示例#1
0
文件: main.go 项目: nelsam/gxui
// Number picker uses the gxui.DefaultAdapter for driving a list
func numberPicker(theme gxui.Theme, overlay gxui.BubbleOverlay) gxui.Control {
	items := []string{
		"zero", "one", "two", "three", "four", "five",
		"six", "seven", "eight", "nine", "ten",
		"eleven", "twelve", "thirteen", "fourteen", "fifteen",
		"sixteen", "seventeen", "eighteen", "nineteen", "twenty",
	}

	adapter := gxui.CreateDefaultAdapter()
	adapter.SetItems(items)

	layout := theme.CreateLinearLayout()
	layout.SetDirection(gxui.TopToBottom)

	label0 := theme.CreateLabel()
	label0.SetText("Numbers:")
	layout.AddChild(label0)

	dropList := theme.CreateDropDownList()
	dropList.SetAdapter(adapter)
	dropList.SetBubbleOverlay(overlay)
	layout.AddChild(dropList)

	list := theme.CreateList()
	list.SetAdapter(adapter)
	list.SetOrientation(gxui.Vertical)
	layout.AddChild(list)

	label1 := theme.CreateLabel()
	label1.SetMargin(math.Spacing{T: 30})
	label1.SetText("Selected number:")
	layout.AddChild(label1)

	selected := theme.CreateLabel()
	layout.AddChild(selected)

	dropList.OnSelectionChanged(func(item gxui.AdapterItem) {
		if list.Selected() != item {
			list.Select(item)
		}
	})

	list.OnSelectionChanged(func(item gxui.AdapterItem) {
		if dropList.Selected() != item {
			dropList.Select(item)
		}
		selected.SetText(fmt.Sprintf("%s - %d", item, adapter.ItemIndex(item)))
	})

	return layout
}