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

时间：2022-06-06 19:00:55

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];

}

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