I am no expert on Android programming, but I can tell you that tensorflow is a strong programming framework for AI-ML applications in particular if you run them on Google's cloud or Android. According to teh website https://www.tensorflow.org/lite
"TensorFlow Lite is an open source deep learning framework for on-device inference. "
You can probably find more resources on that website.
For model management you might want to check out ONNX: https://onnx.ai/ Using open source models you can run them on Android or a bunch of other places. You can probably also use AI tools and languages you're already used to build your models.
For Android another option is using Xamarin with VSCode (both open source). There are a lot of good plugins and examples out on GitHub that might save you time in programming.
Based on your question it sounds like maybe you just want to display results? If that's the case and you go with Xamarin check out this open source charting library: https://github.com/aloisdeniel/Microcharts