ViewController.h
@interface ViewController : UIViewController@property (readonly, getter=isCancelled) BOOL cancelled;@end
GViewController.h
@interface GViewController : ViewController@property (readwrite, nonatomic, assign, getter = isCancelled) BOOL cancelled;@end
@property这行会显示告警信息,如下:
GViewController.m
@implementation GViewController- (void)viewDidLoad { [super viewDidLoad]; self.cancelled = YES;}@end
运行到 self.cancelled = YES这行,会提示:
解决办法:
问题都找到了,自己想办法吧. -_-