如何在GXUI中设置LinearLayout的大小

I'm trying to make a grid with GXUI, I use LinearLayout for rows and columns, but I have a problem with resizing it.

package main

import (
  "fmt"

  "github.com/google/gxui"
  "github.com/google/gxui/math"
  "github.com/google/gxui/drivers/gl"
  "github.com/google/gxui/samples/flags"
  "github.com/google/gxui/themes/dark"
)

func appMain(driver gxui.Driver)  {
  theme := dark.CreateTheme(driver)

  window := theme.CreateWindow(800, 600, "Grid")
  window.SetScale(flags.DefaultScaleFactor)
  window.OnClose(driver.Terminate)
  size := window.Viewport().SizeDips()

  grid := theme.CreateLinearLayout()
  grid.SetDirection(gxui.TopToBottom)
  grid.SetSizeMode(gxui.Fill)

  for y := 0; y < 4; y++ {
    row := theme.CreateLinearLayout()
    row.SetDirection(gxui.LeftToRight)

    for x := 0; x < 4; x++ {
      label := theme.CreateLabel()
      label.SetText(fmt.Sprintf("%d", y*4+x))

      cell := theme.CreateLinearLayout()
      cell.SetDirection(gxui.TopToBottom)
      cell.SetSize(math.Size{W: size.W/4, H: size.H/4}) // not actually resizes
      cell.AddChild(label)

      row.AddChild(cell)
    }

    grid.AddChild(row)
  }

  window.AddChild(grid)
}

func main() {
  gl.StartDriver(appMain)
}

This is the result:

Update: GXUI has TableLayout now

You don't need to resize anything. Setting up the LinearLayouts as you are trying to do should have the same effect, but you are making each LinearLayout contain a single label. To make a 4x4 grid, you want one row of 4 columns, with each column having 4 labels. That will make everything grid nicely. Here is code that does that.

code:

package main

import (
    "fmt"

    "github.com/google/gxui"
    "github.com/google/gxui/drivers/gl"
    "github.com/google/gxui/samples/flags"
    "github.com/google/gxui/themes/dark"
)

func appMain(driver gxui.Driver) {
    theme := dark.CreateTheme(driver)

    window := theme.CreateWindow(800, 600, "Grid")
    window.SetScale(flags.DefaultScaleFactor)
    window.OnClose(driver.Terminate)

    row := theme.CreateLinearLayout()
    row.SetDirection(gxui.LeftToRight)
    for c := 0; c < 4; c++ {
        col := theme.CreateLinearLayout()
        col.SetDirection(gxui.TopToBottom)
        for r := 0; r < 4; r++ {
            cell := theme.CreateLabel()
            cell.SetText(fmt.Sprintf("%d", r*4+c))
            col.AddChild(cell)
        }
        row.AddChild(col)
    }

    window.AddChild(row)
}

func main() {
    gl.StartDriver(appMain)
}