Auto Size cell based on UITextView - ios

Question

I have a UITextView in a UITableViewCell in the storyboard. I then added a constraint on all 4 sides of the UITextView.
In the code below I tried making the textView dynamically change as the user enters text. I'm pretty sure that worked successfully. But the problem is the cell is not. Bellow is the code I tried, without success.
-(void)viewDidLoad
{
tableView.rowHeight = UITableViewAutomaticDimension;
tableView.estimatedRowHeight = 44;
}
- (BOOL)textView:(UITextView *)textView shouldChangeTextInRange:(NSRange)range replacementText:(NSString *)text
{
if (textView == myTextView)
{
[self textViewFitToContent:myTextView];
[self.tableView beginUpdates];
[self.tableView reloadRowsAtIndexPaths:#[[NSIndexPath indexPathForItem:1 inSection:0]] withRowAnimation:UITableViewRowAnimationNone];
[self.tableView endUpdates];
}
return YES;
}
- (void)textViewFitToContent:(UITextView *)textView
{
CGFloat fixedWidth = textView.frame.size.width;
CGSize newSize = [textView sizeThatFits:CGSizeMake(fixedWidth, MAXFLOAT)];
CGRect newFrame = textView.frame;
newFrame.size = CGSizeMake(fmaxf(newSize.width, fixedWidth), newSize.height);
textView.frame = newFrame;
textView.scrollEnabled = NO;
}
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return myTextView.frame.size.height + 40;
}
I'm a beginner so please don't be too harsh on me.
Thanks

Answer 1

Your code is fine, flawless infact and quite well done. Without seeing your declared variables, I believe the reason that the cell isn't resizing is because you're heightForRowAtIndexPath method is returning the height of the wrong UITextView. Instead of txtSymptoms which isn't used anywhere else in the resizing code, you should be using myTextView instead, which, when the user edits the text of, will trigger the tableView to reload.

Answer 2

This snippet of yours:
- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
return myTextView.frame.size.height + 40;
}
From the rest of your code, myTextView seems to be a special text view that you are adding text to and resizing, but this method uses that larger height for sizing, which is why all of your cells grow taller.

Answer 3

In the storyboard, select your text view and in the size inspector look for the content hugging priority option.
Content hugging priority can range from 0 to 1000.
Keep the content hugging priority of your text view (for vertical section especially) higher than the content hugging priority of the content view of the cell in which the text view resides.