objcruntime挂载

#import

//挂载对象所需要的参数&＃xff08;UIAlertView挂载对象&＃xff09;
static const char kRepresentedObject;//挂载
- (void)AssociatedObjectTEST
{UIAlertView *alert &＃61; [[UIAlertView alloc]initWithTitle:&＃64;"提示" message:&＃64;"test Runtime" delegate:self cancelButtonTitle:&＃64;"取消" otherButtonTitles:&＃64;"去看看", nil];alert.tag &＃61; 9999;objc_setAssociatedObject(alert, &kRepresentedObject,&＃64;"我是被挂载的",OBJC_ASSOCIATION_RETAIN_NONATOMIC);[alert show];}- (void)alertView:(UIAlertView *)alertView clickedButtonAtIndex:(NSInteger)buttonIndex
{if (buttonIndex &＃61;&＃61; 1){NSString *str &＃61; objc_getAssociatedObject(alertView,&kRepresentedObject);NSLog(&＃64;"%&＃64;",str);}
}