1、android.database.Cursor is a interface ,this interface provides random read-write access to the result set returned by a database query .
Cursor implementations
are not required to be synchronized ;
2、android.context.ContextValues ,the class is used to stroe a set of values that ContextResolver(内容解析器) can process
3、parcelable is a interface ,interface for classes whose instances can be written to and restored from a Parcel .Classes implementing
the Parcelable interface must alseo have a static field called creator ,which is an object implementing the Parcelable.Creator interface;
4、android.util.Log API for sending log output .realistically ,there is also another buffer allocation and copy ,and even more pressure on the
gc.That means that if your log message is filtered out,you might be doing significant work and incurring significant overhead .(做重大的工作和承担重大的开销)
5、HttpInterface for an HTTP client.
研究了一下fanfou的android的部分代码,感觉自己和开发者差距巨大,很多方法都不知道,api更是不熟悉。需要查询api才能够了解,需要真正的项目历练自己。让项目来的更猛烈些吧!