title: how to track progress and increment count of progress view when dealing with multiple tasks?
body: <p>i need to add circular progress view which shows progress of downloading and other multiple task completion status and want to show 100% completion and hide the progress view when all the task are completed. for Eg.</p>
  
  <pre><code>func downloadAndProcessImages(imagesArray: [URL]){
  
  downloadimages()
  resizeImages()
  addToDB()
  
  }
  
  
  func downloadimage(){
  
  for image in imagesArray{
  
  saveImaege()
  
  }
  
  }
  
  func addToDB(){
  
  // db tasks
  }
  
  
  
  So where to increment the count / progress of the progressview , when you have multiple tasks ?
  </code></pre>