Lets say that we want to build a layout such as the above where the screen is split into two halves.
If we try to build this layout with a single layout file we will quickly meet a problem.
We will add this designer script to split the screen:
B4X:
pnlTop.SetTopAndBottom(0, 50%y)
pnlBottom.SetTopAndBottom(50%y, 100%y)This means that we will not be able to use anchors and will need to set the size of all the views in the designer script.
However there is a better solution, we can split the layout into three nice and clean layout files and load them with:
B4X:
Sub Globals
Private WebView1 As WebView
Private pnlTop As B4XView
Private pnlBottom As B4XView
End Sub
Sub Activity_Create(FirstTime As Boolean)
Activity.LoadLayout("Main")
pnlTop.LoadLayout("Top")
pnlBottom.LoadLayout("Bottom")
End SubNote that the variant size doesn't matter. The nested layouts will be resized based on the parent panels sizes.