EditText复制，剪切，粘贴无法以编程方式实现它

Question

我正在以编程方式实现EditText，代码就像这样

private View createTextField(String schemaName, LinearLayout.LayoutParams params2, String fieldMaxLength) {
    final EditText editText = new EditText(mContext);
    //editText.setHint(field.getDisplayName());
    // set the layoutParams on the button
    editText.setLayoutParams(params2);
    editText.setTextSize(TypedValue.COMPLEX_UNIT_SP, editTextSize);
    editText.setTypeface(Typeface.create("sans-serif-bold", Typeface.NORMAL));
    editText.setTextColor(getResources().getColor(R.color.edit_text_color));
    if (schemaName.equals("Notes")) {
        editText.setMaxLines(10);
        editText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES | InputType.TYPE_TEXT_FLAG_MULTI_LINE);
    } else {
        editText.setInputType(InputType.TYPE_CLASS_TEXT | InputType.TYPE_TEXT_FLAG_CAP_SENTENCES);
    }
    if (fieldMaxLength != null) {
        try {
            int maxLength = Integer.parseInt(fieldMaxLength);
            editText.setFilters(new InputFilter[]{new InputFilter.LengthFilter(maxLength)});
        } catch (NumberFormatException nfe) {

        }
    }
    return editText;
}

长按我得到复制，剪切和粘贴的选项，但它们都没有工作。

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请帮助我，我做错了什么？