程序包 ohos.media.common.sessioncore

类 AVPlaybackState.Builder

java.lang.Object

ohos.media.common.sessioncore.AVPlaybackState.Builder

封闭类:

AVPlaybackState

public static final class AVPlaybackState.Builder
extends Object

A static inner class of AVPlaybackState to construct instances.

从以下版本开始:

3

构造器概要

构造器

构造器	说明
Builder()	Creates an empty Builder instance.
Builder(AVPlaybackState from)	Creates a Builder instance from a specified AVPlaybackState instance.

方法概要

限定符和类型	方法	说明
AVPlaybackState.Builder	addAVPlaybackCustomAction(String action, String name, int icon)	Adds a custom action.
AVPlaybackState.Builder	addAVPlaybackCustomAction(AVPlaybackState.AVPlaybackCustomAction customAction)	Adds a custom action.
AVPlaybackState	build()	Creates an AVPlaybackState instance.
AVPlaybackState.Builder	setActiveQueueElementId(long id)	Sets the ID of the active media item in the playback queue.
AVPlaybackState.Builder	setAVPlaybackActions(long actions)	Sets the actions supported by this AVSession instance.
AVPlaybackState.Builder	setAVPlaybackErrorMessage(CharSequence error)	Sets the message displayed when an error occurs during playback.
AVPlaybackState.Builder	setAVPlaybackState(int state, long position, float speed)	Sets the playback state, including the position and speed.
AVPlaybackState.Builder	setAVPlaybackState(int state, long position, float speed, long updateTime)	Sets the playback state, including the position, speed, and position update time.
AVPlaybackState.Builder	setCurrentBufferedPosition(long bufferedPosition)	Sets the buffer's position.
AVPlaybackState.Builder	setOptions(PacMap options)	Sets any custom option in this playback state.

从类继承的方法 java.lang.Object

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

构造器详细资料

Builder

public Builder()

Creates an empty Builder instance.

从以下版本开始:

3

Builder

public Builder(AVPlaybackState from)

Creates a Builder instance from a specified AVPlaybackState instance.

参数:

from - Indicates the AVPlaybackState instance used to create the Builder instance.

从以下版本开始:

3

方法详细资料

setAVPlaybackState

public AVPlaybackState.Builder setAVPlaybackState(int state,
                                                  long position,
                                                  float speed,
                                                  long updateTime)

Sets the playback state, including the position, speed, and position update time.

If the position is unknown, use AVPlaybackState.PLAYBACK_POSITION_ERROR; otherwise, specify the position update time.

参数:

state - Indicates the state. Available states are as follows:

• AVPlaybackState.PLAYBACK_STATE_NONE
• AVPlaybackState.PLAYBACK_STATE_STOPPED
• AVPlaybackState.PLAYBACK_STATE_PAUSED
• AVPlaybackState.PLAYBACK_STATE_PLAYING
• AVPlaybackState.PLAYBACK_STATE_FAST_FORWARDING
• AVPlaybackState.PLAYBACK_STATE_REWINDING
• AVPlaybackState.PLAYBACK_STATE_BUFFERING
• AVPlaybackState.PLAYBACK_STATE_ERROR
• AVPlaybackState.PLAYBACK_STATE_CONNECTING
• AVPlaybackState.PLAYBACK_STATE_SKIPPING_TO_PREVIOUS
• AVPlaybackState.PLAYBACK_STATE_SKIPPING_TO_NEXT
• AVPlaybackState.PLAYBACK_STATE_SKIPPING_TO_QUEUE_ITEM

position - Indicates the current playback position (milliseconds).

speed - Indicates the current playback speed.

updateTime - Indicates the position update time.

返回:

Returns this Builder instance.

从以下版本开始:

3

setAVPlaybackState

public AVPlaybackState.Builder setAVPlaybackState(int state,
                                                  long position,
                                                  float speed)

Sets the playback state, including the position and speed.

参数:

state - Indicates the state. Available states are as follows:

• AVPlaybackState.PLAYBACK_STATE_NONE
• AVPlaybackState.PLAYBACK_STATE_STOPPED
• AVPlaybackState.PLAYBACK_STATE_PAUSED
• AVPlaybackState.PLAYBACK_STATE_PLAYING
• AVPlaybackState.PLAYBACK_STATE_FAST_FORWARDING
• AVPlaybackState.PLAYBACK_STATE_REWINDING
• AVPlaybackState.PLAYBACK_STATE_BUFFERING
• AVPlaybackState.PLAYBACK_STATE_ERROR
• AVPlaybackState.PLAYBACK_STATE_CONNECTING
• AVPlaybackState.PLAYBACK_STATE_SKIPPING_TO_PREVIOUS
• AVPlaybackState.PLAYBACK_STATE_SKIPPING_TO_NEXT
• AVPlaybackState.PLAYBACK_STATE_SKIPPING_TO_QUEUE_ITEM

position - Indicates the current playback position (milliseconds).

speed - Indicates the current playback speed.

