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 doesn't confirm to the number decimal format. Any idea on how I can say inputtype is numberdecimal but a "-" can be allowed?

score 37 · Answer 1 · edited May 23 '17 at 11:54

37

I was able to achieve this behavior by setting digits xml attribute as follows:

<EditText
    ...
    android:inputType="number"
    android:digits="0123456789-"/>

Setting it up programatically (Set EditText Digits Programmatically):

weightInput.setKeyListener(DigitsKeyListener.getInstance("0123456789-"));

edited May 23 '17 at 11:54

Community

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answered Dec 20 '13 at 20:38

7hny

991
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score 8 · Answer 2 · answered Jul 15 '15 at 14:10

8

I managed to do that with:

android:inputType="number|numberSigned"    
android:digits="0123456789-"

answered Jul 15 '15 at 14:10

RoyBS

1,241
16
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score 4 · Answer 3 · edited Jun 27 '11 at 00:56

4

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

edited Jun 27 '11 at 00:56

Brad Mace

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answered Jun 26 '11 at 16:15

Gustavo Dias de Oliveira

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Gustavo, bemace, sorry for not being clear. I am talking about the hyphen inbetween numbers. something like 1-800-555555 and not the sign at front of the number. – bschandramohan Jul 19 '11 at 16:27

score 2 · Accepted Answer · answered Aug 04 '10 at 05:45

2

You will have to write your own KeyListener. You could start by downloading the source of the NumberKeyListener and take it from there.

Martin

answered Aug 04 '10 at 05:45

Martin

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Martin, is there a way I can look at the source code without downloading it from the github? – bschandramohan Aug 05 '10 at 05:55
1

Well there is the web interface at http://android.git.kernel.org/ - but it does not look very helpful. If at all possible you should try to get the source. – Martin Aug 05 '10 at 07:55
1

This answer might help you: http://stackoverflow.com/questions/4172242/live-editing-of-users-input/4172392#4172392 – aleung Feb 19 '11 at 16:40

score 1 · Answer 5 · answered Aug 04 '10 at 05:16

I am having one solution, which may helps you:

Suppose, You want to enter 2-3 numbers with "-" sign for e.g. 203-304-405.23-232.45,

then Allow user to enter this in EditText without setting any attributes. and then you can Separate each numbers with "split()" function , but be sure that there should be any separator sign in between the tokens.

then

 String tokens[];
 strInput = edittext1.getText.toString();
 tokens = strInput.split(",");

then you can work with each tokens separately as tokens[0], tokens[1], for example:

num1 = tokens[0];
num2 = tokens[1];

Hope this helps you.

Enjoy!!

Thanks Paresh for your insights... You are talking about post processing of the text entered by the user but unfortunately I cannot allow user to enter anything in EditText other than numbers. InputType has to be fixed to decimal :( — bschandramohan, Aug 04 '10 at 05:47

score 0 · Answer 6 · answered Jul 20 '23 at 09:19

In my case, I just created a simple class that allows numbers and hyphen only.

private static class myFilter implements InputFilter {
    @Override
    public CharSequence filter(CharSequence source, int start, int end,
                               Spanned dest, int dstart, int dend) {
        // Allow digits and hyphen in the input
        String filters = "0123456789-";

        StringBuilder filteredStringBuilder = new StringBuilder();
        for (int i = start; i < end; i++) {
            char currentChar = source.charAt(i);
            if (filters.contains(String.valueOf(currentChar))) {
                filteredStringBuilder.append(currentChar);
            }
        }

        return filteredStringBuilder.toString();
    }
}

Then in the ActivityClass, to add filter to the EditText:

    EditText _eText;
    _eText = findViewById(R.id.editText);
    _eText.setInputType(InputType.TYPE_CLASS_TEXT);
    _eText.setFilters(new InputFilter[]{new myFilter()});

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

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