text entered in an edittext vanishes on newer android versions when the text has a condition

Question

I am working on a project where in certain edittexts i want it to contain only alphabets(both small and caps) and white spaces.So i set it dynamically in code as follows:

txtoccupation.setFilters(new InputFilter[] {
                new InputFilter() {
                    public CharSequence filter(CharSequence src, int start,
                            int end, Spanned dst, int dstart, int dend) {
                        if(src.equals("")){ // for backspace
                            return src;
                        }
                        if(src.toString().matches("[a-zA-Z ]+")){
                            return src;
                        }
                        return "";
                    }


                }
            });

The above code works fine in my older android 2.6 phone.That is , when i type in anything other than alphabets and white spaces it wont be shown on the edittext.But when i try the above on a new kitkat device, the text disappears and is shown in the suggestions below.How do i fix this issue?

EDIT: I used an input filter

filter = new InputFilter() { 
            public CharSequence filter(CharSequence source, int start, int end, 
    Spanned dest, int dstart, int dend) { 
                    for (int i = start; i < end; i++) { 
                            if (!Character.isLetter(source.charAt(i))&&!Character.isWhitespace(source.charAt(i))) { 
                                    return ""; 
                            }
                            if(Character.isWhitespace(source.charAt(i))){
                                return " ";
                            }
                    } 
                    return null; 
            } 
    };

what character encodings are you using? – Sanjay Manohar Sep 26 '14 at 12:59 — Sanjay Manohar, Sep 26 '14 at 12:59
@SanjayManohar I dont understand what u r saying. – Achuthan M Sep 26 '14 at 13:01 — Achuthan M, Sep 26 '14 at 13:01

Meenal · Answer 1 · 2014-09-26T13:17:37.647

0

just add this line to the edittext(in your xml), you want to restrict to have alphabets only

android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ "

edited Sep 26 '14 at 13:17

answered Sep 26 '14 at 12:44

Meenal

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i have edited my answer..add space too with text..then it will take spaces also – Meenal Sep 26 '14 at 13:18

score 0 · Answer 2 · answered Sep 26 '14 at 12:52

0

if (currentString.toLowerCase().startsWith(searchString )) { your code }

android provides methods with strings like toLowerCase(),toUpperCase() etc

answered Sep 26 '14 at 12:52

score 0 · Accepted Answer · edited May 23 '17 at 12:14

Another option is to use input filters like this:

    InputFilter filter = new InputFilter() { 
    public CharSequence filter(CharSequence source, int start, int end, 
            Spanned dest, int dstart, int dend) { 
            for (int i = start; i < end; i++) { 
                    if (!Character.isLetterOrDigit(source.charAt(i))) { 
                            return ""; 
                    } 
            } 
            return null; 
    } 
    }; 

    edit.setFilters(new InputFilter[]{filter});

Taken from How do I use InputFilter to limit characters in an EditText in Android?

text entered in an edittext vanishes on newer android versions when the text has a condition

3 Answers3