UITextView text content doesn't start from the top - objective-c

Question

I have a long text coming from my JSON file but when I click the link from my UITableViewCell to go to my UIViewController page, the UITextView text loads the string content but it does not show the content from the beginning and I have to scroll up all the time.
What I need to do?

Answer 1

I had the same problem, and turns out I had to set the content offset in viewDidLayoutSubviews for it to take effect. I'm using this code to display attributed static text.
- (void)viewDidLayoutSubviews {
[self.yourTextView setContentOffset:CGPointZero animated:NO];
}
SWIFT 3:
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
self.textView.setContentOffset(CGPoint.zero, animated: false)
}

Answer 2

This is the only way that worked for me. I disable the scroll of the UITextView before the view is loaded and then i enable it again:
override func viewWillAppear(_ animated: Bool) {
yourTextView.isScrollEnabled = false
}
override func viewDidAppear(_ animated: Bool) {
yourTextView.isScrollEnabled = true
}

Answer 3

[self.textView scrollRangeToVisible:NSMakeRange(0, 1)];
in viewDidLoad

Answer 4

By Programmatically before loading the content disable the scrolling property of textview
textview.scrollenabled = NO;
And after loading enable the scrolling of textview textview.scrollenabled = YES;
As well check the XIB, always non-check the scrolling enabled of Textview.

Answer 5

The answers for the question Blank space at top of UITextView in iOS 10 provide a much cleaner end user experience.
In viewDidLoad of the view controller containing the text view:
self.automaticallyAdjustsScrollViewInsets = false
Setting textView.setContentOffset(CGPointMake(0,0), animated: false) and some of these other suggestions do work when called in the viewDidLayoutSubviews() but on older devices like iPad 2 and older you will actually see the text get scrolled when the screen is displayed. That is not something you want the end user to see.

Answer 6

I was still having problems after using these solutions. The problem definitely seems to relate to having transparent navigation bars and selecting to automatically adjust content insets on the view controller. If you don't care about your text scrolling underneath the navigation bar then it's best to leave these settings off and constrain the top of your textview to the bottom of the navigation bar, rather than to the top of the viewcontroller.
If like me you wanted it to appear underneath your navigation bar when you scroll down; then the solution that worked for me was to add this.
- (void)viewDidLayoutSubviews
{
[super viewDidLayoutSubviews];
CGFloat offset = self.navigationController.navigationBar.frame.size.height+[UIApplication sharedApplication].statusBarFrame.size.height;
[self.textView setContentOffset:CGPointMake(0, -offset) animated:NO];
}
This just looks for the height of the navigation bar and status bar and adjusts the content offset accordingly.
Note that one downside of this approach is that when the device rotates you'll end up scrolling back to the top.

Answer 7

For me fine works this code:
textView.attributedText = newText //or textView.text = ...
//this part of code scrolls to top
textView.contentOffset.y = -64 //or = 0 if no Navigation Bar
textView.scrollEnabled = false
textView.layoutIfNeeded()
textView.scrollEnabled = true
For scroll to exact position and show it on top of screen I use this code:
var scrollToLocation = 50 //<needed position>
textView.contentOffset.y = textView.contentSize.height
textView.scrollRangeToVisible(NSRange.init(location: scrollToLocation, length: 1))
Setting contentOffset.y scrolls to the end of text, and then scrollRangeToVisible scrolls up to value of scrollToLocation. Thereby, needed position appears in first line of scrollView.

