Question

android 判断当前的网络连接是wifi还是3g，4g csdn

Answer 1

/**
* 判断是否是wifi连接
*/
public static boolean isWifi(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (connectivity == null)
return false;
return connectivity.getActiveNetworkInfo().getType() == ConnectivityManager.TYPE_WIFI;

}
/**
* 判断网络是否连接
*
*/
public static boolean isConnected(Context context) {
ConnectivityManager connectivity = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
if (null != connectivity) {
NetworkInfo info = connectivity.getActiveNetworkInfo();
if (null != info && info.isConnected()) {
if (info.getState() == NetworkInfo.State.CONNECTED) {
return true;
}
}
}
return false;
}