import android.content.Context;
?import android.net.ConnectivityManager;
?import android.net.NetworkInfo;?
?

?ConnectivityManager cm;
?cm = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);

?boolean isWifiConnected=cm.getNetworkInfo(ConnectivityManager.TYPE_WIFI).getState() == NetworkInfo.State.CONNECTED ? true : false ;
?boolean isGprsConnected=cm.getNetworkInfo(ConnectivityManager.TYPE_MOBILE).getState() == NetworkInfo.State.CONNECTED ? true : false ;

需要添加权限：

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