I developed a game, and build it as an Android APK file. I was not using any assets, only a UI panel and a UI Button. I thought the APK file woul be 3 MB, but it was 18MB.
On the Google Play store, there are many good games using good graphics that have a small size. Some are only 5MB or 6MB. I want to know why I am getting such a large APK file.
How do I reduce the size of my APK file?