menu

 override fun onCreateOptionsMenu(menu: Menu?): Boolean {
        menu?.add(Menu.NONE, 0, 0, "从新导入")
        return true
    }

    override fun onOptionsItemSelected(item: MenuItem?): Boolean {
        if (item?.itemId == 0) {
            MyLog.d("点击从新导入")
            return true
        }
        return super.onOptionsItemSelected(item)
    }