Question

I have a UITextView inside of a UIScrollView that is configured offscreen when the code below runs in my ViewController's viewDidLoad. Unfortunately, if the “eventDetails” text is particularly long nothing is displayed inside the UITextView until I interact with it (e.g click inside and drag for example).

My question: How to have it so the text is displayed in the UITextView WITHOUT forcing the user to interact with the UITextView first?

Here is the code:

UITextView *txtDetails = [[UITextView alloc] initWithFrame:CGRectMake(-4, yOffset, page3ScrollView.frame.size.width, 0)];
[txtDetails setEditable:NO];
[txtDetails setScrollEnabled:NO];
[txtDetails setFont:[UIFont systemFontOfSize:12]];
[txtDetails resizeAndSetTextWithMaxSize:CGSizeMake(txtDetails.frame.size.width, 999999999) forText:eventDetails withAdditionalHeightOf:16.f];

[page3ScrollView addSubview:txtDetails];

CGRect frame = txtDetails.frame;
frame.size.height = [txtDetails contentSize].height;
txtDetails.frame = frame;

[page3ScrollView setContentSize:CGSizeMake(page3ScrollView.frame.size.width, txtDetails.frame.origin.y + txtDetails.frame.size.height)];

Thanks

Answer 1

I was able to get this working by setting the UITextView’s text ONLY when needed (e.g. is about to come on screen). Below is the relevant code:

- (void)scrollViewDidEndDecelerating:(UIScrollView *)sv 
{
    if (sv == scrollView) [self updatePagedView];
}

- (void)updatePagedView
{
    int currentPage = pageControl.currentPage;

    // *** loadDetailsPage3 is where I set the text ***
    if (currentPage == 2) {
        [self loadDetailsPage3];
    }
}

If anyone has a better solution or needs more explanation just hit me up in the comments.