How To Default An EditText To Integer But Allow Decimal Input?

I am using an EditText to allow a user to input a value that is stored in a Double. However, by default, Doubles look like '0.0' and it's a little annoying for a user to backspace

Solution 1:

To achieve this you can use NumberFormat

    EditText yourEditText = (EditText) findViewById(R.id.editTextID);
    //dummy data, will have user's value
    double aDouble = 4.0;

    //formats to show decimal
    NumberFormat formatter = new DecimalFormat("#0");

    //this will show "4"
    yourEditText.setText(formatter.format(aDouble));

Make sure to validate the user's input. Also, this will only modify what is displayed and not the value itself.

Solution 2:

1. Parsing Double to String, then String to Int:

   String stringparsed = YourDouble + "";
   int intparsed = Integer.parseInt(stringparsed);
   

2. Using substring to cut the string from a startIndex to finalIndex:

   String stringparsed = YourDouble + "";
   String final = stringparsed.substring(0,1);   //for example, if the double was    0.0, the result is 0