{"action":"opened","issue":{"url":"https://api.github.com/repos/facebook/react-native/issues/13038","repository_url":"https://api.github.com/repos/facebook/react-native","labels_url":"https://api.github.com/repos/facebook/react-native/issues/13038/labels{/name}","comments_url":"https://api.github.com/repos/facebook/react-native/issues/13038/comments","events_url":"https://api.github.com/repos/facebook/react-native/issues/13038/events","html_url":"https://github.com/facebook/react-native/issues/13038","id":215557036,"number":13038,"title":"ListView does not work properly inside a ScrollView","user":{"login":"RyanMitchellWilson","id":11371200,"avatar_url":"https://avatars1.githubusercontent.com/u/11371200?v=3","gravatar_id":"","url":"https://api.github.com/users/RyanMitchellWilson","html_url":"https://github.com/RyanMitchellWilson","followers_url":"https://api.github.com/users/RyanMitchellWilson/followers","following_url":"https://api.github.com/users/RyanMitchellWilson/following{/other_user}","gists_url":"https://api.github.com/users/RyanMitchellWilson/gists{/gist_id}","starred_url":"https://api.github.com/users/RyanMitchellWilson/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/RyanMitchellWilson/subscriptions","organizations_url":"https://api.github.com/users/RyanMitchellWilson/orgs","repos_url":"https://api.github.com/users/RyanMitchellWilson/repos","events_url":"https://api.github.com/users/RyanMitchellWilson/events{/privacy}","received_events_url":"https://api.github.com/users/RyanMitchellWilson/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":0,"created_at":"2017-03-20T21:13:16Z","updated_at":"2017-03-20T21:13:16Z","closed_at":null,"body":"I've got a ScrollView as one of my top level components where it needs to render a View at the top of the screen then a ListView beneath it, so that when I scroll it takes the top content with it. But whenever I try to nest my ListView inside of the ScrollView it causes everything in the ListView to be rendered no matter what props I give it. \r\n\r\nThis is causing my app to run very slow with large lists because it is rendering every element inside my ListView instead of selectively rendering what it should based on the props I send in.\r\n\r\nGave my ListView a list of 200 elements with a page size of 5 but still renders all 200 elements making it very slow."}}
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