使用第三方《UITableView+FDTemplateLayoutCell》自动计算UITableViewCell高度（Masonry约束）

直接上代码：

1：先自定义cell

.h文件中

#import <UIKit/UIKit.h>
#import "LBDNewMsgListModel.h"
#import "MLEmojiLabel.h"

@interface LBDMsgCenterCell : UITableViewCell<MLEmojiLabelDelegate, UIGestureRecognizerDelegate>

@property (nonatomic, strong) UILabel *msgDateLbl;
@property (nonatomic, strong) UIView *bgView;
@property (nonatomic, strong) UIView *topLineView;
@property (nonatomic, strong) UIImageView *msgImgView;
@property (nonatomic, strong) UILabel *titleLbl;
@property (nonatomic, strong) UILabel *orderNum;
@property (nonatomic, strong) UIView *lineView;
@property (nonatomic, strong) UILabel *lookLbl;
@property (nonatomic, strong) MLEmojiLabel *contentLbl;

@property (nonatomic, strong) LBDNewMsgListModel *model;

@end

.m文件中

#import "LBDMsgCenterCell.h"
#import "LBDNewMsgListModel.h"
#import "NSDate+Extend.h"

@implementation LBDMsgCenterCell

- (void)awakeFromNib {
    [super awakeFromNib];
    // Initialization code
}

- (instancetype)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier {

    if (self = [super initWithStyle:style reuseIdentifier:reuseIdentifier]) {

        [self createView];
        [self setSubviews];
    }
    return self;
}

#pragma make 创建子控件

- (void)createView
{

    _msgDateLbl = [[UILabel alloc] init];
    _msgDateLbl.font = [UIFont systemFontOfSize:];
    _msgDateLbl.textColor = [UIColor colorWithHex:@""];
    _msgDateLbl.textAlignment = NSTextAlignmentCenter;
    [self.contentView addSubview:_msgDateLbl];

    _bgView = [[UIView alloc] init];
    _bgView.backgroundColor = [UIColor whiteColor];
    _bgView.layer.masksToBounds = YES;
    _bgView.layer.cornerRadius = ;
    [self.contentView addSubview:_bgView];

    _msgImgView = [[UIImageView alloc] init];
    _msgImgView.hidden = YES;
    _msgImgView.contentMode = UIViewContentModeScaleToFill;
    [_bgView addSubview:_msgImgView];

    _topLineView = [[UIView alloc] init];
    _topLineView.hidden = YES;
    [_bgView addSubview:_topLineView];

    _titleLbl = [[UILabel alloc] init];
    _titleLbl.font = [UIFont systemFontOfSize:];
    _titleLbl.numberOfLines = ;
    _titleLbl.textColor = [UIColor colorWithHex:@""];
    [_bgView addSubview:_titleLbl];

    _lookLbl = [[UILabel alloc] init];
    _lookLbl.textAlignment = NSTextAlignmentRight;;
    _lookLbl.text = @"立即查看";
    _lookLbl.font = [UIFont systemFontOfSize:];
    [_bgView addSubview:_lookLbl];

    _lineView = [[UIView alloc] init];
    _lineView.backgroundColor = [UIColor unclickableColor];
    [_bgView addSubview:_lineView];

    [_bgView addSubview:self.contentLbl];
}

- (void)setModel:(LBDNewMsgListModel *)model
{
    NSDateFormatter *formater = [[NSDateFormatter alloc] init];
    formater.dateFormat = @"yyyy/MM/dd HH:mm";
    NSDate *sendDate  = [formater dateFromString:model.createdAt];
    if ([sendDate isToday]) {

        _msgDateLbl.text = [NSString stringWithFormat:@"今天 %@", [model.createdAt timestampTransformDateToType:@"HH:mm"]];
    } else if ([sendDate isYesToday]) {

        _msgDateLbl.text = [NSString stringWithFormat:@"昨天 %@", [model.createdAt timestampTransformDateToType:@"HH:mm"]];
    } else {

        _msgDateLbl.text = [model.createdAt timestampTransformDateToType:@"yyyy/MM/dd HH:mm"];
    }

    _titleLbl.text = model.title;
    self.contentLbl.text = model.content;

