Android Question The specified child already has a parent. You must call removeView()...

[Marco Maria Vilucchi]

Hi all,
I have this error:

risposta : OK
dettaglioatleta$ResumableSub_RiempiItemresume (java line: 963)
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.
    at android.view.ViewGroup.addViewInner(ViewGroup.java:3770)
    at android.view.ViewGroup.addView(ViewGroup.java:3623)
    at android.view.ViewGroup.addView(ViewGroup.java:3599)
    at anywheresoftware.b4a.objects.PanelWrapper.AddView(PanelWrapper.java:65)
    at com.mamavi.webfitness.dettaglioatleta$ResumableSub_RiempiItem.resume(dettaglioatleta.java:963)
    at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:240)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:180)
    at anywheresoftware.b4a.keywords.Common$11.run(Common.java:1151)
    at android.os.Handler.handleCallback(Handler.java:733)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:146)
    at android.app.ActivityThread.main(ActivityThread.java:5602)
    at java.lang.reflect.Method.invokeNative(Native Method)
    at java.lang.reflect.Method.invoke(Method.java:515)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1283)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1099)
    at dalvik.system.NativeStart.main(Native Method)
java.lang.IllegalStateException: The specified child already has a parent. You must call removeView() on the child's parent first.

The code is:

    Fotolo.Initialize("")
    Fotolo.RemoveView
    fotostruttura.Initialize(File.DirAssets,"webfitnesstrasp.png")
    Fotologo.Initialize(File.DirDefaultExternal,"logoasso.jpg")
    Fotolo.Bitmap=fotostruttura
    If Main.WFStrutturalogo<>"" Then
        Dim j As HttpJob
        j.Initialize("", Me)
        j.Download(Main.WFStrutturalogo)
        Wait For (j) JobDone(j As HttpJob)
        If j.Success Then
            Dim FotoBit As Bitmap = j.GetBitmap
        End If
        j.Release
        Fotolo.Bitmap = FotoBit
    End If
    wfNorizie.Panel.AddView(Fotolo, 20%x,wtop,60%x,30%x)
    Fotolo.Gravity=Gravity.FILL

Error is on addview statement.
Note that I use RemoveView....
Why happens it?
Thanks
Marco

 

[Erel]

Is Fotolo a view that is also added with the designer?

 

[Marco Maria Vilucchi]

no only by code.
I add Fotolo on activity create and then on activity resume
I need to do it to refresh data

 

[Erel]

Why do you need to remove the view and add a new one? Why not update the view directly?

 

[Marco Maria Vilucchi]

I need only refresh bitmap, but I have always this error (with and without removeview)

 

[Erel]

You should add the view in Activity_Create and never initialize it again.

The best option is to add it with the designer and never initialize it at all.

 

[Marco Maria Vilucchi]

I modified my code and call it both in create and in resume, but same error.
The error is on addview
I can't use designer cause wfNotizie is a scrollview.

If Fotolo.IsInitialized Then
    Else
        Fotolo.Initialize("")
    End If
    fotostruttura.Initialize(File.DirAssets,"webfitnesstrasp.png")
    Fotologo.Initialize(File.DirDefaultExternal,"logoasso.jpg")
    Fotolo.Bitmap=fotostruttura
    If Main.WFStrutturalogo<>"" Then
        Dim j As HttpJob
        j.Initialize("", Me)
        j.Download(Main.WFStrutturalogo)
        Wait For (j) JobDone(j As HttpJob)
        If j.Success Then
            Dim FotoBit As Bitmap = j.GetBitmap
        End If
        j.Release
        Fotolo.Bitmap = FotoBit
    End If
    wfNorizie.Panel.AddView(Fotolo, 20%x,wtop,60%x,30%x)
    Fotolo.Gravity=Gravity.FILL

 

[GMan]

wfNorizie.Panel.AddView(Fotolo, 20%x,wtop,60%x,30%x)

60%x, 30%x ????

 

[Marco Maria Vilucchi]

It is only an example, then thereis this code:

    Public hei, wid As String
    hei = Fotologo.Height
    wid = Fotologo.Width
'    Log ("hei: " & hei & " wid: " &wid)
    If (hei/wid<=0.5) Then
        Fotolo.Height=hei*Fotolo.Width/wid
    Else
        Fotolo.Width=wid*Fotolo.Height/hei
    End If
    Fotolo.Left=(100%x - Fotolo.Width) / 2

It works.
The problem is another......
Any idea?

 

[ilan]

It is only an example, then thereis this code:

    Public hei, wid As String
    hei = Fotologo.Height
    wid = Fotologo.Width
'    Log ("hei: " & hei & " wid: " &wid)
    If (hei/wid<=0.5) Then
        Fotolo.Height=hei*Fotolo.Width/wid
    Else
        Fotolo.Width=wid*Fotolo.Height/hei
    End If
    Fotolo.Left=(100%x - Fotolo.Width) / 2

It works.
The problem is another......
Any idea?

maybe upload a small project that demonstrates it. it would be simpler to check and find the problem.

 

[LucaMs]

Public hei, wid As String
hei = Fotologo.Height
wid = Fotologo.Width
' Log ("hei: " & hei & " wid: " &wid)
If (hei/wid<=0.5) Then

Why do you declare hei and wid as string if you use them as number?!?!?!

 

[LucaMs]

Fotolo

Ottavo nano?

 

[LucaMs]

fotolo OR fotologo???

Do you use Tab writing the names of views/variables/subs?

 

[LucaMs]

I would suggest to use logical prefixes for the names of variables and views.

ivFoto for an ImageView
pnlFoto for a panel
bmpFoto for a bitmap
...

 

[Marco Maria Vilucchi]

Thanks all, but the problem is another.
The problem is in the object of the thread.

 

[Erel]

As Ilan wrote we cannot answer without seeing the code. Please upload a small project that demonstrates it.