Dynamic UITextView in a dynamic UIScrollView - iOS

Question

I'm facing a problem which takes me too long to solve. I built a view, which contains a ScrollView. in the ScrollView, there's a view, which contains an image, and a UITextView. the textview should be in a dynamic height, with scrolling disabled. the textview gets all the text, but cut it off, and shows only the text that fits the height. in addition, the ScrollView doesn't changes.

- (void)viewDidLoad

 ....
 //sets the text to the textview
 [self.contentArticle setText:[NSString stringWithString:xmlParser.articleContent]];
 //configures the scrollView
 [self configureScrollView];

 ....

- (void)configureScrollView {

[self.contentView addSubview:self.contentArticle];
[self.scrollView addSubview:self.contentView];

CGRect frame = self.contentView.frame;
frame.size.height = self.contentArticle.contentSize.height;
self.scrollView.frame = frame;

[self.contentView sizeToFit];
[self.scrollView sizeToFit];

self.scrollView.contentSize = self.contentView.frame.size;
self.contentArticle.editable=NO;
self.contentArticle.scrollEnabled=NO;

 //enable zoomIn
self.scrollView.delegate=self;
self.scrollView.minimumZoomScale=1;
self.scrollView.maximumZoomScale=7;

I did so many changes, and im not sure what is going on in there anymore!...

help would be sooo nice :)

UPDATE-

- (void)configureScrollView {

[self.contentView addSubview:self.contentArticle];
[self.scrollView addSubview:self.contentView];

CGRect textViewFrame = self.contentArticle.frame;
textViewFrame.size = [self.contentArticle contentSize];
self.contentArticle.frame = textViewFrame;

[self.scrollView setContentSize:textViewFrame.size];
self.contentArticle.editable=NO;
self.contentArticle.scrollEnabled=NO;
}

Answer 1

Try

- (void)configureScrollView{

    self.contentView.autoresizingMask = UIViewAutoresizingNone;
    self.contentArticle.autoresizingMask = UIViewAutoresizingNone;

    CGRect textViewFrame = self.contentArticle.frame;
    textViewFrame.size = [self.contentArticle contentSize];
    self.contentArticle.frame = textViewFrame;

    CGRect contentViewFrame = self.contentView.frame;
    contentViewFrame.size.height = textViewFrame.origin.y+textViewFrame.size.height;
    self.contentView.frame = contentViewFrame;

    [self.scrollView setContentSize:contentViewFrame.size];

    self.contentArticle.editable=NO;
    self.contentArticle.scrollEnabled=NO;

    //enable zoomIn
    self.scrollView.delegate=self;
    self.scrollView.minimumZoomScale=1;
    self.scrollView.maximumZoomScale=7;

}

Source code

Answer 2

had same issue , tried to find solution for many days and finally i got it working. I have a textview inside a scrollview.

1. disabled autolayout from storyboards
2. ive added the textview to scrollview with addsubview
3. and finally set the content of the scrollview, to the textview frame height.

Below my code:

_textView.text = stripped; //(some string ,yours: contentArticle)
[_textView sizeToFit];
CGRect frame = _textView.frame;
frame.size.height = _textView.contentSize.height;
_textView.scrollEnabled = NO;
_textView.frame = frame;

[self.scrollView addSubview:_textView];
[self.scrollView setContentSize:CGSizeMake(320,frame.size.height)];

Hope it helps!

Answer 3

You need to set self.contentView height first Use this code:

- (void)configureScrollView {

    [self.contentView addSubview:self.contentArticle];
    CGRect frame = self.contentArticle.frame;
    frame.size.height = self.contentArticle.contentSize.height;
    self.contentArticle.frame = frame;

    [self.scrollView addSubview:self.contentView];
    frame = self.contentView.frame;
    frame.size.height += self.contentArticle.frame.height;
    self.contentView.frame = frame;

    self.scrollView.contentSize = self.contentView.frame.size;
    self.contentArticle.editable=NO;
    self.contentArticle.scrollEnabled=NO;

    //enable zoomIn
    self.scrollView.delegate=self;
    self.scrollView.minimumZoomScale=1;
    self.scrollView.maximumZoomScale=7;
}