title: remove blank cell in UICollectionView
body: <p>Right now i am working with UICollection view, which i am trying to make a grid view! for loading images</p>
  
  <p><img src="https://i.stack.imgur.com/VawPH.png" alt="enter image description here"></p>
  
  <p>i have a array with Title, which i am displaying on toolbar by using index.section.</p>
  
  <p>now my problem is. if the count of section is odd number there with be an empty space in between the sections something like this.<img src="https://i.stack.imgur.com/Zn0Qx.png" alt="enter image description here"></p>
  
  <p>for avoiding this i am loading all images in one section, but now as i have one section i cannot updates my title from the title array. i am running out of idea's to handle both .</p>
  
  <p>do anyone have some solution or idea?</p>