Support for gestures like swiping in PyQt5

[Giuseppe Corbelli]

On 2/24/21 9:40 AM, Frans Fürst wrote:
> I'm trying to make a PyQt5 application for Android react to swipe 
> gestures (in order to let the user swipe through pictures). I didn't 
> find much documentation about this (neither for C++ nor Python) but I 
> came up with an approach which looks plausible to me:
> 
> |class MyViewer(QtWidgets.QLabel): def __init__(self, parent=None): 
> super().__init__(parent=parent) self.grabGesture(QtCore.Qt.SwipeGesture) 
> def event(self, event): if event.type() == QtCore.QEvent.Gesture: # <= 
> this won't happen print("Hello event!") return super().event(event)|
> 
> The app runs without errors but the event() method does not receive any 
> events that look like gestures (at least on Android an Linux, but I 
> don't know if I have to expect gestures work on Linux at all).
> 
> I've posted a question on StackOverflow, but with no answers yet: 
> https://stackoverflow.com/questions/66304454/receive-gestures-in-pyqt5-for-android 
> <https://stackoverflow.com/questions/66304454/receive-gestures-in-pyqt5-for-android>
> 
> Are there any known issues with gestures on Android with PyQt5?
> Did I forget something important? Or am I on a totally wrong path here?

As far as I can tell you're on the right path.
I assume you've started from
https://doc.qt.io/qt-5/gestures-overview.html

On a desktop platform it does not likely work out of the box:
https://stackoverflow.com/questions/49287314/qgestureevent-for-mouse

-- 
Giuseppe Corbelli