Question

I am trying to archieve ns mustable array with images, my code looks like:

//in my .h file I have
#define kName @"name"
#define kEmail  @"email"
#define kPhone  @"phone"
#define kDetail @"detail"
#define kImages @"images"
#define kRequestDate  @"requestDate"
#define kRequestSent @"status"

@interface BAPRequest : NSObject
@property (nonatomic) NSString *name;
@property (nonatomic) NSString *email;
@property (nonatomic) NSString *phone;
@property (nonatomic) NSString *detail;
@property (nonatomic) NSMutableArray *images;
@property (nonatomic) NSDate *requestDate;
@property (nonatomic) BOOL requestSent;
@end

//in my .m file I have
#import "BAPRequest.h"

@implementation BAPRequest

@synthesize name, email, phone, detail;
@synthesize images;
@synthesize requestDate;
@synthesize requestSent;

- (void)encodeWithCoder:(NSCoder *)encoder{
  [encoder encodeObject:name forKey:kName];
  [encoder encodeObject:email forKey:kEmail];
  [encoder encodeObject:phone forKey:kPhone];
  [encoder encodeObject:detail forKey:kDetail];
  [encoder encodeObject:images forKey:kImages];
  [encoder encodeObject:requestDate forKey:kRequestDate];
  [encoder encodeBool:requestSent forKey:kRequestSent];
}

- (id)initWithCoder:(NSCoder *)decoder{
  name = [decoder decodeObjectForKey:kName];
  email = [decoder decodeObjectForKey:kEmail];
  phone = [decoder decodeObjectForKey:kPhone];
  detail = [decoder decodeObjectForKey:kDetail];
  images = [decoder decodeObjectForKey:kImages];
  requestDate = [decoder decodeObjectForKey:kRequestDate];
  requestSent = [decoder decodeBoolForKey:kRequestSent];
  return self;
}
@end

of course I also have the NSKeyedArchiver codes as well just like everyone else.

Everything else does archive properly, when I save then load them, it seems all working.

But archiving images seems not.

I do have a MutableArray archiving each BAPObjects as well before archive, wonder is it because ios doesn’t support archiving MutableArray inside MutableArray or is it just because I can’t archive images easily?

Cheers
Phil

Answer 1

to archive an image dont use

Instead convert the UIImage to NSData representations using by using
UIImageJPEGRepresentation or UIImagePNGRepresentation.

Then archive the NSMutableArray

Edit:
You will have to replace the items that you want to save in the NSMutableArray with NSData

NSData *imageData = UIImagePNGRepresentation([your_array objectAtIndex:0]);

Replace the the UIImage with the imageData