如何在Android上将输入过滤器设置为只接受二进制字符(0或1)？

import android.text.InputFilter;
import android.text.Spanned;

public class BinaryInputFilter implements InputFilter {
    @Override
    public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
        StringBuilder filtered = new StringBuilder();
        for (int i = start; i < end; i++) {
            char character = source.charAt(i);
            if (character == '0' || character == '1') {
                filtered.append(character);
            }
        }
        return filtered.toString();
    }
}

EditText editText = findViewById(R.id.editText);
editText.setFilters(new InputFilter[]{new BinaryInputFilter()});