HYBSnapkitAutoCellHeight开源自动算行高Swift版

  publicvarhyb_lastViewInCell: UIView? {   get {     letlastView = objc_getAssociatedObject(self, &__hyb_lastViewInCellKey);     return lastViewas? UIView   }      set {     objc_setAssociatedObject(self,       &__hyb_lastViewInCellKey,       newValue,       .OBJC_ASSOCIATION_RETAIN_NONATOMIC);   } }   publicvarhyb_bottomOffsetToCell: CGFloat? {   get {     letoffset = objc_getAssociatedObject(self, &__hyb_bottomOffsetToCell);     return offsetas? CGFloat   }      set {     objc_setAssociatedObject(self,       &__hyb_bottomOffsetToCell,       newValue,       .OBJC_ASSOCIATION_ASSIGN);   } }   

  /** 唯一的类方法，用于计算行高   - parameter indexPath: index path - parameter config:        在config中调用配置数据方法等   - returns: 所计算得到的行高 */ publicclass funchyb_cellHeight(forIndexPathindexPath: NSIndexPath,config: ((cell: UITableViewCell) -> Void)?) -> CGFloat {   letcell = self.init(style: .Default,reuseIdentifier: nil)      if letblock = config {     block(cell: cell);   }      return cell.hyb_calculateCellHeight(forIndexPath: indexPath) }   

  // MARK: UITableViewDelegate functableView(tableView: UITableView, heightForRowAtIndexPathindexPath: NSIndexPath) -> CGFloat {   letmodel = self.dataSource[indexPath.row]      return TestCell.hyb_cellHeight(forIndexPath: indexPath,config: { (cell) -> Void in     letitemCell = cellas? TestCell     itemCell?.config(testModel: model)   }) }   

  overrideinit(style: UITableViewCellStyle,reuseIdentifier: String?) {   super.init(style: style,reuseIdentifier: reuseIdentifier)      self.contentView.addSubview(headImageView)   headImageView.snp_makeConstraints { (make) -> Void in     make.left.top.equalTo(15)     make.width.height.equalTo(80)   }   headImageView.image = UIImage(named: "head")      // title   self.contentView.addSubview(titleLabel)   titleLabel.numberOfLines = 0   titleLabel.font = UIFont.systemFontOfSize(26)   titleLabel.snp_makeConstraints { (make) -> Void in     make.left.equalTo(headImageView.snp_right).offset(15)     make.right.equalTo(-15)     make.top.equalTo(headImageView)   }      // 若不指定preferredMaxLayoutWidth属性，则计算会不准备，使用Masonry时，指定此属性   // 是特别适配iOS6的，不过使用SnapKit则必须指定，否则自动计算的高度会不准确   letwidth = UIScreen.mainScreen().bounds.size.width   titleLabel.preferredMaxLayoutWidth = width - 30 - 15 - 80;      self.contentView.addSubview(descLabel)   descLabel.numberOfLines = 0   descLabel.font = UIFont.systemFontOfSize(22)   descLabel.snp_makeConstraints { (make) -> Void in     make.left.right.equalTo(titleLabel)     make.top.equalTo(titleLabel.snp_bottom).offset(15)   }   descLabel.preferredMaxLayoutWidth = titleLabel.preferredMaxLayoutWidth      descLabel.userInteractionEnabled = true   lettap = UITapGestureRecognizer(target: self,action: Selector("onTapDesc"))   descLabel.addGestureRecognizer(tap)      self.contentView.addSubview(blogSummaryLabel)   blogSummaryLabel.numberOfLines = 0   blogSummaryLabel.font = UIFont.systemFontOfSize(22)   blogSummaryLabel.snp_makeConstraints { (make) -> Void in     make.left.right.equalTo(descLabel)     make.top.equalTo(descLabel.snp_bottom).offset(15)   }   blogSummaryLabel.preferredMaxLayoutWidth = titleLabel.preferredMaxLayoutWidth      lettap1 = UITapGestureRecognizer(target: self,action: Selector("onTapBlog"))   blogSummaryLabel.userInteractionEnabled = true   blogSummaryLabel.addGestureRecognizer(tap1)      self.contentView.addSubview(okButton)   okButton.setTitleColor(UIColor.whiteColor(),forState: .Normal)   okButton.setTitle("计算高度的参考",forState: .Normal)   okButton.backgroundColor = UIColor.greenColor()   okButton.snp_makeConstraints { (make) -> Void in     make.right.equalTo(-15)     make.height.equalTo(45)     make.top.equalTo(blogSummaryLabel.snp_bottom).offset(15)   }      blogSummaryLabel.backgroundColor = UIColor.redColor()   descLabel.backgroundColor = UIColor.greenColor()      letlineLabel = UILabel()   lineLabel.backgroundColor = UIColor.lightGrayColor()   self.contentView.addSubview(lineLabel)   lineLabel.snp_makeConstraints { [unownedself] (make) -> Void in     make.height.equalTo(1)     make.left.equalTo(15);     make.right.equalTo(0)     make.bottom.equalTo(self.contentView)   }      // 指定最后一个视图，作为计算高度的参考   self.hyb_lastViewInCell = okButton   self.hyb_bottomOffsetToCell = 15 }   

  // MARK: Public funcconfig(testModelmodel: TestModel) {   titleLabel.text = model.title   descLabel.text = model.desc   blogSummaryLabel.text = model.blog      if model.isExpand1 != self.isExpand1 {     self.isExpand1 = model.isExpand1          if self.isExpand1 {       descLabel.snp_remakeConstraints(closure: { (make) -> Void in         make.left.right.equalTo(titleLabel)         make.top.equalTo(titleLabel.snp_bottom).offset(15)       })     } else {       descLabel.snp_updateConstraints(closure: { (make) -> Void in         make.height.lessThanOrEqualTo(55)       })     }   }      if model.isExpand2 != self.isExpand2 {     self.isExpand2 = model.isExpand2          if self.isExpand2 {       blogSummaryLabel.snp_remakeConstraints(closure: { (make) -> Void in         make.left.right.equalTo(descLabel)         make.top.equalTo(descLabel.snp_bottom).offset(15)       })     } else {       blogSummaryLabel.snp_updateConstraints(closure: { (make) -> Void in         make.height.lessThanOrEqualTo(55)       })     }   } }   

  pod 'HYBSnapkitAutoCellHeight', '~> 1.0.0'