How can I unbind callback?

[Zbobo.1]

Hi ST engineers,

I make a time-display-container and bind callback from RTC wakeup irq.

Set binding operation in time-display-container init function.

Unbinding it in destructor function.

But my unbinding operation does not work.When RTC wakeup irq is calling,it

trigger and show the last screen(which has time-display-container) I had leave.

How can I unbind the callback?

setAction and ReleaseAction

 

bind callback 

unbind callback

[Zbobo.1]

I would like to make a triggle way like this.