<ToggleButton
????android:textOff="a"
????android:textOn="b"
????android:checked="false"
????android:id="@+id/toggleButton"
????android:layout_width="match_parent"
????android:layout_height="wrap_content"
????android:layout_marginTop="36dp"
????android:text="ToggleButton"
????app:layout_constraintEnd_toEndOf="parent"
????app:layout_constraintStart_toStartOf="parent"
????app:layout_constraintTop_toBottomOf="@+id/autoCompleteTextView"?/>

public?class?MainActivity?extends?AppCompatActivity{
????private?TextView?tetv;
????private?ToggleButton?tb;

????protected?void?onCreate(Bundle?savedInstanceState)?{
????????super.onCreate(savedInstanceState);
????????setContentView(R.layout.activity_main);
????????tb?=?(ToggleButton)findViewById(R.id.toggleButton);
????????tb.setOnCheckedChangeListener(new?CompoundButton.OnCheckedChangeListener()?{
????????????@Override
????????????public?void?onCheckedChanged(CompoundButton?buttonView,?boolean?isChecked)?{
????????????????tetv.setText(isChecked???"asd"?:?"vrvre");
????????????}
????????});
????}
????}