How do I restrict my EditText input to numerical (possibly decimal and signed) input?

Question

I have read Android: Limiting EditText to numbers and How do I show the number keyboard on an EditText in android?. Unfortunately, none of them seems to fit my needs.

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Answer 1

TO set the input type of EditText as decimal use this code:

EditText edit = new EditText(this);
edit.SetRawInputType(Android.Text.InputTypes.NumberFlagDecimal | Android.Text.InputTypes.ClassNumber);

Answer 2

put this line in xml

 android:inputType="number|numberDecimal"

Answer 3

my solution:`

   public void onTextChanged(CharSequence s, int start, int before, int count) {
   char ch=s.charAt(start + count - 1);
   if (Character.isLetter(ch)) {
       s=s.subSequence(start, count-1);
       edittext.setText(s);
    }

Answer 4

Try using TextView.setRawInputType() it corresponds to the android:inputType attribute.

Answer 5

There's no reason to use setRawInputType(), just use setInputType(). However, you have to combine the class and flags with the OR operator:

edit.setInputType(InputType.TYPE_CLASS_NUMBER | InputType.TYPE_NUMBER_FLAG_DECIMAL | InputType.TYPE_NUMBER_FLAG_SIGNED);