Answer 8

Similar to some other answers, but with the added benefit that you won't cause a scroll to top on subsequent device rotations. Works well in Swift 2.2
/// Whether view has laid out subviews at least once before.
var viewDidLayoutSubviewsAtLeastOnce = false
override func viewDidLayoutSubviews() {
super.viewDidLayoutSubviews()
if !viewDidLayoutSubviewsAtLeastOnce {
textView.setContentOffset(CGPoint(x: 0, y: -textView.contentInset.top), animated: false)
}
viewDidLayoutSubviewsAtLeastOnce = true
}

Answer 9

Swift Version
A combination of things will be needed:
1.) Set your outlet
#IBOutlet var textView: UITextView!
2.) In storyboard on View Controller turn off "Adjust Scroll View Insets"
3.) Set content to zero top by adding below to your view controller
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
myUITextView.setContentOffset(CGPointZero, animated: false)
}

Answer 10

Instead of setting content offset from viewDidLayoutSubviews you can write layoutIfNeeded from viewDidLoad to set the proper position of textview as below:
self.textView.layoutIfNeeded()
self.textView.setContentOffset(CGPoint.zero, animated: false)
Cheers !!

Answer 11

In Swift 2, Xcode 7 solution, to leave scroll Enabled as well as have the text start at the top, this is all you need:
#IBOutlet weak var myUITextView: UITextView!
override func viewWillLayoutSubviews() {
super.viewWillLayoutSubviews()
//start scroll at top of text
myUITextView.scrollRangeToVisible(NSMakeRange(0, 0))
}

Answer 12

Swift 3.0
override func viewWillAppear(_ animated: Bool) {
privacyText.isScrollEnabled = false
}
override func viewDidAppear(_ animated: Bool) {
privacyText.isScrollEnabled = true
}

Answer 13

This worked the best for me! I placed this within viewDidLoad().
//TextView Scroll starts from the top
myTextView.contentOffset.y = 0

Answer 14

Here's another way to do it that always works for me. Objective-C:
- (void)viewDidAppear:(BOOL)animated {
[super viewDidAppear:animated];
[self.textView setContentOffset:CGPointZero animated:NO];
}
And in Swift:
override func viewDidAppear(animated: Bool) {
super.viewDidAppear(animated)
textView.setContentOffset(CGPointZero, animated: false)
}

Answer 15

Swift version:
override func viewDidLayoutSubviews() {
yourTextView.setContentOffset(CGPointZero, animated: false)
}

Answer 16

add the following function to your view controller class...
Swift 3
override func viewDidLayoutSubviews() {
self.mainTextView.setContentOffset(.zero, animated: false)
}
Swift 2.1
override func viewDidLayoutSubviews() {
self.mainTextView.setContentOffset(CGPointZero, animated: false)
}
Objective C
- (void)viewDidLayoutSubviews {
[self.mainTextView setContentOffset:CGPointZero animated:NO];
}
或者 你在ViewDidAppear 里面加上滚动，这样用户会看到他往上滚动到第一行

Answer 17

in swift 4 with attributed text any of answer does not help me and i combine some answers in topic.
override func viewWillAppear(_ animated: Bool) {
super.viewWillAppear(animated)
uiTextview.isScrollEnabled = false
}
override func viewDidAppear(_ animated: Bool) {
uiTextview.isScrollEnabled = true
uiTextview.setContentOffset(CGPoint.zero, animated: false)
}

Answer 18

Swift 3, 4, 5 solution:
Steps to solve the issue:
Disable the UITextView scroll
set scrollRectToVisible
enable UITextView scroll
Code:
yourTextView.isScrollEnabled = false
let rect:CGRect = CGRect(x: 0, y: 0, width: 1, height: 1)
yourTextView.scrollRectToVisible(rect, animated: false)
yourTextView.isScrollEnabled = true
This Worked for me. Hope that will help!

Answer 19

This is how i did it. I subclassed textview, and:
override func willMoveToSuperview(newSuperview: UIView?) {
self.scrollEnabled = false
}
override func layoutSubviews() {
super.layoutSubviews()
self.scrollEnabled = true
}

Answer 20

From storyboard, select the view controller on which you have you text view placed. In the attributes inspector, uncheck "Adjust Scroll View Insets". That's it.

Answer 21

Put this code on your class
override func viewDidLayoutSubviews() {
self.About_TV.setContentOffset(.zero, animated: false) // About_TV : your text view name)
}

Answer 22

Add code to the viewdidload
self.automaticallyAdjustsScrollViewInsets = NO;