我注意到MacApp模板创建了以下内容:
@Interface AppDelegate: 国家统计局对象
@property( 指派) IB outlet NS Window * 窗口;
根据 ARC 指南, 所有顶级对象都应该使用强值属性, 但这是使用指定属性。 有人会解释原因吗?
我注意到MacApp模板创建了以下内容:
@Interface AppDelegate: 国家统计局对象
@property( 指派) IB outlet NS Window * 窗口;
根据 ARC 指南, 所有顶级对象都应该使用强值属性, 但这是使用指定属性。 有人会解释原因吗?
窗口一般会由 File S所有者
" 拥有 ", 通常是您的 NSApplication
实例(主要nib) 或 NSWindowcurrent
实例, 不一定是应用程序代表或窗口代表。 这就是为什么在代表类中提及内容的强度不合适 。
在Mac OS/X 10.7中, NSWindow
(连同若干其他可可类)没有支持通过ARC进行管理,因此,对 NSWindow
的宣布属性必须 sign
而不是 sign
而不是 sign
或 /weak
。见"https://developer.apple.com/libraryary/mac/#releleasenoleasenotets/ObjectiveC/RN-transtition ToARC/Introduction.html" rel=“nofolptection C/RN-Trading ToARC/Industruction/aredustration > 文件的“rel=Reference < a reformation a recodection a recodection a recodection a recodustrational a recodustration a rest res a redustrational a redustration a redustrational
在10.8中,看来NSWindow不在名单上,但Xcode仍在生成 sign
属性,而不是weak
。
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