mapkit

来源： https://stackoverflow.com/questions/62726157/swiftui-mapkit-annotation-selection-and-navigation

来源： https://stackoverflow.com/questions/33102748/nil-is-incompatible-with-return-type-mkoverlayrenderer

来源： https://stackoverflow.com/questions/47688976/why-do-i-get-an-mkerrordomain-error-when-doing-a-local-search

来源： https://stackoverflow.com/questions/47688976/why-do-i-get-an-mkerrordomain-error-when-doing-a-local-search

来源： https://stackoverflow.com/questions/47688976/why-do-i-get-an-mkerrordomain-error-when-doing-a-local-search

来源： https://stackoverflow.com/questions/63471091/tracking-user-location-mkpolyline-getting-drawn-from-utc-coordinates-0-0-to

来源： https://stackoverflow.com/questions/48874436/ios-how-to-know-if-i-need-a-routing-app-coverage-file

来源： https://stackoverflow.com/questions/48874436/ios-how-to-know-if-i-need-a-routing-app-coverage-file

来源： https://stackoverflow.com/questions/48874436/ios-how-to-know-if-i-need-a-routing-app-coverage-file

问题 I'm use SQLite3 to query for tile blobs I downloaded from openmaptiles. I'm able to get the blob from my DB and convert it into a Data however when I pass the Data to result of loadTile(at path:result:) I don't see the tile rendering. I'm wondering if maybe I need to convert it to some type of image data for it to render. However I'm fairly certain that .mbtiles uses blob data from png or jpeg image types which should be fine. Why might tiles not render on screen if I have appropriate Data