BroadcastReceiver Class in not working at app first startup. I want to check the internet connection simultaneously also at app startup. Please help with the issue. 
NetworkchangeListener.Java 
public class NetworkChangeListener extends BroadcastReceiver {
public static boolean isNetworkConnected= false ;
@Override
public void onReceive(Context context, Intent intent) {
    isNetworkConnected = isNetworkAvailable(context);
    if(isNetworkConnected){
        Toast.makeText(context, "Connected", Toast.LENGTH_SHORT).show();
    }
    else{
        Toast.makeText(context, "Not Connected", Toast.LENGTH_SHORT).show();
    }
}
private boolean isNetworkAvailable(Context context) {
    ConnectivityManager connectivityManager
            = (ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetworkInfo = connectivityManager.getActiveNetworkInfo();
    return activeNetworkInfo != null;
}
}
Below is my Manifest.xml File
<?xml version="1.0" encoding="utf-8"?>
<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.dcastalia.clienttest">
    <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
    <uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
    <application
        android:allowBackup="true"
        android:icon="@mipmap/ic_launcher"
        android:label="@string/app_name"
        android:roundIcon="@mipmap/ic_launcher_round"
        android:supportsRtl="true"
        android:theme="@style/AppTheme">
        <activity android:name=".MainActivity">
            <intent-filter>
                <action android:name="android.intent.action.MAIN" />
                <category android:name="android.intent.category.LAUNCHER" />
            </intent-filter>
        </activity>
        <receiver android:name=".NetworkChangeListener">
            <intent-filter>
                <action android:name="android.net.conn.CONNECTIVITY_CHANGE"/>
            </intent-filter>
        </receiver>
    </application>
</manifest>
It's working fine when i change the network state but for the first runtime it's doesn't working.