fix present view controller UI issue for iPad

Session/DMs/NewDMVC.swift

@@ -73,7 +73,7 @@ final class NewDMVC : BaseVC, UIPageViewControllerDataSource, UIPageViewControll
         tabBar.pin(.leading, to: .leading, of: view)
         let tabBarInset: CGFloat
         if #available(iOS 13, *) {
-            tabBarInset = navigationBar.height()
+            tabBarInset = UIDevice.current.isIPad ? navigationBar.height() + 20 : navigationBar.height()
         } else {
             tabBarInset = 0
         }
@@ -232,7 +232,7 @@ private final class EnterPublicKeyVC : UIViewController {
         // Share button
         let shareButton = Button(style: .unimportant, size: .medium)
         shareButton.setTitle(NSLocalizedString("share", comment: ""), for: UIControl.State.normal)
-        shareButton.addTarget(self, action: #selector(sharePublicKey), for: UIControl.Event.touchUpInside)
+        shareButton.addTarget(self, action: #selector(sharePublicKey(_:)), for: UIControl.Event.touchUpInside)
         // Button container
         buttonContainer.addArrangedSubview(copyButton)
         buttonContainer.addArrangedSubview(shareButton)
@@ -330,8 +330,13 @@ private final class EnterPublicKeyVC : UIViewController {
         Timer.scheduledTimer(timeInterval: 4, target: self, selector: #selector(enableCopyButton), userInfo: nil, repeats: false)
     }
     
-    @objc private func sharePublicKey() {
+    @objc private func sharePublicKey(_ sender: UIButton) {
         let shareVC = UIActivityViewController(activityItems: [ getUserHexEncodedPublicKey() ], applicationActivities: nil)
+        if UIDevice.current.isIPad {
+            shareVC.excludedActivityTypes = []
+            shareVC.popoverPresentationController?.sourceView = sender
+            shareVC.popoverPresentationController?.sourceRect = sender.bounds
+        }
         NewDMVC.navigationController!.present(shareVC, animated: true, completion: nil)
     }
     

Session/Home/HomeVC.swift

@@ -410,7 +410,9 @@ final class HomeVC : BaseVC, UITableViewDataSource, UITableViewDelegate, NewConv
     @objc private func openSettings() {
         let settingsVC = SettingsVC()
         let navigationController = OWSNavigationController(rootViewController: settingsVC)
-        navigationController.modalPresentationStyle = .fullScreen
+        if UIDevice.current.isIPad {
+            navigationController.modalPresentationStyle = .fullScreen
+        }
         present(navigationController, animated: true, completion: nil)
     }
     
@@ -425,12 +427,18 @@ final class HomeVC : BaseVC, UITableViewDataSource, UITableViewDelegate, NewConv
     @objc func joinOpenGroup() {
         let joinOpenGroupVC = JoinOpenGroupVC()
         let navigationController = OWSNavigationController(rootViewController: joinOpenGroupVC)
+        if UIDevice.current.isIPad {
+            navigationController.modalPresentationStyle = .fullScreen
+        }
         present(navigationController, animated: true, completion: nil)
     }
     
     @objc func createNewDM() {
         let newDMVC = NewDMVC()
         let navigationController = OWSNavigationController(rootViewController: newDMVC)
+        if UIDevice.current.isIPad {
+            navigationController.modalPresentationStyle = .fullScreen
+        }
         present(navigationController, animated: true, completion: nil)
     }
     
@@ -438,12 +446,18 @@ final class HomeVC : BaseVC, UITableViewDataSource, UITableViewDelegate, NewConv
     func createNewDMFromDeepLink(sessionID: String) {
         let newDMVC = NewDMVC(sessionID: sessionID)
         let navigationController = OWSNavigationController(rootViewController: newDMVC)
+        if UIDevice.current.isIPad {
+            navigationController.modalPresentationStyle = .fullScreen
+        }
         present(navigationController, animated: true, completion: nil)
     }
     
     @objc func createClosedGroup() {
         let newClosedGroupVC = NewClosedGroupVC()
         let navigationController = OWSNavigationController(rootViewController: newClosedGroupVC)
+        if UIDevice.current.isIPad {
+            navigationController.modalPresentationStyle = .fullScreen
+        }
         present(navigationController, animated: true, completion: nil)
     }
     

Session/Open Groups/JoinOpenGroupVC.swift

@@ -61,7 +61,7 @@ final class JoinOpenGroupVC : BaseVC, UIPageViewControllerDataSource, UIPageView
         tabBar.pin(.leading, to: .leading, of: view)
         let tabBarInset: CGFloat
         if #available(iOS 13, *) {
-            tabBarInset = navigationBar.height()
+            tabBarInset = UIDevice.current.isIPad ? navigationBar.height() + 20 : navigationBar.height()
         } else {
             tabBarInset = 0
         }