[Android] - NavigationView state_checked 배경색상 변경

for( int i = 0; i < navigation.getMenu().size(); i++ ) {

  MenuItem tot  = navigation.getMenu().getItem( i );

  int tmpSize   = tot.getSubMenu().size();

  for( int j = 0; j < tmpSize; j++ ) {

    MenuItem temp = tot.getSubMenu().getItem( j );

    temp.setChecked( false );

    temp.setCheckable( true ); // 이놈을 해줘야 selector 에서 checked가 먹힘

  }

}

<?xml version="1.0" encoding="utf-8"?>

<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item

        android:drawable="@color/left_menu_background_over"

        android:state_checked="true" /> // 이친구

    <item

        android:drawable="@android:color/transparent"

        android:state_checked="false" />

</selector>