how to set input type to be numberdecimal but also allow a “-”

Question

I have set input type to be numberdecimal but also want to populate the editText with a \"-\" programmatically. I can add the text but then I am unable to edit the text as it do

Answer 1

I found a very easy solution:

editText.setKeyListener(new DigitsKeyListener(true, true));    

The first true is for whether is signed input, the second true is for decimal.
Hope that helps