Android Question Moving Panels .... Again.

[rfhall50]

Have been through so many threads, now absolutely confused. Many older threads refer to new ways. Just don't know which is the newest!
Situation is:

• Have a layout done in Designer.
• Width is fine; no problems.
• Height is much too long to see on screen at one time.
• I load the layout using ..... Activity.LoadLayout("category_view")
• Panel appears; everything OK for what I see. Buttons work great.
• Problem is that I can not get get to the buttons below the view screen.
• I want to "touch" the screen and move it up or down to get to the other buttons.
• A VERY SIMPLE example would be very much appreciated.

Thank You.
Bobby

 

[DonManfred]

Use a Scrollview or custom list view

 

[rfhall50]

Use a Scrollview or custom list view

(I am just about ready to give up! Sorry, had to get that off my chest.)
I did just as Don suggested. I have narrowed it down to as little code as possible. I have 1 forum example that works perfectly. I cut my code down to match the example, and it continues to tell me that in MY code a panel has not been initialized. Identical example code does NOT give the message. Error messages are:

** Service (starter) Create **
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
Error occurred on line: 13 (Main)
java.lang.RuntimeException: Object should first be initialized (Panel).
at anywheresoftware.b4a.AbsObjectWrapper.getObject(AbsObjectWrapper.java:50)
at anywheresoftware.b4a.objects.ViewWrapper.getHeight(ViewWrapper.java:143)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:702)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:336)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:246)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:134)
at b4a.example.main.afterFirstLayout(main.java:102)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:80)
at android.os.Handler.handleCallback(Handler.java:815)
at android.os.Handler.dispatchMessage(Handler.java:104)
at android.os.Looper.loop(Looper.java:194)
at android.app.ActivityThread.main(ActivityThread.java:5666)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:959)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:754)
** Activity (main) Resume **

MyCode : (Gives Error)

Sub Process_Globals
End Sub

Sub Globals
    Dim scvTest As ScrollView
    Dim pnlTest As Panel
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Main")
    scvTest.Panel.LoadLayout("category_view")
'    scvTest.Panel.Height = pnlTest.Height
    scvTest.Panel.Height=pnlTest.Height
End Sub
Sub Activity_Resume
   
End Sub

Sample Code : (No Error)

Sub Process_Globals
End Sub

Sub Globals
    Dim scvTest As ScrollView
    Dim pnlTest As Panel
End Sub

Sub Activity_Create(FirstTime As Boolean)
    Activity.LoadLayout("Main")
    scvTest.Panel.LoadLayout("ScrollViewLayout")
    scvTest.Panel.Height = pnlTest.Height
End Sub
Sub Activity_Resume

End Sub

I am also including all BAL files. Note that the first "main.bal" is for my code, the second "main.bal" is from the sample. Sorry to have so much here but I am at my wits end!
Thank You.
Bobby

 

[DonManfred]

Please use file ~>Export as zip from the IDE to Export a Project to zip. Upload this zip please

 

[rfhall50]

Don ... Thank you so much for the response. The zip file is attached.
Bobby

 

[rfhall50]

Thank all of you very much. Got it working this AM. Decided to put a stationary panel over the scrolling panel - just loaded 1 panel over the other. Did have one challenge when I first got the scrolling feature working. When I scrolled to the bottom, some of the buttons were missing. I lengthened the button panel so that there was a large blank area at the bottom. It now scrolls down and shows the last button.

Again, thank all of you very much!
Bobby

Maybe one of these days I will be able to help someone else.