我有WiFi连接检测问题。我的目标是检测用户何时在不同的WiF之间切换。我找到了this,但它只检测WiFi建立的时间。在我的情况下,我需要知道什么时候一个WiFi网络在手机上改变为另一个。
答案 0 :(得分:1)
您可以使用BroadcastReceiver
public class ConnectivityReceiver extends BroadcastReceiver {
@Override
public void onReceive(Context context, Intent intent) {
ConnectivityManager conMan = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo netInfo = conMan.getActiveNetworkInfo();
if(intent.getAction().equals(WifiManager.NETWORK_STATE_CHANGED_ACTION)) {
if(netInfo.isConnected()) {
WifiManager wifiManager = (WifiManager) context.getAplicationContext().getSystemService (Context.WIFI_SERVICE);
WifiInfo info = wifiManager.getConnectionInfo ();
String ssid = info.getSSID();
Log.d("Wifi Connected", "Wifi name is "+ info.getSSID());
}
}
}
}