1 #import "ToDoListTableViewController.h"
  2 
  3 @interface ToDoListTableViewController ()
  4 
  5 @property NSMutableArray *toDoItems;
  6 
  7 @end
  8 
  9 @implementation ToDoListTableViewController
 10 
 11 - (void)loadInitialData {
 12     ToDoItem *item1 = [[ToDoItem alloc] init];
 13     item1.itemName = @"Buy milk";
 14     [self.toDoItems addObject:item1];
 15     ToDoItem *item2 = [[ToDoItem alloc] init];
 16     item2.itemName = @"Buy eggs";
 17     [self.toDoItems addObject:item2];
 18     ToDoItem *item3 = [[ToDoItem alloc] init];
 19     item3.itemName = @"Read a book";
 20     [self.toDoItems addObject:item3];
 21 
 22 }
 23 
 24 - (IBAction)unwindToList:(UIStoryboardSegue *)segue {
 25     
 26 }
 27 
 28 - (id)initWithStyle:(UITableViewStyle)style
 29 {
 30     self = [super initWithStyle:style];
 31     if (self) {
 32         // Custom initialization
 33     }
 34     return self;
 35 }
 36 
 37 - (void)viewDidLoad
 38 {
 39     [super viewDidLoad];
 40     self.toDoItems = [[NSMutableArray alloc] init];
 41     [self loadInitialData];
 42     
 43     // Uncomment the following line to preserve selection between presentations.
 44     // self.clearsSelectionOnViewWillAppear = NO;
 45     
 46     // Uncomment the following line to display an Edit button in the navigation bar for this view controller.
 47     // self.navigationItem.rightBarButtonItem = self.editButtonItem;
 48 }
 49 
 50 - (void)didReceiveMemoryWarning
 51 {
 52     [super didReceiveMemoryWarning];
 53     // Dispose of any resources that can be recreated.
 54 }
 55 
 56 #pragma mark - Table view data source
 57 
 58 - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
 59 {
 60     // Return the number of sections.
 61     return 1;
 62 }
 63 
 64 - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
 65 {
 66     // Return the number of rows in the section.
 67     return [self.toDoItems count];
 68     //NSLog(@"The number of rows is %lu", (unsigned long)[self.toDoItems count]);
 69     
 70 }
 71 
 72 - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
 73 {
 74     static NSString *CellIndentifier = @"ListPrototypeCell";
 75     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIndentifier forIndexPath:indexPath];
 76     
 77     // Configure the cell...
 78     ToDoItem *toDoItem = [self.toDoItems objectAtIndex:indexPath.row];
 79     cell.textLabel.text = toDoItem.itemName;
 80     if (toDoItem.completed) {
 81         cell.accessoryType = UITableViewCellAccessoryCheckmark;
 82     } else {
 83         cell.accessoryType = UITableViewCellAccessoryNone;
 84     }
 85     
 86     return cell;
 87 }
 88 
 89 /*
 90 // Override to support conditional editing of the table view.
 91 - (BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath
 92 {
 93     // Return NO if you do not want the specified item to be editable.
 94     return YES;
 95 }
 96 */
 97 
 98 /*
 99 // Override to support editing the table view.
100 - (void)tableView:(UITableView *)tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(NSIndexPath *)indexPath
101 {
102     if (editingStyle == UITableViewCellEditingStyleDelete) {
103         // Delete the row from the data source
104         [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationFade];
105     } else if (editingStyle == UITableViewCellEditingStyleInsert) {
106         // Create a new instance of the appropriate class, insert it into the array, and add a new row to the table view
107     }   
108 }
109 */
110 
111 /*
112 // Override to support rearranging the table view.
113 - (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)fromIndexPath toIndexPath:(NSIndexPath *)toIndexPath
114 {
115 }
116 */
117 
118 /*
119 // Override to support conditional rearranging of the table view.
120 - (BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath
121 {
122     // Return NO if you do not want the item to be re-orderable.
123     return YES;
124 }
125 */
126 
127 /*
128 #pragma mark - Navigation
129 
130 // In a storyboard-based application, you will often want to do a little preparation before navigation
131 - (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender
132 {
133     // Get the new view controller using [segue destinationViewController].
134     // Pass the selected object to the new view controller.
135 }
136 */
137 
138 #pragma mark - Table view delegate
139 
140 - (void)tableview:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
141 {
142     // Respond to taps but not actually leave the cell selected.
143     [tableView deselectRowAtIndexPath:indexPath animated:NO];
144     // Search for the corresponding ToDoItem in your to DoItems array.
145     ToDoItem *tappedItem = [self.toDoItems objectAtIndex:indexPath.row];
146     // Toggle the completion state of the tapped item.
147     tappedItem.completed = !tappedItem.completed;
148     // Tell the table view to reload the row whose data you just updated.
149     [tableView reloadRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationNone];
150 }
151 @end