UICollectionView+ARDynamicHeightLayoutCell

• An simple category for caculating autolayout UICollectionViewCell size. Automatic manage cell's size cache, automatic invalidate, most improve efficiency.

Demo gif

Support

• A prototype cell in storyboard

• -registerNib:forCellReuseIdentifier:

• -registerClass:forCellReuseIdentifier:

Usage

if your cell use autolayout , all you need just to do like this:

Fixed width

#import "UICollectionView+ARDynamicHeightLayoutCell.h"

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    return [collectionView ar_sizeForCellWithIdentifier:@"DynamicHeightCell" fixedWidth:300 configuration:^(id cell) {

       //configuration your cell
        FeedModel *feed = self.feeds[indexPath.row];
        [cell filleCellWithFeed:feed];

    }];
}

Fixed height

#import "UICollectionView+ARDynamicHeightLayoutCell.h"

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    return [collectionView ar_sizeForCellWithIdentifier:@"DynamicHeightCell" fixedHeight:400 configuration:^(id cell) {
    	//configuration your cell
           FeedModel *feed = self.feeds[indexPath.row];
           [cell filleCellWithFeed:feed];
	}
}

Dynamic size

#import "UICollectionView+ARDynamicHeightLayoutCell.h"

-(CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath
{
    return [collectionView ar_sizeForCellWithIdentifier:@"DynamicHeightCell" configuration:^(id cell) {
    	//configuration your cell
           FeedModel *feed = self.feeds[indexPath.row];
           [cell filleCellWithFeed:feed];
	}
}

Install

pod 'UICollectionView-ARDynamicHeightLayoutCell', :git => 'https://github.com/AugustRush/UICollectionView-ARDynamicHeightLayoutCell.git'

Release Versions

• v1.0

  add cache for cell size height, improve efficiency（automatic invalidate）

• v0.7

  add Support for StoryBoard prototype cell

• v0.6

  fixed Height caculated bug and support Dynamic size cell

• v0.5

  support to caculate size for UICollectionView Cell

ToDo

• pre caculate cache