将图像或文本插入到集合视图中

Question

在我的应用中，我想发送图片或发短信。在这个应用程序中，我不使用故事板，以便所有设计都是通过代码编写的，当我发送消息输出时，我使用框架在集合视图中显示消息并不像我期望的那样，你能检查我的代码并转发给我正确的方向。    这是cellForItemAtIndexPath：

override func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let section = informations[sortedSections[indexPath.section]]
    let item = section![indexPath.row]
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: cellId, for: indexPath) as! ChatLogMessageCell
    let date = item.value(forKey: "date") as? Date
    let dateFormatter = DateFormatter()
    dateFormatter.dateFormat = "HH:mm"
    cell.date.text = dateFormatter.string(from: date!)
    if let imageData = item.value(forKey: "image"){
        let image = UIImage(data: imageData as! Data)
        cell.imageView.image = image
        cell.date.frame = CGRect(x: view.frame.width-60, y: 140, width: 50, height: 30)
        cell.textBubleView.frame = CGRect(x: view.frame.width-230, y: 0, width: 220, height: 170)
        cell.imageView.frame = CGRect(x: view.frame.width-220, y: 10, width: 180, height: 150)
        //cell.messageTextView.isHidden = true

    }

    if let messageText = item.value(forKey: "text") as? String{
        cell.messageTextView.text = messageText
        let size = CGSize(width: 250, height: 1000)
        let options = NSStringDrawingOptions.usesFontLeading.union(.usesLineFragmentOrigin)

        let estimatedFrame = NSString(string: messageText).boundingRect(with: size, options: options, attributes: [NSFontAttributeName: UIFont.systemFont(ofSize: 18)], context: nil)
        cell.messageTextView.frame = CGRect(x: view.frame.width-estimatedFrame.width-16-16-40, y: 0, width: estimatedFrame.width+16, height: estimatedFrame.height + 20)
        cell.textBubleView.frame = CGRect(x: view.frame.width-estimatedFrame.width-16-16-8-40, y: 0, width: estimatedFrame.width+16+8+48, height: estimatedFrame.height + 20)
        cell.date.frame = CGRect(x: view.frame.width-60, y: estimatedFrame.height-10, width: 50, height: 30)
        cell.date.text = dateFormatter.string(from: date!)
        //cell.imageView.isHidden = true
    }

    return cell
}

这是sizeForItemAtIndexPath：

func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize {
    let section = informations[sortedSections[indexPath.section]]
    let item = section![indexPath.row]

    if let messageText = item.value(forKey: "text") as? String{
        let size = CGSize(width: 250, height: 1000)
        let options = NSStringDrawingOptions.usesFontLeading.union(.usesLineFragmentOrigin)
        let estimatedFrame = NSString(string: messageText).boundingRect(with: size, options: options, attributes: [NSFontAttributeName: UIFont.systemFont(ofSize: 18)], context: nil)
        return CGSize(width: view.frame.width, height: estimatedFrame.height+20)
    }
    if (item.value(forKey: "image") as? NSData) != nil{
        return CGSize(width: 180, height: 160)
    }
    return CGSize(width: 0, height: 0)
}

我想要的是

但有时我得到：