Question

Is it possible to use the different UITextFields to identify the conditions to execute? For example if the user touches UITextField *tf1 it must access one condition (using a if statement) and if the user touches UITextField *tf2 it must access another condition. I tried using tags doesn’t seem to work. Any suggestions please?

Answer 1

Tags are definitely the right solution. Make sure that each of your textfields has its own unique tag, and make sure you cast the sender to a control type in your action method before reading it. I like to define constants for them to make it clear what each control is for. For example, in the header file:

#define RED_TEXT_FIELD 1
#define BLUE_TEXT_FIELD 2

In the code:

-(void) onTouchTextField:(id)sender {

   UITextField *theField = (UITextField *)sender;
   if (theField.tag == RED_TEXT_FIELD) {
      ...do something...
   } 
   else if (theField.tag == BLUE_TEXT_FIELD) {
      ...do something...
   }
}