AnimationDrawable

An object used to create frame-by-frame animations, defined by a series of Drawable objects, which can be used as a View object's background.

一个常常创建被一系列Drawable对象定义的帧动画对象， 它能被用来作为一个视图对象的背景。

CookieSyncManager

The CookieSyncManager is used to synchronize the browser cookie store between RAM and permanent storage.

CookieSyncManager常常同步浏览器储存在随机存储器和永久存储器之间的cookie。

FutureTask<V>

A cancellable asynchronous computation.

一个可删除的异步计算。

HandlerThread

Handy class for starting a new thread that has a looper.

开始一个有looper的新线程的便利类。

RefQueueWorker

A worker thread for processing queued references.

一个处理队列引用的worker线程。

RenderScript.RSErrorHandler

Runtime error base class.

运行时错误基类。

RenderScript.RSMessageHandler

Base class application should derive from for handling RS messages coming from their scripts.

RunnableFuture<V>

A Future that is Runnable.

RunnableScheduledFuture<V>

A ScheduledFuture that is Runnable.

Thread

A Thread is a concurrent unit of execution.

线程是一个同时执行单元。

TimerTask

The TimerTask class represents a task to run at a specified time.

TimerTask类代表一个运行在指定时间的任务。