    [_bgView mas_remakeConstraints:^(MASConstraintMaker *make) {

        make.top.mas_equalTo(_msgDateLbl.mas_bottom);
        make.left.mas_equalTo(self.contentView.mas_left).offset();
        make.right.mas_equalTo(self.contentView.mas_right).offset(-);
        make.bottom.mas_equalTo(self.contentView.mas_bottom);
    }];

    if ([model.colorType isEqualToString:@""]) {

        _topLineView.hidden = NO;
        _msgImgView.hidden = YES;
        [_msgImgView sd_setImageWithURL:nil];
        _topLineView.backgroundColor = [UIColor redColor];

        [_topLineView mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left);
            make.top.mas_equalTo(_bgView.mas_top);
            make.right.mas_equalTo(_bgView.mas_right);
            make.height.mas_equalTo();
        }];

        [_titleLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left).offset();
            make.right.mas_equalTo(_bgView.mas_right).offset(-);
            make.top.mas_equalTo(_topLineView.mas_bottom).offset();
        }];

        [self.contentLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_titleLbl.mas_left);
            make.right.mas_equalTo(_titleLbl.mas_right);
            make.top.mas_equalTo(_titleLbl.mas_bottom).offset();
        }];

    } else if ([model.colorType isEqualToString:@""]) {

        _topLineView.hidden = NO;
        _msgImgView.hidden = YES;
        [_msgImgView sd_setImageWithURL:nil];
        _topLineView.backgroundColor = [UIColor colorWithHex:@"00ade5"];

        [_topLineView mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left);
            make.top.mas_equalTo(_bgView.mas_top);
            make.right.mas_equalTo(_bgView.mas_right);
            make.height.mas_equalTo();
        }];

        [_titleLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left).offset();
            make.right.mas_equalTo(_bgView.mas_right).offset(-);
            make.top.mas_equalTo(_topLineView.mas_bottom).offset();
        }];

        [self.contentLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_titleLbl.mas_left);
            make.right.mas_equalTo(_titleLbl.mas_right);
            make.top.mas_equalTo(_titleLbl.mas_bottom).offset();
        }];

    } else if ([model.colorType isEqualToString:@""]) {

        _topLineView.hidden = YES;
        _msgImgView.hidden = NO;
        [_topLineView mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left);
            make.top.mas_equalTo(_msgDateLbl.mas_bottom);
            make.right.mas_equalTo(_bgView.mas_right);
            make.height.mas_equalTo();
        }];

        [_msgImgView sd_setImageWithURL:[NSURL URLWithString:model.activityImg] placeholderImage:[UIImage imageNamed:@"PersonalInformationImagePlaceholder"]];

        [_msgImgView mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left);
            make.right.mas_equalTo(_bgView.mas_right);
            make.top.mas_equalTo(_msgDateLbl.mas_bottom);
            make.height.mas_equalTo(SCREEN_WIDTH / 3.41);
        }];

        [_titleLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_bgView.mas_left).offset();
            make.right.mas_equalTo(_bgView.mas_right).offset(-);
            make.top.mas_equalTo(_msgImgView.mas_bottom).offset();
        }];

        [_contentLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(_titleLbl.mas_left);
            make.right.mas_equalTo(_titleLbl.mas_right);
            make.top.mas_equalTo(_titleLbl.mas_bottom).offset();
        }];

    }

    if ([model.jump isEqualToString:@""]) {

        [_lineView mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(self.contentLbl.mas_left);
            make.right.mas_equalTo(self.contentLbl.mas_right);
            make.height.mas_equalTo();
            make.top.mas_equalTo(self.contentLbl.mas_bottom);
        }];

        [_lookLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.right.mas_equalTo(self.contentLbl.mas_right);
            make.width.mas_equalTo();
            make.height.mas_equalTo();
            make.top.mas_equalTo(_lineView.mas_bottom);
            make.bottom.mas_equalTo(_bgView.mas_bottom);
        }];

    } else if ([model.jump isEqualToString:@""]) {

        [_lineView mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.left.mas_equalTo(self.contentLbl.mas_left);
            make.right.mas_equalTo(self.contentLbl.mas_right);
            make.height.mas_equalTo(0.5);
            make.top.mas_equalTo(self.contentLbl.mas_bottom);
        }];

