If you want to create Minecraft animations or skins on your Android device, you should look for apps specifically designed for mobile. While none are as powerful as Mine-imator, they serve as good starting points:

He opened the application. It looked strange—a Windows-style desktop compressed into the touch interface of Android.

These methods are not officially supported and can lead to performance issues. Users on the Mine-Imator forums have reported that these methods should only be used for “rigging some simple rigs not in creating animations or wallpapers”. The forum post even concludes, “Realize 100% the reason why there isn’t an Android port” when showing the extremely low framerate.