751aff2ddd
When annotations are removed concurrently with being updated because of a map redraw, it is possible that mbgl will still consider an annotation to exist depending on what part of the map lifecycle the call update annotations happens. However, the annotation context by tag map in MGLMapView (on the main thread) will always be up to date. This adds a guard that uses that map to avoid considering annotations that have actually been removed as visible. Another issue was that adding the same annotation object twice has always been allowed and has worked, visually. However, a recent refactor to make the reuse queue work correctly is not tolerant of the a single view representing two annotation instances that are the same. The effect is that a new UIView will be generated for each (clone) annotation that is added and only the last view will move with the map. The other views become detached and float around in the view as the map is panned. This commit adds a guard to make adding an annotation instance a no-op if it has already been added before.
Mapbox GL Native
A library for embedding interactive, customizable vector maps into native applications on multiple platforms. It takes stylesheets that conform to the Mapbox Style Specification, applies them to vector tiles that conform to the Mapbox Vector Tile Specification, and renders them using OpenGL. Mapbox GL JS is the WebGL-based counterpart, designed for use on the Web.
The Mapbox GL ecosystem
This repository hosts the cross-platform Mapbox GL Native library, plus convenient SDKs for several platforms. The cross-platform library comes with a GLFW-based demo application for Ubuntu Linux and macOS. The SDKs target the usual languages on their respective platforms:
| SDK | Languages | Build status |
|---|---|---|
| Mapbox GL Native | C++14 |   |
| Mapbox Android SDK | Java |  |
| Mapbox iOS SDK | Objective-C or Swift |  |
| Mapbox macOS SDK | Objective-C, Swift, or AppleScript |  |
| node-mapbox-gl-native | Node.js |  |
| Mapbox Qt SDK | C++03 |  |
Additional Mapbox GL Native–based libraries for hybrid applications are developed outside of this repository:
| Toolkit | Android | iOS | Developer |
|---|---|---|---|
| React Native (npm) | ✅ | ✅ | |
| Apache Cordova (npm) | ✅ | ✅ | Telerik |
| NativeScript (npm) | ✅ | ✅ | Telerik |
| Xamarin | ✅ | ✅ | Xamarin |
If your platform or hybrid application framework isn’t listed here, consider embedding Mapbox GL JS using the standard Web capabilities on your platform.