react native alarm Notification not working when we close the app - react-native

Question

when i set the alarm its working when app is open when i schedule the alarm and close the app its not working. I try on physical devices Android 11 but its not working.
Android Mainfiest code
<application
android:name=".MainApplication"
android:label="#string/app_name"
android:icon="#mipmap/ic_launcher"
android:roundIcon="#mipmap/ic_launcher_round"
android:allowBackup="false"
android:theme="#style/AppTheme">
<activity
android:name=".MainActivity"
android:label="#string/app_name"
android:configChanges="keyboard|keyboardHidden|orientation|screenSize|uiMode"
android:launchMode="singleTask"
android:windowSoftInputMode="adjustResize">
<intent-filter>
<action android:name="android.intent.action.MAIN" />
<category android:name="android.intent.category.LAUNCHER" />
</intent-filter>
</activity>
<service android:name="com.emekalites.react.alarm.notification.ANService" android:enabled="true"/>
<receiver
android:name="com.emekalites.react.alarm.notification.AlarmReceiver"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="ACTION_DISMISS" />
<action android:name="ACTION_SNOOZE" />
</intent-filter>
</receiver>
<receiver
android:name="com.emekalites.react.alarm.notification.AlarmDismissReceiver"
android:enabled="true"
android:exported="true" />
<receiver
android:name="com.emekalites.react.alarm.notification.AlarmBootReceiver"
android:directBootAware="true"
android:enabled="true"
android:exported="true">
<intent-filter>
<action android:name="android.intent.action.BOOT_COMPLETED" />
<action android:name="android.intent.action.QUICKBOOT_POWERON" />
<action android:name="com.htc.intent.action.QUICKBOOT_POWERON" />
<action android:name="android.intent.action.LOCKED_BOOT_COMPLETED" />
</intent-filter>
</receiver>
</application>
Schedule alarm
const alarmNotifData = {
title: 'Alarm Ringing', // Required
message: this.state.name, // Required
channel: 'alarm-channel', // Required. Same id as specified in MainApplication's onCreate method
ticker: 'My Notification Ticker',
auto_cancel: true, // default: true
vibrate: true,
vibration: 100, // default: 100, no vibration if vibrate: false
small_icon: 'ic_launcher', // Required
large_icon: 'ic_launcher',
play_sound: true,
sound_name: null, // Plays custom notification ringtone if sound_name: null
color: 'red',
schedule_once: true, // Works with ReactNativeAN.scheduleAlarm so alarm fires once
// tag: 'some_tag',
};
var alarm_id;
if (!isother) {
try {
alarm_id = await ReactNativeAN.scheduleAlarm({ ...alarmNotifData, fire_date: fireDate });
} catch (error) {
alert(error)
}
when i set the alarm its working when app is open when i schedule the alarm and close the app its not working
package.js
"#react-native-firebase/database": "^14.2.2",
"#react-native-firebase/messaging": "^14.2.2",
"#react-navigation/native": "^6.0.6",
"#react-navigation/stack": "^6.0.11",
"install": "^0.13.0",
"npm": "^8.3.0",
"react": "17.0.2",
"react-native": "0.66.4",
"react-native-alarm-notification": "^1.8.0",

Answer 1

I was read when you want show if app closed , you have to call that in background app refresh in android , you have to set push notification and this show even app closed , for android you can use firebase push notification and for ios basically use Apns or firebase too. for more info see this