EditText限制输入表情

在代码中添加：

    editText.setFilters(new InputFilter[]{inputFilter, new InputFilter.LengthFilter(10)});//禁止输入表情以及限制输入长度为10

    InputFilter inputFilter = new InputFilter() {
        Pattern emoji = Pattern.compile("[\ud83c\udc00-\ud83c\udfff]|[\ud83d\udc00-\ud83d\udfff]|[\u2600-\u27ff]",Pattern.UNICODE_CASE | Pattern.CASE_INSENSITIVE);
        @Override
        public CharSequence filter(CharSequence source, int start, int end, Spanned dest, int dstart, int dend) {
            Matcher emojiMatcher = emoji.matcher(source);
            if (emojiMatcher.find()) {
                ToastUtil.show(mContext, "昵称不可以输入表情");
                return "";
            }
            return null;
        }
    };