Single row selection - UITableView

Question

Good afternoon,

I try to deploy my application when selecting one row in a UITableView, but when I select another row, the previous row is fuzzy. I use images to represent a selection of lines. I tried to force each user's selection table row to remain with the deselection image, but was not successful.

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *EditCellIdentifier = @"EditCell"; UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:EditCellIdentifier]; if (cell == nil) { cell = [[[UITableViewCell alloc] initWithFrame:CGRectZero reuseIdentifier:EditCellIdentifier] autorelease]; UILabel *label = [[UILabel alloc] initWithFrame:kLabelRect]; label.tag = kCellLabelTag; [cell.contentView addSubview:label]; [label release]; UIImageView *imageView = [[UIImageView alloc] initWithImage:unselectedImage]; imageView.frame = CGRectMake(5.0, 10.0, 23.0, 23.0); [cell.contentView addSubview:imageView]; imageView.hidden = !inPseudoEditMode; imageView.tag = kCellImageViewTag; [imageView release]; } [UIView beginAnimations:@"cell shift" context:nil]; UIImageView *imageView = (UIImageView *)[cell.contentView viewWithTag:kCellImageViewTag]; NSNumber *selected = [selectedArray objectAtIndex:[indexPath row]]; imageView.image = ([selected boolValue]) ? selectedImage : unselectedImage; imageView.hidden = !inPseudoEditMode; [UIView commitAnimations]; UILabel *label = (UILabel *)[cell.contentView viewWithTag:kCellLabelTag]; label.text =[listOfItems objectAtIndex:[indexPath row]]; label.frame = (inPseudoEditMode) ? kLabelIndentedRect : kLabelRect; label.opaque = NO; return cell; } - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { [tv deselectRowAtIndexPath:indexPath animated:YES]; if (inPseudoEditMode) { BOOL selected = [[selectedArray objectAtIndex:[indexPath row]] boolValue]; [selectedArray replaceObjectAtIndex:[indexPath row] withObject:[NSNumber numberWithBool:!selected]]; [tv reloadData]; } } 

Answer 1

I assume that you want to allow only one row selected at a time.

Here is what I suggest in tableView: didSelectRowAtIndexPath: ::

Mark all lines as not selected:

 for (int i = 0; i < [selectedArray count]; i++) { [selectedArray replaceObjectAtIndex:i withObject:[NSNumber numberWithBool:NO]]; } 

Then mark the current line as follows:

 [selectedArray replaceObjectAtIndex:[indexPath row] withObject:[NSNumber numberWithBool:YES]]; 

OR, do everything in the same for the loop:

 for (int i = 0; i < [selectedArray count]; i++) { NSNumber rowSelected = [NSNumber numberWithBool:(indexPath.row == i)]; [selectedArray replaceObjectAtIndex:i withObject:rowSelected]; } 

Hope this is what you want!

Answer 2

The shortest way that I use

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 for (int i = 0; i < [selectedArray count]; i++) { [selectedArray replaceObjectAtIndex:i withObject:[NSNumber numberWithBool:i==indexpath.row?YES:NO]]; } 

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