BMACollectionBatchUpdates 1.1.2

Maintained by Rafael Lopez Diez, Viacheslav Radchenko.

You want to add pod 'BMACollectionBatchUpdates', '~> 1.1' similar to the following to your Podfile:

target 'MyApp' do
  pod 'BMACollectionBatchUpdates', '~> 1.1'
end

Then run a pod install inside your terminal, or from CocoaPods.app.

Alternatively to give it a test run, run the command:

pod try BMACollectionBatchUpdates

BMACollectionBatchUpdates 1.1.2

By
Vladimir Magaziy

BMACollectionBatchUpdates is a set of classes to generate updates and extensions to UICollectionView and UITableView to perform them safely in a batch manner.

How to use

In order to generate the mentioned updates it has to make collection item and section conform the BMAUpdatableCollectionItem andBMAUpdatableCollectionItem protocols respectively:

@interface BMAExampleItemsSection : NSObject <BMAUpdatableCollectionSection>
@end

@interface BMAExampleItem : NSObject <BMAUpdatableCollectionItem>
@end

Once both old and new data models are available, it has to calculate changes and apply them:

@implementation BMAExampleCollectionViewController

- (void)setSections:(NSArray *)sections {
    [BMACollectionUpdate calculateUpdatesForOldModel:self.sections
                                            newModel:sections
                               sectionsPriorityOrder:nil
                                eliminatesDuplicates:YES
                                          completion:^(NSArray *sections, NSArray *updates) {
                                                [self.collectionView bma_performBatchUpdates:updates applyChangesToModelBlock:^{
                                                    _sections = sections;
                                                } reloadCellBlock:^(UICollectionViewCell *cell, NSIndexPath *indexPath) {
                                                    [self reloadCell:cell atIndexPath:indexPath];
                                                } completionBlock:nil];
                                          }];
}

@end

@implementation BMAExampleTableViewController

- (void)setSections:(NSArray *)sections {
    [BMACollectionUpdate calculateUpdatesForOldModel:self.sections
                                            newModel:sections
                               sectionsPriorityOrder:nil
                                eliminatesDuplicates:YES
                                          completion:^(NSArray *sections, NSArray *updates) {
                                                [self.collectionView bma_performBatchUpdates:updates applyChangesToModelBlock:^{
                                                    _sections = sections;
                                                } reloadCellBlock:^(UITableViewCell *cell, NSIndexPath *indexPath) {
                                                    [self reloadCell:cell atIndexPath:indexPath];
                                                } completionBlock:nil];
                                          }];
}

@end

How to install

Manually

Clone, add as a submodule or download.
Add all the files under BMACollectionBatchUpdates to your project.
Make sure your project is configured to use ARC.

License

Source code is distributed under MIT license.

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