这些是调用警告的行: @property(nonatomic,retain)NSString * Title; @property(nonatomic,retain)NSString * Subtitle;
我的警告是:属性'title''copy'属性与从'MKAnnotation'继承的属性不匹配
有什么想法吗?
提前致谢!
#import <Foundation/Foundation.h>
#import <MapKit/MapKit.h>
@interface MapAnnotation : NSObject <MKAnnotation> {
CLLocationCoordinate2D coordinate;
NSString *title;
NSString *subtitle;
int listIndex;
}
@property (nonatomic) CLLocationCoordinate2D coordinate;
@property (nonatomic, retain) NSString *Title;
@property (nonatomic, retain) NSString *Subtitle;
@property (nonatomic) int listIndex;
@end
答案 0 :(得分:29)
变化:
@property(nonatomic,retain)NSString * Title;
成:
@property(非原子,复制)NSString * title;