NSUserDefaults的使用我无法保存图片和崩溃我的应用程序,我还使用自定义类的UserInfo其中使用iPhone:如何使用NSUserDefaults存储UIImage?
-(void)encodeWithCoder:(NSCoder *)encoder
{
NSData *imageData = UIImagePNGRepresentation(categoryImage);
[encoder encodeObject:categoryName forKey:@"name"];
[encoder encodeObject:imageData forKey:@"image"];
}
- (ID)的initWithCoder:(NSCoder *)解码器和userInfo.categoryImage是UIImage的变量。
原因: ' - [UIImage的encodeWithCoder:]:无法识别的选择发送到实例0x7676a70'
userInfo = [[UserInfo alloc] init];
userInfo.categoryName = categoryName.text;
NSLog(@"Category Name:--->%@",userInfo.categoryName);
userInfo.categoryImage = image;
appDelegate.categoryData = [[NSMutableDictionary dictionaryWithObjectsAndKeys:
userInfo.categoryName, @"name",userInfo.categoryImage,@"image", nil] mutableCopy];
[appDelegate.categories addObject:appDelegate.categoryData];
NSLog(@"Category Data:--->%@",appDelegate.categories);
[appDelegate.categories addObject:userInfo.categoryName];
[appDelegate.categories addObject:userInfo.categoryImage];
[self saveCustomObject:userInfo.categoryName];
[self saveCustomObject:userInfo.categoryImage];
-(void)saveCustomObject:(UserInfo *)obj
{
appDelegate.userDefaults = [NSUserDefaults standardUserDefaults];
NSData *myEncodedObject = [NSKeyedArchiver archivedDataWithRootObject:obj];
[appDelegate.userDefaults setObject:myEncodedObject forKey:@"myEncodedObjectKey"];
}
所以请帮助我,我怎么可以存储和使用nsusedefaults检索的UIImage ???
saveCustomObject几乎无法工作,因为它存储了同一个键的每个给定对象。 – Davyd