UITextView和单元格根据textview的内容动态更新高度？

这也适用于ios 7

这进入你的tableviewcell

protocol HeightForTextView {    func heightOfTextView(height: CGFloat)}class TableViewCell: UITableViewCell {    @IBOutlet weak var textView: UITextView!    var delgate:HeightForTextView?    override func awakeFromNib() {        super.awakeFromNib()        // Initialization pre    }    func textViewDidChange(textView: UITextView) {        var fixedWidth: CGFloat = textView.frame.size.width        var newSize: CGSize = textView.sizeThatFits(CGSizeMake(fixedWidth, CGFloat.max))        if let iuDelegate = self.delgate { iuDelegate.heightOfTextView(newSize.height)        }    }}

您的tableview控制器应为

 class TableViewController: UITableViewController,HeightForTextView {        var textViewHeight = CGFloat()    //In your cell for row method set your your delegate  override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {    let cell = tableView.dequeueReusableCellWithIdentifier("cell", forIndexPath: indexPath) as! TableViewCell    cell.delgate = self    return cell}//delegate method    func heightOfTextView(height: CGFloat) {    textViewHeight = height    self.tableView.beginUpdates()    self.tableView.endUpdates()    } override func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat { return textViewHeight + 70    }    }