添加阴影效果

BFRecordScreenKit/Classes/RecordScreen/Controller/BFRecordScreenController.swift

@@ -446,6 +446,10 @@ public class BFRecordScreenController: BFBaseViewController {
         btn.imageEdgeInsets = UIEdgeInsets(top: -20, left: 4, bottom: 0, right: -4)
         btn.adjustsImageWhenHighlighted = false
         btn.titleEdgeInsets = UIEdgeInsets(top: 20, left: -40, bottom: -20, right: 0)
+        btn.layer.shadowOpacity = 0.4
+        btn.layer.shadowColor = UIColor.black.cgColor
+        btn.layer.shadowOffset = CGSize(width: 0, height: 2)
+        btn.layer.shadowRadius = 2
         return btn
     }()
 
@@ -459,6 +463,10 @@ public class BFRecordScreenController: BFBaseViewController {
         btn.addTarget(self, action: #selector(soundSetting), for: .touchDown)
         btn.imageEdgeInsets = UIEdgeInsets(top: -20, left: 4, bottom: 0, right: -4)
         btn.titleEdgeInsets = UIEdgeInsets(top: 20, left: -40, bottom: -20, right: 0)
+        btn.layer.shadowOpacity = 0.4
+        btn.layer.shadowColor = UIColor.black.cgColor
+        btn.layer.shadowOffset = CGSize(width: 0, height: 2)
+        btn.layer.shadowRadius = 2
         return btn
     }()
     
@@ -472,6 +480,10 @@ public class BFRecordScreenController: BFBaseViewController {
         btn.imageEdgeInsets = UIEdgeInsets(top: -20, left: 4, bottom: 0, right: -4)
         btn.adjustsImageWhenHighlighted = false
         btn.titleEdgeInsets = UIEdgeInsets(top: 20, left: -40, bottom: -20, right: 0)
+        btn.layer.shadowOpacity = 0.4
+        btn.layer.shadowColor = UIColor.black.cgColor
+        btn.layer.shadowOffset = CGSize(width: 0, height: 2)
+        btn.layer.shadowRadius = 2
         return btn
     }()