CODEWITHSUNDEEP
iosobjective-ciphoneuitableview
user4387283
user4387283

Reputation:

How to Save Selected TableView Row Data and Show when user Come Back to Screen?

I am Newbie in iOS Development. I want to make an Application that Contain UITableview. I want to Show when user Select UITableView Cell then it Like as Check marked it is Worked as i want but now i want to Show when User Back to Other View And Come back to Table View then it Shows Your Past Selection Of Table View Cell Please Give me Solution For that.

I Show in Stack Overflow it is Done by NSUSerdefault i find a code for it and Set like as But it is Not Working for me Please Give me Solution.

Here my UITableview didSelectRowAtIndexPath Method.

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
CategoryCustumCell *cell = (CategoryCustumCell *)[tableView cellForRowAtIndexPath:indexPath];
NSString *selectedCell= cell.categoryLabel.text;
NSLog(@"Category label %@",selectedCell);
NSString *text=[self.categoryArray objectAtIndex:indexPath.section];
if([self isRowSelectedOnTableView:tableView atIndexPath:indexPath])
{
    [self.selectedCells removeObject:indexPath];
    [self.selecedStates removeObject:text];
    cell.accessoryType = UITableViewCellAccessoryNone;
} else
{
    [self.selectedCells addObject:indexPath];
    [self.selecedStates addObject:text];
    cell.accessoryType = UITableViewCellAccessoryCheckmark;
}
NSLog(@"%@", self.selecedStates);
NSUserDefaults *userdefaults = [NSUserDefaults standardUserDefaults];
[userdefaults setObject:[NSString stringWithFormat:@"%d",indexPath.section] forKey:@"lastIndexPathUsed"];
[userdefaults synchronize];
}

And Also Code for UITableView cellForRowAtIndexPath

-(CategoryCustumCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier=@"Cell";
CategoryCustumCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
    NSArray *nib=[[NSBundle mainBundle]loadNibNamed:@"CategoryCustumCell" owner:self options:nil];
    cell=[nib objectAtIndex:0];
}
cell.categoryLabel.text=[self.categoryArray objectAtIndex:indexPath.section];
cell.accessoryType = ([self isRowSelectedOnTableView:tableView atIndexPath:indexPath]) ? UITableViewCellAccessoryCheckmark : UITableViewCellAccessoryNone;
return cell;
}

And I write to Fetch NSUserdefault Data in viewDidLoad like as

NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
self.lastIndexPath = [defaults objectForKey:@"lastIndexPathUsed"];

and i Define in my .h file

@property (nonatomic,retain) NSIndexPath *lastIndexPath;

But i not Get Selection on User Come Back to the View Please Give me Solution for it.

Upvotes: 1

Views: 1729

Answers (2)

NewStackUser
NewStackUser

Reputation: 657

Try this.

-(CategoryCustumCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
static NSString *CellIdentifier=@"Cell";
CategoryCustumCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil)
{
    NSArray *nib=[[NSBundle mainBundle]loadNibNamed:@"CategoryCustumCell" owner:self options:nil];
    cell=[nib objectAtIndex:0];
}
cell.categoryLabel.text=[self.categoryArray objectAtIndex:indexPath.section];
if (indexPath.section==self.lastIndexPath) {
    cell.accessoryType=UITableViewCellAccessoryCheckmark;
}
else{
    cell.accessoryType=UITableViewCellAccessoryNone;
}
return cell;
}

Upvotes: -1

Vivek Sehrawat
Vivek Sehrawat

Reputation: 6570

Create a property like below

@interface ViewController ()
//I added this property to keep track of the selected row
@property (strong,nonatomic) NSIndexPath *selectedPath;

@end

Check if it's nil or value is present in indexpath

- (void)viewWillAppear:(BOOL)animated
{
    //I added this if clause to select the row that was last selected
    if (self.selectedPath != nil) {
        [TABLENAME selectRowAtIndexPath:self.selectedPath animated:NO scrollPosition:UITableViewScrollPositionNone];
    }

}

Set the value in didSelect

-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
// set here
    self.selectedPath = indexPath;
}

Upvotes: 2

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