主要思路是调用系统文件管理器或者其他媒体采集资源来获取要上传的文件，然后将文件的上传进度实时展示到进度条中。

主Activity

import java.io.File;
import java.io.FileNotFoundException;
import java.io.IOException;

import android.app.Activity;
import android.content.Intent;
import android.content.res.Configuration;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.MediaStore;
import android.provider.MediaStore.Audio.Media;
import android.view.LayoutInflater;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.LinearLayout;

import com.guotop.base.activity.BaseActivity;
import com.guotop.base.util.MyFile;
import com.guotop.elearn.activity.R;
import com.guotop.elearn.activity.app.yunpan.item.YunPanUploadFileItem;

/**
 *
 *
 * @author: 李杨
 * @time: 2014-4-15下午4:29:35
 */
public class YunPanUploadFileActivity extends BaseActivity implements OnClickListener{

    String userId, parentId;
    private final static int FILECHOOSER_RESULTCODE = 0;
//    private String openFileType=\"\";
    private String mVideoFilePath,mPhotoFilePath,mVoiceFilePath;
    private Button chooseBtn,uploadBtn;
    private LinearLayout conterLayout;
    private String actionURL;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState, this);
        setTitle(\"云盘上传文件\");
        setContentView(R.layout.activity_yunpan_uploadfile);

        userId = getIntent().getStringExtra(\"userId\");
        parentId = getIntent().getStringExtra(\"parentId\");
        actionURL = getIntent().getStringExtra(\"actionURL\");

        chooseBtn = (Button)findViewById(R.id.chooseBtn);
        uploadBtn = (Button)findViewById(R.id.uploadBtn);
        conterLayout = (LinearLayout)findViewById(R.id.conterLayout);

        chooseBtn.setOnClickListener(this);
        uploadBtn.setOnClickListener(this);

    }

    @Override
    public void onClick(View v) {
        if(v.getId()==R.id.chooseBtn){
//            //选择文件       
            startActivityForResult(createDefaultOpenableIntent(), YunPanUploadFileActivity.FILECHOOSER_RESULTCODE);

//            Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
//            startActivityForResult(intent, YunPanUploadFileActivity.FILECHOOSER_RESULTCODE);
           

//              Intent intent = new Intent(Media.RECORD_SOUND_ACTION);
//            ((Activity) context).startActivityForResult(intent, YunPanUploadFileActivity.FILECHOOSER_RESULTCODE);
        }else if(v.getId()==R.id.uploadBtn){
            //上传文件

        }
    }

   
    /**
     * 创建上传文件
     */
    public void createUploadFileItem(String filePath){
//        View view = LayoutInflater.from(context).inflate(R.layout.activity_yunpan_uploadfile_item, null);

        new YunPanUploadFileItem(context, conterLayout, filePath,actionURL);

    }

   
    @Override
    public void onConfigurationChanged(Configuration newConfig) {
        // TODO Auto-generated method stub
        super.onConfigurationChanged(newConfig);
    }

    /**选择文件*/
    private Intent createDefaultOpenableIntent() {
        Intent i = new Intent(Intent.ACTION_GET_CONTENT);
        i.addCategory(Intent.CATEGORY_OPENABLE);
        i.putExtra(Intent.EXTRA_TITLE, \"选择文件\");
        i.setType(\"*/*\");

        Intent chooser = createChooserIntent(createCameraIntent(), createCamcorderIntent(), createSoundRecorderIntent());
        chooser.putExtra(Intent.EXTRA_INTENT, i);
        return chooser;
    }

    private Intent createChooserIntent(Intent... intents) {
        Intent chooser = new Intent(Intent.ACTION_CHOOSER);
        chooser.putExtra(Intent.EXTRA_INITIAL_INTENTS, intents);
        chooser.putExtra(Intent.EXTRA_TITLE, \"选择文件\");
        return chooser;
    }

    private Intent createCameraIntent() {
        Intent cameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        File externalDataDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        File cameraDataDir = new File(externalDataDir.getAbsolutePath() + File.separator + \"e-photos\");
        cameraDataDir.mkdirs();
        mPhotoFilePath = cameraDataDir.getAbsolutePath() + File.separator + System.currentTimeMillis() + \".jpg\";
        cameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(mPhotoFilePath)));
        return cameraIntent;
    }
   

    private Intent createCamcorderIntent() {
        Intent intent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
        File externalDataDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        File cameraDataDir = new File(externalDataDir.getAbsolutePath() + File.separator + \"e-videos\");
        cameraDataDir.mkdirs();
        mVideoFilePath = cameraDataDir.getAbsolutePath() + File.separator + System.currentTimeMillis() + \".3gp\";
        intent.putExtra(MediaStore.EXTRA_OUTPUT, Uri.fromFile(new File(mVideoFilePath)));
        intent.putExtra(MediaStore.EXTRA_VIDEO_QUALITY, 1); // set the video
        return intent;
    }

    private Intent createSoundRecorderIntent() {
        Intent intent = new Intent(MediaStore.Audio.Media.RECORD_SOUND_ACTION);
        File externalDataDir = Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DCIM);
        File cameraDataDir = new File(externalDataDir.getAbsolutePath() + File.separator + \"e-voices\");
        cameraDataDir.mkdirs();
        mVoiceFilePath = cameraDataDir.getAbsolutePath() + File.separator + System.currentTimeMillis() + \".amr\";
        return intent;
    }

    protected void onActivityResult(int requestCode, int resultCode, Intent data) {
        if (requestCode == FILECHOOSER_RESULTCODE) {
            Uri result= data == null || resultCode != RESULT_OK ? null :data.getData();
            if (result == null && data == null && resultCode == Activity.RESULT_OK) {
                File mMediaFile = null;;
                if(new File(mVideoFilePath).exists()){
                    mMediaFile = new File(mVideoFilePath);
                }else if(new File(mPhotoFilePath).exists()){
                    mMediaFile = new File(mPhotoFilePath);
                }else if(new File(mVoiceFilePath).exists()){
                    mMediaFile = new File(mVoiceFilePath);
                }
                if (mMediaFile!=null&&mMediaFile.exists()) {
                    result = Uri.fromFile(mMediaFile);
                    sendBroadcast(new Intent(Intent.ACTION_MEDIA_SCANNER_SCAN_FILE, result));
                }
//                result = Uri.fromFile(new File(mCameraFilePath));
            }
            if(result!=null){
                if(!new File(result.getPath()).canRead()){
                    try {
                        MyFile.copyFile(new File(mVoiceFilePath),getContentResolver().openInputStream(result));
                        createUploadFileItem(mVoiceFilePath);
                    } catch (FileNotFoundException e) {
                        e.printStackTrace();
                    }
                }else {
                    createUploadFileItem(result.getPath());
                }
            }

            System.out.println(result);
        }
    }
   

}