//saving an image
1 - (void)saveImage:(UIImage*)image:(NSString*)imageName {
2
3 NSData *imageData = UIImagePNGRepresentation(image); //convert image into .png format.
4
5 NSFileManager *fileManager = [NSFileManager defaultManager];//create instance of NSFileManager
6
7 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES); //create an array and store result of our search for the documents directory in it
8
9 NSString *documentsDirectory = [paths objectAtIndex:0]; //create NSString object, that holds our exact path to the documents directory
10
11 NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.png", imageName]]; //add our image to the path
12
13 [fileManager createFileAtPath:fullPath contents:imageData attributes:nil]; //finally save the path (image)
14
15 NSLog(@"image saved");
16
17 }
//removing an image
1 - (void)removeImage:(NSString*)fileName {
2
3 NSFileManager *fileManager = [NSFileManager defaultManager];
4
5 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
6
7 NSString *documentsDirectory = [paths objectAtIndex:0];
8
9 NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.png", fileName]];
10
11 [fileManager removeItemAtPath: fullPath error:NULL];
12
13 NSLog(@"image removed");
14
15 }
//loading an image
1 - (UIImage*)loadImage:(NSString*)imageName {
2
3 NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
4
5 NSString *documentsDirectory = [paths objectAtIndex:0];
6
7 NSString *fullPath = [documentsDirectory stringByAppendingPathComponent:[NSString stringWithFormat:@"%@.png", imageName]];
8
9 return [UIImage imageWithContentsOfFile:fullPath];
10
11 }