Question about best practice when building multiple children

[facebook]

Question about best practice when building multiple children

[natansh]

The best way to add a dynamic number of children is to build up a std::vector of CKStackLayoutComponentChild using methods like push_back.

std::vector<CKStackLayoutComponentChild> children = {};
for (ModelType *model in models) {
  // Create component from model, let's say the name of the component you create is childComponent.
  children.push_back(childComponent);
}

And then you can pass in the children directly to CKStackLayoutComponent.

If you already know the exact number beforehand, I would suggest you just create the children inline with CKStackLayoutComponent.

[ocrickard]

If your children are truly dynamic then you can do push_back, but as Natansh hints at: it's rare that's the case.

Check out http://componentkit.org/docs/avoid-push-back.html

[adamjernst]

One last tip: FB::map is a great helper. See ComponentUtilities.h.

[foulkesjohn]

Thanks, this is exactly what I was after.