DIsplay another QML file during initialization

Mhm… I can’t find a solution for my issue… At first, it seemed easy but… it’s not. So, how would you do this in QT5/QML? Just after the application starts, display the content of a QML file (“Please wait while connecting to the server…”, for example). When the message is displayed, do all the initialization stuffs that take a long time (connect to a server, get data from the server, create objects that will be used by the QML application,…). The init is done in C++. When everything is ready, load another QML file that will use objects that were created during init. Thanks for your help!