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iOS Build a Self-Destructing Message iPhone App Relating Users in Parse.com Adding Friends by Tapping on a Table View Cell

Adding Friends By Tapping On A Table View Cell (Challenge)

I'm stuck on this challenge and can't quite figure out how to get the code running without errors. I feel it's correct... but clearly there's an issue and I can't quite put my finger on it.

Objective: We are working on an app to download videos of the Treehouse Show, which are listed in a table view. The user will tap on items in the list to create a list of shows to download. For each tap, add code below to simply mark rows as selected or not using 'UITableViewCellAccessoryCheckmark' and 'UITableViewCellAccessoryNone'.

My Code: // This code is excerpted from the didSelectRowAtIndexPath method of a view controller

UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];

// Add your code below to mark rows as selected or not! if (cell.accessoryType == UITableViewCellAccessoryNone) { cell.accessoryType == UITableViewCellAccessoryCheckmark; } else { cell.accessoryType == UITableViewCellAccessoryNone; }

2 Answers

Stone Preston
Stone Preston
42,016 Points

you used == when you should have used = to assign the cell the new accessoryType

if (cell.accessoryType ==  UITableViewCellAccessoryNone) { 
    //only use 1 equal sign to assign 
    cell.accessoryType = UITableViewCellAccessoryCheckmark;
 } else { 
    // only use 1 equal sign to assign
    cell.accessoryType = UITableViewCellAccessoryNone;

Perfect, thanks! Tired eyes make for careless mistakes...