title: SwiftUI preview provider with binding variables
body: <p>How do I generate a preview provider for a view which has a binding property?</p>
  
  <pre class="lang-swift prettyprint-override"><code>struct AddContainer: View {
      @Binding var isShowingAddContainer: Bool
      var body: some View {
          Button(action: {
                  self.isShowingAddContainer = false
              }) {
                  Text("Pop")
              }
      }
  }
  
  struct AddContainer_Previews: PreviewProvider {
      static var previews: some View {
          // ERROR HERE &lt;&lt;&lt;-----
          AddContainer(isShowingAddContainer: Binding&lt;Bool&gt;()
      }
  }
  </code></pre>
  
  <p>In Code above, How to pass a <code>Binding&lt;Bool&gt;</code> property in an initialiser of a view?</p>