Clear iOS notification on resume/open (#520)

app/push/index.js

@@ -31,12 +31,13 @@ const onNotification = (notification) => {
 	}
 };
 
+const getDeviceToken = () => PushNotification.getDeviceToken();
+const setBadgeCount = count => PushNotification.setBadgeCount(count);
 const initializePushNotifications = () => {
 	PushNotification.configure({
 		onNotification
 	});
+	setBadgeCount();
 };
 
-const getDeviceToken = () => PushNotification.getDeviceToken();
+export { initializePushNotifications, getDeviceToken, setBadgeCount };
-
-export { initializePushNotifications, getDeviceToken };

app/push/push.android.js

@@ -19,6 +19,8 @@ class PushNotification {
 		return this.deviceToken;
 	}
 
+	setBadgeCount = () => {}
+
 	configure(params) {
 		this.onRegister = params.onRegister;
 		this.onNotification = params.onNotification;

app/push/push.ios.js

@@ -21,6 +21,10 @@ class PushNotification {
 		return this.deviceToken;
 	}
 
+	setBadgeCount = (count = 0) => {
+		NotificationsIOS.setBadgesCount(count);
+	}
+
 	configure(params) {
 		this.onRegister = params.onRegister;
 		this.onNotification = params.onNotification;

app/sagas/state.js

@@ -3,6 +3,7 @@ import { FOREGROUND, BACKGROUND, INACTIVE } from 'redux-enhancer-react-native-ap
 
 import RocketChat from '../lib/rocketchat';
 import log from '../utils/log';
+import { setBadgeCount } from '../push';
 
 const appHasComeBackToForeground = function* appHasComeBackToForeground() {
 	const appRoot = yield select(state => state.app.root);
@@ -14,6 +15,7 @@ const appHasComeBackToForeground = function* appHasComeBackToForeground() {
 		return;
 	}
 	try {
+		setBadgeCount();
 		return yield RocketChat.setUserPresenceOnline();
 	} catch (e) {
 		log('appHasComeBackToForeground', e);