{"action":"opened","issue":{"url":"https://api.github.com/repos/flutter/flutter/issues/7218","repository_url":"https://api.github.com/repos/flutter/flutter","labels_url":"https://api.github.com/repos/flutter/flutter/issues/7218/labels{/name}","comments_url":"https://api.github.com/repos/flutter/flutter/issues/7218/comments","events_url":"https://api.github.com/repos/flutter/flutter/issues/7218/events","html_url":"https://github.com/flutter/flutter/issues/7218","id":194656850,"number":7218,"title":"Split AnimationController into two","user":{"login":"Hixie","id":551196,"avatar_url":"https://avatars.githubusercontent.com/u/551196?v=3","gravatar_id":"","url":"https://api.github.com/users/Hixie","html_url":"https://github.com/Hixie","followers_url":"https://api.github.com/users/Hixie/followers","following_url":"https://api.github.com/users/Hixie/following{/other_user}","gists_url":"https://api.github.com/users/Hixie/gists{/gist_id}","starred_url":"https://api.github.com/users/Hixie/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Hixie/subscriptions","organizations_url":"https://api.github.com/users/Hixie/orgs","repos_url":"https://api.github.com/users/Hixie/repos","events_url":"https://api.github.com/users/Hixie/events{/privacy}","received_events_url":"https://api.github.com/users/Hixie/received_events","type":"User","site_admin":false},"labels":[{"id":284437560,"url":"https://api.github.com/repos/flutter/flutter/labels/affects:%20framework","name":"affects: framework","color":"207de5","default":false},{"id":295704306,"url":"https://api.github.com/repos/flutter/flutter/labels/API%20stability","name":"API stability","color":"207de5","default":false},{"id":283479307,"url":"https://api.github.com/repos/flutter/flutter/labels/%E2%9A%A0%20code%20health","name":"⚠ code health","color":"eb6420","default":false}],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/flutter/flutter/milestones/20","html_url":"https://github.com/flutter/flutter/milestone/20","labels_url":"https://api.github.com/repos/flutter/flutter/milestones/20/labels","id":2005336,"number":20,"title":"2: Make Early Adopters happy","description":"Support enough for us to feel confident inviting developers to use Flutter for their applications.","creator":{"login":"Hixie","id":551196,"avatar_url":"https://avatars.githubusercontent.com/u/551196?v=3","gravatar_id":"","url":"https://api.github.com/users/Hixie","html_url":"https://github.com/Hixie","followers_url":"https://api.github.com/users/Hixie/followers","following_url":"https://api.github.com/users/Hixie/following{/other_user}","gists_url":"https://api.github.com/users/Hixie/gists{/gist_id}","starred_url":"https://api.github.com/users/Hixie/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/Hixie/subscriptions","organizations_url":"https://api.github.com/users/Hixie/orgs","repos_url":"https://api.github.com/users/Hixie/repos","events_url":"https://api.github.com/users/Hixie/events{/privacy}","received_events_url":"https://api.github.com/users/Hixie/received_events","type":"User","site_admin":false},"open_issues":142,"closed_issues":36,"state":"open","created_at":"2016-09-14T22:22:01Z","updated_at":"2016-12-09T17:50:29Z","due_on":"2017-03-31T00:00:00Z","closed_at":null},"comments":0,"created_at":"2016-12-09T17:50:29Z","updated_at":"2016-12-09T17:50:29Z","closed_at":null,"body":"I think we should consider splitting AnimationController into two, one for straight-forward linear progress on a tick for a duration, and one for driving a Simulation. They can both be `Animation<double>s`. This would simplify the API, which right now is a hodge-podge of unrelated features to be able to handle both modes in one class.\r\n\r\nIn practice nothing but scrolling uses the Simulation-driven controller right now as far as I can tell."}}
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