原文:View Programming Guide for iOS 1 Introduction 先熟悉一下基本概念. Window Windows do not have any visible content themselves but provide a basic container for your application's views. Every application has at least one window that displays the application'…
原文:View Programming Guide for iOS View and Window Architecture Views and windows present your application’s user interface and handle the interactions with that interface. UIKit and other system frameworks provide a number of views that you can use a…
Custom Layouts: A Worked Example Creating a custom collection view layout is simple with straightforward requirements, but the implementation details of the process may vary. Your layout must produce layout attributes objects for every view your coll…
Views Because view objects are the main way your application interacts with the user, they have many responsibilities. Here are just a few: 因为视图对象是应用程序跟用户交互的主要方式,所以它们有很多责任.以下是其中一小部分: Layout and subview management 布局和子视图管理 A view defines its own defau…
Next About iOS Collection Views 关于iOS Collection Views A collection view is a way to present an ordered set of data items using a flexible and changeable layout. The most common use for collection views is to present items in a grid-like arrangement,…
Navigating a Data Hierarchy with Table Views 导航数据表视图层次 A common use of table views—and one to which they’re ideally suited—is to navigate hierarchies of data. A table view at a top level of the hierarchy lists categories of data at the most general l…
About Table Views in iOS Apps Table views are versatile user interface objects frequently found in iOS apps. A table view presents data in a scrollable list of multiple rows that may be divided into sections. 表格视图是通用用户界面对象,常常能在iOS应用程序里看到. 表格视图在一个多行的一…
Animations Animations provide fluid visual transitions between different states of your user interface. In iOS, animations are used extensively to reposition views, change their size, remove them from view hierarchies, and hide them. You might use…
Designing Your Data Source and Delegate 设计你的数据源和委托 Every collection view must have a data source object providing it with content to display. The data source object is an object that your app provides. It could be an object from your app’s data mod…
