gistfile1.txt

@implementation ThemeTableViewController

- (id)initWithStyle:(UITableViewStyle)style
{
    self = [super initWithStyle:style];
    if (self) {
        // Custom initialization
    }
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];
    
    
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"Themes.plist"];
    NSMutableDictionary *savedThemes = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
    if(!savedThemes)
    {
        savedThemes = [[NSMutableDictionary alloc] init];
        [savedThemes setObject:[[NSMutableArray alloc] init] forKey:@"savedThemes"];
    }
    [self setAllThemes:[NSMutableArray arrayWithArray:[savedThemes objectForKey:@"savedThemes"]]];
}

-(void)viewWillDisappear:(BOOL)animated
{
    
    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
    NSString *documentsDirectory = [paths objectAtIndex:0];
    NSString *path = [documentsDirectory stringByAppendingPathComponent:@"Themes.plist"];
    NSMutableDictionary *savedThemes = [[NSMutableDictionary alloc] initWithContentsOfFile: path];
    if(!savedThemes)
    {
        savedThemes = [[NSMutableDictionary alloc] init];
        [savedThemes setObject:[[NSMutableArray alloc] init] forKey:@"savedThemes"];
    }
    [savedThemes setObject:self.allThemes forKey:@"savedThemes"];
    if(![savedThemes writeToFile:path atomically:YES])
    {
        UIAlertView *error = [[UIAlertView alloc] initWithTitle:@"Error" message:@"Unable to save theme" delegate:nil cancelButtonTitle:@"OK" otherButtonTitles:nil, nil];
        [error show];
    }

}

- (void)didReceiveMemoryWarning
{
    [super didReceiveMemoryWarning];
    // Dispose of any resources that can be recreated.
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return [self.allThemes count];
}


- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:@"Cell" forIndexPath:indexPath];
    NSDictionary *theme = [self.allThemes objectAtIndex:indexPath.row];
    
    [cell.textLabel setText:[theme valueForKey:@"Name"]];
    return cell;
}

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
    NSDictionary *theme = [self.allThemes objectAtIndex:indexPath.row];
    [[NSNotificationCenter defaultCenter] postNotificationName:@"loadNewTheme" object:theme];
    
    [self.navigationController popToRootViewControllerAnimated:YES];
}

// Override to support conditional editing of the table view.
- (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
{
    return YES;
}


// Override to support editing the table view.
- (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
{
    if (editingStyle == UITableViewCellEditingStyleDelete) {
        [tableView beginUpdates];
        NSDictionary *theme = [self.allThemes objectAtIndex:indexPath.row];
        [self.allThemes removeObject:theme];
        [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
        [tableView endUpdates];
    }
}

@end