ios: fix member view freezing on iOS 15, closes #3487 (#3547)

apps/ios/Shared/Views/Chat/Group/GroupChatInfoView.swift

@@ -16,7 +16,6 @@ struct GroupChatInfoView: View {
     @Environment(\.dismiss) var dismiss: DismissAction
     @ObservedObject var chat: Chat
     @Binding var groupInfo: GroupInfo
-    @ObservedObject private var alertManager = AlertManager.shared
     @State private var alert: GroupChatInfoViewAlert? = nil
     @State private var groupLink: String?
     @State private var groupLinkMemberRole: GroupMemberRole = .member

apps/ios/Shared/Views/Chat/Group/GroupMemberInfoView.swift

@@ -188,17 +188,19 @@ struct GroupMemberInfoView: View {
                         // this condition prevents re-setting picker
                         if !justOpened { return }
                     }
-                    newRole = member.memberRole
-                    do {
-                        let (_, stats) = try apiGroupMemberInfo(groupInfo.apiId, member.groupMemberId)
-                        let (mem, code) = member.memberActive ? try apiGetGroupMemberCode(groupInfo.apiId, member.groupMemberId) : (member, nil)
-                        _ = chatModel.upsertGroupMember(groupInfo, mem)
-                        connectionStats = stats
-                        connectionCode = code
-                    } catch let error {
-                        logger.error("apiGroupMemberInfo or apiGetGroupMemberCode error: \(responseError(error))")
-                    }
                     justOpened = false
+                    DispatchQueue.main.async {
+                        newRole = member.memberRole
+                        do {
+                            let (_, stats) = try apiGroupMemberInfo(groupInfo.apiId, member.groupMemberId)
+                            let (mem, code) = member.memberActive ? try apiGetGroupMemberCode(groupInfo.apiId, member.groupMemberId) : (member, nil)
+                            _ = chatModel.upsertGroupMember(groupInfo, mem)
+                            connectionStats = stats
+                            connectionCode = code
+                        } catch let error {
+                            logger.error("apiGroupMemberInfo or apiGetGroupMemberCode error: \(responseError(error))")
+                        }
+                    }
                 }
                 .onChange(of: newRole) { newRole in
                     if newRole != member.memberRole {

apps/ios/Shared/Views/NewChat/QRCode.swift

@@ -74,6 +74,7 @@ struct QRCode: View {
         .onAppear {
             image = image ?? generateImage(uri, tintColor: tintColor)
         }
+        .frame(maxWidth: .infinity, maxHeight: .infinity)
     }
 }