All Implemented Interfaces:

org.osmdroid.tileprovider.IMapTileProviderCallback , org.osmdroid.util.MapTileContainer
```
public class MapTileProviderArray
extends MapTileProviderBase implements MapTileContainer
                    
```
This top-level tile provider allows a consumer to provide an array of modular asynchronous tile providers to be used to obtain map tiles. When a tile is requested, the MapTileProviderArray first checks the MapTileCache (synchronously) and returns the tile if available. If not, then the MapTileProviderArray returns null and sends the tile request through the asynchronous tile request chain. Each asynchronous tile provider returns success/failure to the MapTileProviderArray. If successful, the MapTileProviderArray passes the result to the base class. If failed, then the next asynchronous tile provider is called in the chain. If there are no more asynchronous tile providers in the chain, then the failure result is passed to the base class. The MapTileProviderArray provides a mechanism so that only one unique tile-request can be in the map tile request chain at a time.

Constructor Summary

Constructors
Constructor	Description
`MapTileProviderArray(ITileSource pTileSource, IRegisterReceiver aRegisterReceiver, Array<MapTileModuleProviderBase> pTileProviderArray)`	Creates an MapTileProviderArray with the specified tile providers.

Method Summary

Modifier and Type	Method	Description
`void`	`detach()`	classes that extend MapTileProviderBase must call this method to prevent memory leaks.Updated 5.
`boolean`	`contains(long pTileIndex)`
`Drawable`	`getMapTile(long pMapTileIndex)`	Attempts to get a Drawable that represents a MapTileIndex.
`void`	`mapTileRequestCompleted(MapTileRequestState aState, Drawable aDrawable)`	Called by implementation class methods indicating that they have completed the request asbest it can.
`void`	`mapTileRequestFailed(MapTileRequestState aState)`	Called by implementation class methods indicating that they have failed to retrieve therequested map tile.
`void`	`mapTileRequestFailedExceedsMaxQueueSize(MapTileRequestState aState)`	Called by implementation class methods indicating that they have failed to retrieve therequested map tile, because the max queue size has been reached
`void`	`mapTileRequestExpiredTile(MapTileRequestState aState, Drawable aDrawable)`	Called by implementation class methods indicating that they have produced an expired resultthat can be used but better results may be delivered later.
`IFilesystemCache`	`getTileWriter()`
`long`	`getQueueSize()`
`boolean`	`getProviderExists(MapTileModuleProviderBase provider)`
`int`	`getMinimumZoomLevel()`	Gets the minimum zoom level this tile provider can provide
`int`	`getMaximumZoomLevel()`	Gets the maximum zoom level this tile provider can provide
`void`	`setTileSource(ITileSource aTileSource)`	Sets the tile source for this tile provider.

Methods inherited from class org.osmdroid.tileprovider.MapTileProviderBase
clearTileCache, createTileCache, ensureCapacity, expireInMemoryCache, getTileCache, getTileRequestCompleteHandlers, getTileSource, mapTileRequestCompleted, mapTileRequestExpiredTile, mapTileRequestFailed, mapTileRequestFailedExceedsMaxQueueSize, rescaleCache, setApproximationBackgroundColor, setTileLoadFailureImage, setTileRequestCompleteHandler, setTileSource, setUseDataConnection, useDataConnection
Methods inherited from class org.osmdroid.tileprovider.IMapTileProviderCallback
mapTileRequestCompleted, mapTileRequestExpiredTile, mapTileRequestFailed, mapTileRequestFailedExceedsMaxQueueSize
Methods inherited from class org.osmdroid.util.MapTileContainer
contains
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - MapTileProviderArray
```
MapTileProviderArray(ITileSource pTileSource, IRegisterReceiver aRegisterReceiver, Array<MapTileModuleProviderBase> pTileProviderArray)
```
    Creates an MapTileProviderArray with the specified tile providers.
    
    Parameters:
    
    aRegisterReceiver - a IRegisterReceiver
    
    pTileProviderArray - an array of MapTileModuleProviderBase
- Method Detail
  - detach
```
 void detach()
```
    classes that extend MapTileProviderBase must call this method to prevent memory leaks.Updated 5.2+
  - contains
```
 boolean contains(long pTileIndex)
```
  - getMapTile
```
 Drawable getMapTile(long pMapTileIndex)
```
    Attempts to get a Drawable that represents a MapTileIndex. If the tile is not immediatelyavailable this will return null and attempt to get the tile from known tile sources forsubsequent future requests. Note that this may return a ReusableBitmapDrawable inwhich case you should follow proper handling procedures for using that Drawable or it mayreused while you are working with it.
  - mapTileRequestCompleted
```
 void mapTileRequestCompleted(MapTileRequestState aState, Drawable aDrawable)
```
    Called by implementation class methods indicating that they have completed the request asbest it can. The tile is added to the cache, and a MAPTILE_SUCCESS_ID message is sent.
  - mapTileRequestFailed
```
 void mapTileRequestFailed(MapTileRequestState aState)
```
    Called by implementation class methods indicating that they have failed to retrieve therequested map tile. a MAPTILE_FAIL_ID message is sent.
  - mapTileRequestFailedExceedsMaxQueueSize
```
 void mapTileRequestFailedExceedsMaxQueueSize(MapTileRequestState aState)
```
    Called by implementation class methods indicating that they have failed to retrieve therequested map tile, because the max queue size has been reached
  - mapTileRequestExpiredTile
```
 void mapTileRequestExpiredTile(MapTileRequestState aState, Drawable aDrawable)
```
    Called by implementation class methods indicating that they have produced an expired resultthat can be used but better results may be delivered later. The tile is added to the cache,and a MAPTILE_SUCCESS_ID message is sent.
  - getTileWriter
```
 IFilesystemCache getTileWriter()
```
  - getQueueSize
```
 long getQueueSize()
```
  - getProviderExists
```
 boolean getProviderExists(MapTileModuleProviderBase provider)
```
  - getMinimumZoomLevel
```
 int getMinimumZoomLevel()
```
    Gets the minimum zoom level this tile provider can provide
  - getMaximumZoomLevel
```
 int getMaximumZoomLevel()
```
    Gets the maximum zoom level this tile provider can provide
  - setTileSource
```
 void setTileSource(ITileSource aTileSource)
```
    Sets the tile source for this tile provider.

Class MapTileProviderArray

Constructor Summary

Method Summary

Methods inherited from class org.osmdroid.tileprovider.MapTileProviderBase

Methods inherited from class org.osmdroid.tileprovider.IMapTileProviderCallback

Methods inherited from class org.osmdroid.util.MapTileContainer

Methods inherited from class java.lang.Object

Constructor Detail

MapTileProviderArray

Method Detail

detach

contains

getMapTile

mapTileRequestCompleted

mapTileRequestFailed

mapTileRequestFailedExceedsMaxQueueSize

mapTileRequestExpiredTile

getTileWriter

getQueueSize

getProviderExists

getMinimumZoomLevel

getMaximumZoomLevel

setTileSource