CODEWITHSUNDEEP
iosiphoneobjective-cuiscrollview
user3686588
user3686588

Reputation: 375

Why is UIScrollView leaving space on top and does not scroll to the bottom

I am new to objective-C programming.

I am using UIScrollView with some labels, image and text view on it.

I have turned off Autolayout and already tried with "Adjust scroll View Insets" on (situation described in title) and off (doesn't scroll).

This is what I insert into viewDidLoad: 

    [scroller setScrollEnabled:YES];
[scroller setContentSize:CGSizeMake(320, 687)];

But I must be missing something very simple.

Upvotes: 34

Views: 45692

Answers (13)

casillas
casillas

Reputation: 16813

iOS 11 && 12

if #available(iOS 11.0, *) {
    scrollView.contentInsetAdjustmentBehavior = .never
} else {
    automaticallyAdjustsScrollViewInsets = false
}

Upvotes: 29

Teja
Teja

Reputation: 807

I did below, my problem solved

changing UIScrollView Content Insets property in from Automatic to Never and Adding below code in viewDidLoad()

scroller.contentInset = UIEdgeInsetsZero;
scroller.scrollIndicatorInsets = UIEdgeInsetsZero;
scroller.contentOffset = CGPointMake(0.0, 0.0);`

enter image description here

Upvotes: 2

Stéphane de Luca
Stéphane de Luca

Reputation: 13611

After user interface orientation going to landscape, my UIScrollView shown its UIScrollIndicator being misplaced. To fix this, you need to add the following code.

As per iOS 13, yet supporting iOS 12 and earlier:

    // Fixes the scroll indicator misplacement when rotated in landscape
    if #available(iOS 13.0, *) {
        v.automaticallyAdjustsScrollIndicatorInsets = false
    } else {
        // Fallback on earlier versions
        v.contentInsetAdjustmentBehavior = .never
    }

    v.contentInset = .zero
    v.scrollIndicatorInsets = .zero

Upvotes: 0

Gajendrasinh Chauhan
Gajendrasinh Chauhan

Reputation: 3397

This works for me,

_scrollView.scrollIndicatorInsets = UIEdgeInsetsZero;
_scrollView.contentOffset = CGPointMake(0.0, 0.0);
[_scrollView setContentSize:CGSizeMake(self.view.frame.size.width, self.view.frame.size.height)];

Upvotes: 0

Albert Renshaw
Albert Renshaw

Reputation: 17902

On iPhoneX this will also occur due to some non-sense safe area stuff that auto-layout tried to account for. Fix (for iPhoneX) with this:

if (@available(iOS 11.0, *)) {
    scrollView.contentInsetAdjustmentBehavior = UIScrollViewContentInsetAdjustmentNever;
}

Upvotes: 1

mike.stalker
mike.stalker

Reputation: 460

iOS 11

In my case only changing this UIScrollView Content Insets property in IB from Automatic to Never helped.

Upvotes: 29

Codetard
Codetard

Reputation: 2605

Actually, the margin has nothing to do with ScrollViewInsets or contentOffset. It's just a conflict between SuperView.Top and SafeArea.Top pinning, happens when you pin the UIScrollView to top, bottom, left and right.

This is the right way to cover the top margin.

1) Pin all the four sides.

Pinning

2) Select the top constraint > Change Second Item to Superview.Top

conflict

3) Then the last step is to change the Constant to 0 (Zero). enter image description here

You might want to check this too: https://github.com/29satnam/MoveTextFieldWhenKeyboardAppearsSwift

Upvotes: 2

Matt Butler
Matt Butler

Reputation: 476

Swift 3 (Auto Layout)

  1. Change "Layout Margins" to explicit
  2. Set margins to your needs

enter image description here

Upvotes: 0

Francisco Castro
Francisco Castro

Reputation: 445

Swift 3.0

self.automaticallyAdjustsScrollViewInsets = false

scrollView.contentInset = UIEdgeInsets.zero

scrollView.scrollIndicatorInsets = UIEdgeInsets.zero;    

scrollView.contentOffset = CGPoint(x: 0.0, y: 0.0);

Upvotes: 0

Yogendra
Yogendra

Reputation: 1716

1... Why is UIScrollView leaving space on top

With Storyboard- Goto view controller > Attribute Inspector > Uncheck Adjust Scroll View Insets property

With Code- For extra space set viewController property automaticallyAdjustsScrollViewInsets to NO, by default it is YES. 

self.automaticallyAdjustsScrollViewInsets = false; 
scroller.contentInset = UIEdgeInsetsZero;
scroller.scrollIndicatorInsets = UIEdgeInsetsZero;
scroller.contentOffset = CGPointMake(0.0, 0.0);

2... does not scroll to the bottom

To make it scroll try with large number in contentSize like CGSizeMake(320, 1687). If it works that means you are not setting the contentSize large enough to have all its content.

Upvotes: 52

Kam K
Kam K

Reputation: 335

Swift 3.0

self.automaticallyAdjustsScrollViewInsets = false

scrollView.contentInset = UIEdgeInsets.zero

scrollView.scrollIndicatorInsets = UIEdgeInsets.zero;

Upvotes: 6

invoodoo
invoodoo

Reputation: 3906

Just select your view controller and set shown option to false (uncheck)

ViewController Inspector

Upvotes: 34

Robin98
Robin98

Reputation: 1159

In your view .m file, use this code to fix this problem

-(void)layoutSubviews{
    // To fix iOS8 bug of scrollView autolayout
    if([[[[[UIDevice currentDevice]systemVersion] componentsSeparatedByString:@"."]objectAtIndex:0] integerValue] == 8){
        [self.tableView setContentInset:UIEdgeInsetsMake(0, 0, 0, 0)];
    }
}

Upvotes: 0

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