Use:
View preview = layoutInflater.inflate(R.layout.item_cm_preview_image,parent,false);
and not:
View preview = layoutInflater.inflate(R.layout.item_cm_preview_image,null);
Use:
View preview = layoutInflater.inflate(R.layout.item_cm_preview_image,parent,false);
and not:
View preview = layoutInflater.inflate(R.layout.item_cm_preview_image,null);