android - How to limit EditText length to 7 integers and 2 decimal places?

Question

I have an EditText box which have to allow user to enter upto 7 numbers and two decimal places. After entering seven digits,it should not allow to add one more digit but i may allow upto 2 decimal places. I use a decimal filter for 2 decimal places and this code in XML

android:maxLength="7"    
android:imeOptions="actionDone"                  
android:inputType="numberDecimal"

But EditText is allowing to enter 8 digits. How can this be solved?

Answer 1

Try this under onCreate

 youreditText.setFilters(new InputFilter[] {new DecimalDigitsInputFilter(5,1)});

this anywhere in your program

   public class DecimalDigitsInputFilter implements InputFilter {

        Pattern mPattern;

        public DecimalDigitsInputFilter(int digitsBeforeZero,int digitsAfterZero) {
            mPattern=Pattern.compile("[0-9]{0," + (digitsBeforeZero-1) + "}+((\.[0-9]{0," + (digitsAfterZero-1) + "})?)||(\.)?");
        }

        @Override
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {

                Matcher matcher=mPattern.matcher(dest);       
                if(!matcher.matches())
                    return "";
                return null;
            }

        }