/**
* Render the switch button checkbox.
* @return string
* @uses [yii\helper\BaseHtml::checkbox()](http://www.yiiframework.com/doc-2.0/yii-helpers-basehtml.html#checkbox()-detail)
*/
protected function renderSwitch()
{
$value = ArrayHelper::getValue($this->inputOptions, 'value', null);
if ($this->hasModel()) {
$attributeValue = Html::getAttributeValue($this->model, $this->attribute);
$this->checked = "{$value}" === "{$attributeValue}";
}
$name = ArrayHelper::remove($this->inputOptions, 'name', null);
return implode("\n", [Html::beginTag('label'), $this->renderLabel('off'), Html::checkbox($name, $this->checked, $this->inputOptions), Html::tag('span', '', ['class' => 'lever']), $this->renderLabel('on'), Html::endTag('label')]);
}
