nicoma...@googlemail.com
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to MIT APP INVENTOR 2
You must embedd the variables with the block "initalize global 'name'". Plug in the "to" socket, use a "make a list" block. There, list the variables.
Then drag a "when Screen1.Initalize", a "set Spinner1.Elements" and a "get 'global name'" block in the Viewer. Pair the set block with the when block, and the get block with the "to" socket of the set block.