else if ([obj isKindOfClass:[PRojectMember class]] || [obj isKindOfClass:[Project class]]) {
//        全部任务的frame
        CGRect firstFrame = CGRectMake(5.0, 0, XTSegmentControlIconWidth, height);
        [_itemFrames addObject:[NSValue valueWithCGRect:firstFrame]];

        for (int i = 1; i < titleArray.count; i++) {
            float x = CGRectGetMaxX([_itemFrames[i-1] CGRectValue]);
            CGRect rect = CGRectMake(x, y, XTSegmentControlIconWidth, height);
            [_itemFrames addObject:[NSValue valueWithCGRect:rect]];
        }
        
        for (int i = 0; i < titleArray.count; i++) {
            CGRect rect = [_itemFrames[i] CGRectValue];
            XTSegmentControlItem *item;
            if ([obj isKindOfClass:[ProjectMember class]]) {
                ProjectMember *title = titleArray[i];
                item = [[XTSegmentControlItem alloc] initWithFrame:rect title:title.user.avatar type:XTSegmentControlItemTypeIconUrl];
            } else if ([obj isKindOfClass:[Project class]]){
                Project *title = titleArray[i];
                item = [[XTSegmentControlItem alloc] initWithFrame:rect title:title.icon type:XTSegmentControlItemTypeIconUrl];
            }
            if (item) {
                if (i == 0) {
                    [item setSelected:YES];
                }
                [_items addObject:item];
                [_contentView addSubview:item];
            }
        }
    }
    
    [_contentView setContentSize:CGSizeMake(CGRectGetMaxX([[_itemFrames lastObject] CGRectValue]), CGRectGetHeight(self.bounds))];
    self.currentIndex = 0;
    [self selectIndex:0];
    if (isIcon) {
        //是否有右边的那条线
        [self selectIndex:-1];
        for (int i=1; i<_itemFrames.count; i++) {
            CGRect rect = [_itemFrames[i] CGRectValue];
            
            UIView *lineView  = [[UIView alloc] initWithFrame:CGRectMake(
                                                                         CGRectGetMinX(rect),
                                                                         (CGRectGetHeight(rect) - 14) * 0.5,
                                                                         1,
                                                                         14)];
            lineView.backgroundColor = [UIColor colorWithHexString:@"0xdddddd"];
            [self addSubview:lineView];
        }
    }
}

- (void)addRedLine
{
    if (!_lineView) {
        CGRect rect = [_itemFrames[0] CGRectValue];
        _lineView = [[UIView alloc] initWithFrame:CGRectMake(
                                                             CGRectGetMinX(rect),
                                                             CGRectGetHeight(rect) - XTSegmentControlLineHeight,
                                                             CGRectGetWidth(rect) - 2 * XTSegmentControlHspace,
                                                             XTSegmentControlLineHeight)];
        _lineView.backgroundColor = [UIColor colorWithHexString:@"0x3bbd79"];
        [_contentView addSubview:_lineView];
       
        UIView *bottomLineView = [[UIView alloc] initWithFrame:CGRectMake(0, CGRectGetHeight(rect)-0.5, CGRectGetWidth(self.bounds), 0.5)];
        bottomLineView.backgroundColor = [UIColor colorWithHexString:@"0xc8c7cc"];
        [self addSubview:bottomLineView];
    }
}

- (void)setTitle:(NSString *)title withIndex:(NSInteger)index
{
    XTSegmentControlItem *curItem = [_items objectAtIndex:index];
    [curItem resetTitle:title];
}

3：横向选项卡中每一个选项的代码如下：

#define XTSegmentControlItemFont (15)

#define XTSegmentControlHspace (0)

#define XTSegmentControlLineHeight (2)

#define XTSegmentControlAnimationTime (0.3)

#define XTSegmentControlIconWidth (50.0)

#define XTSegmentControlIconSpace (4)

typedef NS_ENUM(NSInteger, XTSegmentControlItemType)
{
    XTSegmentControlItemTypeTitle = 0,
    XTSegmentControlItemTypeIconUrl,
    XTSegmentControlItemTypeTitleAndIcon,
};

