Android 判断网络连接情况

    public final static boolean isNetworkReady(final Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = cm.getActiveNetworkInfo();

        if (ni != null) {
            return ni.isConnected();
        }

        return false;
    }

    public final static boolean isMobileConnected(final Context context) {
        ConnectivityManager cm = (ConnectivityManager) context.getSystemService(Context.CONNECTIVITY_SERVICE);
        NetworkInfo ni = cm.getActiveNetworkInfo();

        if ((null != ni) && ni.isConnected()) {
            return ConnectivityManager.TYPE_MOBILE == ni.getType();
        }

        return false;
    }