com.aliyun.thumbnail

类 ThumbnailHelper

java.lang.Object

com.aliyun.thumbnail.ThumbnailHelper

public class ThumbnailHelper
extends java.lang.Object

Thumbnail image tool. Follow these steps to use the tool: 1. Create a thumbnail image. 2. Set callbacks: setOnPrepareListener(OnPrepareListener) and setOnThumbnailGetListener(OnThumbnailGetListener). 3. Prepare. 4. After the preparation is complete, call requestBitmapAtPosition(long) to retrieve the thumbnail image. 5. Call ThumbnailHelper.OnThumbnailGetListener to return the thumbnail image retrieval result.

嵌套类概要

嵌套类

限定符和类型	类和说明
static interface	ThumbnailHelper.OnPrepareListener Prepare thumbnail image information.
static interface	ThumbnailHelper.OnThumbnailGetListener Thumbnail image retrieval callback.

构造器概要

构造器

构造器和说明
ThumbnailHelper(java.lang.String url) Create a thumbnail image.

方法概要

限定符和类型	方法和说明
static void	loadClass()
void	prepare() Prepare thumbnail image data.
void	requestBitmapAtPosition(long positionMs) Get the position of the thumbnail image.
void	setOnPrepareListener(ThumbnailHelper.OnPrepareListener l) Set a preparation callback.
void	setOnThumbnailGetListener(ThumbnailHelper.OnThumbnailGetListener l) Set a thumbnail image retrieval callback.

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

ThumbnailHelper

public ThumbnailHelper(java.lang.String url)

Create a thumbnail image.

参数:

url - The URL of the VTT file of the thumbnail image.

方法详细资料

loadClass

public static void loadClass()

setOnPrepareListener

public void setOnPrepareListener(ThumbnailHelper.OnPrepareListener l)

Set a preparation callback.

参数:

l - Preparation notification. See ThumbnailHelper.OnPrepareListener.

setOnThumbnailGetListener

public void setOnThumbnailGetListener(ThumbnailHelper.OnThumbnailGetListener l)

Set a thumbnail image retrieval callback.

参数:

l - Thumbnail image retrieval notification.

prepare

public void prepare()

Prepare thumbnail image data.

requestBitmapAtPosition

public void requestBitmapAtPosition(long positionMs)

Get the position of the thumbnail image. Call ThumbnailHelper.OnThumbnailGetListener to return the retrieval result.

参数:

positionMs - The position of the thumbnail image. Unit: milliseconds.