mirror of
https://github.com/Instagram/IGListKit
synced 2026-05-06 06:58:26 +00:00
e2c2d3dcec
Summary: Working on porting our collection view layout to IGListKit. I'm doing this because its a solid layout, and we just finished preparing it to work with inline sections. It is designed to work in tandem with IGListKit, so we're adding it. This is still a WIP as I add more tests, but I'd love as much feedback as possible. Aside from the glob of header documentation, this has the following features: - Infinite sections that each have infinite items. Sections and items can fall inline. When they break the width of their container they will fall on the next row. - Sections can have their own insets, line spacing, and interitem spacing. - Sticky header support! When you use headers, it will always newline the section. - Maximum width with a border decoration view - Use this to pinch in your content on larger devices Followup to #423 - [ ] ~~Move decoration view support to delegate~~ removed - [x] Unit test changing [top y sticky inset](https://coveralls.io/builds/9977284/source?filen Closes https://github.com/Instagram/IGListKit/pull/484 Differential Revision: D4547760 Pulled By: rnystrom fbshipit-source-id: 879e2da16eb78bb6a90967e77d9ad0bbf7c69594
70 lines
3.1 KiB
Objective-C
70 lines
3.1 KiB
Objective-C
/**
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* Copyright (c) 2016-present, Facebook, Inc.
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* All rights reserved.
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*
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* This source code is licensed under the BSD-style license found in the
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* LICENSE file in the root directory of this source tree. An additional grant
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* of patent rights can be found in the PATENTS file in the same directory.
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*/
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#import "IGLayoutTestDataSource.h"
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#import "IGLayoutTestItem.h"
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#import "IGLayoutTestSection.h"
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static NSString * const kCellIdentifier = @"cell";
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static NSString * const kHeaderIdentifier = @"header";
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@implementation IGLayoutTestDataSource
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- (void)configCollectionView:(UICollectionView *)collectionView {
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[collectionView registerClass:[UICollectionViewCell class]
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forCellWithReuseIdentifier:kCellIdentifier];
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[collectionView registerClass:[UICollectionReusableView class]
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forSupplementaryViewOfKind:UICollectionElementKindSectionHeader
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withReuseIdentifier:kHeaderIdentifier];
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}
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#pragma mark - UICollectionViewDataSource
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- (NSInteger)numberOfSectionsInCollectionView:(UICollectionView *)collectionView {
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return [self.sections count];
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}
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- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section {
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return [self.sections[section].items count];
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}
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- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath {
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return [collectionView dequeueReusableCellWithReuseIdentifier:kCellIdentifier forIndexPath:indexPath];
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}
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- (UICollectionReusableView *)collectionView:(UICollectionView *)collectionView viewForSupplementaryElementOfKind:(NSString *)kind atIndexPath:(NSIndexPath *)indexPath {
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return [collectionView dequeueReusableSupplementaryViewOfKind:UICollectionElementKindSectionHeader
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withReuseIdentifier:kHeaderIdentifier
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forIndexPath:indexPath];
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}
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#pragma mark - UICollectionViewDelegateFlowLayout
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- (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout insetForSectionAtIndex:(NSInteger)section {
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return self.sections[section].insets;
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}
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- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout sizeForItemAtIndexPath:(NSIndexPath *)indexPath {
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return self.sections[indexPath.section].items[indexPath.item].size;
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}
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- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumLineSpacingForSectionAtIndex:(NSInteger)section {
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return self.sections[section].lineSpacing;
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}
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- (CGFloat)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout minimumInteritemSpacingForSectionAtIndex:(NSInteger)section {
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return self.sections[section].interitemSpacing;
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}
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- (CGSize)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout *)collectionViewLayout referenceSizeForHeaderInSection:(NSInteger)section {
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return CGSizeMake(CGRectGetWidth(collectionView.bounds), self.sections[section].headerHeight);
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}
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@end
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