Android Question AScheckbox cannot be cast

[zed]

It works fine with a simple checkbox, but with ASCheckbox the types don't match.
An idea ?
[CODE lang="b4x" title="B4A"]Private Sub DrawCheckBox
Dim disty As Int = 20dip
Dim chkBox(9) As B4XView

For i = 1 To 8
Dim chk As ASCheckbox
chk.Initialize(Me,"chkView")
chkBox(i) = chk '<--the types don't match
chkBox(i).Tag = i

pnlCheckBox.AddView(chkBox(i), 10dip, disty, 30dip, 30dip)
disty = disty + 33dip
Next
End Sub[/CODE]

--------- beginning of main
*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create (first time) **
Error occurred on line: 459 (Main)
java.lang.ClassCastException: b4a.example.ascheckbox cannot be cast to android.view.View
at anywheresoftware.b4a.objects.B4XViewWrapper.asViewWrapper(B4XViewWrapper.java:91)
at anywheresoftware.b4a.objects.B4XViewWrapper.setTag(B4XViewWrapper.java:603)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:348)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:157)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:205)
at anywheresoftware.b4a.debug.Debug.delegate(Debug.java:262)
at b4a.example.main._drawcheckbox(main.java:1126)
at b4a.example.main._activity_create(main.java:443)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:732)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:351)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:255)
at java.lang.reflect.Method.invoke(Native Method)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:157)
at b4a.example.main.afterFirstLayout(main.java:105)
at b4a.example.main.access$000(main.java:17)
at b4a.example.main$WaitForLayout.run(main.java:83)
at android.os.Handler.handleCallback(Handler.java:938)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loopOnce(Looper.java:210)
at android.os.Looper.loop(Looper.java:299)
at android.app.ActivityThread.main(ActivityThread.java:8302)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:556)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:1037)
** Activity (main) Resume **

 

[agraham]

An ASCheckbox is not a B4XView. As the chkBox(9) array is local why not declare it as ASCheckbox?

 

[Alexander Stolte]

chkBox(i) = chk '<--the types don't match

chkBox(i).Tag = chk '<--the types don't match

you forgot the .Tag

[B4X] How to get <custom view here> from <CLV or any other container>

This is a common question and for a good reason. Custom views classes are not views by themselves. The views tree only holds views. This means that this code cannot work: Dim B4XFloatTextField1 As B4XFloatTextField = CLV.GetPanel(x).GetView(y) The actual view that is added to the views tree...

www.b4x.com

 

[Alexander Stolte]

Dim chk As ASCheckbox chk.Initialize(Me,"chkView")

and this way you cant initialize a custom view.
You need the designer properties too and you need to call "DesignerCreateView"
It is better to add the checkbox to a new form and load this form to your panel.

[B4X] I need 100 <custom view here>s. How to add programmatically?

Custom views are designed to be added with the designer. It is however very simple to create a layout file with the custom view and load it multiple times. Tip: remove the call to AutoScaleAll from the designer script. Complete example: Sub Globals Private B4XSwitch1 As B4XSwitch End...

www.b4x.com

 

[zed]

Thanks for the answers.
Other elements (label, imageview) are created in the same way.
For questions of ease of alignment with the other elements, I wanted to use the same principle for everything.

It is better to add the checkbox to a new form and load this form to your panel.

Yes of course. I will proceed differently.
THANKS

 

[Alexander Stolte]

Other elements (label, imageview) are created in the same way.

These elements are also native components, which work differently than custom views.They even have other areas in the designer where you can set something.

 

[zed]

These elements are also native components, which work differently than custom views.

Thank you for the details.
I put the view in a layout and then I loop.