最近项目做完了，有闲暇时间，一直想做一个类似微信中微信发说说，既能实现拍照，选图库，多图案上传的案例，目前好多App都有类似微信朋友圈的功能，能过发表说说等附带图片上传。下面的就是实现该功能的过程：大家还没有看过这篇文章，在看今天的就很容易，接在本项目中用到了一个library：photopicker，封装了图片的选择功能，是否选相机，还有选中图片后可以查看图片的功能。 

package com.lidong.photopickersample;import android.content.Intent;import android.os.Bundle;import android.support.v7.app.AppCompatActivity;import android.util.Log;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.AdapterView;import android.widget.BaseAdapter;import android.widget.Button;import android.widget.EditText;import android.widget.GridView;import android.widget.ImageView;import com.bumptech.glide.Glide;import com.lidong.photopicker.ImageCaptureManager;import com.lidong.photopicker.PhotoPickerActivity;import com.lidong.photopicker.PhotoPreviewActivity;import com.lidong.photopicker.SelectModel;import com.lidong.photopicker.intent.PhotoPickerIntent;import com.lidong.photopicker.intent.PhotoPreviewIntent;import org.json.JSONArray;import java.util.ArrayList;/** * @ * @author lidong * @date 2016-02-29 */public class MainActivity extends AppCompatActivity {    private static final int REQUEST_CAMERA_CODE = 10;    private static final int REQUEST_PREVIEW_CODE = 20;    private ArrayList
       
         imagePaths = new ArrayList<>();    private ImageCaptureManager captureManager; // 相机拍照处理类    private GridView gridView;    private GridAdapter gridAdapter;    private Button mButton;    private String depp;    private EditText textView;    private String TAG =MainActivity.class.getSimpleName();    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        gridView = (GridView) findViewById(R.id.gridView);        mButton = (Button) findViewById(R.id.button);        textView= (EditText)findViewById(R.id.et_context);        int cols = getResources().getDisplayMetrics().widthPixels / getResources().getDisplayMetrics().densityDpi;        cols = cols < 3 ? 3 : cols;        gridView.setNumColumns(cols);        // preview        gridView.setOnItemClickListener(new AdapterView.OnItemClickListener() {            @Override            public void onItemClick(AdapterView
         parent, View view, int position, long id) {                String imgs = (String) parent.getItemAtPosition(position);                if ("000000".equals(imgs) ){                    PhotoPickerIntent intent = new PhotoPickerIntent(MainActivity.this);                    intent.setSelectModel(SelectModel.MULTI);                    intent.setShowCarema(true); // 是否显示拍照                    intent.setMaxTotal(6); // 最多选择照片数量，默认为6                    intent.setSelectedPaths(imagePaths); // 已选中的照片地址， 用于回显选中状态                    startActivityForResult(intent, REQUEST_CAMERA_CODE);                }else{                        PhotoPreviewIntent intent = new PhotoPreviewIntent(MainActivity.this);                        intent.setCurrentItem(position);                        intent.setPhotoPaths(imagePaths);                        startActivityForResult(intent, REQUEST_PREVIEW_CODE);                }            }        });        imagePaths.add("000000");        gridAdapter = new GridAdapter(imagePaths);        gridView.setAdapter(gridAdapter);        mButton.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                depp =textView.getText().toString().trim()!=null?textView.getText().toString().trim():"woowoeo";                new Thread(){                    @Override                    public void run() {                        super.run();                        FileUploadManager.uploadMany(imagePaths, depp);//                        FileUploadManager.upload(imagePaths,depp);                    }                }.start();            }        });    }    @Override    protected void onResume() {        super.onResume();    }    @Override    protected void onActivityResult(int requestCode, int resultCode, Intent data) {        super.onActivityResult(requestCode, resultCode, data);        if(resultCode == RESULT_OK) {            switch (requestCode) {                // 选择照片                case REQUEST_CAMERA_CODE:                    ArrayList
        
          list = data.getStringArrayListExtra(PhotoPickerActivity.EXTRA_RESULT);                    Log.d(TAG, "list: " + "list = [" + list.size());                    loadAdpater(list);                    break;                // 预览                case REQUEST_PREVIEW_CODE:                    ArrayList
         
           ListExtra = data.getStringArrayListExtra(PhotoPreviewActivity.EXTRA_RESULT);                    Log.d(TAG, "ListExtra: " + "ListExtra = [" + ListExtra.size());                    loadAdpater(ListExtra);                    break;            }        }    }    private void loadAdpater(ArrayList
          
            paths){        if (imagePaths!=null&& imagePaths.size()>0){            imagePaths.clear();        }        if (paths.contains("000000")){            paths.remove("000000");        }        paths.add("000000");        imagePaths.addAll(paths);        gridAdapter  = new GridAdapter(imagePaths);        gridView.setAdapter(gridAdapter);        try{            JSONArray obj = new JSONArray(imagePaths);            Log.e("--", obj.toString());        }catch (Exception e){            e.printStackTrace();        }    }    private class GridAdapter extends BaseAdapter{        private ArrayList
           
             listUrls;        private LayoutInflater inflater;        public GridAdapter(ArrayList
            
              listUrls) { this.listUrls = listUrls; if(listUrls.size() == 7){ listUrls.remove(listUrls.size()-1); } inflater = LayoutInflater.from(MainActivity.this); } public int getCount(){ return listUrls.size(); } @Override public String getItem(int position) { return listUrls.get(position); } @Override public long getItemId(int position) { return position; } @Override public View getView(int position, View convertView, ViewGroup parent) { ViewHolder holder = null; if (convertView == null) { holder = new ViewHolder(); convertView = inflater.inflate(R.layout.item_image, parent,false); holder.image = (ImageView) convertView.findViewById(R.id.imageView); convertView.setTag(holder); } else { holder = (ViewHolder)convertView.getTag(); } final String path=listUrls.get(position); if (path.equals("000000")){ holder.image.setImageResource(R.mipmap.ic_launcher); }else { Glide.with(MainActivity.this) .load(path) .placeholder(R.mipmap.default_error) .error(R.mipmap.default_error) .centerCrop() .crossFade() .into(holder.image); } return convertView; } class ViewHolder { ImageView image; } }}
            
           
          
         
        
       

@RequestMapping("/upload"   )      public String addUser(@RequestParam("file") CommonsMultipartFile[] files,    		HttpServletRequest request){                    for(int i = 0;i
        
         " + files[i].getOriginalFilename());                        if(!files[i].isEmpty()){                  int pre = (int) System.currentTimeMillis();                  try {                      //拿到输出流，同时重命名上传的文件                      FileOutputStream os = new FileOutputStream("f:/img"+"/" + new Date().getTime()+".jpg");                      //拿到上传文件的输入流                      FileInputStream in = (FileInputStream) files[i].getInputStream();                                            //以写字节的方式写文件                      int b = 0;                      while((b=in.read()) != -1){                          os.write(b);                      }                      os.flush();                      os.close();                      in.close();                      int finaltime = (int) System.currentTimeMillis();                      System.out.println(finaltime - pre);                                        } catch (Exception e) {                      e.printStackTrace();                      System.out.println("上传出错");                  }          }          }          return "/success";      }  
        

@Controller public class UploadFile extends ActionSupport { /** *  */private static final long serialVersionUID = 1L;private File[] file;//文件数组private String description;//说说内容public File[] getFile() {    return file;}public void setFile(File[] file) {    this.file = file;}public String getDescription() {    return description;}public void setDescription(String description) {    this.description = description;}@Action("/upload")public void upload()  {    System.out.println("上传的文件="+Arrays.toString(file));    System.out.println("说说内容="+description);}}