Add Qt6-Android support

[jbagg]

Add Qt6-Android support

[mariuszmaximus]

Work in progress: https://github.com/mariuszmaximus/QtZeroConf/tree/Qt6

Changes:

• QT += androidextras ==> QT += gui
• QAndroidJniEnvironment ==> QJniEnvironment
• QAndroidJniObject ==>QJniObject
• QtAndroid::runOnAndroidThread ==> QNativeInterface::QAndroidApplication::runOnAndroidMainThread

Todo:
[1]

	nsdManager = QJniObject("qtzeroconf/QZeroConfNsdManager", "(JLandroid/content/Context;)V", reinterpret_cast<quint64>(this), QtAndroid::androidActivity().object());
	if (nsdManager.isValid()) {
		jclass objectClass = env->GetObjectClass(nsdManager.object<jobject>());
		env->RegisterNatives(objectClass, methods, sizeof(methods) / sizeof(methods[0]));
		env->DeleteLocalRef(objectClass);
	}

QtAndroid::androidActivity().object() I don't know what it is in Qt6

[hancerli]

Are you planning to submit a merge request any time soon?

[jbagg]

Did you finish your todo list?

[hancerli]

Seems like it's fixed here in androidnsd.cpp on line 56. Isn't that compiling @mariuszmaximus ?

[jbagg]

ok. I have not tried compiling it yet. Will do tonight. Is it ok if I re-order the commits and squash some together?

[hancerli]

Ah, I think QNativeInterface::QAndroidApplication::context() should be replaced with QNativeInterface::QAndroidApplication::context().object(). I'm testing with 6.7.0 btw.

[jbagg]

Qt6 Android support is now on master