返回:

Returns this Builder instance.

从以下版本开始:

3

setAVPlaybackActions

public AVPlaybackState.Builder setAVPlaybackActions(long actions)

Sets the actions supported by this AVSession instance. Available actions are as follows:

• AVPlaybackState.PLAYBACK_ACTION_STOP
• AVPlaybackState.PLAYBACK_ACTION_PAUSE
• AVPlaybackState.PLAYBACK_ACTION_PLAY
• AVPlaybackState.PLAYBACK_ACTION_REWIND
• AVPlaybackState.PLAYBACK_ACTION_SKIP_TO_PREVIOUS
• AVPlaybackState.PLAYBACK_ACTION_SKIP_TO_NEXT
• AVPlaybackState.PLAYBACK_ACTION_FAST_FORWARD
• AVPlaybackState.PLAYBACK_ACTION_SET_RATING
• AVPlaybackState.PLAYBACK_ACTION_SEEK_TO
• AVPlaybackState.PLAYBACK_ACTION_PLAY_PAUSE
• AVPlaybackState.PLAYBACK_ACTION_PLAY_FROM_MEDIA_ID
• AVPlaybackState.PLAYBACK_ACTION_PLAY_FROM_SEARCH
• AVPlaybackState.PLAYBACK_ACTION_SKIP_TO_QUEUE_ITEM
• AVPlaybackState.PLAYBACK_ACTION_PLAY_FROM_URI
• AVPlaybackState.PLAYBACK_ACTION_PREPARE
• AVPlaybackState.PLAYBACK_ACTION_PREPARE_FROM_MEDIA_ID
• AVPlaybackState.PLAYBACK_ACTION_PREPARE_FROM_SEARCH
• AVPlaybackState.PLAYBACK_ACTION_PREPARE_FROM_URI

参数:

actions - Indicates the actions supported.

返回:

Returns this Builder instance.

从以下版本开始:

3

addAVPlaybackCustomAction

public AVPlaybackState.Builder addAVPlaybackCustomAction(String action,
                                                         String name,
                                                         int icon)

Adds a custom action. You can specify the action ID, display name, and icon ID.

参数:

action - Indicates the ID of the action.

name - Indicates the display name of the action.

icon - Indicates the ID of the icon to be displayed for the action.

返回:

Returns this Builder instance.

从以下版本开始:

3

addAVPlaybackCustomAction

public AVPlaybackState.Builder addAVPlaybackCustomAction(AVPlaybackState.AVPlaybackCustomAction customAction)

Adds a custom action.

参数:

customAction - Indicates the custom action to add.

返回:

Returns this Builder instance.

从以下版本开始:

3

setCurrentBufferedPosition

public AVPlaybackState.Builder setCurrentBufferedPosition(long bufferedPosition)

Sets the buffer's position.

参数:

bufferedPosition - Indicates the buffer's position (milliseconds).

返回:

Returns this Builder instance.

从以下版本开始:

3

setActiveQueueElementId

public AVPlaybackState.Builder setActiveQueueElementId(long id)

Sets the ID of the active media item in the playback queue.

参数:

id - Indicates the ID of the active media item.

返回:

Returns this Builder instance.

从以下版本开始:

3

setAVPlaybackErrorMessage

public AVPlaybackState.Builder setAVPlaybackErrorMessage(CharSequence error)

Sets the message displayed when an error occurs during playback. This method must be used when the state is AVPlaybackState.PLAYBACK_STATE_ERROR.

参数:

error - Indicates the error message.

返回:

Returns this Builder instance.

从以下版本开始:

3

setOptions

public AVPlaybackState.Builder setOptions(PacMap options)

Sets any custom option in this playback state.

参数:

options - Indicates the custom option to set.

返回:

Returns this Builder instance.

从以下版本开始:

3

build

public AVPlaybackState build()

Creates an AVPlaybackState instance.

返回:

Returns the AVPlaybackState instance.

从以下版本开始:

3