vinodh-g/parallaxtableviewheader

Parallax scrolling effect on UITableView header view when a tableView is scrolled

ParallaxTableViewHeader

Parallax scrolling effect on UITableView header view when a tableView is scrolled

Usage

Create a ParallaxHeaderView using either of one API's

• (id)parallaxHeaderViewWithImage:(UIImage *)image forSize:(CGSize)headerSize
• (id)parallaxHeaderViewWithCGSize:(CGSize)headerSize

set the parallaxHeaderView to UITableViewHeader as shown below

override scrollViewDelegate method

• (void)scrollViewDidScroll:(UIScrollView *)scrollView

Pass the UITableView or UIScrollView scrolling contentOffset to ParallaxHeaderView as shown below.

"thats it"

Swift

let headerView: ParallaxHeaderView = ParallaxHeaderView.parallaxHeaderViewWithImage(UIImage(named: "YourImageName"), forSize: CGSizeMake(self.tableview.frame.size.height, 300)) as ParallaxHeaderView
self.tableview.tableHeaderView = headerView

func  scrollViewDidScroll(scrollView: UIScrollView) {
    let header: ParallaxHeaderView = self.tableview.tableHeaderView as ParallaxHeaderView
    header.layoutHeaderViewForScrollViewOffset(scrollView.contentOffset)

    self.tableview.tableHeaderView = header
}

Credits

Used UIImage+ImageEffects (Extentions) of Created by Aaron Pang, achiving Bluring effect to headerView, support from iOS 7.0 onwords

parallaxtableviewheader's Issues

How to add to it an array of images which can scroll horizontally ?

how to add .xib file instead of header view

Image and label not centered + blur turns black

Hi,

thanks for the great parallax effect, however I am having issues with it. Namely the image and label appear too far to the right until I scroll, when they are replaced correcly.

Also, the blur turns the image completely dark rather than simply blurring it.

I am using xcode 7 and swift 2.0

How to add Gesture Recognizer to headerView?

I tried adding gestureRecognizer directly to headerView but not working, so I also tried:

` let headerImageView = UIImageView(frame: CGRectMake(0, 0, UIScreen.mainScreen().bounds.width, UIScreen.mainScreen().bounds.width*0.667))

    headerImageView.image = headerImage

    headerImageView.userInteractionEnabled = true

    let tap = UIGestureRecognizer(target: self, action: "showOrgIntroView")

    headerImageView.addGestureRecognizer(tap)

    let headerView = ParallaxHeaderView.parallaxHeaderViewWithSubView(headerImageView) as! ParallaxHeaderView

    self.tableView.tableHeaderView = headerView`

But it still doesn't work either.

How to Create the ParallaxTableViewHeader With Custom UIView SubClass?

Hi,Vinodh-G：
How to Create the ParallaxTableViewHeader With Custom UIView SubClass? now we can only create it with a UIImage and UILabel Text.

observe tableview contentoffset

This header needs to be layout on tableview delegate, why not just add observer for the contentOffset for the tableView inside this header?

ParallaxHeaderView - Image View from server (URL)?

Hi, can i put the header view from URL?

Regards.

pod

can you plz make it pod

cocoapods

I loved your library, if you intersete, I can help with cocoapods adiction.

UIStoryboard Compatible

Hi

Does this work with storyboards?

there is a bug with parallaxHeaderViewWithSubView:

hi, thanks for your code
i attempt to use this method to creat a headerView. my subView has a button for login. when i clicked login button to push to loginViewController and back to root, the bluredImageView is malposition.

finally，i fix this bug by following code：

• (void)refreshBlurViewForNewImage
  {
  UIImage *screenShot;
  if (self.subView) {
  screenShot = [self getImageFromView:self.subView];
  }else{
  screenShot = [self getImageFromView:self];
  }
  screenShot = [screenShot applyBlurWithRadius:5 tintColor:[UIColor colorWithWhite:0.6 alpha:0.2] saturationDeltaFactor:1.0 maskImage:nil];
  self.bluredImageView.image = screenShot;
  self.bluredImageView.alpha = 0.0f;
  }

and , i find the screenShot method in the code always flicker when it is called, so i instead of method :
-(UIImage *)getImageFromView:(UIView *)orgView{
UIGraphicsBeginImageContext(orgView.bounds.size);
[orgView.layer renderInContext:UIGraphicsGetCurrentContext()];
UIImage *image = UIGraphicsGetImageFromCurrentImageContext();
UIGraphicsEndImageContext();
return image;
}
Forgive my rude，may it's my own mistack, thancks a lot.

Typo in Swift sample code

The swift sample code does not setup the view properly. It should be using the width not the height of the tableview.
let headerView: ParallaxHeaderView = ParallaxHeaderView.parallaxHeaderViewWithImage(UIImage(named: "YourImageName"), forSize: CGSizeMake(self.tableview.frame.size.width, 300)) as ParallaxHeaderView

Auto SlideShow image to header

How can i Edit Header View to use multi image with paging enable & Parallex together?

Page Control

Is there is any way to include the page control to the parallax effect.

Swift 2

Is it compatible with swift 2?

I am trying to implement this with Xcode7 and swift 2.

will it be possible to do from storyboard?

is there any example for it?

Thanks in advance.. :)

How to keep a certain boundary not disappear?

Hi! @Vinodh-G

Like the picture:

keep the header certain boundary not disappear, aways show in TableView.

Jack

Take time to load the view

Hi, nice plugin.
I have one issue. I have navigation controller. My root view controller is FirstView and SecondView contains tableview with parallaxTableViewHeader. Now when i push from FirstView to SecondView it will take time to push to SecondView. (parallaxtableviewheader setup takes time to load the second view)
Can anyone give the suggestion to resolve this issue.

Thanks.

Extreme scrolling causes blur effect bug

Hey,

What a brilliant parallax effect! Excellent job. I was only wondering if there was a way to fix this error:

What it is:

What it should be:

This occurs in the following circumstances:

1. Scroll up to cover the header and reveal bottom cells
2. Scroll very vigorously in one movement down again to reveal the header
3. No side expansion with bounce or anything happens, it just increases in height and stays blurred.

A thing I have noticed is that the less the kParallaxDeltaFactor, the less the bug. I have it set a 1.0f. (The nav bar has nothing to do with it).

Any help would be greatly appreciated.

Any pod file available ?

Any pod file available ?

sticky?

can it be sticky?