/** @Description: 从拍照获取 */
 private void getPicFromCamera() {
   imagePath = FileUtils.getImagePath();
   File f = new File(imagePath);
   if (f.exists()) {
     f.delete();
   }
   try {
     f.createNewFile();
   } catch (IOException e) {
     e.printStackTrace();
   }
   Uri uri = Uri.fromFile(f);
   Intent camera = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
   camera.putExtra(MediaStore.EXTRA_OUTPUT, uri);
   startActivityForResult(camera, CommonConstant.REQUESTCODE_PHOTO_CAMERA);
 }