topic Re: Is API possible to auto cache tiledmapservice ? in ArcGIS Runtime SDK for iOS Questions https://community.esri.com/t5/arcgis-runtime-sdk-for-ios-questions/is-api-possible-to-auto-cache-tiledmapservice/m-p/32277#M333 <HTML><HEAD></HEAD><BODY><P><SPAN style="line-height: 1.5;">You could create a custom tiled layer which contains an instance of the runtime's layers, and cache tiles as they're returned by the contained instance, before you pass them back to the AGSMapView. <A href="https://github.com/nixta/coreimage-tiled-layer-ios">This repository</A>‌ does a similar thing, but it applies a Core Image Filter to each tile before passing it on rather than caching it.</SPAN></P><P></P><P>However, you would need to carefully consider how to handle cache cleanup and constraint. What do you eject from the cache when memory constraints start getting hit: Least used? Oldest in cache? Furthest from current extent? Furthest from current zoom? Do you eject groups of tiles at once, or individual tiles - you probably want to consider contiguous areas. Doubtless the best solution would be some combination of all of those.</P><P></P><P><STRONG>Note</STRONG>: Even if you came up with a good caching strategy, to do this against one of the Esri provided basemap layers would, unfortunately, currently be against the licensing terms.</P></BODY></HTML> Sat, 17 Jan 2015 18:51:46 GMT Nicholas-Furness 2015-01-17T18:51:46Z Is API possible to auto cache tiledmapservice ? https://community.esri.com/t5/arcgis-runtime-sdk-for-ios-questions/is-api-possible-to-auto-cache-tiledmapservice/m-p/32276#M332 <HTML><HEAD></HEAD><BODY><P>Hi.</P><P>I would like to cache of tiledmapservice but I don't want to export tiled or use local tile.</P><P>Can it auto cache when I pan or zoom map?</P></BODY></HTML> Thu, 15 Jan 2015 03:54:35 GMT https://community.esri.com/t5/arcgis-runtime-sdk-for-ios-questions/is-api-possible-to-auto-cache-tiledmapservice/m-p/32276#M332 ItthisakPhueaksri 2015-01-15T03:54:35Z Re: Is API possible to auto cache tiledmapservice ? https://community.esri.com/t5/arcgis-runtime-sdk-for-ios-questions/is-api-possible-to-auto-cache-tiledmapservice/m-p/32277#M333 <HTML><HEAD></HEAD><BODY><P><SPAN style="line-height: 1.5;">You could create a custom tiled layer which contains an instance of the runtime's layers, and cache tiles as they're returned by the contained instance, before you pass them back to the AGSMapView. <A href="https://github.com/nixta/coreimage-tiled-layer-ios">This repository</A>‌ does a similar thing, but it applies a Core Image Filter to each tile before passing it on rather than caching it.</SPAN></P><P></P><P>However, you would need to carefully consider how to handle cache cleanup and constraint. What do you eject from the cache when memory constraints start getting hit: Least used? Oldest in cache? Furthest from current extent? Furthest from current zoom? Do you eject groups of tiles at once, or individual tiles - you probably want to consider contiguous areas. Doubtless the best solution would be some combination of all of those.</P><P></P><P><STRONG>Note</STRONG>: Even if you came up with a good caching strategy, to do this against one of the Esri provided basemap layers would, unfortunately, currently be against the licensing terms.</P></BODY></HTML> Sat, 17 Jan 2015 18:51:46 GMT https://community.esri.com/t5/arcgis-runtime-sdk-for-ios-questions/is-api-possible-to-auto-cache-tiledmapservice/m-p/32277#M333 Nicholas-Furness 2015-01-17T18:51:46Z