⭐️ Impl: Add swift-programmatic-modal

experiments/swift-programmatic-modal/RNIDynamicModal/RNIDynamicModal.swift

@@ -0,0 +1,114 @@
+//
+//  RNIDynamicModal.swift
+//  swift-programmatic-modal
+//
+//  Created by Dominic Go on 5/15/23.
+//
+
+import UIKit
+
+class RNIDynamicModalAnimator: NSObject, UIViewControllerTransitioningDelegate {
+
+  enum Direction {
+    case left, right, top, bottom;
+  };
+
+  let direction: Direction;
+  let isPresentation: Bool;
+
+  init(
+    direction: Direction,
+    isPresentation: Bool
+  ) {
+    self.direction = direction;
+    self.isPresentation = isPresentation;
+
+    super.init();
+  };
+
+  // MARK: - UIViewControllerTransitioningDelegate
+  // ---------------------------------------------
+
+  func transitionDuration(
+    using transitionContext: UIViewControllerContextTransitioning?
+  ) -> TimeInterval {
+    return 0.3
+  }
+
+  func animateTransition(
+    using transitionContext: UIViewControllerContextTransitioning
+  ) {
+
+    // 1
+    let key: UITransitionContextViewControllerKey = isPresentation ? .to : .from
+
+    guard let controller = transitionContext.viewController(forKey: key)
+      else { return }
+
+    // 2
+    if isPresentation {
+      transitionContext.containerView.addSubview(controller.view)
+    }
+
+    // 3
+    let presentedFrame = transitionContext.finalFrame(for: controller)
+    var dismissedFrame = presentedFrame;
+
+    switch direction {
+      case .left:
+        dismissedFrame.origin.x = -presentedFrame.width
+
+      case .right:
+        dismissedFrame.origin.x = transitionContext.containerView.frame.size.width
+
+      case .top:
+        dismissedFrame.origin.y = -presentedFrame.height
+
+      case .bottom:
+        dismissedFrame.origin.y = transitionContext.containerView.frame.size.height
+    }
+
+    // 4
+    let initialFrame = isPresentation ? dismissedFrame : presentedFrame
+    let finalFrame = isPresentation ? presentedFrame : dismissedFrame
+
+    // 5
+    let animationDuration = transitionDuration(using: transitionContext)
+    controller.view.frame = initialFrame
+    UIView.animate(
+      withDuration: animationDuration,
+      animations: {
+        controller.view.frame = finalFrame
+    }, completion: { finished in
+      if !self.isPresentation {
+        controller.view.removeFromSuperview()
+      }
+      transitionContext.completeTransition(finished)
+    })
+  }
+};
+
+
+
+class RNIDynamicModalViewController: UIViewController {
+
+  override func loadView() {
+    let rootView = UIView();
+    rootView.backgroundColor = .white;
+
+    self.view = rootView;
+
+    let label = UILabel();
+    label.text = "Hello World!";
+    label.textColor = .black;
+
+
+    rootView.addSubview(label);
+    label.translatesAutoresizingMaskIntoConstraints = false;
+
+    NSLayoutConstraint.activate([
+      label.centerXAnchor.constraint(equalTo: view.centerXAnchor),
+      label.centerYAnchor.constraint(equalTo: view.centerYAnchor)
+    ]);
+  };
+};

experiments/swift-programmatic-modal/RNIDynamicModal/RootViewController.swift

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+//
+//  RootViewController.swift
+//  swift-programmatic-modal
+//
+//  Created by Dominic Go on 5/17/23.
+//
+
+import UIKit
+
+class RootViewController : UIViewController {
+  override func loadView() {
+    let view = UIView()
+    view.backgroundColor = .white;
+
+    let label = UILabel();
+    label.text = "Show Modal!";
+    label.textColor = .black;
+    label.isUserInteractionEnabled = true;
+
+    label.addGestureRecognizer(
+      UITapGestureRecognizer(
+        target: self,
+        action: #selector(self.onPressButton(_:))
+      )
+    );
+
+    view.addSubview(label);
+
+    view.translatesAutoresizingMaskIntoConstraints = false;
+    label.translatesAutoresizingMaskIntoConstraints = false;
+
+
+    NSLayoutConstraint.activate([
+      label.centerXAnchor.constraint(equalTo: view.centerXAnchor),
+      label.centerYAnchor.constraint(equalTo: view.centerYAnchor)
+    ]);
+
+    self.view = view
+  };
+
+  @objc func onPressButton(_ sender: UITapGestureRecognizer){
+
+    let modalVC = RNIDynamicModalViewController();
+
+    // let transitionController = RNIDynamicModalTransitionController(
+    //   presentedViewController: modalVC,
+    //   presenting: self
+    // );
+    // 
+    // modalVC.modalPresentationStyle = .custom;
+    // modalVC.transitioningDelegate = transitionController;
+
+    self.present(modalVC, animated: true);
+  };
+};