Android monitor Android monitor system network connection open or close implementation code

This article introduces the implementation of the network connection open or close of the listening system in Android. Need a friend to reference under

Very simple, so look directly at the code

Copy CodeThe code is 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 CodeThe code is 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, which is an event that wants to listen for changes in the network settings.

Register for monitoring in the manifest file.

Copy CodeThe code is as follows:
<receiver android:name= "Xxx.netstatereceiver" >
<intent-filter>
<action android:name= "Android.net.conn.CONNECTIVITY_CHANGE"/>
</intent-filter>
</receiver>

You also need to include permission information.

Copy CodeThe code is as follows:
<uses-permission android:name= "Android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name= "Android.permission.ACCESS_WIFI_STATE"/>