两个标题的跑马灯第一篇,类似支付宝口碑的封装

封装一个view 有上下label 代理回调

@protocol ContentViewDegate 

- (void)UpLabelClick:(NSString *)UpLabelTitle;
- (void)DownLabelClick:(NSString *)DownLabelTitle;

@end

@interface ContentView : UIView

//上label赋值
- (void)settingUpLabel:(NSString *)UpTitle;

//下label赋值
- (void)settingDownLabel:(NSString *)DownTitle;
//代理
@property (nonatomic ,weak)id delegate;

#import "Masonry.h"
@interface ContentView ()
@property (nonatomic ,strong)UILabel *showLabelUp; //上面label
@property (nonatomic ,strong)UILabel *showLabelDown; //下面label
@end


@implementation ContentView


- (instancetype)initWithFrame:(CGRect)frame
{
    if (self = [super initWithFrame:frame]) {
        [self setUpUI];
        
        self.userInteractionEnabled =YES;
    }
    return self;
}


- (void)setUpUI
{
    [self addSubview:self.showLabelUp];
    
    [self.showLabelUp mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self);
        make.right.equalTo(self);
        make.top.equalTo(self).offset(10);
        make.height.mas_equalTo(20);
    }];
    
    UITapGestureRecognizer *tap1 = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(UpLabelClick)];
    [self.showLabelUp addGestureRecognizer:tap1];
    
    
    [self addSubview:self.showLabelDown];
    
    [self.showLabelDown mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.equalTo(self);
        make.right.equalTo(self);
        make.top.equalTo(self.showLabelUp.mas_bottom).offset(10);
        make.height.mas_equalTo(20);
    }];
    
    UITapGestureRecognizer *tap2 = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(DownLabelClick)];
    [self.showLabelDown addGestureRecognizer:tap2];
}

//上label赋值
- (void)settingUpLabel:(NSString *)UpTitle
{
    self.showLabelUp.text = UpTitle;
    
}

//下label赋值
- (void)settingDownLabel:(NSString *)DownTitle
{
    
    self.showLabelDown.text = DownTitle;
}


- (UILabel *)showLabelUp
{
    if (!_showLabelUp) {
        
        _showLabelUp = [[UILabel alloc]init];
        _showLabelUp.textColor = [UIColor blackColor];
        _showLabelUp.font = [UIFont systemFontOfSize:13];
        _showLabelUp.backgroundColor = [UIColor blueColor];
         _showLabelUp.userInteractionEnabled =YES;
    }

    return _showLabelUp;
}

- (UILabel *)showLabelDown
{
    if (!_showLabelDown) {
        
        _showLabelDown = [[UILabel alloc]init];
        _showLabelDown.textColor = [UIColor blackColor];
        _showLabelDown.font = [UIFont systemFontOfSize:13];
        _showLabelDown.backgroundColor = [UIColor redColor];
        _showLabelDown.userInteractionEnabled =YES;
    
    }
    
    return _showLabelDown;
}


#pragma mark -点击方法
- (void)UpLabelClick
{
    if (_delegate && [_delegate respondsToSelector:@selector(UpLabelClick:)]) {
        
        [_delegate UpLabelClick:self.showLabelUp.text];
    }
}

- (void)DownLabelClick
{
    
    if (_delegate && [_delegate respondsToSelector:@selector(DownLabelClick:)]) {
        
        [_delegate DownLabelClick:self.showLabelDown.text];
    }
}