Android Question View.Parent read-only

LucaMs · Oct 11, 2020

Mainly a "wish".

View.Parent is read-only; can Anywhere Software set it as writable too?

I'm "searching" "the" best way to share B4XViews between B4XPages. The ideal (just one line) would be:

B4X:

' my second B4XPage
B4XPages.MainPage.MyView.Parent = Root

DonManfred · Oct 11, 2020

You are posting this wish in the wrong forum.

You can not change a Parent of a View. You need to remove the view from its parent and add it to the new parent.
Erel has posted an Example somewhere.

LucaMs · Oct 11, 2020

DonManfred said:
You are posting this wish in the wrong forum.

I know:

LucaMs said:
Mainly a "wish".

DonManfred said:
You can not change a Parent of a View.

I know this too and the reason is because Parent is read-only.

modViewsUtils - code module:

B4X:

Public Sub MoveB4XView(xView As B4XView, Destination As B4XView)
    xView.RemoveViewFromParent
    Destination.AddView(xView, xView.Left, xView.Top, xView.Width, xView.Height)
End Sub

B4X:

Public Sub MoveB4XView2(xView As B4XView, Destination As B4XView, Left As Int, Top As Int, Width As Int, Height As Int)
    xView.RemoveViewFromParent
    Destination.AddView(xView, Left, Top, Width, Height)
End Sub

LucaMs · Oct 11, 2020

But those routines aren't ideal, though.

Example:
MyPage2

B4X:

Private Sub B4XPage_Created (Root1 As B4XView)
    Root = Root1
    Root.LoadLayout("layTwo")
    modViewsUtils.MoveB4XView(B4XPages.MainPage.pnlBottom, Root)
End Sub

If then I need to move pnlBottom to MyPage3 I need to know that it is now in MyPag2.

LucaMs · Oct 11, 2020

So the question is:

LucaMs said:
View.Parent is read-only; can Anywhere Software set it as writable too?

LucaMs · Oct 11, 2020

However, this was more a curiosity than a question or "wish", which came to my mind when replying to an Italian member. If I want to use the same View, even a complex one, I create a Custom View.

DonManfred · Oct 11, 2020

No. This is how Android works. Anywheresoftware can not change Android-Rules.

Android Question View.Parent read-only

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