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Fixes for scroll jumping when multi line text input changes size #2

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Merged
damienpontifex merged 1 commit into from
Mar 26, 2015
Merged

Fixes for scroll jumping when multi line text input changes size #2

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17 changes: 13 additions & 4 deletions ...SizingTextViewTableCell/SelfSizingTextViewTableCell/MultiLineTextInputTableViewCell.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -55,10 +55,19 @@ class MultiLineTextInputTableViewCell: UITableViewCell {
extension MultiLineTextInputTableViewCell: UITextViewDelegate {
func textViewDidChange(textView: UITextView!) {

// Only way found to make table view update layout of cell
// More efficient way?
let size = textView.bounds.size
let newSize = textView.sizeThatFits(CGSize(width: size.width, height: CGFloat.max))

tableView?.beginUpdates()
tableView?.endUpdates()
// Resize the cell only when cell's size is changed
if size.height != newSize.height {
UIView.setAnimationsEnabled(false)
tableView?.beginUpdates()
tableView?.endUpdates()
UIView.setAnimationsEnabled(true)

if let thisIndexPath = tableView?.indexPathForCell(self) {
tableView?.scrollToRowAtIndexPath(thisIndexPath, atScrollPosition: .Bottom, animated: false)
}
}
}
}