        [_lookLbl mas_remakeConstraints:^(MASConstraintMaker *make) {

            make.right.mas_equalTo(self.contentLbl.mas_right);
            make.width.mas_equalTo();
            make.height.mas_equalTo();
            make.top.mas_equalTo(_lineView.mas_bottom);
            make.bottom.mas_equalTo(_bgView.mas_bottom);
        }];

    }

}

- (void)setSubviews
{

    [_msgDateLbl mas_makeConstraints:^(MASConstraintMaker *make) {

        make.left.mas_equalTo(self.contentView.mas_left);
        make.top.mas_equalTo(self.contentView.mas_top);
        make.right.mas_equalTo(self.contentView.mas_right);
        make.height.mas_equalTo();
    }];
}

#pragma mark - delegate

- (void)mlEmojiLabel:(MLEmojiLabel*)emojiLabel didSelectLink:(NSString*)link withType:(MLEmojiLabelLinkType)type
{
    switch(type){
        case MLEmojiLabelLinkTypeURL:

            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:link]];
            break;
        case MLEmojiLabelLinkTypePhoneNumber:

            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"tel://%@", link]]];
            break;
        case MLEmojiLabelLinkTypeEmail:

            [[UIApplication sharedApplication] openURL:[NSURL URLWithString:[NSString stringWithFormat:@"mailto:%@", link]]];
            break;
        case MLEmojiLabelLinkTypeAt:
            NSLog(@"点击了用户%@",link);
            break;
        case MLEmojiLabelLinkTypePoundSign:
            NSLog(@"点击了话题%@",link);
            break;
        default:
            NSLog(@"点击了不知道啥%@",link);
            break;
    }

}

- (MLEmojiLabel *)contentLbl
{
    if (!_contentLbl) {

        _contentLbl = [MLEmojiLabel new];
        _contentLbl.numberOfLines = ;
        _contentLbl.font = [UIFont systemFontOfSize:13.0f];
        _contentLbl.delegate = self;
        _contentLbl.backgroundColor = [UIColor whiteColor];
        _contentLbl.lineBreakMode = NSLineBreakByTruncatingTail;
        _contentLbl.textColor = [UIColor colorWithHex:@"a0a0a0"];
        _contentLbl.disableEmoji = NO;
        _contentLbl.lineSpacing = 3.0f;
        _contentLbl.verticalAlignment = TTTAttributedLabelVerticalAlignmentCenter;

    }
    return _contentLbl;
}

2：在控制器.m文件中使用

- (void)drawView
{
    _tableView = [[UITableView alloc] initWithFrame:CGRectZero style:UITableViewStylePlain];
    _tableView.backgroundColor = [UIColor bgColor];
    _tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
    _tableView.delegate = self;
    _tableView.dataSource = self;
    [self addSubview:_tableView];

    // 给一个标识符，告诉tableView要创建哪个类
    [_tableView registerClass:[LBDMsgCenterCell class] forCellReuseIdentifier:@"LBDMsgCenterCell"];

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
    return [self.tableView fd_heightForCellWithIdentifier:@"LBDMsgCenterCell" cacheByIndexPath:indexPath configuration:^(LBDMsgCenterCell *cell) {

        // 在这个block中，重新cell配置数据源
        [self setupModelOfCell:cell atIndexPath:indexPath];
    }];
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return _msgArr.count;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    LBDMsgCenterCell *cell = [tableView dequeueReusableCellWithIdentifier:@"LBDMsgCenterCell"];
    cell.selectionStyle = UITableViewCellSelectionStyleNone;
    cell.backgroundColor = [UIColor clearColor];
    [self setupModelOfCell:cell atIndexPath:indexPath];

    return cell;
}

- (void)setupModelOfCell:(LBDMsgCenterCell *) cell atIndexPath:(NSIndexPath *) indexPath {

    // 采用计算frame模式还是自动布局模式，默认为NO，自动布局模式
    //    cell.fd_enforceFrameLayout = NO;
    cell.model = _msgArr[indexPath.row];
}