Rendom Select Background

View.m

NSArray *main_background=[[NSMutableArray alloc]initWithObjects:@"mainscreen2.png.jpg",@"background_2.jpg",@"background_3.jpg",@"background_4.jpg",@"background_5.jpg",@"background_6.jpg",@"background_7.jpg",@"background_6.jpg",@"background_5.jpg",@"background_3.jpg", nil];

    

    

    bgindx=arc4random() % [main_background count];

    //NSArray *main_img=[[NSArray alloc]initWithObjects:@"mainscreen2.png.jpg", nil];

    

    

    UIGraphicsBeginImageContext(self.view.frame.size);

    [[UIImage imageNamed:[main_background objectAtIndex: bgindx]] drawInRect:self.view.bounds];

    UIImage *image = UIGraphicsGetImageFromCurrentImageContext();