Android Question How to clear old view in panel

nickysuwandi · Oct 16, 2023

Dear All

I have create 1 panel to load layout page base on user click (layout Home, Notif and History).
Each layout have some Lable,Button, B4XFloatTextField, SwiftButton .
My problem is, when i have load layout Notif and back to layout Home. When we click some area, the button in layout Notif still working . So how to clear layout Notif in panel, before i load new Layout (layout home) over it?

Thanks

Nicky

example:

Private Sub lblhome_Click
    Pnlmenuhold.Addview(CreateListItemPage("pghome",Pnlmenuhold.Width, Pnlmenuhold.Height+50 ),0,0,Pnlmenuhold.Width,Pnlmenuhold.Height)
End Sub

Private Sub lblnotif_Click
    Pnlmenuhold.Addview(CreateListItemPage("pgnotif",Pnlmenuhold.Width, Pnlmenuhold.Height+50 ),0,0,Pnlmenuhold.Width,Pnlmenuhold.Height)
End Sub

Private Sub lblhistory_Click
    Pnlmenuhold.Addview(CreateListItemPage("pghistory",Pnlmenuhold.Width, Pnlmenuhold.Height+50 ),0,0,Pnlmenuhold.Width,Pnlmenuhold.Height)
End Sub

Sub CreateListItemPage(namapage As String ,Width As Int, Height As Int) As Panel
    Dim p As Panel
    p.Initialize("")
    Root.AddView(p ,0,0,  Width, Height)
    p.LoadLayout(namapage)
    p.RemoveView
    Return p
End Sub

zed · Oct 16, 2023

Maybe like this

ex:

Sub CreateListItemPage(namapage As String ,Width As Int, Height As Int) As Panel
    if p.IsInitialized then p.RemoveAllNodes
    
    Dim p As Panel
    p.Initialize("")
    ---
    ---

nickysuwandi · Oct 16, 2023

zed said:

Maybe like this

ex:

Sub CreateListItemPage(namapage As String ,Width As Int, Height As Int) As Panel
    if p.IsInitialized then p.RemoveAllNodes
   
    Dim p As Panel
    p.Initialize("")
    ---
    ---

Thanks Zed, this code cause error " Undeclared variable p"

I think this cause because i have upgrade B4A to version 12.50, when using old version i have no problem (version 11.xx).

i have try create some layout, make some button and put panel overwrite (upside) then button,i can still can click the button (is this bug or i have miss some step?).

Thanks

DonManfred · Oct 16, 2023

nickysuwandi said:
i have upgrade B4A to version 12.50, when using old version i have no problem (version 11.xx).

did you replaced the SDK with the new one? The old SDK is no longer compatible.

nickysuwandi · Oct 16, 2023

DonManfred said:
did you replaced the SDK with the new one? The old SDK is no longer compatible.

No, i don't replace, i try it first DonManfred, thanks ???

PaulMeuris · Oct 16, 2023

If the "Pnlmenuhold" panel can only contain 1 ListItemPage panel at a time then you could put this highlighted line 2 before the Pnlmenuhold.Addview line in each subroutine:

B4X:

Private Sub lblhome_Click
    Pnlmenuhold.RemoveAllViews
    Pnlmenuhold.Addview(CreateListItemPage("pghome",Pnlmenuhold.Width, Pnlmenuhold.Height+50 ),0,0,Pnlmenuhold.Width,Pnlmenuhold.Height)
End Sub

You are using a B4A panel, right?

nickysuwandi · Oct 17, 2023

DonManfred said:
did you replaced the SDK with the new one? The old SDK is no longer compatible.

DonManfred, i have dowload new SDK, the result is same ?

nickysuwandi · Oct 17, 2023

PaulMeuris said:
If the "Pnlmenuhold" panel can only contain 1 ListItemPage panel at a time then you could put this highlighted line 2 before the Pnlmenuhold.Addview line in each subroutine:

B4X:

Private Sub lblhome_Click Pnlmenuhold.RemoveAllViews Pnlmenuhold.Addview(CreateListItemPage("pghome",Pnlmenuhold.Width, Pnlmenuhold.Height+50 ),0,0,Pnlmenuhold.Width,Pnlmenuhold.Height) End Sub

You are using a B4A panel, right?

Thanks PaulMeuris, i had using this code before, this make all my view removed not only in Pnlmenuhold

PaulMeuris · Oct 17, 2023

nickysuwandi said:
this make all my view removed not only in Pnlmenuhold

The method RemoveAllViews does remove all the views from the Pnlmenuhold.
Can you explain what you try to do with this code:

B4X:

    Root.AddView(p ,0,0,  Width, Height)
    p.LoadLayout(namapage)
    p.RemoveView

Or better yet, can you attach your project so that we can test it better?

LucaMs · Oct 17, 2023

A simple and practical way is to create overlapping panels, one for each activity (not Android activitiy, obviously, phase) and make only one of them visible at a time.
So you could have a pnlNotif, another pnlHome, load their respective layouts into them and simply set the visibility of them.

nickysuwandi · Oct 17, 2023

LucaMs said:
A simple and practical way is to create overlapping panels, one for each activity (not Android activitiy, obviously, phase) and make only one of them visible at a time.
So you could have a pnlNotif, another pnlHome, load their respective layouts into them and simply set the visibility of them.

LucaMS thanks for you suggestion, i had set inactive panel to visible=False, this solve my problem ? ?

Android Question How to clear old view in panel

nickysuwandi

Member

zed

Active Member

nickysuwandi

Member

DonManfred

Expert

nickysuwandi

Member

PaulMeuris

Active Member

nickysuwandi

Member

nickysuwandi

Member

PaulMeuris

Active Member

LucaMs

Expert

nickysuwandi

Member

Similar Threads

Android Question How to clear old view in panel

Member

Active Member

Member

Expert

Member

Active Member

Member

Member

Active Member

Expert

Member

Similar Threads

Privacy & Transparency

Privacy & Transparency