com.google.android.exoplayer2.source

Class ShuffleOrder.DefaultShuffleOrder

java.lang.Object

com.google.android.exoplayer2.source.ShuffleOrder.DefaultShuffleOrder

All Implemented Interfaces:

ShuffleOrder

Enclosing interface:

ShuffleOrder

public static class ShuffleOrder.DefaultShuffleOrder
extends java.lang.Object
implements ShuffleOrder

The default ShuffleOrder implementation for random shuffle order.

Nested Class Summary

Nested classes/interfaces inherited from interface com.google.android.exoplayer2.source.ShuffleOrder

ShuffleOrder.DefaultShuffleOrder, ShuffleOrder.UnshuffledShuffleOrder

Constructor Summary

Constructors

Constructor and Description
DefaultShuffleOrder(int length) Creates an instance with a specified length.
DefaultShuffleOrder(int length, long randomSeed) Creates an instance with a specified length and the specified random seed.

Method Summary

Modifier and Type	Method and Description
ShuffleOrder	cloneAndClear() Returns a copy of the shuffle order with all elements removed.
ShuffleOrder	cloneAndInsert(int insertionIndex, int insertionCount) Returns a copy of the shuffle order with newly inserted elements.
ShuffleOrder	cloneAndRemove(int removalIndex) Returns a copy of the shuffle order with one element removed.
int	getFirstIndex() Returns the first index in the shuffle order, or C.INDEX_UNSET if the shuffle order is empty.
int	getLastIndex() Returns the last index in the shuffle order, or C.INDEX_UNSET if the shuffle order is empty.
int	getLength() Returns length of shuffle order.
int	getNextIndex(int index) Returns the next index in the shuffle order.
int	getPreviousIndex(int index) Returns the previous index in the shuffle order.

Methods inherited from class java.lang.Object

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

Constructor Detail

DefaultShuffleOrder

public DefaultShuffleOrder(int length)

Creates an instance with a specified length.

Parameters:

length - The length of the shuffle order.

DefaultShuffleOrder

public DefaultShuffleOrder(int length,
                           long randomSeed)

Creates an instance with a specified length and the specified random seed. Shuffle orders of the same length initialized with the same random seed are guaranteed to be equal.

Parameters:

length - The length of the shuffle order.

randomSeed - A random seed.

Method Detail

getLength

public int getLength()

Description copied from interface: ShuffleOrder

Returns length of shuffle order.

Specified by:

getLength in interface ShuffleOrder

getNextIndex

public int getNextIndex(int index)

Description copied from interface: ShuffleOrder

Returns the next index in the shuffle order.

Specified by:

getNextIndex in interface ShuffleOrder

Parameters:

index - An index.

Returns:

The index after index, or C.INDEX_UNSET if index is the last element.

getPreviousIndex

public int getPreviousIndex(int index)

Description copied from interface: ShuffleOrder

Returns the previous index in the shuffle order.

Specified by:

getPreviousIndex in interface ShuffleOrder

Parameters:

index - An index.

Returns:

The index before index, or C.INDEX_UNSET if index is the first element.

getLastIndex

public int getLastIndex()

Description copied from interface: ShuffleOrder

Returns the last index in the shuffle order, or C.INDEX_UNSET if the shuffle order is empty.

Specified by:

getLastIndex in interface ShuffleOrder

getFirstIndex

public int getFirstIndex()

Description copied from interface: ShuffleOrder

Returns the first index in the shuffle order, or C.INDEX_UNSET if the shuffle order is empty.

Specified by:

getFirstIndex in interface ShuffleOrder

cloneAndInsert

public ShuffleOrder cloneAndInsert(int insertionIndex,
                                   int insertionCount)

Description copied from interface: ShuffleOrder

Returns a copy of the shuffle order with newly inserted elements.

Specified by:

cloneAndInsert in interface ShuffleOrder

Parameters:

insertionIndex - The index in the unshuffled order at which elements are inserted.

insertionCount - The number of elements inserted at insertionIndex.

Returns:

A copy of this ShuffleOrder with newly inserted elements.

cloneAndRemove

public ShuffleOrder cloneAndRemove(int removalIndex)

Description copied from interface: ShuffleOrder

Returns a copy of the shuffle order with one element removed.

Specified by:

cloneAndRemove in interface ShuffleOrder

Parameters:

removalIndex - The index of the element in the unshuffled order which is to be removed.

Returns:

A copy of this ShuffleOrder without the removed element.

cloneAndClear

public ShuffleOrder cloneAndClear()

Description copied from interface: ShuffleOrder

Returns a copy of the shuffle order with all elements removed.

Specified by:

cloneAndClear in interface ShuffleOrder