use if/else instead of switch for menu actions

Signed-off-by: Andy Scherzinger <info@andy-scherzinger.de>

src/main/java/com/owncloud/android/ui/preview/PreviewImageFragment.java

@@ -404,47 +404,38 @@ public class PreviewImageFragment extends FileFragment implements Injectable {
      */
     @Override
     public boolean onOptionsItemSelected(MenuItem item) {
-        switch (item.getItemId()) {
-            case R.id.action_send_share_file:
-                if (getFile().isSharedWithMe() && !getFile().canReshare()) {
-                    Snackbar.make(requireView(),
-                                  R.string.resharing_is_not_allowed,
-                                  Snackbar.LENGTH_LONG
-                                 )
-                            .show();
-                } else {
-                    containerActivity.getFileOperationsHelper().sendShareFile(getFile());
-                }
-                return true;
-
-            case R.id.action_open_file_with:
-                openFile();
-                return true;
-
-            case R.id.action_remove_file:
-                RemoveFilesDialogFragment dialog = RemoveFilesDialogFragment.newInstance(getFile());
-                dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
-                return true;
-
-            case R.id.action_see_details:
-                seeDetails();
-                return true;
-
-            case R.id.action_download_file:
-            case R.id.action_sync_file:
-                containerActivity.getFileOperationsHelper().syncFile(getFile());
-                return true;
-
-            case R.id.action_set_as_wallpaper:
-                containerActivity.getFileOperationsHelper().setPictureAs(getFile(), getImageView());
-                return true;
-
-            default:
-                return super.onOptionsItemSelected(item);
+        int itemId = item.getItemId();
+        if (itemId == R.id.action_send_share_file) {
+            if (getFile().isSharedWithMe() && !getFile().canReshare()) {
+                Snackbar.make(requireView(),
+                              R.string.resharing_is_not_allowed,
+                              Snackbar.LENGTH_LONG
+                             )
+                    .show();
+            } else {
+                containerActivity.getFileOperationsHelper().sendShareFile(getFile());
+            }
+            return true;
+        } else if (itemId == R.id.action_open_file_with) {
+            openFile();
+            return true;
+        } else if (itemId == R.id.action_remove_file) {
+            RemoveFilesDialogFragment dialog = RemoveFilesDialogFragment.newInstance(getFile());
+            dialog.show(getFragmentManager(), ConfirmationDialogFragment.FTAG_CONFIRMATION);
+            return true;
+        } else if (itemId == R.id.action_see_details) {
+            seeDetails();
+            return true;
+        } else if (itemId == R.id.action_download_file || itemId == R.id.action_sync_file) {
+            containerActivity.getFileOperationsHelper().syncFile(getFile());
+            return true;
+        } else if (itemId == R.id.action_set_as_wallpaper) {
+            containerActivity.getFileOperationsHelper().setPictureAs(getFile(), getImageView());
+            return true;
         }
+        return super.onOptionsItemSelected(item);
     }
 
-
     private void seeDetails() {
         containerActivity.showDetails(getFile());
     }
@@ -461,7 +452,6 @@ public class PreviewImageFragment extends FileFragment implements Injectable {
         super.onDestroy();
     }
 
-
     /**
      * Opens the previewed image with an external application.
      */
@@ -470,7 +460,6 @@ public class PreviewImageFragment extends FileFragment implements Injectable {
         finish();
     }
 
-
     private class LoadBitmapTask extends AsyncTask<OCFile, Void, LoadImage> {
         private static final int PARAMS_LENGTH = 1;
 
@@ -489,7 +478,6 @@ public class PreviewImageFragment extends FileFragment implements Injectable {
          */
         private int mErrorMessageId;
 
-
         /**
          * Constructor.
          *