Wie kann ich in Android einen zuverlässigen Listener für Internetkonnektivitätsänderungen erstellen?

<code class="java">public class NetworkUtil {
  public static int getConnectivityStatus(Context context) {
    // Check for active network
    ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo activeNetwork = cm.getActiveNetworkInfo();

    // Determine network type (Wi-Fi, mobile, or not connected)
    if (activeNetwork != null) {
      if (activeNetwork.getType() == ConnectivityManager.TYPE_WIFI) {
        return TYPE_WIFI;
      } else if (activeNetwork.getType() == ConnectivityManager.TYPE_MOBILE) {
        return TYPE_MOBILE;
      }
    }
    return TYPE_NOT_CONNECTED;
  }

  // Convert network status to string representation (Wi-Fi, mobile, or not connected)
  public static int getConnectivityStatusString(Context context) {
    int conn = NetworkUtil.getConnectivityStatus(context);
    int status = 0;
    if (conn == NetworkUtil.TYPE_WIFI) {
      status = NETWORK_STATUS_WIFI;
    } else if (conn == NetworkUtil.TYPE_MOBILE) {
      status = NETWORK_STATUS_MOBILE;
    } else if (conn == NetworkUtil.TYPE_NOT_CONNECTED) {
      status = NETWORK_STATUS_NOT_CONNECTED;
    }
    return status;
  }
}</code>

<code class="java">public class NetworkChangeReceiver extends BroadcastReceiver {
  @Override
  public void onReceive(final Context context, final Intent intent) {
    int status = NetworkUtil.getConnectivityStatusString(context);
    if ("android.net.conn.CONNECTIVITY_CHANGE".equals(intent.getAction())) {
      if (status == NetworkUtil.NETWORK_STATUS_NOT_CONNECTED) {
        // Handle loss of Internet connection
      } else {
        // Handle recovery of Internet connection
      }
    }
  }
}</code>

<code class="xml"><uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
<uses-permission android:name="android.permission.INTERNET" />

<receiver
    android:name="NetworkChangeReceiver"
    android:label="NetworkChangeReceiver" >
    <intent-filter>
        <action android:name="android.net.conn.CONNECTIVITY_CHANGE" />
        <action android:name="android.net.wifi.WIFI_STATE_CHANGED" />
    </intent-filter>
</receiver></code>