swift tableview how to select all rows

Question

I have Button in tableview I want when I press that button will select all cell rows, how to do that? I tried alot but I got nothing

I'm so confused how to make the button contact the cell

I've tried to make var like this

var x = false

then I do like

if( x == true ) { //Code }

and when you press the button it will be true

but I don't know in which func I should put this ? and I don't know how to select all rows

Could someone help me how to Select \ Deselect all rows in cell when pressing button in tableview.

Thank you so much!

if there's no func to select all, is there a way to change all rows background color when i press the button ? — Salah, Aug 17 '15 at 08:21
background for cell rows, the cell using other swift file and table view using another swift file the button in the tableview — Salah, Aug 17 '15 at 08:29
on button action set a bool value , reload the tableView . so cellForRowAtIndexPath method will invoke, in this method u check condition with bool value and set cell.backgroundColor = UIColor.blueColor(); — Shebin Koshy, Aug 17 '15 at 08:32
http://stackoverflow.com/questions/2035061/select-tableview-row-programmatically — Adnan Aftab, Aug 17 '15 at 09:13

score 5 · Accepted Answer · answered Aug 17 '15 at 11:01

var selectedUsernameArray : NSMutableArray = []
var username1Array : NSMutableArray = ["hel","dsf","fsdg"]//just a sample

Initially button name should be "Select all"

Button action :

 @IBAction func buttonAction(sender: UIButton) {

   if(sender.titleLabel?.text == "Select all")
    {
        selectedUsernameArray .addObjectsFromArray(username1Array as [AnyObject])
        sender.titleLabel?.text = "Deselect all"
    }
    else
   {
    selectedUsernameArray .removeAllObjects();
    sender.titleLabel?.text = "Select all"
    }

    self.tableView .reloadData()
}

tableview delegate

override func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
    let cell = tableView.dequeueReusableCellWithIdentifier("Cell", forIndexPath: indexPath) as! UITableViewCell
    var ob: AnyObject = username1Array .objectAtIndex(indexPath.row);
    cell.textLabel?.text = ob as? String;
    if(selectedUsernameArray .containsObject(ob))
    {
      cell.backgroundColor = UIColor.blueColor();
    }
    else
    {
        cell.backgroundColor = UIColor.whiteColor();
    }
    return cell
}

score 1 · Answer 2 · edited Aug 17 '15 at 09:07

1

var isSelectAll = false; //global variable

isSelectAll = true;//on button action
self.tableView.reloadData()//on button action

in cellForRowAtIndexPath method

if(isSelectAll==true)
{
cell.backgroundColor = UIColor.blueColor();
}
else
{
cell.backgroundColor = UIColor.white();
}

edited Aug 17 '15 at 09:07

Ashish Kakkad

23,586
12
103
136

answered Aug 17 '15 at 08:38

Shebin Koshy

1,182
8
22

Thanks, I tried that but the rows background still white wont changing! – Salah Aug 17 '15 at 08:50
I did and i found the issue, please take a look, how can i just select all rows when i press the button instead of changing colors ? – Salah Aug 17 '15 at 09:40
Could you tell me how can i add contains array to other array? – Salah Aug 17 '15 at 10:17
selectedUsernameArray .addObjectsFromArray(username1Array as [AnyObject]) – Shebin Koshy Aug 17 '15 at 11:02

score 0 · Answer 3 · answered Aug 17 '15 at 09:37

0

In cellForRowAtIndexPath:

UITableViewCell *cell...

cell.accesoryType = isSelectAll ? UITableViewCellAccessoryCheckmark : UITableViewCellAccessoryNone;

answered Aug 17 '15 at 09:37

Vito Royeca

657
10
20

thank you , What's that code ? Could you help me how to select all rows when i press the button ? – Salah Aug 17 '15 at 09:47
Call [tableView reloadData] when user taps the button, and the the cellForRowAtIndexPath: will be called automatically. – Vito Royeca Aug 17 '15 at 09:51
Could you tell me how can i add contains array to other array? – Salah Aug 17 '15 at 10:17
NSArray *newArray = [NSArray arrayWithArray:otherArray]; – Vito Royeca Aug 17 '15 at 10:20
i'm using swift isn't objective-c, or how can i get all usernames in the rows and add them to array? when i press the button! – Salah Aug 17 '15 at 10:21
var newArray = Array() for x in oldArray { newArray.append(x) } – Vito Royeca Aug 17 '15 at 10:32

swift tableview how to select all rows

3 Answers3

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