Android Monitor System network connection to open or close the implementation code _android

It's simple, so just look at the code.

Copy Code code as follows:

Package xxx;

Import Android.content.BroadcastReceiver;
Import Android.content.Context;
Import android.content.Intent;
Import Android.net.ConnectivityManager;
Import Android.net.NetworkInfo;

Copy Code code as follows:

public class Netstatereceiver extends Broadcastreceiver {

@Override
public void OnReceive (context context, Intent Intent) {
Connectivitymanager manager = (Connectivitymanager) context
. Getsystemservice (Context.connectivity_service);
Networkinfo GPRS = Manager
. Getnetworkinfo (Connectivitymanager.type_mobile);
Networkinfo WiFi = Manager
. Getnetworkinfo (Connectivitymanager.type_wifi);
if (!gprs.isconnected () &&!wifi.isconnected ()) {
Network closed
} else {
Network opend

}
}

}

The code customizes a broadcastreceiver to listen for events that change the network settings.

Manifest in the file to register for listening.

Copy Code code as follows:

<receiver android:name= "Xxx.netstatereceiver" >
<intent-filter>
<action android:name= "Android.net.conn.CONNECTIVITY_CHANGE"/>
</intent-filter>
</receiver>

You also need to add permission information.

Copy Code code as follows:

<uses-permission android:name= "Android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name= "Android.permission.ACCESS_WIFI_STATE"/>