com.mikepenz.fastadapter.utils

Class AdapterUtil

java.lang.Object

com.mikepenz.fastadapter.utils.AdapterUtil

public class AdapterUtil
extends java.lang.Object

Created by mikepenz on 31.12.15.

Constructor Summary

Constructors

Constructor and Description
AdapterUtil()

Method Summary

Modifier and Type	Method and Description
static java.util.SortedSet<java.lang.Integer>	adjustPosition(java.util.Set<java.lang.Integer> positions, int startPosition, int endPosition, int adjustBy) internal method to handle the selections if items are added / removed
static android.util.SparseIntArray	adjustPosition(android.util.SparseIntArray positions, int startPosition, int endPosition, int adjustBy) internal method to handle the selections if items are added / removed
static void	handleStates(FastAdapter fastAdapter, int startPosition, int endPosition) internal method which correctly set the selected state and expandable state on the newly added items

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AdapterUtil

public AdapterUtil()

Method Detail

handleStates

public static void handleStates(FastAdapter fastAdapter,
                                int startPosition,
                                int endPosition)

internal method which correctly set the selected state and expandable state on the newly added items

Parameters:

fastAdapter - the fastAdapter which manages everything

startPosition - the position of the first item to handle

endPosition - the position of the last item to handle

adjustPosition

public static java.util.SortedSet<java.lang.Integer> adjustPosition(java.util.Set<java.lang.Integer> positions,
                                                                    int startPosition,
                                                                    int endPosition,
                                                                    int adjustBy)

internal method to handle the selections if items are added / removed

Parameters:

positions - the positions map which should be adjusted

startPosition - the global index of the first element modified

endPosition - the global index up to which the modification changed the indices (should be MAX_INT if we check til the end)

adjustBy - the value by which the data was shifted

Returns:

the adjusted set

adjustPosition

public static android.util.SparseIntArray adjustPosition(android.util.SparseIntArray positions,
                                                         int startPosition,
                                                         int endPosition,
                                                         int adjustBy)

internal method to handle the selections if items are added / removed

Parameters:

positions - the positions map which should be adjusted

startPosition - the global index of the first element modified

endPosition - the global index up to which the modification changed the indices (should be MAX_INT if we check til the end)

adjustBy - the value by which the data was shifted

Returns:

the adjusted map