如何将我现有的 Android Studio 的两个活动转换为两个片段，以便我可以制作导航栏？

Question

I'm new in Android Studio and I've been mostly learning through experimenting so it would be really appreciated if you could explain all the steps please.

I already have an app complete which has two Activities which are connected to each other. I made this in an Empty Activity. Now I want to this to have an Navigation Bar, what do I do?

I tried making a new Navigation Bar Activity and tried to copy paste everything, it worked for the layout file with the xml file but I can't where I should be putting in my code? I searched up numerous posts to no avail. My original code had over 300 lines so I really can't write it all over again. Can someone please help me out?

I'm doing this app in Java.

Answer 1

You'll need to use just one main activity and convert the current activities to Fragments. So if you've not heard of Fragments see here https://www.google.com/url?sa=t&source=web&rct=j&url=https://developer.android.com/guide/fragments&ved=2ahUKEwj7wpaxxJnvAhXCx4UKHf9tAqQQFnoECAMQAg&usg=AOvVaw13OtAaEKbecXytTb4qLxel

Then you can place a navigation bar widget on the main activity, this can be configured to the amount of fragments you need.