android检查手机和无线是否连接的方法

ConnectivityManager manager = (ConnectivityManager) getSystemService(Context.CONNECTIVITY_SERVICE);
NetworkInfo info = manager.getActiveNetworkInfo();
if(info!=null && info.isConnected()){
return true;
}else{
return false;
}

TelephonyManager manager = (TelephonyManager) getSystemService(Context.TELEPHONY_SERVICE);
int state = manager.getDataState();
if(state == TelephonyManager.DATA_CONNECTED){
urn true;
}else{
urn false;
}