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Class MapContext

MapContext (API Reference)

java.lang.Object
- com.here.NativeBase
- - com.here.sdk.mapview.MapContext

```
public final class MapContext
extends NativeBase
```
MapContext is the rendering engine and the context in which virtual geographic maps get rendered.
It runs the render loop or offers the means for the user to run a custom one.
Data sources, assets and virtual maps can be attached to the context. A virtual map can only render data from sources attached to the same context.
The graphics backend to be used by the engine can be choosen by the user or a platform suitable one can be automatically selected internally. Only one graphics backend can be active and once selected it cannot be changed.

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description
`static class`	`MapContext.FreeResourceSeverity`	The severity of a free resource request.
`static class`	`MapContext.ResourceType`	Types of system resources used by `MapContext` or any of the entities attached to it, like `HereMap`.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`freeResource(MapContext.ResourceType type, MapContext.FreeResourceSeverity severity)`	Frees a system resource held by the `MapContext` and all entities attached to it, like `HereMap`.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Method Detail
  - freeResource
```
public void freeResource(@NonNull
                         MapContext.ResourceType type,
                         @NonNull
                         MapContext.FreeResourceSeverity severity)
```
    Frees a system resource held by the MapContext and all entities attached to it, like HereMap. This function is intended for use when a system resource availability becomes low. For example, some memory can be freed when the application transitions to the background state.
    
    Parameters:
    
    type -
    Type of resource to be freed.
    
    severity -
    Severity of the request.