Get a pointer of the view in a container (container member of that view)

Hi @Professional​,

You could pass "this" from your view to the container.

Best regards,

Martin

Hello,

thank for your answer but concretly i don't know how to do this : where is called the constructor of the container ?

i have the class :

class TimeView : public TimeViewBase

in the base class i have the container   Cont_menu_bar cont_menu_bar1; declared.

But the creation of that is done in touchGFX generated code.

cont_menu_bar1 can fire a callback placed in the container, but i would like to call a TimeView callback (getting this may make it work..)

regards

If it's a custom container you should have a concrete implementation of this container. You can add a method there to set the pointer for the container and call that during setupScreen() of your view:

e.g.

::setupScreen()

{

myContainer.setViewPtr(this);

}

yes i have tried to have a function in my container.hpp and cpp :

#include <mvp/View.hpp>

void setViewPointer(View * this);

but i can't compile that as View is not defined...

have you a complete example ?

thanks

regards

Here's an example using callbacks that i just made. A project that defines a screen with two custom containers (Both CustomContainer1). CustomContainer1 has a background and a ClickListener Box. When the Box is pressed, the CustomContainer catches this in an internal handler and then calls a Callback (set by the view) to communicate it's identity back. Based on this identity (The first or the second custom container) it will show/hide the custom containers.

I've written some comments in the code - Let me know if you need more information.

The benefit of using this approach with callbacks is that it's generic and your containers do not need to store a pointer to a specific view type (Even if it's a base view). You could have the handler and callback for the views that use this custom container in a baseview.