程序包 ohos.global.resource

类 RawFileDescriptor

java.lang.Object

ohos.global.resource.BaseFileDescriptor

ohos.global.resource.RawFileDescriptor

所有已实现的接口:

Closeable, AutoCloseable

public abstract class RawFileDescriptor
extends BaseFileDescriptor

Provides the file descriptor of a raw file from RawFileEntry.

You can use the file descriptor to read data, obtain the data start position, and obtain the length of the raw file. This class inherits from BaseFileDescriptor. The RawFileDescriptor instance can be obtained only by using the RawFileEntry.openRawFileDescriptor() method.

从以下版本开始:

3

另请参阅:

RawFileEntry, BaseFileDescriptor

构造器概要

构造器

构造器	说明
RawFileDescriptor()

方法概要

限定符和类型	方法	说明
abstract FileDescriptor	getFileDescriptor()	Obtains the file descriptor of the raw file.
abstract long	getFileSize()	Obtains the size of the raw file.
abstract long	getStartPosition()	Obtains the start position of data in the raw file.

从接口继承的方法 java.io.Closeable

close

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

RawFileDescriptor

public RawFileDescriptor()

方法详细资料

getFileDescriptor

public abstract FileDescriptor getFileDescriptor()

Obtains the file descriptor of the raw file.

You can use the file descriptor to read data in the raw file.

指定者:

getFileDescriptor 在类中 BaseFileDescriptor

返回:

Returns the file descriptor.

从以下版本开始:

3

getFileSize

public abstract long getFileSize()

Obtains the size of the raw file.

指定者:

getFileSize 在类中 BaseFileDescriptor

返回:

Returns the raw file size, in bytes.

从以下版本开始:

3

getStartPosition

public abstract long getStartPosition()

Obtains the start position of data in the raw file.

指定者:

getStartPosition 在类中 BaseFileDescriptor

返回:

Returns the start position.

从以下版本开始:

3