CSStickyHeaderFlowLayout

by CSStickyHeaderFlowLayout

CSStickyHeaderFlowLayout / CSStickyHeaderFlowLayout

UICollectionView replacement of UITableView. Do even more like Parallax Header, Sticky Section Heade...

5.1K Stars 616 Forks Last release: 7 months ago (0.2.12) MIT License 131 Commits 15 Releases

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CSStickyHeaderFlowLayout

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Parallax, Sticky Headers, Growing image heading, done right in one UICollectionViewLayout.

Installation

Version Platform

Cocoapods

CSStickyHeaderFlowLayout is available through CocoaPods, to install it simply add the following line to your Podfile:

pod "CSStickyHeaderFlowLayout"

Carthage

CSStickyHeaderFlowLayout is also available with Carthage. Add

github "CSStickyHeaderFlowLayout/CSStickyHeaderFlowLayout"
to your Cartfile

Alternatively, you can just drag the files from

CSStickyHeaderFlowLayout / Classes
into your own project.

Usage (Swift/Code)

Documentation is coming soon. For now please open

CSStickyHeaderFlowLayout.xcworkspace
>
SwiftDemo
target.

Usage (CocoaPods/Objective-C/Storyboard)

To run the example project; clone the repo, and run

pod install
from the Project directory first.

1. Setting up the Sticky Section Header

Configure your collection view to use

CSStickyHeaderFlowLayout
. Here's an example on how you to do it in Storyboard.

Now all your section headers will get the sticky effect like table view. You can disable it with one line of code.

@property (nonatomic) BOOL disableStickyHeaders;

2. Setting up the Collection View Header

We'll be using supplementary views for our parallax header. Here's an example on how use a nib file for that purpose:

Register that nib file to your collection view controller in code:

#import "CSStickyHeaderFlowLayout.h"

  • (void)viewDidLoad {

    [super viewDidLoad];

    // Locate your layout CSStickyHeaderFlowLayout *layout = (id)self.collectionViewLayout; if ([layout isKindOfClass:[CSStickyHeaderFlowLayout class]]) {

      layout.parallaxHeaderReferenceSize = CGSizeMake(320, 200);

    }

    // Locate the nib and register it to your collection view UINib *headerNib = [UINib nibWithNibName:@"CSGrowHeader" bundle:nil]; [self.collectionView registerNib:headerNib

        forSupplementaryViewOfKind:CSStickyHeaderParallaxHeader
               withReuseIdentifier:@"header"];

}

Implement

-[UICollectionViewDataSource collectionView:viewForSupplementaryElementOfKind:atIndexPath:]
- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath {

// Check the kind if it's CSStickyHeaderParallaxHeader
if ([kind isEqualToString:CSStickyHeaderParallaxHeader]) {

    UICollectionReusableView *cell = [collectionView dequeueReusableSupplementaryViewOfKind:kind
                                                                        withReuseIdentifier:@"header"
                                                                               forIndexPath:indexPath];

    return cell;

} else if ([kind isEqualToString:UICollectionElementKindSectionHeader]) {
    // Your code to configure your section header...
} else {
    // other custom supplementary views
}
return nil;

}

That's it. You'll be able to get the header you wanted using the best practice.

Configuring other effects are really just the way how you setup the header cell, by combining different settings in the minimal exposed properties in CSStickyHeaderFlowLayout.h

@property (nonatomic) CGSize parallaxHeaderReferenceSize;
@property (nonatomic) CGSize parallaxHeaderMinimumReferenceSize;
@property (nonatomic) BOOL disableStickyHeaders;

Run the project examples and it'll shows you exactly how you achieve different effects.

Updates

  • 0.2.12: Add Swift 5 Demo

  • 0.2.11: Add support for carthage.

  • 0.2.10: Fixed issue because attributes were not copied and datasource might have been niled

  • 0.2.9: Remove Supplementry Header Layout Attribute to prevent crash when returning nil and while is CGSizeZero

  • 0.2.8: Fixed a visual issue when animating contentInsets #85 and crash when dragging cells #69

  • 0.2.7: Fixed scroll indicator covered by cell

  • 0.2.6: Fixing that section header being covered by cell after perform batch update

  • 0.2.5: Fixing a crash when quickly popping back to a view controller using the parallax header

  • 0.2.4: Possibly fix for a crash when parallaxHeaderReferenceSize is changed

  • 0.2.3: Enabled iPhone 6 screen sizes, reverted a patch and fixed a visual bug and content tapping bug.

  • 0.2.2: Fix 1px header and zIndex problem, thanks @m1entus and @Xyand

  • 0.2.1: Fix crash on reloadData in collection view when header is offscreen, thanks @jessesquires

  • 0.2: Added custom UICollectionViewLayoutAttributes to support more advanced example (Spotify App)

  • 0.1.1: Minor fixes for default number of sections, thanks @miwillhite

  • 0.1: Initial Release

Who's using it?

We've a wiki page for that, feel free to add your projects there!

Requirements

  • Xcode 5
  • iOS 7 (I haven't really test on iOS 6 but it should work if you're using iOS 6 compatible Storyboard)

Author

James Tang, [email protected]

License

CSStickyHeaderFlowLayout is available under the MIT license. See the LICENSE file for more info.

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