René's URL Explorer Experiment

{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"NS 8.2.0+ iOS Base64 images disappearing after scrolling ListView/RadListView","articleBody":"### Issue Description\n\nWhen upgrading @nativescript/core from 8.1.5 to latest 8.2.1 (or 8.2.0), I notice that images inside ListView/RadListView are disappearing after scrolling when using base64 ImageSources on iOS. They appear again when removing the items from ObservableArray and add them again.\r\n\r\n```\r\n\u003cListView items=\"{{ items }}\"\u003e\r\n            \u003cListView.itemTemplate\u003e\r\n                \u003cGridLayout columns=\"auto,20,*\u003e\r\n                    \u003cImage col=\"0\" src=\"{{ imageSrc }}\" className=\"image-list\"/\u003e\r\n                    \u003cLabel col=\"2\" text=\"{{ title }}\" verticalAlignment=\"center\"/\u003e\r\n                \u003c/GridLayout\u003e\r\n            \u003c/ListView.itemTemplate\u003e\r\n\u003c/ListView\u003e\r\n```\r\n\r\n```\r\nexport const vm = fromObject({\r\n  items: new ObservableArray([\r\n      {title: \"Item 1\", imageSrc: ImageSource.fromBase64Sync(\"/9j/4AAQSkZJRgABAQAASABIAAD/4QCMRXhpZg...\")},\r\n      {title: \"Item 2\", imageSrc: ImageSource.fromBase64Sync(\"/9j/4AAQSkZJRgABAQEBLAEsAAD/7QJoUGhvdG...\")},\r\n      {title: \"Item 3\", imageSrc: null},\r\n      //...\r\n  ])\r\n});\r\n```\r\n\r\nThe output:\r\nhttps://user-images.githubusercontent.com/6443021/157667068-8effbe14-f17d-4360-ac4b-f8d1f2157712.mov\r\n\r\n\r\nWith nativescript/core 8.1.5, it was working as expected:\r\n\r\nhttps://user-images.githubusercontent.com/6443021/157667249-c57d8be4-3b16-4e3f-9238-6efe862a557c.mov\r\n\r\n\r\n\r\n\n\n### Reproduction\n\nSample app to reproduce:\r\n[ns-8-2-ios-image.zip](https://github.com/NativeScript/NativeScript/files/8223567/ns-8-2-ios-image.zip)\r\n\r\n- run the app on ios\r\n- tap the first button to navigate to the page with RadListView and base64 images\r\n- scroll the list down and up again -\u003e images disappearing\n\n### Relevant log output (if applicable)\n\n```shell\n-\n```\n\n\n### Environment\n\n```yaml\r\nOS: macOS 12.2.1\r\nCPU: (12) x64 Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz\r\nShell: /bin/zsh\r\nnode: 14.18.1\r\nnpm: 6.14.15\r\nnativescript: 8.1.5\r\n\r\n# android\r\njava: 11.0.11\r\nndk: Not Found\r\napis: Not Found\r\nbuild_tools: Not Found\r\nsystem_images: Not Found\r\n\r\n# ios\r\nxcode: 13.2.1/13C100\r\ncocoapods: 1.11.2\r\npython: 2.7.18\r\npython3: 3.9.7\r\nruby: 2.7.4\r\nplatforms: \r\n  - DriverKit 21.2\r\n  - iOS 15.2\r\n  - macOS 12.1\r\n  - tvOS 15.2\r\n  - watchOS 8.3\r\n```\r\n\r\n### Dependencies\r\n\r\n```json\r\n\"dependencies\": {\r\n  \"@nativescript/core\": \"^8.2.1\",\r\n  \"nativescript-ui-listview\": \"^10.0.2\"\r\n},\r\n\"devDependencies\": {\r\n  \"@nativescript/android\": \"^8.2.2\",\r\n  \"@nativescript/ios\": \"^8.2.1\",\r\n  \"@nativescript/types\": \"~8.2.0\",\r\n  \"@nativescript/webpack\": \"~5.0.6\",\r\n  \"typescript\": \"~4.5.5\"\r\n}\r\n```\r\n\n\n### Please accept these terms\n\n- [X] I have searched the [existing issues](https://github.com/NativeScript/NativeScript/issues) as well as [StackOverflow](https://stackoverflow.com/questions/tagged/nativescript) and this has not been posted before\n- [X] This is a bug report\n- [X] I agree to follow this project's [Code of Conduct](https://github.com/NativeScript/NativeScript/blob/master/tools/notes/CONTRIBUTING.md#coc)","author":{"url":"https://github.com/felixkrautschuk","@type":"Person","name":"felixkrautschuk"},"datePublished":"2022-03-10T13:07:19.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":6},"url":"https://github.com/9820/NativeScript/issues/9820"}