This is not where you want this method.  You want to add the method definition to the `SFSDKAppDelegate` protocol in `SFApplication.h`.  This will require that the method be implemented in both the native and hybrid app delegate classes.  You could do this in one of two ways:

- Create a utils class (e.g. `SFSDKUIUtils`, similar to `SFSDKWebUtils` et al), create a common method there, and then call it from each app delegate's respective implementation of `createSnapshotView`.
- Just duplicate the implementation of `createSnapshotView` in each app delegate for the time being.

For what it's worth, in 2.0 we'll likely be creating a parent app delegate class that both native and hybrid app delegates can inherit from, and such a method will go there when that happens.