@Override
	protected void onActivityResult(int requestCode, int resultCode, Intent data) {
		super.onActivityResult(requestCode, resultCode, data);
		if (resultCode == RESULT_OK) {
			switch (requestCode) {
			case TAKE_PICTURE:
				//将保存在本地的图片取出并缩小后显示在界面上
				Bitmap bitmap = BitmapFactory.decodeFile(Environment.getExternalStorageDirectory()+"/image.jpg");
				Bitmap newBitmap = ImageTools.zoomBitmap(bitmap, bitmap.getWidth() / SCALE, bitmap.getHeight() / SCALE);
				//由于Bitmap内存占用较大，这里需要回收内存，否则会报out of memory异常
				bitmap.recycle();
				
				//将处理过的图片显示在界面上，并保存到本地
				iv_image.setImageBitmap(newBitmap);
				ImageTools.savePhotoToSDCard(newBitmap, Environment.getExternalStorageDirectory().getAbsolutePath(), String.valueOf(System.currentTimeMillis()));
				
				break;

			case CHOOSE_PICTURE:
				ContentResolver resolver = getContentResolver();
				//照片的原始资源地址
				Uri originalUri = data.getData(); 
	            try {
	            	//使用ContentProvider通过URI获取原始图片
					Bitmap photo = MediaStore.Images.Media.getBitmap(resolver, originalUri);
					if (photo != null) {
						//为防止原始图片过大导致内存溢出，这里先缩小原图显示，然后释放原始Bitmap占用的内存
						Bitmap smallBitmap = ImageTools.zoomBitmap(photo, photo.getWidth() / SCALE, photo.getHeight() / SCALE);
						//释放原始图片占用的内存，防止out of memory异常发生
						photo.recycle();
						
						iv_image.setImageBitmap(smallBitmap);
					}
				} catch (FileNotFoundException e) {
				    e.printStackTrace();
				} catch (IOException e) {
					e.printStackTrace();
				}
				break;
				
			case CROP:
				Uri uri = null;
				if (data != null) {
					uri = data.getData();
					System.out.println("Data");
				}else {
					System.out.println("File");
					String fileName = getSharedPreferences("temp",Context.MODE_WORLD_WRITEABLE).getString("tempName", "");
					uri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(),fileName));
				}
				cropImage(uri, 500, 500, CROP_PICTURE);
				break;
			
			case CROP_PICTURE:
				Bitmap photo = null;
				Uri photoUri = data.getData();
				if (photoUri != null) {
					photo = BitmapFactory.decodeFile(photoUri.getPath());
				}
				if (photo == null) {
					Bundle extra = data.getExtras();
					if (extra != null) {
		                photo = (Bitmap)extra.get("data");  
		                ByteArrayOutputStream stream = new ByteArrayOutputStream();  
		                photo.compress(Bitmap.CompressFormat.JPEG, 100, stream);
		            }  
				}
				iv_image.setImageBitmap(photo);
				break;
			default:
				break;
			}
		}
	}
	
	public void showPicturePicker(Context context,boolean isCrop){
		final boolean crop = isCrop;
		AlertDialog.Builder builder = new AlertDialog.Builder(context);
		builder.setTitle("图片来源");
		builder.setNegativeButton("取消", null);
		builder.setItems(new String[]{"拍照","相册"}, new DialogInterface.OnClickListener() {
			//类型码
			int REQUEST_CODE;
			
			@Override
			public void onClick(DialogInterface dialog, int which) {
				switch (which) {
				case TAKE_PICTURE:
					Uri imageUri = null;
					String fileName = null;
					Intent openCameraIntent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
					if (crop) {
						REQUEST_CODE = CROP;
						//删除上一次截图的临时文件
						SharedPreferences sharedPreferences = getSharedPreferences("temp",Context.MODE_WORLD_WRITEABLE);
						ImageTools.deletePhotoAtPathAndName(Environment.getExternalStorageDirectory().getAbsolutePath(), sharedPreferences.getString("tempName", ""));
						
						//保存本次截图临时文件名字
						fileName = String.valueOf(System.currentTimeMillis()) + ".jpg";
						Editor editor = sharedPreferences.edit();
						editor.putString("tempName", fileName);
						editor.commit();
					}else {
						REQUEST_CODE = TAKE_PICTURE;
						fileName = "image.jpg";
					}
					imageUri = Uri.fromFile(new File(Environment.getExternalStorageDirectory(),fileName));
					//指定照片保存路径（SD卡），image.jpg为一个临时文件，每次拍照后这个图片都会被替换
					openCameraIntent.putExtra(MediaStore.EXTRA_OUTPUT, imageUri);
					startActivityForResult(openCameraIntent, REQUEST_CODE);
					break;
					
				case CHOOSE_PICTURE:
					Intent openAlbumIntent = new Intent(Intent.ACTION_GET_CONTENT);
					if (crop) {
						REQUEST_CODE = CROP;
					}else {
						REQUEST_CODE = CHOOSE_PICTURE;
					}
					openAlbumIntent.setDataAndType(MediaStore.Images.Media.EXTERNAL_CONTENT_URI, "image/*");
					startActivityForResult(openAlbumIntent, REQUEST_CODE);
					break;

				default:
					break;
				}
			}
		});
		builder.create().show();
	}

	//截取图片
	public void cropImage(Uri uri, int outputX, int outputY, int requestCode){
		Intent intent = new Intent("com.android.camera.action.CROP");  
        intent.setDataAndType(uri, "image/*");  
        intent.putExtra("crop", "true");  
        intent.putExtra("aspectX", 1);  
        intent.putExtra("aspectY", 1);  
        intent.putExtra("outputX", outputX);   
        intent.putExtra("outputY", outputY); 
        intent.putExtra("outputFormat", "JPEG");
        intent.putExtra("noFaceDetection", true);
        intent.putExtra("return-data", true);  
	    startActivityForResult(intent, requestCode);
	}

Demo下载

Android 拍照上传和拍照本地显示，拍照剪切上传，选取本地图片剪切上传