uploadHeadIcon

实现了上传头像的功能

//接口
@POST("small/user/verify/v1/modifyHeadPic")
    Observable<Data> uploadPic(@Header("userId") String userId,
                               @Header("sessionId") String sessionId,
                               @Body MultipartBody part);

//重要代码

 MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
        File file = new File(String.valueOf(args[2]));
        builder.addFormDataPart("image", file.getName(),
                RequestBody.create(MediaType.parse("multipart/octet-stream"),
                        file));

        return iRequest.uploadPic((String) args[0], (String) args[1], builder.build());

//打开相册
Intent intent = new Intent(Intent.ACTION_PICK);
        intent.setType("image/*");
        startActivityForResult(intent, PICK_CODE);

//打开相机
Intent openCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
        startActivityForResult(openCameraIntent, PHOTO_CODE);

//获取bitmap
private Uri getBitmap(Bitmap bitmap, String temp) {
        File file = new File(Environment.getExternalStorageDirectory() + "/" + temp);
        if (!file.exists()) {
            file.mkdir();
        }
        File img = new File(file.getAbsolutePath() + "/temp_image.png");
        try {
            FileOutputStream fileOutputStream = new FileOutputStream(img);
            bitmap.compress(Bitmap.CompressFormat.PNG, 85, fileOutputStream);
            fileOutputStream.flush();
            fileOutputStream.close();
            return Uri.fromFile(img);
        } catch (FileNotFoundException e) {
            e.printStackTrace();
            return null;
        } catch (IOException e) {
            e.printStackTrace();
            return null;
        }
    }

//Bitmap转换成file
    public File getFile(Bitmap bmp) {
        String defaultPath = getApplicationContext().getFilesDir()
                .getAbsolutePath() + "/defaultGoodInfo";
        File file = new File(defaultPath);
        if (!file.exists()) {
            file.mkdirs();
        }
        String defaultImgPath = defaultPath + "/messageImg.jpg";
        file = new File(defaultImgPath);
        try {
            file.createNewFile();
            FileOutputStream fOut = new FileOutputStream(file);
            bmp.compress(Bitmap.CompressFormat.PNG, 20, fOut);
            fOut.flush();
            fOut.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
        return file;
    }

//相机返回数据
 if (data != null) {
    //获取相机图片获取
    Bitmap bitmap = data.getParcelableExtra("data");
    File file = getFile(bitmap);
    mMainPresenter.reqeust(userid, sessionid, file);
    Glide.with(this).load(bitmap).into(mIv);
}

//相册返回数据
   Uri uri = data.getData();
   if (uri != null) {
       try {
             InputStream inputStream = getContentResolver().openInputStream(uri);
             Bitmap bitmap = BitmapFactory.decodeStream(inputStream);
             File file = getFile(bitmap);
             mMainPresenter.reqeust(userid, sessionid, file);
            Glide.with(this).load(bitmap).into(mIv);
           } catch (FileNotFoundException e) {
                 e.printStackTrace();
      }
}