Add hidden property in PresentationDetent

Sources/BottomSheet/BottomSheet.swift

@@ -144,7 +144,10 @@ struct SheetPlus<HContent: View, MContent: View, Background: View>: ViewModifier
         .onPreferenceChange(SheetPlusKey.self) { value in
             /// Quick hack to prevent the scrollview from resetting the height when keyboard shows up.
             /// Replace if the root cause has been located.
-            if value.detents.count == 0 { return }
+            if value.detents.count == 0 || value.selectedDetent == .hidden {
+                isPresented = false
+                return
+            }
 
             sheetConfig = value
             translation = value.translation

Sources/BottomSheet/Detents/DetentDefaults.swift

@@ -11,4 +11,5 @@ internal struct PresentationDetentDefaults {
     static let small: CGFloat = UIScreen.main.bounds.height * 0.2
     static let medium: CGFloat = UIScreen.main.bounds.height * 0.5
     static let large: CGFloat = UIScreen.main.bounds.height * 0.9
+    static let hidden: CGFloat = 0
 }

Sources/BottomSheet/Detents/DetentHelpers.swift

@@ -20,6 +20,8 @@ internal func detentLimits(detents: Set<PresentationDetent>) -> (min: CGFloat, m
                 return PresentationDetentDefaults.medium
             case .large:
                 return PresentationDetentDefaults.large
+            case .hidden:
+                return PresentationDetentDefaults.hidden
             case .fraction(let fraction):
                 return UIScreen.main.bounds.height * fraction
             case .height(let height):

Sources/BottomSheet/Detents/Detents.swift

@@ -7,11 +7,46 @@
 
 import SwiftUI
 
+/**
+ An enumeration to  represent various form of PresentationDetent
+
+ - `small`: A small sized bottom sheet. `.fraction(0.2)`
+ - `medium`: A medium sized bottom sheet, `.fraction(0.5)`
+ - `large`: A large sized bottom sheet. `.fraction(0.9)`
+ - `hidden`: Hide bottom sheet.
+ - `fraction`: Relative to screen height.
+ - `height`: A constant height.
+ */
+
 public enum PresentationDetent: Hashable {
+    /**
+      .fraction(0.2)
+     */
     case small
+
+    /**
+      .fraction(0.5)
+     */
     case medium
+
+    /**
+      .fraction(0.9)
+     */
     case large
+
+    /**
+      Hide bottom sheet
+     */
+    case hidden
+
+    /**
+      CGFloat 0 to 1
+     */
     case fraction(CGFloat)
+
+    /**
+      A constant height.
+     */
     case height(CGFloat)
 
     public var size: CGFloat {
@@ -22,6 +57,8 @@ public enum PresentationDetent: Hashable {
             return PresentationDetentDefaults.medium
         case .large:
             return PresentationDetentDefaults.large
+        case .hidden:
+            return PresentationDetentDefaults.hidden
         case .fraction(let fraction):
             return min(
                 UIScreen.main.bounds.height * fraction,

Sources/BottomSheet/Preference Keys/ConfigKey.swift

@@ -19,7 +19,7 @@ struct SheetPlusConfig: Equatable {
 }
 
 struct SheetPlusKey: PreferenceKey {
-    static var defaultValue: SheetPlusConfig = SheetPlusConfig(detents: [], selectedDetent: .constant(.height(.zero)), translation: 0)
+  static var defaultValue: SheetPlusConfig = SheetPlusConfig(detents: [], selectedDetent: .constant(.hidden), translation: 0)
 
     static func reduce(value: inout SheetPlusConfig, nextValue: () -> SheetPlusConfig) {
         /// This prevents the translation changes to be called whenever the keyboard is triggered.