show a preview of captured image only if set so

app/src/main/java/com/simplemobiletools/camera/Preview.java

@@ -299,12 +299,16 @@ public class Preview extends ViewGroup
     private Camera.PictureCallback takePictureCallback = new Camera.PictureCallback() {
         @Override
         public void onPictureTaken(byte[] data, Camera cam) {
+            if (mConfig.isShowPreviewEnabled()) {
                 new Handler().postDelayed(new Runnable() {
                     @Override
                     public void run() {
                         resumePreview();
                     }
                 }, PHOTO_PREVIEW_LENGTH);
+            } else {
+                resumePreview();
+            }
 
             new PhotoProcessor(mActivity, mTargetUri).execute(data);
         }