xcode 替换已弃用的 NSNibLoading 方法（loadNibFile:、loadNibNamed: 等）？
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Replacements for the deprecated NSNibLoading methods (loadNibFile:, loadNibNamed:, etc.)?
提问by maseth
I have found that the NSNibLoading methods in NSBundle:
我发现 NSBundle 中的 NSNibLoading 方法：
+[NSBundle loadNibFile:externalNameTable:withZone:]
+[NSBundle loadNibNamed:owner:]
-[NSBundle loadNibFile:externalNameTable:withZone:]
have all been marked deprecated in 10.8 - what is the proper way to load the nibs in 10.8 and later?
在 10.8 中都被标记为弃用 - 在 10.8 及更高版本中加载笔尖的正确方法是什么？
I'm trying to create a custom sheet in my app, do I have to create NSWindowControllerwith initWithWindowNibNamefor the custom sheet?
我想创建我的应用程序自定义的纸张，我必须创建NSWindowController具有initWithWindowNibName自定义纸张？
采纳答案by Jay
The NSBundleclass method loadNibNamed:owner:is deprecated in OS X v10.8,loadNibNamed:owner:topLevelObjects:is notand the comments in the documentationstate why:
本NSBundle类方法loadNibNamed:owner:是在OS X v10.8过时，loadNibNamed:owner:topLevelObjects:是不是和意见的文件状态原因：
Unlike legacy methods, the objects adhere to the standard cocoa memory management rules; it is necessary to keep a strong reference to them by using IBOutlets or holding a reference to the array to prevent the nib contents from being deallocated.
与遗留方法不同，对象遵循标准的可可内存管理规则；有必要通过使用 IBOutlets 或持有对数组的引用来保持对它们的强引用，以防止 nib 内容被释放。
回答by Dave Higgins
If your app is going to support Lion, then loadNibNamed:owner:topLevelObjects:will not fire and you'll get an exception (unrecognized selector) when run on Lion. After some searching around I came up with this:
如果您的应用程序将支持 Lion，则loadNibNamed:owner:topLevelObjects:不会触发，并且在 Lion 上运行时您将收到异常（无法识别的选择器）。经过一番搜索，我想出了这个：
// loadNibNamed:owner:topLevelObjects was introduced in 10.8 (Mountain Lion).
// In order to support Lion and Mountain Lion +, we need to see which OS we're
// on. We do this by testing to see if [NSBundle mainBundle] responds to
// loadNibNamed:owner:topLevelObjects: ... If so, the app is running on at least
// Mountain Lion... If not, then the app is running on Lion so we fall back to the
// the older loadNibNamed:owner: method. If your app does not support Lion, then
// you can go with strictly the newer one and not deal with the if/else conditional.
if ([[NSBundle mainBundle] respondsToSelector:@selector(loadNibNamed:owner:topLevelObjects:)]) {
// We're running on Mountain Lion or higher
[[NSBundle mainBundle] loadNibNamed:@"NibName"
owner:self
topLevelObjects:nil];
} else {
// We're running on Lion
[NSBundle loadNibNamed:@"NibName"
owner:self];
}
If you really want to use topLevelObjects:&arrayfor Mountain Lion +, and you also want to support Lion, it looks like you will need to fall back on loadNibFile:externalNameTable:withZone: (available as both a class and instance method) for the Lion condition (I could be wrong about this one). I'm getting the impression that loadNibNamed:owner:topLevelObjects:was created to replace this.
如果您真的想topLevelObjects:&array用于 Mountain Lion +，并且您也想支持 Lion，那么对于 Lion 条件 (我可能是错的）。我得到的印象loadNibNamed:owner:topLevelObjects:是为了取代它而创造的。
I've also read elsewhere that when using the newer loadNibNamed:owner:topLevelObjects:for a sheet that you should uncheck "Release When Closed" for the sheet (window). This should be taken care of when you close the sheet:
我还在其他地方读到过，当使用较新的loadNibNamed:owner:topLevelObjects:工作表时，您应该取消选中工作表（窗口）的“关闭时发布”。关闭工作表时应注意这一点：
[self.sheet close];
self.sheet = nil;
I'm not sure exactly what should be done about that checkbox if you're opening a non-modal window. Any ideas?
如果您要打开非模态窗口，我不确定应该对该复选框做些什么。有任何想法吗？
