UIScrollView setup

CalendarViewController.h
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#import "ViewController.h"
#import <UIKit/UIKit.h>

@interface CalendarViewController : ViewController<UIScrollViewDelegate> {
    UIScrollView *myScrollView;
}
- (IBAction)backButton:(id)sender;

@property (nonatomic) IBOutlet UIImageView *scheduleImage;

@end



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CalendarViewController.m File
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@property (copy, nonatomic) UIImage *image;

@synthesize scheduleImage;
- (void)viewDidLoad {
    [super viewDidLoad];
    [self displayImage];
    [self addScrollView];

- (void)displayImage {
    NSString *imagePath;
    NSArray *dirPaths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentDirectoryPath = dirPaths[0];
    NSString *calendarDir = [documentDirectoryPath stringByAppendingString:[NSString stringWithFormat:@"/CalendarFolder/"]];
    NSArray *list = [[NSFileManager defaultManager] contentsOfDirectoryAtPath:calendarDir error:nil];
    for (NSString* file in list) {
        if ([[file pathExtension] isEqualToString: @"png"]) {
//            [[NSFileManager defaultManager] copyItemAtPath:file toPath:calendarDir error:nil];
            imagePath = [calendarDir stringByAppendingPathComponent:file];
        }
    }
    UIImage *image = [[UIImage alloc] initWithContentsOfFile:imagePath];

    [self.scheduleImage setImage:image];
}

-(void)addScrollView{
    myScrollView = [[UIScrollView alloc]initWithFrame:CGRectMake(0, 0, [ [ UIScreen mainScreen ] bounds ].size.width, [ [ UIScreen mainScreen ] bounds ].size.height)];
    myScrollView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"grey.png"]];

    myScrollView.accessibilityActivationPoint = CGPointMake(100, 100);



//    scheduleImage = [[UIImageView alloc]initWithImage:_image];
    [myScrollView addSubview:scheduleImage];

    myScrollView.minimumZoomScale = 0.5;
    myScrollView.maximumZoomScale = 3;
    myScrollView.contentSize = CGSizeMake(scheduleImage.frame.size.width,
                                          scheduleImage.frame.size.height);
    myScrollView.delegate = self;
    [self.view addSubview:myScrollView];
}