@interface XTSegmentControlItem : UIView

@property (nonatomic, strong) UILabel *titleLabel;
@property (nonatomic, strong) UIImageView *titleIconView;
@property (nonatomic, assign) XTSegmentControlItemType type;

- (void)setSelected:(BOOL)selected;
@end

@implementation XTSegmentControlItem

- (id)initWithFrame:(CGRect)frame title:(NSString *)title type:(XTSegmentControlItemType)type
{
    if (self = [super initWithFrame:frame]) {
        self.backgroundColor = [UIColor clearColor];
        _type = type;
        switch (_type) {
            case XTSegmentControlItemTypeIconUrl:
            {
                _titleIconView = [[UIImageView alloc] initWithFrame:CGRectMake((CGRectGetWidth(self.bounds)-40)/2, (CGRectGetHeight(self.bounds)-40)/2, 40, 40)];
                [_titleIconView doCircleFrame];
                if (title) {
                    [_titleIconView sd_setImageWithURL:[title urlImageWithCodePathResizeToView:_titleIconView] placeholderImage:kPlaceholderMonkeyRoundView(_titleIconView)];
                }else{
                    [_titleIconView setImage:[UIImage imageNamed:@"tasks_all"]];
                }
                [self addSubview:_titleIconView];
            }
                break;
            case XTSegmentControlItemTypeTitleAndIcon:
            {
                _titleLabel = ({
                    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(self.bounds), CGRectGetHeight(self.bounds))];
                    
                    label.font = [UIFont systemFontOfSize:(kDevice_Is_iphone6Plus) ? (XTSegmentControlItemFont + 1) : (kDevice_Is_iPhone6 ? XTSegmentControlItemFont : XTSegmentControlItemFont - 2)];
                    label.textAlignment = NSTextAlignmentCenter;
                    label.text = title;
                    label.textColor = [UIColor colorWithHexString:@"0x222222"];
                    label.backgroundColor = [UIColor clearColor];
                    [label sizeToFit];
                    if (label.frame.size.width > CGRectGetWidth(self.bounds) - XTSegmentControlIconSpace - 10) {
                        CGRect frame = label.frame;
                        frame.size.width = CGRectGetWidth(self.bounds) - XTSegmentControlIconSpace - 10;
                        label.frame = frame;
                    }
                    label.center = CGPointMake((CGRectGetWidth(self.bounds) - XTSegmentControlIconSpace - 10) * 0.5, CGRectGetHeight(self.bounds) * 0.5);
                    label;
                });
                
                [self addSubview:_titleLabel];
                
                CGFloat x = CGRectGetMaxX(_titleLabel.frame) + XTSegmentControlIconSpace;
                _titleIconView = [[UIImageView alloc] initWithFrame:CGRectMake(x, (CGRectGetHeight(self.bounds) - 10) * 0.5, 10, 10)];
                [_titleIconView setImage:[UIImage imageNamed:@"tag_list_up"]];
                [self addSubview:_titleIconView];
            }
                break;
            case XTSegmentControlItemTypeTitle:
            default:
            {
                _titleLabel = ({
                    UILabel *label = [[UILabel alloc] initWithFrame:CGRectMake(XTSegmentControlHspace, 0, CGRectGetWidth(self.bounds) - 2 * XTSegmentControlHspace, CGRectGetHeight(self.bounds))];
                    label.font = [UIFont systemFontOfSize:XTSegmentControlItemFont];
                    label.textAlignment = NSTextAlignmentCenter;
                    label.text = title;
                    label.textColor = [UIColor colorWithHexString:@"0x222222"];
                    label.backgroundColor = [UIColor clearColor];
                    label;
                });
                
                
                [self addSubview:_titleLabel];
            }
                break;
        }
    }
    return self;
}

