I imported a number of image assets, and I copied the assets into the project by copy/paste them into the project via Finder on my Mac. I've done a clean/rebuild on the project, and the files & directories showed for a moment, but then they disappeared. Now I can't get the files and the directories to show up. The files are clearly in the directory and project, but they don't show in Android Studio. They are labeled drawable-hdpi, drawable-mdpi, and so on. Here is an image of the files:
Here is my Android Studio:
Switch in project view will show you all folders for example drawable.hdpi and so on check all these folder for all images.