问题
I am using Android Studio and its SDK Manager to download API versions for Android development.
I am wondering if I need to download the "Sources" items for the API versions I want to work with (see screenshot below). I don't need to change any source code or anything like that; I'm just doing normal Android development.
来源：https://stackoverflow.com/questions/59404778/android-sdk-do-you-need-to-download-sources-with-android-api-versions