UITextView inside tableview not resizing according to content - ios

Question

I have a tableView and a UITextView inside it. I am trying to add data from JSON to the table view but it is not shrinking/expanding according to size. I have tried a lot of forums and methods.
The main problem is - if it starts expanding/shrinking with height, it stops shrinking/expanding and vice versa. Bot height and width are not working.
This is because, when I set the trailing and leading constraints of the UITextView to the cell, it starts working with height but stops working with width. When I remove the leading/trailing constraints, the content of the UITextView goes beyond the screen and does not come as multiline i.e. does not expand with height. I have tried -
How do I size a UITextView to its content?
How to resize table cell based on textview?
and a lot many like these.
A little of my code-
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "Message") as! TextViewCell
cell.customTextView.textColor = UIColor.white
// Give a source to table view cell's label
cell.customTextView.text = requestResponseArr[indexPath.row]
cell.translatesAutoresizingMaskIntoConstraints = true
cell.sizeToFit()
if (indexPath.row % 2 == 0) {
cell.customTextView.backgroundColor = ConstantsChatBot.Colors.iMessageGreen
cell.customTextView.textAlignment = .right
} else {
cell.customTextView.backgroundColor = ConstantsChatBot.Colors.ButtonBlueColor
cell.customTextView.textAlignment = .left
}
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
And in viewDidLoad()-
override func viewDidLoad() {
// RandomEstimatedRowHeight
tableView.rowHeight = UITableViewAutomaticDimension
tableView.estimatedRowHeight = 300
}
I do not want the textview to be editable. Please reply with swift as I am not familiar with Objective C. Thanks
EDIT: Custom cell code
class TextViewCell: UITableViewCell {
#IBOutlet weak var customTextView: UITextView!
override func awakeFromNib() {
super.awakeFromNib()
// Initialization code
customTextView.isScrollEnabled = false
}
override func setSelected(_ selected: Bool, animated: Bool) {
super.setSelected(selected, animated: animated)
// Configure the view for the selected state
}
}

Answer 1

I have tried with UITextView inside UITableViewCell.
Constraints
UITextView, top, bottom and right as 2, 2 and 5, Width as 50. Font Size as 13, Alignment as Center. Give Outlet connection for Width constraints as txtVwWidthConst
UIViewController
#IBOutlet weak var tblView: UITableView!
var textWidthHeightDict = [Int : CGSize]()
override func viewDidAppear(_ animated: Bool) {
stringValue = [0 : "qwer\nasdasfasdf", 1 : "qwe", 2 : "123123\nasdas\nwqe", 3 : "q\n3\n4", 4 : "klsdfjlsdhfjkhdjkshfjadhskfjhdjksfhkdjsahfjksdhfkhsdfhjksdfjkasklsdfjlsdhfjkhdjkshfjadhskfjhdjksfhkdjsahfjksdhfkhsdfhjksdfjkasklsdfjlsdhfjkhdjkshfjadhskfjhdjksfhkdjsahfjksdhfkhsdfhjksdfjkas"]
for i in 0..<stringValue.count
{
GettingTextViewSize(getStr: stringValue[i]!, fontSize: 14, loopValue: i)
}
tblView.reloadData()
}
func GettingTextViewSize(getStr : String, fontSize: CGFloat, loopValue : Int)
{
var textSize = (getStr as! NSString).size(withAttributes: [NSAttributedStringKey.font : UIFont.systemFont(ofSize: fontSize)])
if textSize.width > self.tblView.frame.width
{
// IF STRING WIDTH GREATER THAN TABLEVIEW WIDTH
let multipleValue = textSize.width / self.tblView.frame.width
textSize.height = (textSize.height * (multipleValue + 1.0))
textSize.width = self.tblView.frame.width
textWidthHeightDict[loopValue] = textSize
}
else
{
textSize.height = textSize.height + 10 //ADDING EXTRA SPACE
textSize.width = textSize.width + 10 //ADDING EXTRA SPACE
textWidthHeightDict[loopValue] = textSize
}
}
func numberOfSections(in tableView: UITableView) -> Int {
return 1
}
func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return stringValue.count
}
func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: "table", for: indexPath) as! TblTableViewCell
cell.backgroundColor = cellBGColr[indexPath.row]
cell.txtVw.inputAccessoryView = toolBar
cell.txtVw.text = stringValue[indexPath.row]
cell.txtVw.tag = indexPath.row
cell.txtVwWidthConst.constant = (textWidthHeightDict[indexPath.row]?.width)!
cell.selectionStyle = .none
return cell
}
func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
var heightVal = (textWidthHeightDict[indexPath.row])
return heightVal!.height + 8 //ADDING EXTRA SPACE
}
UITableViewCell
class TblTableViewCell: UITableViewCell {
#IBOutlet weak var txtVw: UITextView!
#IBOutlet weak var txtVwWidthConst: NSLayoutConstraint!
// TEXTVIEW WIDTH CONSTRAINTS
override func awakeFromNib() {
super.awakeFromNib()
}
}
Output
Note
UITextView only, we have to calculate String size. But, in UILabel, this concept is very simple. Let me know, if you have any queries.

Answer 2

Disable UITextView isScrollEnabled is false inside cellForRowAt
Demo Example

Answer 3

You need to disable UItextView Scrolling for that.
textView.isScrollingEnabled = false
and in the cell add top, bottom, right and left constraints of textview.
And add height constraint >= 10

Answer 4

You need to set all four constraints for textview i.e. leading, trailing, top and bottom lets say all are set to 8 from margin.
It will look something like below:
check demo on GitHub here