How do I save a UIImage to a file?

Question

If I have a UIImage from an imagePicker, how can I save it to a subfolder in the documents directory?

Answer 1

First you should get the Documents directory

/* create path to cache directory inside the application's Documents directory */
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *filePath = [[paths objectAtIndex:0] stringByAppendingPathComponent:@"fileName"];

Then you should save the photo to the file

NSData *photoData = UIImageJPEGRepresentation(photoImage, 1);
[photoData writeToFile:filePath atomically:YES];