ahmed ahmed - 1 month ago 18
iOS Question

Objective C Cell Accessory view

When I try to set the accessory view of a table view cell to a custom type image and run it in the simulator, I see that multiple cells have the accessory view image instead of the one that is currently selected. But when I set the accessory view to "cell.accessoryType = UITableViewCellAccessoryCheckmark;", I don't have this problem. Here is the code.

id item = [_items objectAtIndex:row];

if ([_currentVale isKindOfClass:[NSString class]])
{
if ([item isEqualToString:_currentVale])
{

UIImageView *checkmark = [[UIImageView alloc] initWithImage:[UIImage imageNamed:@"checkmark-outline.png"]];
checkmark.frame = CGRectMake(0, 0, 20, 20);
cell.accessoryView = checkmark;
}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;
}
}
else if ([_currentVale isKindOfClass:[NSNumber class]])
{
if ([item isEqualToNumber:_currentVale])
{
cell.accessoryType = UITableViewCellAccessoryNone;

}
else
{
cell.accessoryType = UITableViewCellAccessoryNone;


}
}


Two images of what I'm talking about. Only one value should be chosen in the picker but there is two showing the checkmark

Image 1

Image 2

Answer

The cells are being reused. You need to set the accessory view also to nil inside the else.

else
    {
        cell.accessoryType = UITableViewCellAccessoryNone;
        cell.accessoryView = nil;
    }