And your app is for your self only (run only on your phone), or run on several phones? will the user can check other's data? You need to tell us more abour your app.
For how to use Chart component, you can read this:
And your app is for your self only (run only on your phone), or run on several phones? will the user can check other's data? You need to tell us more abour your app.
For how to use Chart component, you can read this: