android实现带进度条的文件上传

MainActivity.java

package com.example.upload;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.ProgressBar;

public class MainActivity extends Activity implements OnClickListener{
	public static String url = "http://xxx.xxx.xx";
	public static String path = "/sdcard/wrar380sc.exe";
	public static ProgressBar bar;
	Button upload;
	
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		bar = (ProgressBar) findViewById(R.id.ProgressBar01);
		upload = (Button) findViewById(R.id.button1);
		upload.setOnClickListener(this);
	}

	@Override
	public boolean onCreateOptionsMenu(Menu menu) {
		// Inflate the menu; this adds items to the action bar if it is present.
		getMenuInflater().inflate(R.menu.activity_main, menu);
		return true;
	}

	@Override
	public void onClick(View v) {
		HttpMultipartPost task = new HttpMultipartPost(this);
		task.execute();
	}

}

package com.example.upload;

import java.io.File;

import org.apache.http.HttpResponse;
import org.apache.http.client.HttpClient;
import org.apache.http.client.methods.HttpPost;
import org.apache.http.entity.mime.content.FileBody;
import org.apache.http.impl.client.DefaultHttpClient;
import org.apache.http.protocol.BasicHttpContext;
import org.apache.http.protocol.HttpContext;
import org.apache.http.util.EntityUtils;

import android.app.ProgressDialog;
import android.content.Context;
import android.os.AsyncTask;

import com.example.upload.CustomMultiPartEntity.ProgressListener;

public class HttpMultipartPost extends AsyncTask<HttpResponse, Integer, String> {
	ProgressDialog pd;
	long totalSize;
	Context context;

	public HttpMultipartPost(Context context) {
		this.context = context;
	}

	@Override
	protected void onPreExecute() {
		pd = new ProgressDialog(context);
		pd.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
		pd.setMessage("Uploading Picture...");
		pd.setCancelable(false);
		pd.show();
	}

	@Override
	protected String doInBackground(HttpResponse... arg0) {
		HttpClient httpClient = new DefaultHttpClient();
		HttpContext httpContext = new BasicHttpContext();
		HttpPost httpPost = new HttpPost(MainActivity.url);

		try {
			CustomMultiPartEntity multipartContent = new CustomMultiPartEntity(new ProgressListener() {
				@Override
				public void transferred(long num) {
					publishProgress((int) ((num / (float) totalSize) * 100));
				}
			});

			// We use FileBody to transfer an image
			multipartContent.addPart("file", new FileBody(new File(MainActivity.path)));
			totalSize = multipartContent.getContentLength();

			// Send it
			httpPost.setEntity(multipartContent);
			HttpResponse response = httpClient.execute(httpPost, httpContext);
			String serverResponse = EntityUtils.toString(response.getEntity());

			// ResponseFactory rp = new ResponseFactory(serverResponse);
			// return (TypeImage) rp.getData();

			return serverResponse;
		}

		catch (Exception e) {
			System.out.println(e);
		}
		return null;
	}

	@Override
	protected void onProgressUpdate(Integer... progress) {
		pd.setProgress((int) (progress[0]));
	}

	@Override
	protected void onPostExecute(String ui) {
		pd.dismiss();
	}
}

自定义的CustomMultiPartEntity.java

http://blog.csdn.net/jdsjlzx/article/details/8895035

完整代码：