Fix the listener to handle 'background' status instead of 'inactive'.

Author: ljunb

index.js

@@ -110,7 +110,7 @@ export default class Countdown extends PureComponent {
   };
 
   handleAppState = nextAppState => {
-    if (nextAppState === 'inactive') {
+    if (nextAppState === 'background') {
       this.recodTime = new Date();
       this.clearTimer();
     } else if (nextAppState === 'active') {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "rn-countdown",
-  "version": "0.3.1",
+  "version": "0.3.2",
   "description": "A smart countdown component for react-native apps. You may use it to handle different status when request a verification code.",
   "main": "index.js",
   "scripts": {