Only show number buttons on Soft Keyboard in Android?

Question

On the soft keyboard in Android you can set the soft keyboard to show the numbers instead of a-z keyboard using android:inputType=\"numberDecimal\". However, wh

Answer 1

I had implemented this for android in Xamarin. So, my code is in C#. But the principal stays the same. You can set attribute of edittext to android:inputType="numberPassword".

Then within your code you attach custom transformation method to your edittext view.

holder.edtxtQty.TransformationMethod = new HiddenPasswordTransformationMethod();

private class HiddenPasswordTransformationMethod : global::Android.Text.Method.PasswordTransformationMethod
        {
            public override Java.Lang.ICharSequence GetTransformationFormatted(Java.Lang.ICharSequence source, View view)
            {
                return new PasswordCharSequence(source);
            }
        }

    private class PasswordCharSequence : Java.Lang.Object, Java.Lang.ICharSequence
    {
        private char DOT = '\u2022';

        private Java.Lang.ICharSequence _source;
        public PasswordCharSequence(Java.Lang.ICharSequence source)
        {
            _source = source;
        }

        public char CharAt(int index)
        {
            return _source.CharAt(index);
        }

        public int Length()
        {
            return _source.Length();
        }

        public Java.Lang.ICharSequence SubSequenceFormatted(int start, int end)
        {
            return _source.SubSequenceFormatted(start, end); // Return default
        }

        public IEnumerator<char> GetEnumerator()
        {
            return _source.GetEnumerator();
        }

        System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator()
        {
            return _source.GetEnumerator();
        }
    }

Answer 2

The phone number pad is the closest thing I've found (set inputType="phone" on your EditText).