/**	 * path:存放图片目录路径	 */	private String path = Environment.getExternalStorageDirectory().getPath() + "/XXX/";	/**	 * saveCatalog:保存文件目录	 */	private File saveCatalog;	/**	 * saveFile:保存的文件	 */	private File saveFile;        public String createOrGetFilePath(String fileName, Context mContext) {		saveCatalog = new File(path);		if (!saveCatalog.exists()) {			saveCatalog.mkdirs();		}		saveFile = new File(saveCatalog, fileName);		try {			saveFile.createNewFile();		} catch (IOException e) {			Toast.makeText(mContext, "创建文件失败，请检查SD是否有足够空间", Toast.LENGTH_SHORT).show();			e.printStackTrace();		}		return saveFile.getAbsolutePath();	}

        <item >拍照</item>        <item >相册</item>    </string-array>
private String[] image;image = getResources().getStringArray(R.array.get_image_way);/**	 * TODO 通过拍照或者图册获得照片	 * 	 * @author {author wangxiaohong}	 */	private void selectImage() {		// TODO Auto-generated method stub		String state = Environment.getExternalStorageState();		if (!state.equals(Environment.MEDIA_MOUNTED)) {			Util.showToast(this, getResources().getString(R.string.check_sd)); //检查SD卡是否可用			return;		}		AlertDialog.Builder builder = new AlertDialog.Builder(this);		builder.setTitle(R.string.pick_image).setItems(image,				new DialogInterface.OnClickListener() {					public void onClick(DialogInterface dialog, int which) {						if (image[which].equals(getString(R.string.my_data_image_way_photo))) {							getImageByPhoto();						} else {							getImageByGallery();						}					}				});		builder.create().show();	}

	private void getImageByGallery() {	        Intent intent = new Intent(Intent.ACTION_PICK, MediaStore.Images.Media.EXTERNAL_CONTENT_URI);		intent.setType("image/*");		startActivityForResult(intent, IMAGE_RESULT);	}

public String getPath(String carId, String fileName, Context mContext) {		File saveCatalog = new File(Constant.CACHE, carId);		// saveCatalog = new File(path);		if (!saveCatalog.exists()) {			saveCatalog.mkdirs();		}		saveFile = new File(saveCatalog, fileName);		try {			saveFile.createNewFile();		} catch (IOException e) {			Toast.makeText(mContext, "创建文件失败，请检查SD是否有足够空间", Toast.LENGTH_SHORT).show();			e.printStackTrace();		}		return saveFile.getAbsolutePath();	}

private void getImageByPhoto() {
                public static final String CACHE = Environment.getExternalStorageDirectory().getAbsolutePath()+ "/pinchebang/";

		path = util.getPath(user.getCar().getCarId() + "", mPhotoName, PersonalInfoActivity.this);		imageUri = Uri.fromFile(new File(path));		Intent intent = new Intent("android.media.action.IMAGE_CAPTURE");		intent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);		startActivityForResult(intent, CAMERA_RESULT);	}

@Override	protected void onActivityResult(int requestCode, int resultCode, Intent data) {		// TODO Auto-generated method stub		super.onActivityResult(requestCode, resultCode, data);		if (resultCode != Activity.RESULT_OK) return;		Bitmap bitmap = null;		if (requestCode == CAMERA_RESULT) {			bitmap = util.getSmallBitmap(PersonalInfoActivity.this, path);			boolean flag = util.save(PersonalInfoActivity.this, path, bitmap);		} else if (requestCode == IMAGE_RESULT) {			Uri selectedImage = data.getData();			path = util.getImagePath(PersonalInfoActivity.this, selectedImage);			bitmap = util.getSmallBitmap(PersonalInfoActivity.this, path);			String pcbPathString = util.getPath(user.getCar().getCarId() + "", mPhotoName,					PersonalInfoActivity.this);			;			util.save(PersonalInfoActivity.this, pcbPathString, bitmap);			path = pcbPathString;		}		if (null != bitmap) {			mypicture.setImageBitmap(bitmap);			HttpUtil.uploadFile(PersonalInfoActivity.this, path, "userImg",					Constant.URL_VERIFY_DRIVER);			// MemoryCache memoryCache = new MemoryCache();			// memoryCache.put(url, bitmap);		}	}

