package com.example.ex4; import androidx.appcompat.app.AppCompatActivity; import android.os.Bundle; public class JoystickActivity extends AppCompatActivity implements Joystick.JoystickListener { @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_joystick); } //method to handle OnJoystickMoved event public void onJoystickMoved(float xPercent, float yPercent, int source) { UserHandler handler = UserHandler.getInstance(); handler.send_message(true, xPercent); //true is aileron handler.send_message(false, yPercent); //false is elevator } @Override protected void onDestroy() { super.onDestroy(); UserHandler.getInstance().disconnect(); } }