Radio Buttons

 XML

<RadioGroup
    android:id="@+id/radioGroup"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    app:layout_constraintBottom_toBottomOf="parent"
    app:layout_constraintEnd_toEndOf="parent"
    app:layout_constraintStart_toStartOf="parent"
    app:layout_constraintTop_toTopOf="parent">

    <RadioButton
        android:id="@+id/btnOrange"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="15dp"
        android:text="Orange"
        android:fontFamily="@font/poppins_medium"
        android:textColor="@color/orange" />

    <RadioButton
        android:id="@+id/btnBlue"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="15dp"
        android:text="Blue"
        android:fontFamily="@font/poppins_medium"
        android:textColor="@color/primary" />

    <RadioButton
        android:id="@+id/btnGreen"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="15dp"
        android:text="Green"
        android:fontFamily="@font/poppins_medium"
        android:textColor="@color/green" />

    <RadioButton
        android:id="@+id/btnRed"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:padding="15dp"
        android:text="Red"
        android:fontFamily="@font/poppins_medium"
        android:textColor="@color/red" />
    
</RadioGroup>

JAVA

RadioGroup radioGroup;
RadioButton btnOrange, btnBlue, btnGreen, btnRed;

    radioGroup.setOnCheckedChangeListener(new RadioGroup.OnCheckedChangeListener() {
        @Override
        public void onCheckedChanged(RadioGroup group, int checkedId) {

            switch (checkedId){
                case R.id.btnOrange:
                    constraintLayout.setBackgroundColor(ContextCompat.getColor(RadioButtonActivity.this,R.color.orange));
                    break;

                case R.id.btnBlue:
                    constraintLayout.setBackgroundColor(ContextCompat.getColor(RadioButtonActivity.this,R.color.primary));
                    break;

                case R.id.btnGreen:
                    constraintLayout.setBackgroundColor(ContextCompat.getColor(RadioButtonActivity.this,R.color.green));
                    break;

                case R.id.btnRed:
                    constraintLayout.setBackgroundColor(ContextCompat.getColor(RadioButtonActivity.this,R.color.red));

            }
        }
    });

OUTPUT