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[Linus Rydberg <Linus.Rydberg@xxxxxxxxxxxx>]

Thanks, but these changes does nothing about the crash. It still crashes when starting to drag. I must have found a bug, but what is the extent of it. Is drag and drop unusable on Ubuntu Touch?

/Linus Rydberg

________________________________________
Från: Ubuntu-phone [ubuntu-phone-bounces+linus.rydberg=cybercom.com@xxxxxxxxxxxxxxxxxxx] för Abraham Helpsing [abrahamvanhelpsing@xxxxxxxxx]
Skickat: den 19 april 2013 14:20
Till: ubuntu-phone@xxxxxxxxxxxxxxxxxxx
Ämne: Re: [Ubuntu-phone] Crash on drag and drop

This is the example code from the Qt project:


import QtQuick 2.0

Item<http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-item.html> {
    width: 200; height: 200

    DropArea<http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-droparea.html> {
        x: 75; y: 75
        width: 50; height: 50

        Rectangle<http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-rectangle.html> {
            anchors.fill: parent
            color: "green"

            visible: parent.containsDrag
        }
    }

    Rectangle<http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-rectangle.html> {
        x: 10; y: 10
        width: 20; height: 20
        color: "red"

        Drag.active: dragArea.drag.active
        Drag.hotSpot.x: 10
        Drag.hotSpot.y: 10

        MouseArea<http://qt-project.org/doc/qt-5.0/qtquick/qml-qtquick2-mousearea.html> {
            id: dragArea
            anchors.fill: parent

            drag.target: parent
        }
    }
}


Something I notice:
Your draggable mousearea fills the whole window/application area not the widget you want to drag.

Start with just modifying "Item" to MainView and work from there.

On Fri, Apr 19, 2013 at 12:07 AM, Linus Rydberg <Linus.Rydberg@xxxxxxxxxxxx<mailto:Linus.Rydberg@xxxxxxxxxxxx>> wrote:
Hi

I am not able tu use drag and drop on Ubuntu Touch. It works on the desktop but crashes the application on Ubuntu Touch preview. Does anyone have any idea?

Here is the code that crashes on Nexus 7 using the latest build today (also crashes previous builds).


import QtQuick 2.0
import Ubuntu.Components 0.1


MainView {
    objectName: "mainView"
    applicationName: "test1"
    id: root

    width: units.gu<http://units.gu>(100)
    height: units.gu<http://units.gu>(100)

    MouseArea {
        id: mouseArea
        anchors.fill: parent
        drag.target: dragable
        drag.axis: Drag.XAndYAxis

        onReleased: {
            dragable.Drag.drop(Qt.LinkAction);
        }
    }

    Rectangle {
        id: dropzone
        x: units.gu<http://units.gu>(30)
        y: units.gu<http://units.gu>(30)
        width: units.gu<http://units.gu>(20); height: units.gu<http://units.gu>(20)
        radius: units.gu<http://units.gu>(10)
        color: "black"

        DropArea{
            anchors.fill: parent

            onDropped: {
                console.log("onDropped ");
            }
            onEntered: {
                console.log("onEntered ");
            }
            onExited: {
                console.log("onExited ");
            }
        }
    }

    Rectangle {
        id: dragable
        width: units.gu<http://units.gu>(10); height: units.gu<http://units.gu>(10)
        radius: units.gu<http://units.gu>(5)
        color: "yellow"
        Drag.active: mouseArea.drag.active
    }
}
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