问通过广播接收器监控Wifi连接和断开状态

EN

public class NetworkChangeReceiver extends BroadcastReceiver {

    public static final String TYPE_NET_CONNECTIVITY_CHANGE = "android.net.conn.CONNECTIVITY_CHANGE";

    @Override
    public void onReceive(final Context context, Intent intent) {
        if (TYPE_NET_CONNECTIVITY_CHANGE.equals(intent.getAction())) {
            boolean connected = NetworkStatus.isNetworkConnected(context);
            if (connected) {
                //Connected

            } else {
              //Disconnected
            }
        }
    }
}

<application
       ...>
    <receiver android:name=". NetworkChangeReceiver" >
        <intent-filter>
            <action android:name="android.net.wifi.WifiManager.WIFI_STATE_CHANGED_ACTION" />
            <action android:name="android.intent.action.PHONE_STATE" />
        </intent-filter>
    </receiver>

</application>