Simple ListView not works?

Question

Stage {
    title: "Application title"
    scene: Scene {
        width: 400
        height: 400
        content: [
            ListView {
                items: ["Item", "Item2", "Item3"]
                height:200
}The code runs, no items is displayed in the ListView. But when you click the 1st, 2nd, 3rd line of the listview, then the Items will display.
So is there any bug for ListView?

Answer 1

Yes, this is a bug in ListView.
You can work around this problem by putting the ListView into a container such as a Panel. Containers participate in the layout algorithm so that controls will be sized to their preferred sizes. If you put controls directly into a Scene or into a Group, they might not end up the right size. For example, put a Button into the Scene; then change it text to be longer. The Button won't change size, and the text will be truncated!
We're fixing this for 1.3.
Meanwhile, if you put controls (or any Resizable object) into a Panel, you should set its size not by setting the width and height variables on the object itself, but instead by setting the width and height attributes on a LayoutInfo instance attached to the object. See below.
Stage {
    title: "Application title"
    scene: Scene {
        width: 400
        height: 400
        content: [
            Panel {
                content: [
                    ListView {
                        items: ["Item", "Item2", "Item3"]
                        layoutInfo: LayoutInfo {
                            width: 70
                            height: 200
}