程序包 ohos.aafwk.ability

接口 PipeFileWriter<T>

public interface PipeFileWriter<T>

Provides methods that can be called by background threads to write data into a pipe.

You must implement this interface first if you want to call {@link ohos.aafwk.ability.Ability#createPipeFile(Uri, String, PacMap, T, PipeFileWriter Ability#createPipeFile(Uri, String, PacMap, T, PipeFileWriter} to transmit pipe data.

从以下版本开始:

4

SystemCapability

SystemCapability.Aafwk#ABILITY

方法概要

限定符和类型	方法	说明
void	write(FileDescriptor output, Uri uri, String mimeType, PacMap pacMap, T args)	Called by a background thread to write data into a pipe identified by the specified FileDescriptor.

方法详细资料

write

void write(FileDescriptor output,
           Uri uri,
           String mimeType,
           PacMap pacMap,
           T args)

Called by a background thread to write data into a pipe identified by the specified FileDescriptor.

Note: The calling background thread may be blocked if data reading on the client is slow.

参数:

output - Indicates the FileDescriptor object into which the data is to be written. The system will close this object after it returns from this method.

uri - Indicates the source Uri object whose data will be written.

mimeType - Indicates the MIME type of the data to write.

pacMap - Indicates the PacMap object containing the additional parameters to be passed in this call. This parameter can be null.

args - Indicates the custom parameters that specify the data shared to the client. The type of this parameter is the same as the generic type in PipeFileWriter<T>.

从以下版本开始:

4