Objective C The default value for the text field is “•••••••” to “1 ••••••”, “12 •••••”, “123 ••••” when the user presses a number

Question

I want to create a text field that has a default value of “•••••••”, when a user clicks a number on UIKeyboardTypeNumberPad, he will add a text field of type “1 ••••••” (for example, press number 1) and “12 •••••” (for example, a second press on number 2). Each click on the UIKeyboardTypeNumberPad will be added to the text box, respectively. How can i do this? Thank.

Answer 1

I used some tricks to do this.

• UILable ●●●●●●.
• UITextField UILable.
• UITextField storyBoard, UITextField TintColor clearColor ( blink), textColor clearColor ( ) NumberPad.
• UILable UITextField textAlignment .
• IBAction, UITextField storyBoard.

• , .. -

  -(IBAction)textEditingChanged:(UITextField*)sender{
  
          if(sender.text.length==0){
              self.myLable.text=[NSString stringWithFormat:@"●●●●●●●"];
          }
  
          if(sender.text.length==1){
              self.myLable.text=[NSString stringWithFormat:@"%@●●●●●●",sender.text];
          }
  
  
          if(sender.text.length==2){
              self.myLable.text=[NSString stringWithFormat:@"%@●●●●●",sender.text];
          }
  
          if(sender.text.length==3){
              self.myLable.text=[NSString stringWithFormat:@"%@●●●●",sender.text];
          }
  
          if(sender.text.length==4){
              self.myLable.text=[NSString stringWithFormat:@"%@●●●",sender.text];
          }
  
          if(sender.text.length==5){
              self.myLable.text=[NSString stringWithFormat:@"%@●●",sender.text];
          }
  
          if(sender.text.length==6){
              self.myLable.text=[NSString stringWithFormat:@"%@●",sender.text];
          }
          if(sender.text.length==7){
              self.myLable.text=[NSString stringWithFormat:@"%@",sender.text];
              [sender resignFirstResponder];
          }
  
  
      }
  

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