Note that this question Is GUI for Android SDK manager gone? has been answered with a solution that was correct in the past, but no longer addresses the problem.
In the past, I have run IntelliJ Idea to develop Android projects, and the GUI SDK manager was available. Returning to Android development I now find https://developer.android.com/studio/index.html only offers a command-line stand-alone SDK manager.
How can I install the GUI SDK manager? I am considering installing Android Studio just to get it and then maybe uninstall Android Studio and retain the SDK manager. I suspect I might have the same problems with AVDs.
Specifically with solutions offered elsewhere:
.../tools/android.bat
only offers command-line options.../tools/bin/sdkmanager.bat
only offers command-line options#Android SDK GUI is here to stay
I am glad to inform the community that there is still a fully functional workaround to use the Android SDK whilst utilising the traditional GUI that most users are accustomed to. I am pleased to say that the GUI is here to stay (despite having been officially cut off sometime in SDK 26)
If you are starting from scratch I suggest you go through this post first: How do I download the Android SDK without downloading Android Studio?
Here the most important thing is that you must first install the base packages (i.e sdk tools, platform-tools, GUI sdk and AVD manager etc) found in the last installer version of SDK if you are starting form scratch, otherwise you can skip this step if you already a working sdk installation.
I discovered that even if you update the "SDK tools", the latest version that you can get is always 25.x.x
which has problem on its own as it doesn't allow you to run API levels 26, 27 or 28, as I pointed out in my post on another site: Can't start Android 8.0 Oreo on emulator: “Decryption unsuccessful”
After some weeks of investigation I figured out, this was something to do the outdated emulator which is no longer provided unless you running Android Studio (which is contrary to what we want to achieve)
From the looks of things it seems the emulator (originally distributed as part of the Android SDK Tools) is no longer updated since version 25.2.3
Thus the workaround involves a "manual/forced upgrade" of emulator tools. Currently I successfully upgraded to version 27.3.8 (and running Android 9 smoothly).
The workaround
To shorten the story, firstly make sure the base packages are still intact, and upgrade the emulator as follows:
Instructions
%USERPROFILE%\Android\android-sdk\tools
or relevant path (yes you have to merge it into that folder, since the emulator doesn't have all libraries and files)Android SDK manager (GUI)
Now prepare your AVD (API level 27 or 28);
Android AVD manager
Run the newly created virtual devices and you should be good to go:
#Be sure to update the relevant tools, images etc to get the best experience
Important links
Base and Emulator tools(zip)
Update: Added latest emulator versions
Emulator version 28.0.22 (latest linux os latest)
Emulator version 28.0.22 (windows os latest)
Emulator version 28.0.22(mac os latest)
Update 2: Newer emulator versions
Emulator version 30.1.5 (latest linux os latest)
Emulator version 30.1.5 (windows os latest)
Emulator version 30.1.5(mac os latest)
Special thanks to androiddev for providing links for linux, eaglemt and Vladyslav Panchenko for providing the links to repos and mostly important for mac os links.
Conclusion
It seems Google intentionally decide to pull the plug on GUI for standalone Android SDK in favour of Android studio perhaps because of potential security bugs, but whatever the reason,it may not sound convincing for someone just needing the standalone package...