Android Activity 不会自动出现在清单中？

Question

I thought Android Studio automatically adds a new Activity in AndroidManifest.XML for you if you created a new Activity file. Do we actually have to add it manually?

Answer 1

I don't recall it ever automatically adding new Activities outside of the initial setup wizard.

But yes, if it does not automatically add it, then you'll have to add it manually.

Answer 2

是的，您必须手动添加它。

Answer 3

If you add Activity by this step showing in following image, it will automatically add it to manifest and also create a layout xml file for your activity.

Otherwise you have to add it manually. Hope this help you understand.