Input filter (space not allowed) for EditText
This example which prevent the user to enter blank space in edit text field in Android app EditText.setFilters(new InputFilter[] { filter }); 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.isSpaceChar(source.charAt(i))) { return ""; } } return null; } }