How to check cell is selected for UITbaleview

rk_mail04 · 12-15-2010, 12:40 PM

I have UITableViewController.when i tap a cell i need to display check mark in left side of selected cell for indication of cell is selected.How to check the cell selection .

WSD · 12-15-2010, 12:57 PM

in didSelectRowAtIndexPath: method, add:

Code:

 UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
			 [cell setSelected:YES animated:YES];
			 [cell setAccessoryType:UITableViewCellAccessoryCheckmark];

rk_mail04 · 12-15-2010, 02:30 PM

Quote:

Originally Posted by WSD

in didSelectRowAtIndexPath: method, add:

Code:

 UITableViewCell *cell = [tableView cellForRowAtIndexPath:indexPath];
			 [cell setSelected:YES animated:YES];
			 [cell setAccessoryType:UITableViewCellAccessoryCheckmark];

I have 4 rows. after selecting first cell its ok. when i select second cell i need to disable first cell check mark and show check mark in second is selected .This is up to 4th cell. but check mark should be left side.

WSD · 12-17-2010, 09:33 AM

Add a loop that unchecks ALL rows, then put a checkmark in currently selected row.
Add something like this to didSelectRowAtIndexPath: method:

Code:

for(int iterator=0;iterator<aData.count;iterator++){
			 
			 UITableViewCell *eachCell = [[self tableView] cellForRowAtIndexPath:[NSIndexPath indexPathForRow:iterator inSection:0]];
			 [eachCell setSelected:NO animated:YES];
			 [eachCell setAccessoryType:UITableViewCellAccessoryNone];
			 }
			 
			 UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath];
			 [newCell setSelected:YES animated:YES];
			 [newCell setAccessoryType:UITableViewCellAccessoryCheckmark];

From what I know, checkmark is always on the right. If you want it on the left, you'll have to use a custom image...

rk_mail04 · 12-18-2010, 02:31 AM

Its working fine for your sample . I am also tried for custom in left side checkmark its fine .

Code:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    
    static NSString *CellIdentifier = @"Cell";
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
		[[cell imageView] setImage:[UIImage imageNamed:@"Tick.png"]];

    }
    [[cell imageView] setHidden:YES];
	
	if (indexPath.row == selectedRow) 
	{
		
		[[cell imageView] setHidden:NO];
	}
	
    // Set up the cell...
	NSString *cellValue =[listOfItems_CervicalFluid_Input objectAtIndex:indexPath.row];
	cell.text = cellValue;
	return cell;
}
didSelectRowAtIndexPath method 

selectedRow = indexPath.row;
	[self.tableView reloadData];

In header file
 int selectedRow=-1 // init

Quote:

Originally Posted by WSD

Add a loop that unchecks ALL rows, then put a checkmark in currently selected row.
Add something like this to didSelectRowAtIndexPath: method:

Code:

for(int iterator=0;iterator<aData.count;iterator++){
			 
			 UITableViewCell *eachCell = [[self tableView] cellForRowAtIndexPath:[NSIndexPath indexPathForRow:iterator inSection:0]];
			 [eachCell setSelected:NO animated:YES];
			 [eachCell setAccessoryType:UITableViewCellAccessoryNone];
			 }
			 
			 UITableViewCell *newCell = [tableView cellForRowAtIndexPath:indexPath];
			 [newCell setSelected:YES animated:YES];
			 [newCell setAccessoryType:UITableViewCellAccessoryCheckmark];

From what I know, checkmark is always on the right. If you want it on the left, you'll have to use a custom image...

rk_mail04 · 12-18-2010, 02:37 AM

Its working fine for your sample . I am also tried for custom in left side checkmark its fine .
Now i have one more question about same uitableview cell selection. after selecting my cell i am indication in check mark cell is selected. When its going back to main uiviewcontroller and coming back to check there is no selection cell check mark. what happening now . beuase i am already selected my cell.

Code:

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    
    static NSString *CellIdentifier = @"Cell";
    
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] autorelease];
		[[cell imageView] setImage:[UIImage imageNamed:@"Tick.png"]];

    }
    [[cell imageView] setHidden:YES];
	
	if (indexPath.row == selectedRow) 
	{
		
		[[cell imageView] setHidden:NO];
	}
	
    // Set up the cell...
	NSString *cellValue =[listOfItems_CervicalFluid_Input objectAtIndex:indexPath.row];
	cell.text = cellValue;
	return cell;
}
didSelectRowAtIndexPath method 

selectedRow = indexPath.row;
	[self.tableView reloadData];

In header file
 int selectedRow=-1 // init

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