How to remove the check mark on another click? - ios

Question

I want to make a table that user can select and deselect with a check mark:
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *) indexPath
{
...;
cell.selectionStyle = UITableViewCellSelectionStyleNone;
}
- (void)tableView:(UITableView *) tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
...;
newCell.accessoryType = UITableViewCellAccessoryCheckmark;
...;
}
I was trying to remove the check mark when clicking on the check-marked cell again, but it takes 2 clicks to do that instead of one.
If I set selection style to default, when I click on a selected row, it removes the blue highlight; clicking again, it removes the check mark.
I also tried some conditional statements in didSelectRowAtIndexPath, but they only respond to second click as well.
What causes the problem and how do I fix it?

Answer 1

You can try this one:
- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger index = [[tableView indexPathsForVisibleRows] indexOfObject:indexPath];
if (index != NSNotFound) {
UITableViewCell *cell = [[tableView visibleCells] objectAtIndex:index];
if ([cell accessoryType] == UITableViewCellAccessoryNone) {
[cell setAccessoryType:UITableViewCellAccessoryCheckmark];
} else {
[cell setAccessoryType:UITableViewCellAccessoryNone];
}
}
}
This should toggle the cell's checkmark on every touch.
If you additionally want only one cell to appear selected at a time, also add the following:
- (void)tableView:(UITableView *)tableView didDeselectRowAtIndexPath:(NSIndexPath *)indexPath {
NSUInteger index = [[tableView indexPathsForVisibleRows] indexOfObject:indexPath];
if (index != NSNotFound) {
UITableViewCell *cell = [[tableView visibleCells] objectAtIndex:index];
[cell setAccessoryType:UITableViewCellAccessoryNone];
}
}
If you don't want the blue hilight background, simply set the cell's selection style to UITableViewCellSelectionStyleNone once you create the cell.

Answer 2

Based on Starter's link to Apple docs (my code in Swift 3):
func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
tableView.deselectRow(at: indexPath, animated: true)
if let cell = tableView.cellForRow(at: selectedIndexPath) {
cell.accessoryType = .none
}
if let cell = tableView.cellForRow(at: indexPath) {
cell.accessoryType = .checkmark
}
selectedIndexPath = indexPath
}
The main point is to keep track of currently selected cell and change cell.accessoryType accordingly. Also don't forget to properly set cell.accessoryType in tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) based on selectedIndexPath.

Answer 3

Check this Apple official doc
best solution ever

Answer 4

- (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
if (index != NSNotFound) {
UITableViewCell *cell = [[tableView visibleCells] objectAtIndex:index];
if (cell.accessoryType == UITableViewCellAccessoryNone)
cell.accessoryType = UITableViewCellAccessoryCheckmark;
else
cell.accessoryType = UITableViewCellAccessoryNone;
[self.tableName reloadData];
}
}
This helps in toggling the checkmarks (remove the check mark when clicking on the check-marked cell again)

Answer 5

You can use this:
You can use this:
if tableView.cellForRow(at: indexPath)?.accessoryType == .checkmark { tableView.cellForRow(at: indexPath)?.accessoryType = .none } else { tableView.cellForRow(at: indexPath)?.accessoryType = .checkmark } tableView.deselectRow(at: indexPath, animated: true)