cocoa - IBOutlet 属性薄弱和 ARC 问题

Question

我的代码:

@interface WBMessageTableCellView : NSTableCellView

@property (weak) IBOutlet NSTextField *authName;
@property (weak) IBOutlet NSTextField *createdTime;
@property (weak) IBOutlet NSImageView *userProfileImageView;

@property (weak) IBOutlet NSTextView *statusTextView;

@end

但是我收到了这个错误， 这是怎么回事？我必须将我的代码更改为此，并且它有效，

@interface WBMessageTableCellView : NSTableCellView
{
    IBOutlet NSTextView *statusTextView;
}

@property (weak) IBOutlet NSTextField *authName;
@property (weak) IBOutlet NSTextField *createdTime;
@property (weak) IBOutlet NSImageView *userProfileImageView;

@property NSTextView *statusTextView;

我对此文件打开了 arc，并且该项目是新创建的。不是从非 arc 项目转换而来。

Answer 1

我已将我的评论提升为答案:

Please take a look at this question: Which iOS classes that don't support zeroing weak references? You can't create weak references to classes which don't support weak references to their instances.