iOS Question B4XPages - GetNativeParent(Me) is crashing

[Alexander Stolte]

Hello,
on B4A this code works, but on B4I i get this error:

Copying updated assets files (2)
Application_Start
Application_Active
Error occurred on line: 276 (B4XPagesManager)
Expected: UIView, object type: B4IViewController
Stack Trace: (
  CoreFoundation       __exceptionPreprocess + 350
  libobjc.A.dylib      objc_exception_throw + 48
  CoreFoundation       +[NSException raise:format:] + 188
  B4i Example          -[B4IObjectWrapper setObject:] + 258
  B4i Example          -[B4XViewWrapper setObject:] + 144
  B4i Example          +[B4IObjectWrapper createWrapper:object:] + 99
  B4i Example          -[b4i_b4xpage2 _b4xpage_created::] + 1011
  CoreFoundation       __invoking___ + 140
  CoreFoundation       -[NSInvocation invoke] + 321
  B4i Example          +[B4I runDynamicMethod:method:throwErrorIfMissing:args:] + 1669
B4i Example          -[B4ICommon CallSubDebug4::::] + 1063
B4i Example          -[B4ICommon CallSubDebug2::::] + 326
B4i Example          -[b4i_b4xpagesmanager _createpageifneeded::] + 1071
B4i Example          -[b4i_b4xpagesmanager _showpageandremovepreviouspages::] + 809
B4i Example          -[b4i_b4xpages _showpageandremovepreviouspages:] + 474
B4i Example          -[b4i_b4xmainpage _btnlogin_click:] + 346
CoreFoundation       __invoking___ + 140
CoreFoundation       -[NSInvocation invoke] + 321
B4i Example          +[B4I runDynamicMethod:method:throwErrorIfMissing:args:] + 1669
B4i Example          -[B4IShell runMethod:] + 401
B4i Example          -[B4IShell raiseEventImpl:method:args::] + 2361
B4i Example          -[B4IShellBI raiseEvent:event:params:] + 1357
B4i Example          __33-[B4I raiseUIEvent:event:params:]_block_invoke + 51
libdispatch.dylib    _dispatch_call_block_and_release + 12
libdispatch.dylib    _dispatch_client_callout + 8
libdispatch.dylib    _dispatch_main_queue_callback_4CF + 1042
CoreFoundation       __CFRUNLOOP_IS_SERVICING_THE_MAIN_DISPATCH_QUEUE__ + 9
CoreFoundation       __CFRunLoopRun + 2041
CoreFoundation       CFRunLoopRunSpecific + 404
GraphicsServices     GSEventRunModal + 139
UIKitCore            UIApplicationMain + 1605
B4i Example          main + 112
libdyld.dylib        start + 1
???                  0x0 + 1
)

Private toast As BCToast
toast.Initialize(B4XPages.GetNativeParent(Me))

In the attachment is a example project, on B4XPage2 i Initialize the toast.

The code is from this thread:

B4XPages - BCToast keep visible if i close a page

Hey, it would be nice if you have the possibility to use the BCToast across all pages and it stays visible when you close the page like in the native ToastMessage.

www.b4x.com

 

[angel_]

Try like this

toast.Initialize(Root)

 

[Alexander Stolte]

Try like this

but then its not global ?

 

[jahswant]

You can try .RootPanel

 

[angel_]

but then its not global ?

I don't understand it as global, you start it in every activity

 

[Erel]

It cannot be global in B4i or B4J and you need to pass Root.

It worked in B4A, as all pages are inside the same activity.