- (void)setSelected:(BOOL)selected
{
    switch (_type) {
        case XTSegmentControlItemTypeIconUrl:
        {
        }
            break;
        case XTSegmentControlItemTypeTitleAndIcon:
        {
            if (_titleLabel) {
                [_titleLabel setTextColor:(selected ? [UIColor colorWithHexString:@"0x3bbd79"]:[UIColor colorWithHexString:@"0x222222"])];
            }
            if (_titleIconView) {
                [_titleIconView setImage:[UIImage imageNamed: selected ? @"tag_list_down" : @"tag_list_up"]];
            }
        }
            break;
        default:
        {
            if (_titleLabel) {
                [_titleLabel setTextColor:(selected ? [UIColor colorWithHexString:@"0x3bbd79"]:[UIColor colorWithHexString:@"0x222222"])];
            }
        }
            break;
    }
}

- (void)resetTitle:(NSString *)title
{
    if (_titleLabel) {
        _titleLabel.text = title;
    }
    if (_type == XTSegmentControlItemTypeTitleAndIcon) {
        [_titleLabel sizeToFit];
        if (_titleLabel.frame.size.width > CGRectGetWidth(self.bounds) - XTSegmentControlIconSpace - 10) {
            CGRect frame = _titleLabel.frame;
            frame.size.width = CGRectGetWidth(self.bounds) - XTSegmentControlIconSpace - 10;
            _titleLabel.frame = frame;
        }
        _titleLabel.center = CGPointMake((CGRectGetWidth(self.bounds) - XTSegmentControlIconSpace - 10) * 0.5, CGRectGetHeight(self.bounds) * 0.5);
    
        CGRect frame = _titleIconView.frame;
        frame.origin.x = CGRectGetMaxX(_titleLabel.frame) + XTSegmentControlIconSpace;
        _titleIconView.frame = frame;
    }
}

@end

注意：这边创建的选项的布局，及选中时做出来的效果变化

4：弹出视图的内容TopicListView

#import <UIKit/UIKit.h>

typedef void(^TopicListViewBlock)(NSInteger index);
typedef void(^TopicListViewHideBlock)();

@interface TopicListView : UIView

- (id)initWithFrame:(CGRect)frame
             titles:(NSArray *)titles
            numbers:(NSArray *)numbers
       defaultIndex:(NSInteger)index
      selectedBlock:(TopicListViewBlock)selectedHandle
          hideBlock:(TopicListViewHideBlock)hideHandle;
- (void)changeWithTitles:(NSArray *)titles
                 numbers:(NSArray *)numbers
            defaultIndex:(NSInteger)index
           selectedBlock:(TopicListViewBlock)selectedHandle
               hideBlock:(TopicListViewHideBlock)hideHandle;

- (void)showBtnView;
- (void)hideBtnView;

@end

#import "TopicListView.h"
#import "TopicListButton.h"

@interface TopicListView ()
{
    UIScrollView *_baseView;
    UIButton *_baseBtn;
    NSInteger _count;
    NSInteger _index;
}

@property (nonatomic , copy) TopicListViewBlock block;
@property (nonatomic , copy) TopicListViewHideBlock hideBlock;

@end

@implementation TopicListView

- (id)initWithFrame:(CGRect)frame
             titles:(NSArray *)titles
            numbers:(NSArray *)numbers
       defaultIndex:(NSInteger)index
      selectedBlock:(TopicListViewBlock)selectedHandle
          hideBlock:(TopicListViewHideBlock)hideHandle
{
    self = [super initWithFrame:frame];
    if (self) {
        self.backgroundColor = [UIColor colorWithRed:0 green:0 blue:0 alpha:0.4];
        //回调事件的赋值
        self.block = selectedHandle;
        self.hideBlock = hideHandle;
        self.clipsToBounds = YES;
        
        //—_baseBtn是产生后面的背景阴影
        _baseBtn = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, self.frame.size.height)];
        _baseBtn.backgroundColor = [UIColor clearColor];
        [_baseBtn addTarget:self action:@selector(baseBtnClick) forControlEvents:UIControlEventTouchUpInside];
        [self addSubview:_baseBtn];
        
