How to update size of content in ScrollView ?

[r3d9u11]

Hello.

I've just faced the trouble: ScrollView doesn't show scroll bars after x:y position of child element was changed (new x:y position greater than original ScrollView's size).

Is there way to update size of ScrollView's content after child elements were changed ?

Thanks.

[r3d9u11]

@r3d9u11 so, finally I've replaced ScrollView with Flickable and made function, that is refreshing content size. children elements call it manually:

Flickable
{
    id: fieldMap
    anchors.fill: parent
    ScrollBar.horizontal: ScrollBar { active: true; onActiveChanged: { if (!active) active = true; } }
    ScrollBar.vertical: ScrollBar { active: true; onActiveChanged: { if (!active) active = true; } }
    function refreshContentSize()
    {
        fieldMap.contentWidth = fieldMap.width;
        fieldMap.contentHeight = fieldMap.height;
        for (var i = 0; i < fieldMap.contentItem.children.length; ++i)
        {
            var item = fieldMap.contentItem.children[i];
            var itemX = item.x+item.width;
            if ( itemX > fieldMap.contentWidth ) fieldMap.contentWidth = itemX;
            var itemY = item.y+item.height;
            if ( itemY > fieldMap.contentHeight ) fieldMap.contentHeight = itemY;
        }
    }
}

Maybe there is better solution

[r3d9u11]

@r3d9u11 so, finally I've replaced ScrollView with Flickable and made function, that is refreshing content size. children elements call it manually:

Flickable
{
    id: fieldMap
    anchors.fill: parent
    ScrollBar.horizontal: ScrollBar { active: true; onActiveChanged: { if (!active) active = true; } }
    ScrollBar.vertical: ScrollBar { active: true; onActiveChanged: { if (!active) active = true; } }
    function refreshContentSize()
    {
        fieldMap.contentWidth = fieldMap.width;
        fieldMap.contentHeight = fieldMap.height;
        for (var i = 0; i < fieldMap.contentItem.children.length; ++i)
        {
            var item = fieldMap.contentItem.children[i];
            var itemX = item.x+item.width;
            if ( itemX > fieldMap.contentWidth ) fieldMap.contentWidth = itemX;
            var itemY = item.y+item.height;
            if ( itemY > fieldMap.contentHeight ) fieldMap.contentHeight = itemY;
        }
    }
}

Maybe there is better solution