mirror of
https://github.com/tappollo/IGListKit.git
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fb9d8cea8e
Summary: Disables `prefetchEnabled` by default on `IGListCollectionView` (#318). - [x] All tests pass. Demo project builds and runs. - [x] I added tests, an experiment, or detailed why my change isn't tested. - [x] I have reviewed the [contributing guide](https://github.com/Instagram/IGListKit/blob/master/.github/CONTRIBUTING.md) Closes https://github.com/Instagram/IGListKit/pull/323 Differential Revision: D4319761 Pulled By: rnystrom fbshipit-source-id: a3ea4c3d1d1f3123a60c8168fb333e73ab93cb1e
52 lines
1.6 KiB
Objective-C
52 lines
1.6 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 "IGListCollectionView.h"
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@implementation IGListCollectionView
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- (instancetype)initWithFrame:(CGRect)frame collectionViewLayout:(UICollectionViewLayout *)layout {
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if (self = [super initWithFrame:frame collectionViewLayout:layout]) {
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UIColor *backgroundAppearanceColor = (UIColor *) [[[self class] appearance] backgroundColor];
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if (!backgroundAppearanceColor) {
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self.backgroundColor = [UIColor whiteColor];
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}
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if ([self respondsToSelector:@selector(setPrefetchingEnabled:)]) {
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self.prefetchingEnabled = NO;
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}
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self.alwaysBounceVertical = YES;
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}
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return self;
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}
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- (instancetype)initWithCoder:(NSCoder *)aDecoder {
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if (self = [super initWithCoder:aDecoder]) {
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if ([self respondsToSelector:@selector(setPrefetchingEnabled:)]) {
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self.prefetchingEnabled = NO;
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}
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}
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return self;
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}
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- (void)layoutSubviews {
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/**
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UICollectionView will sometimes lay its cells out with an animation. This is especially noticeable on older devices
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while scrolling quickly. The simplest fix is to just disable animations for -layoutSubviews, which is where cells
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and other views inside the UICollectionView are laid out.
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*/
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[UIView performWithoutAnimation:^{
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[super layoutSubviews];
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}];
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}
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@end
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