        _index = index;
        _count = titles.count;
        CGFloat h = _count * kMySegmentControl_Height;
        CGFloat sH = h;
        if (h + kMySegmentControl_Height > self.frame.size.height) {
            sH = self.frame.size.height - kMySegmentControl_Height;
        }
        //_baseView则是下拉的列表
        _baseView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, -sH, kScreen_Width, sH)];
        [self addSubview:_baseView];
        _baseView.contentSize = CGSizeMake(kScreen_Width, h);
        _baseView.bounces = FALSE;

        //btnView则是在滚动视图_baseView里面，用于存放按键的容器
        UIView *btnView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, h)];
        btnView.backgroundColor = [UIColor whiteColor];
        [_baseView addSubview:btnView];
        
        //遍历产生按键，并判断是否被选择
        for (int i=0; i<titles.count; i++) {
            NSString *title = titles[i];
            TopicListButton *btn;
            if (numbers) {
                btn = [TopicListButton buttonWithTitle:title andNumber:[numbers[i] integerValue]];
            } else {
                btn = [TopicListButton buttonWithTitle:title];
            }
            CGRect frame = btn.frame;
            frame.origin.y = i * kMySegmentControl_Height;
            btn.frame = frame;
            btn.tag = 1000 + i;
            [btn setIconHide:(_index == i ? FALSE : TRUE)];
            [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
            [btnView addSubview:btn];
        }
    }
    return self;
}

- (void)changeWithTitles:(NSArray *)titles
                 numbers:(NSArray *)numbers
            defaultIndex:(NSInteger)index
           selectedBlock:(TopicListViewBlock)selectedHandle
               hideBlock:(TopicListViewHideBlock)hideHandle
{
    self.block = selectedHandle;
    self.hideBlock = hideHandle;
   
    CGRect frame = _baseView.frame;
    frame.origin.y = -frame.size.height;
    [UIView animateWithDuration:0.2 delay:0.0 options:UIViewAnimationOptionCurveLinear animations:^{
        _baseView.frame = frame;
    } completion:^(BOOL finished) {
        [_baseView removeFromSuperview];
        
        _index = index;
        _count = titles.count;
        CGFloat h = _count * kMySegmentControl_Height;
        CGFloat sH = h;
        if (h + kMySegmentControl_Height > self.frame.size.height) {
            sH = self.frame.size.height - kMySegmentControl_Height;
        }
        _baseView = [[UIScrollView alloc] initWithFrame:CGRectMake(0, -sH, kScreen_Width, sH)];
        [self addSubview:_baseView];
        _baseView.contentSize = CGSizeMake(kScreen_Width, h);
        _baseView.bounces = FALSE;
        
        UIView *btnView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, h)];
        btnView.backgroundColor = [UIColor whiteColor];
        [_baseView addSubview:btnView];
        
        for (int i=0; i<titles.count; i++) {
            NSString *title = titles[i];
            TopicListButton *btn;
            if (numbers) {
                btn = [TopicListButton buttonWithTitle:title andNumber:[numbers[i] integerValue]];
            } else {
                btn = [TopicListButton buttonWithTitle:title];
            }
            CGRect frame = btn.frame;
            frame.origin.y = i * kMySegmentControl_Height;
            btn.frame = frame;
            btn.tag = 1000 + i;
            [btn setIconHide:(_index == i ? FALSE : TRUE)];
            [btn addTarget:self action:@selector(btnClick:) forControlEvents:UIControlEventTouchUpInside];
           [btnView addSubview:btn];
        }
        
        [self showBtnView];
    }];
}
//显示下拉列表
- (void)showBtnView
{
    CGRect frame = _baseView.frame;
    frame.origin.y = 0;
    [UIView animateWithDuration:0.3 animations:^{
        _baseView.frame = frame;
    } completion:^(BOOL finished) {
    }];
}

