Dynamically resize UITextView and UITableViewCell to fit content

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C

Objective-C

iOS

I have a UITextView in a UITableViewCell. I added auto constraints to the textView. I want the textView to dynamically size itself when the user enters text, and I want the cell to dynamically size itself according to the textView.

When I run the code bellow, what happens is:

1 - At first the textViews height is really small as shown:
Picture1

2 - Next, when I insert text without making a new line, this is what happens:
Picture2

3 - When I make a new line, I don't see it until I create a new line and only after I enter text do I see it:
Picture3

I only see 'how' once I enter text on the next line which I can't see (yet).

4 - The trick around issue #3 is if I click on a line that I can totally see (meaning not the 2 last lines) and I create a new line from there. Only if I do it that way will it behave normally (with hiding the last line).
Picture4

Please don't be too harsh cause I'm a beginner.

Thanks

Here is my code:

-(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 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
{
    if (indexPath.section == 1 && indexPath.row == 0) {
        return myTextview.frame.size.height + 40;
    }
    return 44;
}