A bit ago I was surprised to find out that http://doc.qt.io/qt-5/android-support.html exists. You might look at it, I can't personally recommend it. See also http://doc.qt.io/qt-5/platform-notes-android.html.
I tend to suggest people at least look at the Google provided workflow. There are "issues" if you attempt to deviate from it which inevitably go back to the design of Android. Your device wasn't meant to do a lot, sadly.
