Android 如何更改Outputstream类中的缓冲区计数

我正在使用下面的类来扩展outputstream，以了解上传的进度

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

import org.apache.http.entity.InputStreamEntity;

public class CountingInputStreamEntity extends InputStreamEntity {

    private UploadListener listener;
    private long length;

    public CountingInputStreamEntity(InputStream instream, long length) {
        super(instream, length);
        this.length = length;
    }

    public void setUploadListener(UploadListener listener) {
        this.listener = listener;
    }

    @Override
    public void writeTo(OutputStream outstream) throws IOException {
        super.writeTo(new CountingOutputStream(outstream));
    }

    class CountingOutputStream extends OutputStream {
        private long counter = 0l;
        private OutputStream outputStream;

        public CountingOutputStream(OutputStream outputStream) {
            this.outputStream = outputStream;
        }

        @Override
        public void write(int oneByte) throws IOException {
            this.outputStream.write(oneByte);
            counter++;
            if (listener != null) {
                int percent = (int) ((counter * 100)/ length);
                listener.onChange(percent);
            }
        }
    }

    public interface UploadListener {
        public void onChange(int percent);
    }

}

调用类：

final HttpResponse resp;
final HttpClient httpClient = new DefaultHttpClient();
final HttpPost post = new HttpPost(UPLOAD_URL);
ParcelFileDescriptor fileDescriptor = context.getContentResolver().openFileDescriptor(uri, "r");
InputStream in = context.getContentResolver().openInputStream(uri);
CountingInputStreamEntity entity = new CountingInputStreamEntity(in, fileDescriptor.getStatSize());
entity.setListener(this);
post.setEntity(entity);
resp = httpClient.execute(post);

默认情况下，write方法中的len变量返回2048字节。有没有办法将len变量更改为自定义值。我希望len变量为64kb如何实现这一点？任何人都可以帮助我解决这个问题

---

我可以增加写入服务器的字节数。

默认情况下，write方法中的len变量返回2048个字节

这是什么意思？谁在设置此变量？通常，

write（byte[]bytes）

方法的实现类似于

write（bytes，0，bytes.length）

。我们是否可以将write（byte[]bytes）字节数组大小更改为特定值，因为我需要减少上载时间。如果是2048字节，则上载大文件所需的时间很长。否。给定的字节数组中已经有一个大小和一些数据。我不知道你会如何改变这一点，除非发明数据来填充额外的长度。谁调用这个方法并传递字节[]？