//隐藏回缩事件
- (void)hideBtnView
{
    CGRect frame = _baseView.frame;
    frame.origin.y = -frame.size.height;
    [UIView animateWithDuration:0.3 delay:0.0 options:UIViewAnimationOptionCurveLinear animations:^{
        _baseView.frame = frame;
    } completion:^(BOOL finished) {
        if (self.hideBlock) {
            self.hideBlock();
        }
        [UIView animateWithDuration:0.2 animations:^{
            self.alpha = 0;
        } completion:^(BOOL finished) {
            [self removeFromSuperview];
        }];
    }];
}

- (void)baseBtnClick
{
    [self hideBtnView];
}

//按键响应的事件 用TAG进行遍历选取 更新选中跟不选中的状态
- (void)btnClick:(TopicListButton *)sender
{
    //用TAG进行遍历选取 更新选中跟不选中的状态
    for (int i=1000; i<_count + 1000; i++) {
        TopicListButton *btn = (TopicListButton *)[_baseView viewWithTag:i];
        [btn setIconHide:(sender.tag == i ? FALSE : TRUE)];
    }
    //如果当前被选中的跟前面的索引值不一样说明已经发生变化 则回传回去
    if (_index!=sender.tag - 1000 && self.block) {
        self.block(sender.tag - 1000);
    }
    //隐藏下拉列表
    [self hideBtnView];
}

@end

这边的代码是弹出窗的主要实现代码，以后其它功能也可以参考，包括对视图的显示跟隐藏，按键的增加跟事件创建等，背景视图的创建；

5：弹出项的TopicListButton主要代码

#import <UIKit/UIKit.h>

@interface TopicListButton : UIButton

+ (instancetype)buttonWithTitle:(NSString *)title andNumber:(NSInteger)number;
+ (instancetype)buttonWithTitle:(NSString *)title;

- (void)setIconHide:(BOOL)hide;

@end

#import "TopicListButton.h"

@interface TopicListButton ()
{
    UILabel *_titleLbl;
    UIImageView *_iconImg;
}
@end

@implementation TopicListButton

- (instancetype)initWithFrame:(CGRect)frame
{
    self = [super initWithFrame:frame];
    if (self) {
        //左边的文字
        _titleLbl = [[UILabel alloc] initWithFrame:CGRectMake(kPaddingLeftWidth, 0, kScreen_Width - kPaddingLeftWidth - 20, kMySegmentControl_Height)];
        _titleLbl.font = [UIFont systemFontOfSize:16];
        _titleLbl.textColor = [UIColor colorWithHexString:@"0x666666"];
        [self addSubview:_titleLbl];
        
        //右边的打勾图片
        _iconImg = [[UIImageView alloc] initWithFrame:CGRectMake(kScreen_Width - kPaddingLeftWidth - 18, (kMySegmentControl_Height - 18) * 0.5, 18, 18)];
        [_iconImg setImage:[UIImage imageNamed:@"tag_list_s"]];
        [self addSubview:_iconImg];
        
        //下划线的实现
        UIView *bottomLineView = [[UIView alloc] initWithFrame:CGRectMake(kPaddingLeftWidth, kMySegmentControl_Height - 0.6, kScreen_Width - kPaddingLeftWidth, 0.6)];
        bottomLineView.backgroundColor = [UIColor colorWithHexString:@"0xdddddd"];
        [self addSubview:bottomLineView];
    }
    return self;
}

//此方法是用于实现带有数字
+ (instancetype)buttonWithTitle:(NSString *)title andNumber:(NSInteger)number
{
    TopicListButton *button = [[TopicListButton alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, kMySegmentControl_Height)];
    [button setTitleLbl:[NSString stringWithFormat:@"%@（%ld）", title, (long)number]];
    return button;
}

//此方法用于实现不带数字
+ (instancetype)buttonWithTitle:(NSString *)title
{
    TopicListButton *button = [[TopicListButton alloc] initWithFrame:CGRectMake(0, 0, kScreen_Width, kMySegmentControl_Height)];
    [button setTitleLbl:title];
    return button;
}

- (void)setTitleLbl:(NSString *)title
{
    _titleLbl.text = title;
}

//对于打勾图片是否显示进行控制
- (void)setIconHide:(BOOL)hide
{
    _iconImg.hidden = hide;
}

@end

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