AsyncListUtil.DataCallback
abstract class AsyncListUtil.DataCallback<T>
The callback that provides data access for AsyncListUtil.
All methods are called on the background thread.
Summary
Public constructors |
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Public functions |
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abstract Unit |
@WorkerThreadFill the given tile. |
Int |
Returns tile cache size limit (in tiles). |
Unit |
@WorkerThreadRecycle the objects created in |
abstract Int |
Refresh the data set and return the new data item count. |
Public constructors
Public functions
fillData
@WorkerThread
abstract fun fillData(data: Array<T!>, startPosition: Int, itemCount: Int): Unit
Fill the given tile.
The provided tile might be a recycled tile, in which case it will already have objects. It is suggested to re-use these objects if possible in your use case.
getMaxCachedTiles
@WorkerThread
fun getMaxCachedTiles(): Int
Returns tile cache size limit (in tiles).
The actual number of cached tiles will be the maximum of this value and the number of tiles that is required to cover the range returned by extendRangeInto.
For example, if this method returns 10, and the most recent call to extendRangeInto returned {100, 179}, and the tile size is 5, then the maximum number of cached tiles will be 16.
However, if the tile size is 20, then the maximum number of cached tiles will be 10.
The default implementation returns 10.
| Returns | |
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Int |
Maximum cache size. |
recycleData
@WorkerThread
fun recycleData(data: Array<T!>, itemCount: Int): Unit
Recycle the objects created in fillData if necessary.
refreshData
@WorkerThread
abstract fun refreshData(): Int
Refresh the data set and return the new data item count.
If the data is being accessed through android.database.Cursor this is where the new cursor should be created.
| Returns | |
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Int |
Data item count. |