SettingsViewController

SettingsViewController.h

#import <UIKit/UIKit.h>

@interface SettingsViewController : UITableViewController

typedef enum {
    AlistoPrefKeyTypeShowTaskNumbers = 0,
    AlistoPrefKeyConfirmDeletion = 1
} AlistoPrefKeyType;

@property (nonatomic, retain) IBOutlet UITableViewCell *showTaskNumbersCell;
@property (weak, nonatomic) IBOutlet UISwitch *showTaskNumbersSwitch;
- (IBAction)toggleShowTaskNumbersSwitch:(id)sender;

@property (nonatomic, retain) IBOutlet UITableViewCell *showTaskDeletionCell;
@property (weak, nonatomic) IBOutlet UISwitch *confirmTaskDeletionSwitch;
- (IBAction)toggleConfirmTaskDeletionSwitch:(id)sender;
@end

SettingsViewController.m

#import "SettingsViewController.h"

@interface SettingsViewController ()
@end

@implementation SettingsViewController

@synthesize showTaskNumbersCell;
@synthesize showTaskNumbersSwitch;
@synthesize showTaskDeletionCell;
@synthesize confirmTaskDeletionSwitch;


- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    self = [super initWithNibName:@"SettingsViewController" bundle:nibBundleOrNil];
    
    if (self) {
        // so that users cannot select any rows
        [[self tableView] setAllowsSelection:NO];
    }
    
    return self;
}

- (void)viewDidLoad
{
    [super viewDidLoad];

    [[self navigationItem] setTitle:@"Settings"];
    
    UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(doneButton:)];
    
    [[self navigationItem] setRightBarButtonItem:doneButton];
    
    // display settings    
    [showTaskNumbersSwitch setOn:[[NSUserDefaults standardUserDefaults] boolForKey:[NSString stringWithFormat:@"%d", AlistoPrefKeyTypeShowTaskNumbers]]];
    [confirmTaskDeletionSwitch setOn:[[NSUserDefaults standardUserDefaults] boolForKey:[NSString stringWithFormat:@"%d", AlistoPrefKeyConfirmDeletion]]];
}

- (void)viewDidDisappear:(BOOL)animated {
    [super viewDidDisappear:animated];
}

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

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    return 2;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    
    switch ([indexPath row]) {
        case 0:     return [self showTaskNumbersCell];
        case 1:     return [self showTaskDeletionCell];
        default: ;
    }
}

- (IBAction)doneButton:(id)sender {
    [self removeView];
}

- (void)removeView {
    [[self presentingViewController] dismissModalViewControllerAnimated:YES];   
}

- (IBAction)toggleShowTaskNumbersSwitch:(id)sender {
    [[NSUserDefaults standardUserDefaults] setBool:[sender isOn] forKey:[NSString stringWithFormat:@"%d", AlistoPrefKeyTypeShowTaskNumbers]];
}
- (IBAction)toggleConfirmTaskDeletionSwitch:(id)sender {
    [[NSUserDefaults standardUserDefaults] setBool:[sender isOn] forKey:[NSString stringWithFormat:@"%d", AlistoPrefKeyConfirmDeletion]];    
}
@end