From 44a3b32fa62327805fa03d9fbcbf578623c1251f Mon Sep 17 00:00:00 2001
From: Tsvetan Raikov <tsvetan.raikov@telerik.com>
Date: Wed, 17 Aug 2016 16:09:38 +0300
Subject: [PATCH] Fixed: There is an exception when removing a button

---
 tns-core-modules/ui/button/button.ios.ts | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/tns-core-modules/ui/button/button.ios.ts b/tns-core-modules/ui/button/button.ios.ts
index 3dd18d0fb..9954b1b85 100644
--- a/tns-core-modules/ui/button/button.ios.ts
+++ b/tns-core-modules/ui/button/button.ios.ts
@@ -69,6 +69,13 @@ export class Button extends common.Button {
         this.style._updateTextTransform();
     }
 
+    public onUnloaded() {
+        super.onUnloaded();
+        if (this._stateChangedHandler) {
+            this._stateChangedHandler.stop();
+        }
+    }
+
     @PseudoClassHandler("normal", "highlighted")
     _updateHandler(subscribe: boolean) {
         if (subscribe) {