ios 淘宝评论详情、朋友圈布局masony实现

最近做项目，用到了类似于淘宝的朋友圈的功能，然后自己抽出了一个小demo，与大家分享

介绍：用的是masony布局的cell这样的话，文本，以及图片可以自适应，不用人工再去计算高度，很方便。

注：该demo不涉及交互回复评论哦，只有展示的功能

给大家看一下图片效果：

 

下边贴上核心代码：

#import "AC_FriendCircleCell.h"

@interface AC_FriendCircleCell()
@property (nonatomic,strong)UIImageView *headIMG;
@property (nonatomic,strong)UILabel *nameL;
@property (nonatomic,strong)UILabel *timeL;
@property (nonatomic,strong)UILabel *introL;
@property (nonatomic,strong)UIView *imgs;
@property (nonatomic,strong)UIView *replyView;
@property (nonatomic,strong)UILabel *replayL;
@property (nonatomic,strong)UILabel *replyContent;


//重要！！！！
@property (nonatomic,strong)id bottimView;//记录最下边的一个view
@property MASConstraint *midMasContraint;//记录暂存中间可能是最后一个的约束、


@end

　　

初始化：

#pragma mark - 创建页面
- (void)createUI{
    _headIMG = [[UIImageView alloc]init];
    _timeL = [[UILabel alloc]init];
    _nameL = [[UILabel alloc]init];
    
    _introL = [[UILabel alloc]init];
    _introL.numberOfLines =  0;
    
    _imgs = [[UIView alloc]init];
    
    _replyView = [[UIView alloc]init];
    _replyView.backgroundColor = RGBColor(240, 240, 240);
    _replyView.clipsToBounds = YES;
    _replayL = [[UILabel alloc]init];
    _replayL.text = @"回复内容:";
    _replayL.textColor = RGBColor(110, 110, 110);
    _replyContent = [[UILabel alloc]init];
    _replyContent.numberOfLines = 0;
    [self.contentView addSubview:_headIMG];
    [self.contentView addSubview:_timeL];
    [self.contentView addSubview:_nameL];
    
    [self.contentView addSubview:_introL];
    
    [self.contentView addSubview:_imgs];
    
    [self.contentView addSubview:_replyView];
    [_replyView addSubview:_replayL];
    [_replyView addSubview:_replyContent];
    

    //设置约束 给不需要变化的部分设置约束
    [_headIMG mas_makeConstraints:^(MASConstraintMaker *make) {
        make.top.mas_offset(15).priorityHigh();
        make.left.mas_offset(15);
        make.height.mas_offset(50);
        make.width.mas_offset(50);
    }];
    _headIMG.layer.cornerRadius = 25;
    _headIMG.layer.masksToBounds = YES;
    
    [_nameL  mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.mas_equalTo(self.headIMG.mas_right).offset(15);
        make.right.mas_offset(-15);
        make.height.mas_offset(50/2);
        make.top.mas_equalTo(self.headIMG.mas_top).priorityHigh();
    }];
    
    [_timeL mas_makeConstraints:^(MASConstraintMaker *make) {
        make.left.mas_equalTo(self.nameL.mas_left);
        make.right.mas_equalTo(self.nameL.mas_right);
        make.height.mas_equalTo(self.nameL.mas_height);
        make.top.mas_equalTo(self.nameL.mas_bottom);
    }];
    
    
}

　　设置内容并更新masoney

 //对最后一个控件进行设置约束
    [self.midMasContraint uninstall];
    
    if (self.bottimView == self.introL) {
        [self.introL mas_updateConstraints:^(MASConstraintMaker *make) {
            self.midMasContraint = make.bottom.mas_offset(-15);
        }];
    }else if (self.bottimView  == self.imgs) {
        [self.imgs mas_updateConstraints:^(MASConstraintMaker *make) {
            self.midMasContraint = make.bottom.mas_offset(-15);
        }];
    }else if (self.bottimView  == self.replyView) {
        [self.replyView mas_updateConstraints:^(MASConstraintMaker *make) {
            self.midMasContraint = make.bottom.mas_offset(-15);
        }];
    }

对指定的view进行更新

//设置评论内容
- (void)setIntro:(UIView*)lastView andContent:(NSString*)content{
    [_introL mas_remakeConstraints:^(MASConstraintMaker *make) {
        make.left.mas_equalTo(self.headIMG.mas_left);
        make.right.mas_equalTo(self.nameL.mas_right);
        make.top.mas_equalTo(lastView.mas_bottom).offset(15).priorityHigh();
    }];
    
    _bottimView = _introL;
}

如法炮制，都加上便可以实现上述效果了。