how to display core data on cell in ios? - ios

Question

In my app i want to store data in core data and that data should be display on cell of UITableView.
Now I had successfully store the data in core data.
Now how to display all my data on cell of UITableView?
Now I had edited some TasksViewController.m code
TasksViewController.h
#interface TasksViewController : UIViewController
#property (weak, nonatomic) IBOutlet UITableView *tableView;
#property (strong) NSMutableArray *tasks;
#property (nonatomic,retain) NSMutableArray *taskTaskNameArray,*taskColorTagArray,*taskProjectName,*taskStartingTimeArray,*taskCompletingTimeArray;
#property (strong, nonatomic) NSFetchedResultsController *fetchedResultsController;
#property (nonatomic, strong) NSManagedObjectContext *context;
#property (nonatomic,retain) NSFetchRequest *fetchRequest;
#end
TasksViewController.m
#implementation TasksViewController
- (void)viewDidLoad
{
[super viewDidLoad];
NSFetchRequest *fetchRequest = [NSFetchRequest fetchRequestWithEntityName:#"Task"];
fetchRequest.resultType = NSDictionaryResultType;
[fetchRequest setPropertiesToFetch:[NSArray arrayWithObjects:#"task_name",#"color_tag",#"project_name",#"completing_date",#"starting_date",nil]];
NSError *error = nil;
_arrayTasks = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error];
_taskTaskNameArray = [self.arrayTasks valueForKey:#"task_name"];
_taskColorTagArray = [self.arrayTasks valueForKey:#"color_tag"];
_taskProjectNameArray = [self.arrayTasks valueForKey:#"project_name"];
_taskStartingTimeArray = [self.arrayTasks valueForKey:#"starting_date"];
_taskCompletingTimeArray = [self.arrayTasks valueForKey:#"completing_date"];
[self.tableView reloadData];
}
-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
return 1;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
return _arrayTasks.count;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier = #"Cell";
TasksTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
cell = [[TasksTableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
}
cell.lblTaskName.text = [_arrayTask objectAtIndex:indexPath.row ];
cell.lblColorTag.text = [_arrayTask objectAtIndex:indexPath.row];
cell.lblProjectName.text = [_arrayTask objectAtIndex:indexPath.row];
cell.lblCompletingDate.text = [_arrayTask objectAtIndex:indexPath.row];
cell.lblStartingDate.text = [_arrayTask objectAtIndex:indexPath.row];
return cell;
}
#end
Tasks.h
#interface Tasks : NSManagedObject
#property (nonatomic,retain) NSString *taskTaskName,*taskColorTag,*taskProjectName,*taskStartingDate,*taskCompletingDate;
#end
Task.m
#implementation Tasks
#dynamic taskTaskName;
#dynamic taskColorTag;
#dynamic taskProjectName;
#dynamic taskStartingDate;
#dynamic taskCompletingDate;
#end
TasksTableViewCell.h
#interface TasksTableViewCell : UITableViewCell
#property (weak, nonatomic) IBOutlet UILabel *lblTaskName;
#property (weak, nonatomic) IBOutlet UILabel *lblColorTag;
#property (weak, nonatomic) IBOutlet UILabel *lblProjectName;
#property (weak, nonatomic) IBOutlet UILabel *lblStartingTime;
#property (weak, nonatomic) IBOutlet UILabel *lblCompletingTime;
#end
TasksTableViewCell.m
#implementation TasksTableViewCell
- (void)awakeFromNib {
// Initialization code
}
- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
[super setSelected:selected animated:animated];
// Configure the view for the selected state
}
#end
I had tried this code but it is not working and not display data on cell of UITableView.
I had edited some code in - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath of TasksTableViewController.m .
I had store data of core in array and whole Task table is store in arrayTask and its attribute are also stores in different different array like taskname in _taskTaskNameArray and like that...
Thanks for any help.

Answer 1

Try this:
1. update NSSortDescriptor like this:
NSSortDescriptor *taskNameDescriptor = [[NSSortDescriptor alloc]initWithKey:#"taskTaskName" ascending:YES];
NSSortDescriptor *subTaskDescriptor = [[NSSortDescriptor alloc]initWithKey:#"taskColorTag" ascending:YES];
NSSortDescriptor *startingDateDescriptor = [[NSSortDescriptor alloc]initWithKey:#"taskStartingDate" ascending:YES];
NSSortDescriptor *completingDateDescriptor = [[NSSortDescriptor alloc]initWithKey:#"taskCompletingDate" ascending:YES];
NSSortDescriptor *projectNameDescriptor = [[NSSortDescriptor alloc]initWithKey:#"taskProjectName" ascending:YES];
// ...
Sort key should be same with property name.
use dequeueReusableCellWithIdentifier:forIndexPath: instead of dequeueReusableCellWithIdentifier: to make sure the cell isn't nil.

Answer 2

Change array to self.tasks and index to indexpath.row
- (void)configureCell:(TasksTableViewCell *)cell atIndexPath:(NSIndexPath *)indexPath
{
// Configure the cell to show the book's title
Tasks *tasks = [self.tasks objectAtIndexPath:indexPath.row];
// YOUR CODE
}
Thanks.