There is, with Qt 5.6, a simple way to call Java methods in a Qt application : Android extras. As one may guess, this simple way is limited to the Android platform.
Is there a way to write my application such as it is multiplatform(1) and can use JNI calls to Java methods ?
Moreover, is there a simple way ? I mean Android extras provides an environment and an API that let me concentrate on coding what my application do. I do not waste time in looking for a way to interface both native and JVM worlds, trying to solve platform dependent problems.
There has been a similar question asked : How can I deploy a mixed C++/Java (JNI) application?
(1) By multiplatform, I mean IOS, Linux, Windows in addition to Android.