How to create EditText accepts Alphabets only in android?
EditText state = (EditText) findViewById(R.id.txtState);
Pattern ps = Pattern.compile("^[a-zA-Z ]+$");
Matcher ms = ps.matcher(state.getText().toString());
boolean bs = ms.matches();
if (bs == false) {
if (ErrorMessage.contains("invalid"))
ErrorMessage = ErrorMessage + "state,";
else
ErrorMessage = ErrorMessage + "invalid state,";
}
edittext.setFilters(new InputFilter[] {
new InputFilter() {
public CharSequence filter(CharSequence src, int start,
int end, Spanned dst, int dstart, int dend) {
if(src.equals("")){ // for backspace
return src;
}
if(src.toString().matches("[a-zA-Z ]+")){
return src;
}
return edittext.getText().toString();
}
}
});
please test thoroughly though !
Add this line with your EditText tag.
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
Your EditText tag should look like:
<EditText
android:id="@+id/editText1"
android:digits="abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ"
android:layout_width="fill_parent"
android:layout_height="wrap_content" />
For those who want that their editText should accept only alphabets and space (neither numerics nor any special characters), then one can use this InputFilter
.
Here I have created a method named getEditTextFilter()
and written the InputFilter inside it.
public static InputFilter getEditTextFilter() {
return new InputFilter() {
@Override
public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
boolean keepOriginal = true;
StringBuilder sb = new StringBuilder(end - start);
for (int i = start; i < end; i++) {
char c = source.charAt(i);
if (isCharAllowed(c)) // put your condition here
sb.append(c);
else
keepOriginal = false;
}
if (keepOriginal)
return null;
else {
if (source instanceof Spanned) {
SpannableString sp = new SpannableString(sb);
TextUtils.copySpansFrom((Spanned) source, start, sb.length(), null, sp, 0);
return sp;
} else {
return sb;
}
}
}
private boolean isCharAllowed(char c) {
Pattern ps = Pattern.compile("^[a-zA-Z ]+$");
Matcher ms = ps.matcher(String.valueOf(c));
return ms.matches();
}
};
}
Attach this inputFilter to your editText after finding it, like this :
mEditText.setFilters(new InputFilter[]{getEditTextFilter()});
The original credit goes to @UMAR who gave the idea of validating using regular expression and @KamilSeweryn