From ec2d510be220425257d6b362bbddd9de56f3ef3a Mon Sep 17 00:00:00 2001
From: Shadowfacts <me@shadowfacts.net>
Date: Sun, 6 Sep 2020 23:27:43 -0400
Subject: [PATCH] Fix crash when opening Compose screen on iOS 13

---
 Tusker/Screens/Compose/MainComposeTextView.swift | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Tusker/Screens/Compose/MainComposeTextView.swift b/Tusker/Screens/Compose/MainComposeTextView.swift
index aeddf26022..713d7fbf0e 100644
--- a/Tusker/Screens/Compose/MainComposeTextView.swift
+++ b/Tusker/Screens/Compose/MainComposeTextView.swift
@@ -145,8 +145,10 @@ struct MainComposeWrappedTextView: UIViewRepresentable {
         context.coordinator.uiState = uiState
         
         if becomeFirstResponder {
-            uiView.becomeFirstResponder()
             DispatchQueue.main.async {
+                // calling becomeFirstResponder during the SwiftUI update causes a crash on iOS 13
+                uiView.becomeFirstResponder()
+                // can't update @State vars during the SwiftUI update
                 becomeFirstResponder = false
             }
         }