From 322bf32ef207d351d64df3f2bd25f0631a33fb40 Mon Sep 17 00:00:00 2001
From: Nathan Tannar <nathantannar4@gmail.com>
Date: Wed, 27 Sep 2017 22:14:35 -0700
Subject: [PATCH] Tweaks to ensure scrollIndicatorInsets cannot be .zero

---
 Sources/InputTextView.swift          | 16 +++++++++++++++-
 Sources/MessagesViewController.swift |  5 +++++
 2 files changed, 20 insertions(+), 1 deletion(-)

diff --git a/Sources/InputTextView.swift b/Sources/InputTextView.swift
index 3ad14d88..9d622995 100644
--- a/Sources/InputTextView.swift
+++ b/Sources/InputTextView.swift
@@ -75,6 +75,17 @@ open class InputTextView: UITextView {
             updateConstraintsForPlaceholderLabel()
         }
     }
+    
+    open override var scrollIndicatorInsets: UIEdgeInsets {
+        didSet {
+            if scrollIndicatorInsets == .zero {
+                scrollIndicatorInsets = UIEdgeInsets(top: .leastNonzeroMagnitude,
+                                                     left: .leastNonzeroMagnitude,
+                                                     bottom: .leastNonzeroMagnitude,
+                                                     right: .leastNonzeroMagnitude)
+            }
+        }
+    }
 
     public weak var messageInputBar: MessageInputBar?
 
@@ -98,7 +109,10 @@ open class InputTextView: UITextView {
 
         font = UIFont.preferredFont(forTextStyle: .body)
         textContainerInset = UIEdgeInsets(top: 4, left: 4, bottom: 4, right: 4)
-        scrollIndicatorInsets = UIEdgeInsets(top: 4, left: 4, bottom: 4, right: 4)
+        scrollIndicatorInsets = UIEdgeInsets(top: .leastNonzeroMagnitude,
+                                             left: .leastNonzeroMagnitude,
+                                             bottom: .leastNonzeroMagnitude,
+                                             right: .leastNonzeroMagnitude)
         isScrollEnabled = false
         layer.cornerRadius = 5.0
         layer.borderWidth = 1.25
diff --git a/Sources/MessagesViewController.swift b/Sources/MessagesViewController.swift
index 384b0920..caf922cf 100644
--- a/Sources/MessagesViewController.swift
+++ b/Sources/MessagesViewController.swift
@@ -61,6 +61,11 @@ open class MessagesViewController: UIViewController {
         setupDelegates()
 
     }
+    
+    open override func viewWillAppear(_ animated: Bool) {
+        super.viewWillAppear(animated)
+        messageInputBar.inputTextView.setNeedsDisplay()
+    }
 
     open override func viewDidLayoutSubviews() {
         // Hack to prevent animation of the contentInset after viewDidAppear