title: Objective-C How can I detect multitouch that come from many subview
body: <p>Objective-C</p>
  
  <p>Suppose I have main view name which have three subviews A, B, and C.</p>
  
  <p>A is scrollView. Both B and C are image view.</p>
  
  <p>I need to detect multitouch on the main view. For example, if you use two fingers touch at screen the alert box will show.</p>
  
  <p>If the two fingers is touch at the same subviews it will be OK.</p>
  
  <p>But if one finger touch at view B and another touch at view C there will be a problem because the main view receive 2 sequential touch not multitouch.</p>
  
  <p>I wonder if there is a solution for this problem?</p>
  
  <p>Thank you for every answers.</p>