uicollectionviewflowlayout

UIWebView和UICollectionViewController的使用 UIWebView UIWebView是iOS内置的浏览器的控件, 可以浏览网页, 打开文档等 .系统自带的Safari浏览器就是通过UIWebView实现的, 能够加载html/htm, pdf, docx, txt等格式的文件. 在iOS7之前, UILabel, UITextFiled 以及 UITextView 都在后台以某种方式使用 WebKit来进行文本布局和渲染. 渲染 : 是CG的最后一道工序, 将所设计内容制作成最终效果图或者动画的过程 . UIWebView的使用 1> 确定要访问的资源 NSURL *url = [NSURL URLWithString : @"http://www.baidu.com"]; 2> 建立网络请求 NSURLRequest *request = [NSURLRequest requestWithURL :url]; 3> UIWebView加载网络请求 [self.webView loadRequest : request]; UIWebView - 实现百度搜索 -(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar { NSString *str = searchBar.text;

iOS流布局UICollectionView系列三——使用FlowLayout进行更灵活布局 一、引言 前面的博客介绍了UICollectionView的相关方法和其协议中的方法，但对布局的管理类UICollectionViewFlowLayout没有着重探讨，这篇博客介绍关于布局的相关设置和属性方法。 UICollectionView的简单使用： http://my.oschina.net/u/2340880/blog/522613 UICollectionView相关协议方法： http://my.oschina.net/u/2340880/blog/522613 通过layout的设置，我们可以编写更加灵活的布局效果。 二、将九宫格式的布局进行升级 在第一篇博客中，通过UICollectionView，我们很轻松的完成了一个九宫格的布局，但是如此中规中矩的布局方式，有时候并不能满足我们的需求，有时我们需要每一个Item展示不同的大小，代码如下： - (void)viewDidLoad { [super viewDidLoad]; // Do any additional setup after loading the view, typically from a nib. UICollectionViewFlowLayout *layout = [

I have a Horizontal UICollectionView like the horizontal Calender in iOS. Paging is enabled but not allowsMultipleSelection. self.allowsMultipleSelection = false self.isPagingEnabled = true There are only 5 cells per page. let cellSize = CGSize(width: self.view.frame.width / 5 , height: 60) CollectionView's height is also 60. didSelectItemAt change background color to .red and didDeselectItem resets it to .white . func collectionView(_ collectionView: UICollectionView, didSelectItemAt indexPath: IndexPath) { let cell = collectionView.cellForItem(at: indexPath) if let cell = cell { cell

I'm using a UICollectionView with the cell width of 67, right now I am using a flow layout. I have 3 cells in a row with 30px space between cells. How can make that distance less, so that I can fit four cells in a row? Does this method have something to do with it? - (UIEdgeInsets)collectionView:(UICollectionView *)collectionView layout:(UICollectionViewLayout*)collectionViewLayout insetForSectionAtIndex:(NSInteger)section { return UIEdgeInsetsMake(10, 10, 10, 10); } This UICollectionViewFlowLayoutDelegate method will help you.. - (CGFloat)collectionView:(UICollectionView *)collectionView

Hello i want to show the collectionView exactly as the above image. I know that it responsible for UICollectionViewFlowLayout, but unable to do it. Help is much appreciated. Here is my code func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, sizeForItemAt indexPath: IndexPath) -> CGSize { let yourWidth = (collectionView.bounds.width - 4) / 3.0 let yourHeight = yourWidth return CGSize(width: yourWidth, height: yourHeight) } Your answer is in your question bro some short of conditions func collectionView(_ collectionView: UICollectionView,

For UICollectionView's dynamic height cells we use, if let layout = self.collectionViewLayout as? UICollectionViewFlowLayout { layout.estimatedItemSize = UICollectionViewFlowLayoutAutomaticSize } with the proper constraint of height and width, it works fine with iOS 11.* versions but it breaks and does not make the cells dynamic for iOS 12.0 ale84 In my case, I solved this by explicitly adding the following constraints to the cell's contentView. class Cell: UICollectionViewCell { // ... override func awakeFromNib() { super.awakeFromNib() // Addresses a separate issue and prevent auto layout