How to draw a smooth line with blur in Qt on iOS?

Question

Qt

Draw a QGraphicsLineItem with QGraphicsBlurEffect:

QGraphicsLineItem* lineItem = _scene->addLine(30, 30, 100, 100, *pen);
QGraphicsBlurEffect* blur = new QGraphicsBlurEffect();
lineItem->setGraphicsEffect(blur);

Here's what happened on the desktop , and here's what happened on iOS: .
The renderHints method doesn't help. Why is this happening?

Answer 1

If I'm not mistaken, they have this bug in the tracker already.
So, probably just wait for a fix or patch Qt yourself;)