iOS static table auto resize based on textView - ios

Question

I have Text views inside a static table. I want them to resize when there is need for a line break. How do i do this? This is my code so far.
override func viewDidLoad() {
super.viewDidLoad()
table.estimatedRowHeight = 40.0 // Replace with your actual estimation
table.rowHeight = UITableViewAutomaticDimension
// Tap to dismiss keyboard
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(EditInfoViewController.dismissKeyboard))
view.addGestureRecognizer(tap)
}
func dismissKeyboard() {
view.endEditing(true)
// Save data
}
func tableView(tableView: UITableView, heightForRowAtIndexPath indexPath: NSIndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
override func tableView(_ tableView: UITableView, estimatedHeightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}

Answer 1

Swift 3 & Xcode 8.3.2
Use UILabel instead of UITextView, and set numberOfLine = 0, so it will automatic resize according to its content
or
if you want to keep UITextView instead UILabel, here is the code
class YourClass: UITableViewController, UITextViewDelegate {
var yourCustomCell: UITableViewCell = UITableViewCell()
override func viewDidLoad() {
super.viewDidLoad()
table.estimatedRowHeight = 40.0 // Replace with your actual estimation
table.rowHeight = UITableViewAutomaticDimension
// Tap to dismiss keyboard
let tap: UITapGestureRecognizer = UITapGestureRecognizer(target: self, action: #selector(EditInfoViewController.dismissKeyboard))
view.addGestureRecognizer(tap)
// Add tableView delegate
tableView.dataSource = self
tableView.delegate = self
// Add textView delegate
yourTextView.delegate = self
}
// Text view delegate, dont forget to add yourTextView.delegate = self in viewDidLoad
func textViewDidChange(_ textView: UITextView) {
if textView == yourTextView {
let newHeight = yourCustomCell.frame.size.height + textView.contentSize.height
yourCustomCell.frame.size.height = newHeight
updateTableViewContentOffsetForTextView()
}
}
// Animate cell, the cell frame will follow textView content
func updateTableViewContentOffsetForTextView() {
let currentOffset = tableView.contentOffset
UIView.setAnimationsEnabled(false)
tableView.beginUpdates()
tableView.endUpdates()
UIView.setAnimationsEnabled(true)
tableView.setContentOffset(currentOffset, animated: false)
}
// UITableViewDelegate, UITableViewDataSource
override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
return UITableViewAutomaticDimension
}
override func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
return UITableViewAutomaticDimension
}
override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
return 1
}
override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = yourCustomCell
cell.selectionStyle = .none
return cell
}
}
The result is here:
Result after using textViewDelegate, and custom resizing function