From 582c000ff7a502fa5438ec70053c2db093e31da0 Mon Sep 17 00:00:00 2001
From: Daniel Andrews <daniel@revelry.co>
Date: Fri, 20 Mar 2020 14:10:16 -0500
Subject: [PATCH 1/4] Stop timer on componentWillUnmount

---
 lib/timer.js | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/lib/timer.js b/lib/timer.js
index c65a34c..1e0bec7 100644
--- a/lib/timer.js
+++ b/lib/timer.js
@@ -59,6 +59,10 @@ class Timer extends Component {
     }
   }
 
+  componentWillUnmount() {
+    this.stop()
+  }
+
   start() {
     const handleFinish = this.props.handleFinish ? this.props.handleFinish : () => alert("Timer Finished");
     const endTime = new Date().getTime() + this.state.remainingTime;

From c34f435085628a48338f6f8b9060097577a02275 Mon Sep 17 00:00:00 2001
From: Daniel Andrews <daniel@revelry.co>
Date: Fri, 20 Mar 2020 14:10:34 -0500
Subject: [PATCH 2/4] Bump package

---
 package.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/package.json b/package.json
index 84fd297..8276d3b 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "react-native-stopwatch-timer",
-  "version": "0.0.21",
+  "version": "0.0.22",
   "description": "A stopwatch/timer component for React Native.",
   "repository": {
     "type": "git",
@@ -17,4 +17,4 @@
   "dependencies": {
     "prop-types": "^15.7.2"
   }
-}
+}
\ No newline at end of file

From 4967d38e73962ae12fa74b207321a881ebfbaa5c Mon Sep 17 00:00:00 2001
From: Daniel Andrews <daniel@revelry.co>
Date: Fri, 20 Mar 2020 15:04:50 -0500
Subject: [PATCH 3/4] Dont continue starting if already running

---
 lib/timer.js | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/lib/timer.js b/lib/timer.js
index 1e0bec7..99f33b6 100644
--- a/lib/timer.js
+++ b/lib/timer.js
@@ -20,6 +20,7 @@ class Timer extends Component {
     this.state = {
       started: false,
       remainingTime: props.totalDuration,
+      stopped: false,
     };
     this.start = this.start.bind(this);
     this.stop = this.stop.bind(this);
@@ -49,7 +50,7 @@ class Timer extends Component {
 
   componentWillReceiveProps(newProps) {
 
-    if(newProps.start) {
+    if (newProps.start) {
       this.start();
     } else {
       this.stop();
@@ -64,6 +65,11 @@ class Timer extends Component {
   }
 
   start() {
+    if (this.interval) {
+      // already running, no need to re-start
+      return;
+    }
+
     const handleFinish = this.props.handleFinish ? this.props.handleFinish : () => alert("Timer Finished");
     const endTime = new Date().getTime() + this.state.remainingTime;
     this.interval = setInterval(() => {
@@ -75,11 +81,12 @@ class Timer extends Component {
         return;
       }
       this.setState({remainingTime: remaining});
-    }, 1);
+    }, 100);
   }
 
   stop() {
     clearInterval(this.interval);
+    this.interval = null;
   }
 
   reset(newDuration) {

From 74185c0d1873bd0c831717f0e34839b31146b507 Mon Sep 17 00:00:00 2001
From: Daniel Andrews <daniel@revelry.co>
Date: Fri, 20 Mar 2020 15:05:27 -0500
Subject: [PATCH 4/4] Remove stopped form state; not necessary

---
 lib/timer.js | 1 -
 1 file changed, 1 deletion(-)

diff --git a/lib/timer.js b/lib/timer.js
index 99f33b6..2e655d7 100644
--- a/lib/timer.js
+++ b/lib/timer.js
@@ -20,7 +20,6 @@ class Timer extends Component {
     this.state = {
       started: false,
       remainingTime: props.totalDuration,
-      stopped: false,
     };
     this.start = this.start.bind(this);
     this.stop = this.stop.bind(this);