FloatingPanelBackdropView supports UIAppearance

Author: scenee

Framework/Sources/FloatingPanel.swift

@@ -70,7 +70,6 @@ class FloatingPanel: NSObject, UIGestureRecognizerDelegate, UIScrollViewDelegate
         surfaceView = FloatingPanelSurfaceView()
 
         backdropView = FloatingPanelBackdropView()
-        backdropView.backgroundColor = .black
         backdropView.alpha = 0.0
 
         self.layoutAdapter = FloatingPanelLayoutAdapter(surfaceView: surfaceView,

Framework/Sources/FloatingPanelBackdropView.swift

@@ -6,4 +6,26 @@
 import UIKit
 
 /// A view that presents a backdrop interface behind a floating panel.
-public class FloatingPanelBackdropView: UIView { }
+public class FloatingPanelBackdropView: UIView {
+    override init(frame: CGRect) {
+        super.init(frame: frame)
+        setUp()
+    }
+
+    required public init?(coder aDecoder: NSCoder) {
+        super.init(coder: aDecoder)
+        setUp()
+    }
+
+    private func setUp() {
+        layer.backgroundColor = UIColor.black.cgColor
+    }
+
+    @objc dynamic public override var backgroundColor: UIColor? {
+        get {
+            guard let color = layer.backgroundColor else { return nil }
+            return UIColor(cgColor: color)
+        }
+        set { layer.backgroundColor = newValue?.cgColor }
+    }
+}