Fixed iOS 11 navigationBar layoutMargin to zero

Sources/iOS/NavigationBar.swift

@@ -134,6 +134,13 @@ open class NavigationBar: UINavigationBar {
     layoutShape()
     layoutShadowPath()
     
+    //iOS 11 added left/right layout margin in subviews of UINavigationBar
+    //since we do not want to unsafely access private view directly
+    //iterate subviews to set `layoutMargin` to zero
+    for view in subviews {
+      view.layoutMargins = .zero
+    }
+    
     if let v = topItem {
       layoutNavigationItem(item: v)
     }
@@ -141,7 +148,6 @@ open class NavigationBar: UINavigationBar {
     if let v = backItem {
       layoutNavigationItem(item: v)
     }
-        
     layoutDivider()
   }
   
@@ -155,10 +161,10 @@ open class NavigationBar: UINavigationBar {
   open func prepare() {
     barStyle = .black
     isTranslucent = false
-        depthPreset = .depth1
+    depthPreset = .none
     contentScaleFactor = Screen.scale
-        contentEdgeInsetsPreset = .square1
-        interimSpacePreset = .interimSpace3
+    contentEdgeInsetsPreset = .none
+    interimSpacePreset = .none
     backButtonImage = Icon.cm.arrowBack
     
     if #available(iOS 11, *) {