团队冲刺第二阶段09

做好了拍照的功能，增加了上传录制摄的功能。

部分代码：

private void takePhoto () {
    // Checks for camera app available
    Intent intent = new Intent(MediaStore.ACTION_IMAGE_CAPTURE);
    if (!IntentChecker.isAvailable(mainActivity, intent, new String[]{PackageManager.FEATURE_CAMERA})) {
      mainActivity.showMessage(R.string.feature_not_available_on_this_device, ONStyle.ALERT);

      return;
    }
    // Checks for created file validity
    File f = StorageHelper.createNewAttachmentFile(mainActivity, MIME_TYPE_IMAGE_EXT);
    if (f == null) {
      mainActivity.showMessage(R.string.error, ONStyle.ALERT);
      return;
    }
    attachmentUri = FileProviderHelper.getFileProvider(f);
    intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
    intent.putExtra(MediaStore.EXTRA_OUTPUT, attachmentUri);
    startActivityForResult(intent, TAKE_PHOTO);
  }

private void takeVideo () {
  Intent takeVideoIntent = new Intent(MediaStore.ACTION_VIDEO_CAPTURE);
  if (!IntentChecker.isAvailable(mainActivity, takeVideoIntent, new String[]{PackageManager.FEATURE_CAMERA})) {
    mainActivity.showMessage(R.string.feature_not_available_on_this_device, ONStyle.ALERT);

    return;
  }