If you don't see the result as is described in the picture bellow then restart android studio. The bug is about I cannot see the preview of the nav_graph.xml however I still can use the code section ...

If you are having issues with the Android emulator, like it not showing up on screen, then this guide will help you to fix it up. Suppose you are developing an Android application, and when you run ...

Click the Split icon in the top right corner of Android Studio to also show the XML source along with the designer. Resolve any dependencies and errors that may appear: Copy the layout XML file of ...