If you're like me, don't use QtCreator much, prefer command line and usually have a simple QtQuick view, then this is for you: https://github.com/penk/qml-livereload
QML LiveReload takes QFileSystemWatcher to monitor file changes, and lively updates the view when possible. It's no match for what QtCreator does but comes handy for simple projects.
Update:
Works on remote device too:
