Function initData

tests/ListViewComponents/VirtualizeContentsViewTest.ts:24–36

(count?, groupSize?)

        STRUCTURENODE_SIZE = 8;

    function initData(count?, groupSize?) {
        count = count || COUNT;
        groupSize = groupSize || 10;

        var items = [];
        for (var i = 0; i < count; ++i) {
            items[i] = {
                title: "Tile" + i,
                group: Math.floor(i / groupSize)
            };
        }
        return items;
    }

    function groupKey(data) {
        return data.group.toString();