gistfile1.m

// .h file

@interface LessonManager : NSObject

@property (strong, nonatomic) NSString * imageTitle;

+ (instancetype) sharedInstance;

@end


// .m mfile

@implementation LessonManager

+ (instancetype)sharedInstance
{
    // this whole thing ensures that this code is run once (at most), the plist parsing happens lazily,
    // first time you call [LessonManager sharedInstance]
    static dispatch_once_t once;
    static id sharedInstance;
    dispatch_once(&once, ^{
        
        sharedInstance = [[self alloc] init];
        
    });
    return sharedInstance;
}

-(id) init
{
    self = [super init];
    if (self) {
        // this is your code I copied here from your email
        NSDictionary *dictionary = [NSDictionary dictionaryWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"LessonContent1" ofType:@"plist"]];
        
        NSArray *arrayList = [NSArray arrayWithArray:[dictionary objectForKey:@"LessonOneArray"]];
        
        // Now a loop through Array to fetch single Item from catList which is Dictionary
        [arrayList enumerateObjectsUsingBlock:^(id obj, NSUInteger index, BOOL *stop) {
            
            self.imageTitle =[obj valueForKey:@"ImageName"];

        }];
    }
    return self;
}

@end