我需要一个示例教程如何激活和停用偏好活动中的元素。
For example in the picture below when the Wi-Fi check box is unselected I can not touch the Network notification check box and it turns gray, when the Wi-Fi check box is selected then I can touch the other check box.
另外,当启用 whi-fi 复选框时,如何填充添加 Wi-Fi 网络选项卡?