fix sizeToFit

Sources/StackKit/HStackView.swift

@@ -134,14 +134,7 @@ open class HStackView: UIView {
         setNeedsLayout()
         layoutIfNeeded()
 
-        var _size = size
-        if size.width == CGFloat.greatestFiniteMagnitude || size.width == 0 {
-            _size.width = contentSize.width
-        }
-        if size.height == CGFloat.greatestFiniteMagnitude || size.height == 0 {
-            _size.height = contentSize.height
-        }
-        return _size
+        return contentSize
     }
 
     open override func sizeToFit() {

Sources/StackKit/UIKit+FitSize.swift

@@ -54,28 +54,29 @@ extension UIView: FitSize {
         var size = resolveSize()
 
         if let w = size.width, let h = size.height { // 指定了 size（width & height) 优先使用 size
-            let size = CGSize(width: w, height: h)
-            let _ = sizeThatFits(size)
-            self.frame.size = size
+            let _ = sizeThatFits(.zero)
+            self.frame.size = CGSize(width: w, height: h)
             return
         }
 
         var fitWidth = CGFloat.greatestFiniteMagnitude
         var fitHeight = CGFloat.greatestFiniteMagnitude
 
         switch fitType {
-        case .width, .widthFlexible, .height, .heightFlexible:
+        case .width, .widthFlexible:
             if let w = applyMinMax(toWidth: size.width) {
                 fitWidth = w
             } else {
                 fitWidth = bounds.width
             }
 
+        case .height, .heightFlexible:
             if let h = applyMinMax(toHeight: size.height) {
                 fitHeight = h
             } else {
                 fitHeight = bounds.height
             }
+
         case .content:
             fitWidth = size.width ?? bounds.width
             fitHeight = size.height ?? bounds.height

Sources/StackKit/VStackView.swift

@@ -134,14 +134,7 @@ open class VStackView: UIView {
         setNeedsLayout()
         layoutIfNeeded()
 
-        var _size = size
-        if size.width == CGFloat.greatestFiniteMagnitude || size.width == 0 {
-            _size.width = contentSize.width
-        }
-        if size.height == CGFloat.greatestFiniteMagnitude || size.height == 0 {
-            _size.height = contentSize.height
-        }
-        return _size
+        return contentSize
     }
 
     open override func sizeToFit() {