ffdfafc4b4
QIOSTracker registers itself as handlers for system notifications about changes of the screen environment. If no QIOSIntegration instance exists, newly detected screens are not added to the list of known screens (see screenConnected()). This, in turn, will result in a crash if a screen is disconnected and removed in screenDisconnected() as it is not known to qtPlatformScreenFor() and the function returns a nullptr. Consider the QIOSIntegration also whenever a screen is "changed". This is more of a safety measure do avoid crashes for unknown screens. This situation occurs if an iOS device is used to mirror the display via AirPlay and no actual QGuiApplication exists, e.g. Qt is only embedded in a Framework. Pick-to: 6.5 6.2 Fixes: QTBUG-106701 Change-Id: Id778fc5afa7c284b0536ee02b1ba2c10321cc5b1 Reviewed-by: Volker Hilsheimer <volker.hilsheimer@qt.io> Reviewed-by: Lars Schmertmann <lars.schmertmann@governikus.de>