ios开发的几句话

1 ：如果无法保证子类行为的一致性，那么就用委托

If the subClass cann't keep with superClass,use delegate rather than inheritance.

2:   屏幕上看到的，都是 UIVew

Everything you see on Screen is UIView.

3:  如果对性能要求高，慎用 Interface Build

if application's performance is important,be discreet for the interface build.

 

4:  copy是创建， retain是引用

the copy operation is create a new one,but the retain operation is just a reference.

 

5 ：alloc需要 release,convenient 不需要 release

alloc method need corresponding release method,but convenient method not.

 

6:   加载到 NSArray/NSMutableArray 里的对象，不需要负责 release

The objects added to NSArray/NSMutableArray need not to be released.

7:  IBOutlet,IBAction 为你开启了访问 Interface Build 中对象的大门

IBOutlet and IBAction open the door to access the objects in Interface build.

 

8:  UIApplicationDelegate 负责应用程序的生命周期，而 UIViewController 负责 View 的生命周期

UIApplicationDelegate is responsible for the application life cycle,but UIViewController for the UIView.

9: 为了程序的健壮性，尽量实现 Delegate 的生命周期函数

if you want to develop a robust application,implement the life cycle methods as more as possbile.

10: 触摸的不是 UIEvent, 而是 NSSet 的 UIView

what you touch on screen is not UIEvent but UIView