asked on

Updating Text Issue

Hi,

I have a tip calculator app in Android - I have coded it so I have the option to split the total and tip by x number of guests.

I have a textview with the default text of "Tip". If the number of guests changes - I want the text to be "Split Tip".

In my app, I have a textWatcher

private TextWatcher numGuestTextWatcher = new TextWatcher() 
   {
      @Override
      public void onTextChanged(CharSequence s, int start, 
         int before, int count) 
      {         
         // convert billEditText's text to a double
         try
         {
            numGuests = Integer.parseInt(s.toString());
         } // end try
         catch (NumberFormatException e)
         {
            numGuests = 1; // default if an exception occurs
         } // end catch 
         updateTextFields();
      } //

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Then the updateTextFields method:

	     private void updateTextFields()
   {
	   if (numGuests > 1) {
		   tipTextView.append("Split Tip");
	   }
   }

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But when I change the value back to 1, the default text does not change back to "Tip" which is what I set the default string text to.

Any clue why?

CPColin

You don't have any code that fires when numGuests is less than or equal to 1. If you put an else block in that updateTextFields() method, you should be able to get the behavior you're looking for.

Computer Guy

ASKER

Like this:

{
       if (numGuests > 1) {
              tipTextView.append("Split Tip");
else
tipTextView.append("Tip");

       }
}

ASKER CERTIFIED SOLUTION

CPColin

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