一个 使用简单 / 高度自定义 / 两种使用方法 的视差滚动框架。自定义程度之高、耦合度之低、内存占用程度在同类效果开源框架中是相当优秀的。
it's a easy-to-use / highly customize / two way to use parallax effects framework.
pod 'KYParallaxView', '~> 1.0.4'
##本框架有两种使用场景：
Two situations to use this framework：
##1、如果你不需要使用水平滚动的框架，只需要使用效果图中单页垂直滚动效果，那么你只需在你的ViewController中。
If you just wanna use the single vertical scroll view,you should:
#import "KYParallaxVerticalView.h"
KYParallaxVerticalView *parallaxVerticalView= [[KYParallaxVerticalView alloc]initWithFrame:self.view.frame];
[self.view addSubview:parallaxVerticalView];
[parallaxVerticalView bkgImageViewSetImage: [UIImage imageNamed:@"[email protected]"]];// 指定背景图
就可以了。
That's it!
##2、如果你需要使用整个框架，那么你需要在你的ViewController中：
If you wanna use the whole framework.
#import "KYParallaxHorizontalView.h"
KYParallaxHorizontalView *parallaxHorizontalView = [[KYParallaxHorizontalView alloc]initWithFrame:self.view.frame andCollectionDelegate:self];
[self.view addSubview:self.parallaxHorizontalView];
-
然后实现UICollectionDataSource的协议方法：
Then implement the UICollectionDataSource's protocol method:
#pragma mark -- UICollectionDataSource
- (NSInteger)collectionView:(UICollectionView *)collectionView numberOfItemsInSection:(NSInteger)section{
return 5;
}
- (UICollectionViewCell *)collectionView:(UICollectionView *)collectionView cellForItemAtIndexPath:(NSIndexPath *)indexPath{
KYParallaxCollectionCell *cell = (KYParallaxCollectionCell *)[collectionView dequeueReusableCellWithReuseIdentifier:@"HorizontalParallexCell" forIndexPath:indexPath];
/*****自定义cell视图*****/
/*****Custom the vertical scrollview content******/
//设置每个单页的背景图片 Set the background img of every vertical scrollview
[cell.verticalView bkgImageViewSetImage:[UIImage imageNamed:[NSString stringWithFormat:@"bkgImg_%ld.jpg",(long)indexPath.item+1]]];
cell.verticalView.customView.label.text = [NSString stringWithFormat:@"第%ld页",(long)indexPath.item+1];
cell.verticalView.customView.avatar.image = [UIImage imageNamed:[NSString stringWithFormat:@"kitten_%ld",(long)indexPath.item+1]];
cell.verticalView.customView.pic.image = [UIImage imageNamed:[NSString stringWithFormat:@"l%ld.jpg",indexPath.item+1]];
cell.verticalView.scroller.contentOffset = CGPointMake(0, 0); //解决cell同时复用scrollview位置的bug Fix resuing the contentOffset of cell
//...
return cell;
}
-
最后你还需要实现UIScrollViewDelegate中的scrollViewDidScroll方法：
Lastly,you should mplement the UIScrollViewDelegate's protocol method
#pragma mark -- UITableViewDelegate
- (void)scrollViewDidScroll:(UIScrollView *)scrollView{
[self.parallaxHorizontalView parallax:scrollView];
}##3.如何自定义单页滚动视图内容？
How to customize the vertical scroll view's content?
- 你会发现有三个文件. there are three files.
-
你会发现CustomViewXib是这样的：
So you can customize your content in the xib.
-
是的，你可以在这里可视化布局你想要的滚动界面的内容。当然，为了方便自定义内容你还需要把这些视图拖到代码中来：
Also you can use IBOutlet to connect the xib and the code.
@property (strong, nonatomic) IBOutlet UILabel *label;
@property (strong, nonatomic) IBOutlet UIView *box1;
@property (strong, nonatomic) IBOutlet UIView *box2;
@property (strong, nonatomic) IBOutlet UIView *box3;
@property (strong, nonatomic) IBOutlet UIImageView *avatar;
@property (strong, nonatomic) IBOutlet UIImageView *pic;
##版本 ###v1.0.4 使用官方的UICollectionViewFlowLayout,移除自定义Layout。
###v1.0.3 解决了在一个有状态栏的页面使用本框架时UIScrollView会发生偏移的问题。
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