Databases
StackOverflow2013
Postsdbo
POsetContentOffset loses precision?
 

Note that there are some explanatory texts on larger screens.

plurals
  1. POsetContentOffset loses precision?
    primarykey
    data
    text
    <p>I have an application where I need to initialize the <code>contentOffset</code> of a <code>UIScrollView</code> to a certain value. I notice when I set the <code>contentOffset</code>, it rounds the points up to the nearest integers. I've tried using both <code>setContentOffset</code> and <code>setContentOffset:animated</code> and still get the same result. When I try to manually add the <code>contentOffset</code> onto the frame origin, I don't get the result I want. Anyone know anyway around this?</p> <pre><code>UIScrollView *myScrollViewTemp = [[UIScrollView alloc] initWithFrame: CGRectMake(CropThePhotoViewControllerScrollViewBorderWidth, CropThePhotoViewControllerScrollViewBorderWidth, self.myScrollViewBorderView.frame.size.width - (CropThePhotoViewControllerScrollViewBorderWidth * 2), self.myScrollViewBorderView.frame.size.height - (CropThePhotoViewControllerScrollViewBorderWidth * 2))]; [self setMyScrollView: myScrollViewTemp]; [[self myScrollView] setAutoresizingMask: UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight]; [[self myScrollView] setShowsVerticalScrollIndicator: NO]; [[self myScrollView] setShowsHorizontalScrollIndicator: NO]; [[self myScrollView] setBouncesZoom: YES]; [[self myScrollView] setDecelerationRate: UIScrollViewDecelerationRateFast]; [[self myScrollView] setDelegate:self]; [[self myScrollViewBorderView] addSubview: [self myScrollView]]; [myScrollViewTemp release]; UIImageView *myImageViewTemp = [[UIImageView alloc] initWithImage: self.myImage]; [self setMyImageView: myImageViewTemp]; [[self myScrollView] addSubview:[self myImageView]]; [[self myScrollView] setContentSize: [self.myImage size]]; [[self myScrollView] setMinimumZoomScale: self.previousZoomScale]; [[self myScrollView] setMaximumZoomScale: 10]; [[self myScrollView] setZoomScale: self.previousZoomScale animated:NO]; [[self myScrollView] setContentOffset: self.contentOffset animated:NO]; [myImageViewTemp release]; </code></pre> <p>UPDATE: Updated code.</p>
    singulars
    1. PO
      singulars
      1. PTAnswer
    1. This table or related slice is empty.
    1. PTQuestion
    1. USSer Pounce
    1. USSer Pounce
    plurals
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. This table or related slice is empty.
    1. PO
      singulars
      1. PTAnswer
    2. PO
      singulars
      1. PTAnswer
    3. PO
      singulars
      1. PTAnswer
    1. VO
      singulars
      1. POsetContentOffset loses precision?
      1. This table or related slice is empty.
      1. VTUpMod
    2. VO
      singulars
      1. POsetContentOffset loses precision?
      1. This table or related slice is empty.
      1. VTUpMod
    1. CODoes it round up even on retina devices? If so, that seems like a bug. If it only rounds on non-retina devices, this is to be expected. UIScrollView wants its content pixel aligned.
      singulars
      1. POsetContentOffset loses precision?
      1. USMike Weller
    2. COput some code, please
      singulars
      1. POsetContentOffset loses precision?
      1. USmeronix
    3. COI have an iPhone 4 so yes I believe that is a retina device. Thing is, the value I'm trying to set the contentOffset to, is a contentOffset that I copied from another UIScrollView where I was moving around an image. So it's capable of scrolling to a half point, but when I set it it rounds up?
      singulars
      1. POsetContentOffset loses precision?
      1. USSer Pounce
 

Querying!

 
Guidance
A row detail

Detail views are divided into sections. All the information in the data section comes from columns in the selected row. The other sections display data from other, related rows.

Related data can be related in a to-one or a to-many fashion. Captions of data related in a to-many fashion link to a list view showing a filtered view of the table.

Try moving around until you find a non-empty to-many entry and click on the label to get to one. You can move back to the root by clicking on the database name in the header.

SQuiL has stopped working due to an internal error.

If you are curious you may find further information in the browser console, which is accessible through the devtools (F12).

Reload