cleanup for TabBar that utilizzes Bar::centerViews

Examples/Programmatic/Bar/Bar/ViewController.swift

@@ -71,15 +71,12 @@ class ViewController: UIViewController {
     }
     
     private func prepareBar() {
-        bar = Bar()
+        bar = Bar(leftViews: [menuButton], rightViews: [favoriteButton, shareButton])
         bar.backgroundColor = Color.blue.base
         
         bar.contentView.cornerRadiusPreset = .cornerRadius1
         bar.contentView.backgroundColor = Color.blue.lighten3
         
-        bar.leftViews = [menuButton]
-        bar.rightViews = [favoriteButton, shareButton]
-        
         view.layout(bar).horizontally().center()
     }
 }

Sources/iOS/Bar.swift

@@ -241,9 +241,9 @@ open class Bar: View {
      */
     open override func prepare() {
         super.prepare()
+        autoresizingMask = .flexibleWidth
         interimSpacePreset = .interimSpace3
         contentEdgeInsetsPreset = .square1
-        
         prepareContentView()
     }
     

Sources/iOS/TabBar.swift

@@ -78,7 +78,7 @@ open class TabBar: Bar {
                 b.removeFromSuperview()
             }
 			
-            contentView.grid.views = buttons as [UIView]
+            centerViews = buttons as [UIView]
             
 			layoutSubviews()
 		}
@@ -137,11 +137,10 @@ open class TabBar: Bar {
             return
         }
             
-        let columns: Int = contentView.grid.axis.columns / buttons.count
         for b in buttons {
-            b.grid.columns = columns
-            b.contentEdgeInsets = .zero
+            b.grid.columns = 0
             b.cornerRadius = 0
+            b.contentEdgeInsets = .zero
             
             if isLineAnimated {
                 prepareLineAnimationHandler(button: b)
@@ -210,7 +209,6 @@ open class TabBar: Bar {
 		super.prepare()
         contentEdgeInsetsPreset = .none
         interimSpacePreset = .none
-        autoresizingMask = .flexibleWidth
         prepareLine()
         prepareDivider()
 	}