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d7ba514546
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2 Commits

Author SHA1 Message Date
Adam Barth
d7ba514546 Fix global key error while using fitness app 
We were making local copies of the listener maps, but we were actually
iterating the underlying sets. Now we make local copies of the sets.

Fixes #803
 2015-08-25 14:45:18 -07:00
Adam Barth
16328cc875 Add GlobalKey.registerSyncListener 
This lets clients listen for when a widget with a given global key goes through
a sync operation. We'll need this for mimic to track its mimicable when it
moves around the tree.
 2015-08-24 12:55:55 -07:00