上面对应的压缩方法

/**	 * TODO filePath:图片路径	 * 	 * @author {author wangxiaohong}	 */	public Bitmap getSmallBitmap(Context mContext, String filePath) {		DisplayMetrics dm;		dm = new DisplayMetrics();		((Activity) mContext).getWindowManager().getDefaultDisplay().getMetrics(dm);		final BitmapFactory.Options options = new BitmapFactory.Options();		options.inJustDecodeBounds = true;		BitmapFactory.decodeFile(filePath, options);		// Calculate inSampleSize		options.inSampleSize = calculateInSampleSize(options, dm.widthPixels, dm.heightPixels);		// Decode bitmap with inSampleSize set		options.inJustDecodeBounds = false;		return BitmapFactory.decodeFile(filePath, options);	}	public int calculateInSampleSize(BitmapFactory.Options options, int reqWidth, int reqHeight) {		// Raw height and width of image		final int height = options.outHeight;		final int width = options.outWidth;		int inSampleSize = 1;		if (height > reqHeight || width > reqWidth) {			// Calculate ratios of height and width to requested height and			// width			final int heightRatio = Math.round((float) height / (float) reqHeight);			final int widthRatio = Math.round((float) width / (float) reqWidth);			// Choose the smallest ratio as inSampleSize value, this will			// guarantee			// a final image with both dimensions larger than or equal to the			// requested height and width.			inSampleSize = heightRatio < widthRatio ? heightRatio : widthRatio;		}		return inSampleSize;	}	/**	 * TODO 保存并压缩图片 将bitmap 保存 到 path 路径的文件里	 * 	 * @author {author wangxiaohong}	 */	public boolean save(Context mContext, String path, Bitmap bitmap) {		DisplayMetrics dm;		dm = new DisplayMetrics();		((Activity) mContext).getWindowManager().getDefaultDisplay().getMetrics(dm);		if (path != null) {			try {				// FileCache fileCache = new FileCache(mContext);				// File f = fileCache.getFile(url);				File f = new File(path);				FileOutputStream fos = new FileOutputStream(f);				bitmap.compress(Bitmap.CompressFormat.JPEG, 70, fos);				saveMyBitmap(bitmap);				return true;			} catch (Exception e) {				return false;			}		} else {			return false;		}	}	private void saveMyBitmap(Bitmap bm) {		FileOutputStream fOut = null;		try {			fOut = new FileOutputStream(saveFile);		} catch (FileNotFoundException e) {			e.printStackTrace();		}		bm.compress(Bitmap.CompressFormat.JPEG, 70, fOut);		try {			fOut.flush();		} catch (IOException e) {			e.printStackTrace();		}		try {			fOut.close();		} catch (IOException e) {			e.printStackTrace();		}	}	public String getPath(String carId, String fileName, Context mContext) {		File saveCatalog = new File(Constant.CACHE, carId);		// saveCatalog = new File(path);		if (!saveCatalog.exists()) {			saveCatalog.mkdirs();		}		saveFile = new File(saveCatalog, fileName);		try {			saveFile.createNewFile();		} catch (IOException e) {			Toast.makeText(mContext, "创建文件失败，请检查SD是否有足够空间", Toast.LENGTH_SHORT).show();			e.printStackTrace();		}		return saveFile.getAbsolutePath();	}	/**	 * TODO 获得相册选择图片的图片路径	 * 	 * @author {author wangxiaohong}	 */	public String getImagePath(Context mContext, Uri contentUri) {		String[] proj = { MediaStore.Images.Media.DATA };		Cursor cursor = mContext.getContentResolver().query(contentUri, proj, null, null, null);		int column_index = cursor.getColumnIndexOrThrow(MediaStore.Images.Media.DATA);		cursor.moveToFirst();		String ImagePath = cursor.getString(column_index);		cursor.close();		return ImagePath;	}

public static void uploadFile(Context mContext, String path, String modelValue, String url) {		new PhotoUploadAsyncTask(mContext).execute(path, modelValue, url);	}class PhotoUploadAsyncTask extends AsyncTask<String, Integer, String> {	// private String url = "http://192.168.83.213/receive_file.php";	private Context context;	public PhotoUploadAsyncTask(Context context) {		this.context = context;	}	@Override	protected void onPreExecute() {	}	@SuppressWarnings("deprecation")	@Override	protected String doInBackground(String... params) {		// 保存需上传文件信息		MultipartEntityBuilder entitys = MultipartEntityBuilder.create();		entitys.setMode(HttpMultipartMode.BROWSER_COMPATIBLE);		entitys.setCharset(Charset.forName(HTTP.UTF_8));		File file = new File(params[0]);		entitys.addPart("image", new FileBody(file));		entitys.addTextBody("model", params[1]);		HttpEntity httpEntity = entitys.build();		return HttpUtil.uploadFileWithpost(params[2], context, httpEntity);	}	@Override	protected void onProgressUpdate(Integer... progress) {	}	@Override	protected void onPostExecute(String result) {		Toast.makeText(context, result, Toast.LENGTH_SHORT).show();	}}/**	 * 用于文件上传	 * 	 * @param url	 * @param mContext	 * @param entity	 * @return	 */	@SuppressWarnings("deprecation")	public static String uploadFileWithpost(String url, Context mContext, HttpEntity entity) {		Util.printLog("开始上传");		try {			setTimeout();			httpClient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION,					HttpVersion.HTTP_1_1);			// 设置连接超时时间			// httpClient.getParams().setParameter(CoreConnectionPNames.CONNECTION_TIMEOUT,			// 5000);			HttpPost upPost = new HttpPost(url);			upPost.setEntity(entity);			HttpResponse httpResponse = httpClient.execute(upPost, httpContext);			if (httpResponse.getStatusLine().getStatusCode() == HttpStatus.SC_OK) {				return mContext.getString(R.string.upload_success);			}		} catch (Exception e) {			Util.printLog("上传报错");			e.printStackTrace();		}		// finally {		// if (httpClient != null && httpClient.getConnectionManager() != null)		// {		// httpClient.getConnectionManager().shutdown();		// }		// }		Util.printLog("上传成功");		return mContext.getString(R.string.upload_fail);	}