我无法从保存的数据加载符合NSCoding协议的自定义类的实例。我的课有一个UIImage属性,当我分配一个新的UIImage它的程序崩溃与exc_bad_access。exc_bad_access从NSKeyedUnarchiver返回的对象
在视图控制器我宣布我的对象,像这样:
@interface SomeViewController : UIViewController {
IBOutlet UIImageView *imageView;
SomeClass *myObject;
}
@property (nonatomic, retain) SomeClass *myObject;
@property (nonatomic, retain) IBOutlet UIImageView *imageView;
然后在.m文件它被用作如下:
@synthesize myObject;
@synthesize imageView;
-(void)viewDidLoad{
myObject = [NSKeyedUnarchiver unarchiveObjectWithFile:someDataPath];
imageView.image = myObject.image;
}
到目前为止好。但后来我选了一个新的形象,并尝试将其设置为myObject的“图像”属性,至于我可以通过代码单步讲,这将引发一个EXC_BAD_ACCESS
-(void)imagePickerController:(UIImagePickerController *)picker didFinishPickingMediaWithInfo:(NSDictionary *)info {
[picker dismissModalViewControllerAnimated:YES];
UIImage *image = [info objectForKey:@"UIImagePickerControllerOriginalImage"];
[imageView setImage:image];
myObject.image = image;
}
,它是导致exc_bad_access的最后一行。我究竟做错了什么?
你为什么在didFinishPickingMediaWithInfo设置myObject的:方法? – 2010-10-22 21:10:05