> Hello,
> I am trying to disable Qt auto-scrolling on mobile devices(iOS, Android) when
> focusing on an input field in QtQuick.
>
> For iOS it was pretty simple and just for a proof of concept making
> QIOSInputContext::scrollableRootView to always to return 0 disabled the
> auto-scrolling so we can in our app deal with keyboard showing or hiding. We
> have our own complex UI and auto-scrolling makes it a bad user experience.
> Dealing with it turned out to be more work and never ending race condition.
>
> So, it works very good now on iOS, my next step will be android and this is
> not that straightforward. Not familiar with Android internals, and after
> reading Android platform plugin and base java/jar sources i am still puzzled
> when the scrolling happens.
>
> Does anybody can point me where to look? This will save time but i am going
> to dig into it anyway, so this is not a request.
>
> The actual question is, if disabling will show it is possible, what would be
> the solution to make it available to developers? For complex apps, the
> auto-scroll does not make sense.
> I looked into QPlatformIntegration classes, the only generic method is to set
> QPlatformWindow flags. At the same time with this little switch i do not want
> to break binary compatibility or change a lot of base classes. Having it
> available in the C++ at least makes it flexible to use the auto-scroll or not.
I do have some experience with this, yeah, I find it frustrating at times.
What I did was to represent the keyboard rect in my layout. But as you can see
with the code below, I commented it out. I remember having experiences some
Android/iOS differences. (As evidenced by the logic). It seems that this code
was to handle the issue of the keyboard coming up over the listview. I also
have have a comment in my android manifest: <!--
android:windowSoftInputMode="adjustResize" --> which seems to indicate that I
removed that from the defaults, or I at least experimented with it.
Anyhow, better control of the keyboard/window behavior would be greatly
appreciated.
Item {
id: keyboardSpacer
height: 0
anchors{
left: parent.left
right: parent.right
bottom: parent.bottom
}
}
Connections {
target: Qt.inputMethod
onKeyboardRectangleChanged: {
console.log("Qt.inputMethod.visible:",
Qt.inputMethod.visible, Qt.inputMethod.keyboardRectangle.height
//keyboardSpacer.height = (Qt.platform.os ===
"android") ? Qt.inputMethod.keyboardRectangle.height / Screen.devicePixelRatio:
0;
listView.positionViewAtEnd()
}
}
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