Can be used as HttpPost data with upload percentage

CustomMultiPartEntity.java

/**
 * Created by Ashish on 09-Jun-16.
 */
 
 /**
 * Required Library httpmime-4.1-beta1.jar
 * 
 * Example of use
 * 
 * doInBackground(Params...){
    ....
    final CustomMultiPartEntity reqEntity = new CustomMultiPartEntity(HttpMultipartMode.BROWSER_COMPATIBLE, new CustomMultiPartEntity.ProgressListener() {
            @Override
            public void transferred(long num) {
                int percentage = (int) ((num * 100)/total);
                publishProgress(percentage);
            }
        });
 }
 */

import org.apache.http.entity.mime.HttpMultipartMode;
import org.apache.http.entity.mime.MultipartEntity;

import java.io.FilterOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.nio.charset.Charset;

public class CustomMultiPartEntity extends MultipartEntity {

    private final ProgressListener listener;

    public CustomMultiPartEntity(final ProgressListener listener) {
        super();
        this.listener = listener;
    }



    public CustomMultiPartEntity(final HttpMultipartMode mode, final ProgressListener listener) {
        super(mode);
        this.listener = listener;
    }

    public CustomMultiPartEntity(HttpMultipartMode mode, final String boundary,
                                 final Charset charset, final ProgressListener listener) {
        super(mode, boundary, charset);
        this.listener = listener;
    }

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




    public static interface ProgressListener {
        void transferred(long num);
    }




    public static class CountingOutputStream extends FilterOutputStream {

        private final ProgressListener listener;
        private long transferred;


        public CountingOutputStream(final OutputStream out, final ProgressListener listener) {
            super(out);
            this.listener = listener;
            this.transferred = 0;
        }

        public void write(byte[] b, int off, int len) throws IOException {
            out.write(b, off, len);
            this.transferred += len;
            this.listener.transferred(this.transferred);
        }

        public void write(int b) throws IOException {
            out.write(b);
            this.transferred++;
            this.listener.transferred(this.transferred);
        }
    }
}