CODEWITHSUNDEEP
objective-ciphoneuitableviewuitextfield
iPhone
iPhone

Reputation: 4170

Managing multiple UITextField in a single UITableViewCell

I have more than one UITextField's in single UITableviewCell. I know we can identify subviews of UITableViewCell with using tags. But in my scenario I have multiple UITextField in single UITableViewCell.

How can I provide tag to identify which UITextField is clicked?

Upvotes: 0

Views: 232

Answers (4)

Teja Nandamuri
Teja Nandamuri

Reputation: 11201

When you have multiple UITextFeild's in your UITableViewCell, give tag to each of the textfield in your cellForRowAtIndex method. And then when you tap on the textfield, the UITextFieldDelegate will get hit.

For example,textFieldShouldBeginEditing will get hit when you tap on a textfield.

Or, you can even add Observers to your textfield, and then you can simply validate which textfield is tapped.

If you consider the delegate method:

- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
{
   if(textfield.tag==1)
   {
      //you tapped textfield 1
   }
}

Upvotes: 1

Kathiresan Murugan
Kathiresan Murugan

Reputation: 2962

You can set a tag like

 cell.contentView.subviews.enumerated().forEach { (offset, view) in
    (view as! UITextField).tag = 100 + offset 
 }

Then in 

extension ViewController:UITextFieldDelegate {

func textFieldDidBeginEditing(_ textField: UITextField) {

  if textField.tag == 101 {
    // first textField
  } else if textField.tag == 102 {
    // second textField
  } else {
   // else
  }
 }
}

Upvotes: 0

will3
will3

Reputation: 11

You can set the tag in storyboard or nib files.

Select the textfield, select the properties tab on the right, modify tag in the View section.

Upvotes: 0

manecosta
manecosta

Reputation: 8772

If I understand correctly, since you have more than one textField in each Cell, simply using the row as tag will still be impossible to distinguish between which textField it is from that specific row.

What I usually do in these scenarios is to encode 2 values in the tag.

For example you can save it like this:

textField.tag = indexPath.row * 1000 + TEXTFIELD_INDEX

and then, on a delegate method for that textField you would retrieve it like:

NSInteger textFieldIndex = textField.tag % 1000;
NSInteger row = textField.tag / 1000;

The textField index will be stored as the remainder of 1000 on the tag, and the row itself will be stored as the thousands.

Note: There's an implicit limitation when doing this, in which you can only have up to 1000 textFields in each cell, and about 2000000 cells. Assuming tag is a 32 bit integer. But I find that pretty reasonable :)

Upvotes: 0

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