<LinearLayout
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:orientation="vertical">

    <EditText
        android:id="@+id/search"
        android:layout_width="fill_parent"
        android:layout_height="50dp"
        android:padding="10dp"
        android:includeFontPadding="true"
        android:backgroundTint="@android:color/darker_gray"
        android:textSize="15sp"
        android:drawableRight="@drawable/search_icon"/>

</LinearLayout>

View rootView = findViewById(android.R.id.content);
addContentView(suggestions,rootView.getLayoutParams());