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iOSDev: Saving and Getting Image from NSDocumentDirectory (get image from URL)

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Look the Code"
//Getting the image from URL
-(void)savedPhotoInDocDir:(NSString *) imageURL{
NSData *imageData = [NSData dataWithContentsOfURL:[NSURL URLWithString:imageURL]];
NSFileManager *fileManager = [NSFileManager defaultManager];
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDir = [paths objectAtIndex:0];
//TimeStamp getting random number
int randomNumber = [self getRandomNumber:9 to:9999999999];
//Creating Time stamp for specific name of save Image
NSString * timeStampValue = [NSString stringWithFormat:@"%ld", (long)[[NSDate date] timeIntervalSince1970]];
[self setImagePath:[documentsDir stringByAppendingPathComponent:[NSString stringWithFormat:@"savePhoto%@%d.png",timeStampValue,randomNumber]]];
BOOL isDone =[fileManager createFileAtPath:imagePath contents:imageData attributes:nil];
if(isDone==TRUE){
NSLog(@"Saved Image Document Directory"); }
else {
NSLog(@"Not Save");
}
}
//Generating Random number
-(int)getRandomNumber:(int)from to:(int)to {
return (int)from + arc4random() % (to-from+1);
}
// getting the image
- (UIImage*)getImage_FromName :(NSString *)imageName {
NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,     NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];
NSString *getImagePath = [documentsDirectory stringByAppendingPathComponent:imageName];
UIImage *img = [UIImage imageWithContentsOfFile:getImagePath];
return img;
}
Keep Coding ...
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