/**     * 判断是否有网络     * @return     */    private boolean isNetWorkConnected() {        // TODO Auto-generated method stub        ConnectivityManager cm = (ConnectivityManager) getSystemService(CONNECTIVITY_SERVICE);        NetworkInfo info = cm.getActiveNetworkInfo();        Boolean result = false;        if (info != null && info.isConnected()) {            result = true;        } else {            result = false;        }        return result;    }

/**     *      * 进入系统设置界面     *      */    private void setNetWork() {        Intent intent = null;          if(android.os.Build.VERSION.SDK_INT>10){                intent = new Intent(android.provider.Settings.ACTION_WIRELESS_SETTINGS);            }else{                intent = new Intent();                ComponentName component = new ComponentName("com.android.settings","com.android.settings.WirelessSettings");                intent.setComponent(component);                intent.setAction("android.intent.action.VIEW");            }          startActivity(intent);    }