isModalInPresentation prop for iOS >= 13

Libraries/Modal/Modal.js

@@ -70,6 +70,12 @@ export type Props = $ReadOnly<{|
    * See https://reactnative.dev/docs/modal.html#transparent
    */
   transparent?: ?boolean,
+
+  /**
+   * The `isModalInPresentation` prop determines whether whether the view controller
+   * enforces a modal behavior.
+   */
+  isModalInPresentation?: ?boolean,
 
   /**
    * The `statusBarTranslucent` prop determines whether your modal should go under
@@ -212,6 +218,7 @@ class Modal extends React.Component<Props> {
         animationType={animationType}
         presentationStyle={presentationStyle}
         transparent={this.props.transparent}
+        isModalInPresentation={this.props.isModalInPresentation}
         hardwareAccelerated={this.props.hardwareAccelerated}
         onRequestClose={this.props.onRequestClose}
         onShow={this.props.onShow}

Libraries/Modal/RCTModalHostViewNativeComponent.js

@@ -51,6 +51,12 @@ type NativeProps = $ReadOnly<{|
    * See https://reactnative.dev/docs/modal.html#transparent
    */
   transparent?: WithDefault<boolean, false>,
+
+  /**
+   * The `isModalInPresentation` callback is used to indicate whether the view controller enforces a modal behavior.
+   *
+   */
+  isModalInPresentation?: WithDefault<boolean, false>,
 
   /**
    * The `statusBarTranslucent` prop determines whether your modal should go under

React/Views/RCTModalHostView.h

@@ -22,7 +22,7 @@
 @property (nonatomic, copy) NSString *animationType;
 @property (nonatomic, assign) UIModalPresentationStyle presentationStyle;
 @property (nonatomic, assign, getter=isTransparent) BOOL transparent;
-
+@property(nonatomic, getter=isModalInPresentation) BOOL modalInPresentation;
 @property (nonatomic, copy) RCTDirectEventBlock onShow;
 
 @property (nonatomic, copy) NSNumber *identifier;

React/Views/RCTModalHostView.m

@@ -228,6 +228,18 @@ - (void)setTransparent:(BOOL)transparent
       transparent ? UIModalPresentationOverFullScreen : UIModalPresentationFullScreen;
 }
 
+- (BOOL)isModalInPresentation
+{
+  return _modalViewController.modalInPresentation;
+}
+
+- (void)setIsModalInPresentation:(BOOL)isInPresentation
+{
+  if (@available(iOS 13.0, *)) {
+    _modalViewController.modalInPresentation = isInPresentation;
+  }
+}
+
 #if !TARGET_OS_TV
 - (UIInterfaceOrientationMask)supportedOrientationsMask
 {

React/Views/RCTModalHostViewManager.m

@@ -111,6 +111,7 @@ - (void)invalidate
 
 RCT_EXPORT_VIEW_PROPERTY(animationType, NSString)
 RCT_EXPORT_VIEW_PROPERTY(presentationStyle, UIModalPresentationStyle)
+RCT_EXPORT_VIEW_PROPERTY(isModalInPresentation, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(transparent, BOOL)
 RCT_EXPORT_VIEW_PROPERTY(onShow, RCTDirectEventBlock)
 RCT_EXPORT_VIEW_PROPERTY(identifier, NSNumber)