Zend Framework教程之视图组件Zend_View用法详解
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本文实例讲述了Zend Framework教程之视图组件Zend_View用法。分享给大家供大家参考，具体如下： Zend_View是Zend Framework的视图组件，MVC中的视图层。 Zend_View也是应用的直接对用户展示的页面。这里介绍一下Zend_View的实现类，以及如何和Controller结合在一起的。 View的实现Zend_View的实现主要是通过如下目录的类实现： root@coder-671T-M:/library/Zend# tree | grep View.php │ └── View/ ├── View.php root@coder-671T-M:/library/Zend/View# tree . ├── Abstract.php ├── Exception.php ├── Helper │ ├── Abstract.php │ ├── Action.php │ ├── BaseUrl.php │ ├── Currency.php │ ├── Cycle.php │ ├── DeclareVars.php │ ├── Doctype.php │ ├── Fieldset.php │ ├── FormButton.php │ ├── FormCheckbox.php │ ├── FormElement.php │ ├── FormErrors.php │ ├── FormFile.php │ ├── FormHidden.php │ ├── FormImage.php │ ├── FormLabel.php │ ├── FormMultiCheckbox.php │ ├── FormNote.php │ ├── FormPassword.php │ ├── Form.php │ ├── FormRadio.php │ ├── FormReset.php │ ├── FormSelect.php │ ├── FormSubmit.php │ ├── FormTextarea.php │ ├── FormText.php │ ├── Gravatar.php │ ├── HeadLink.php │ ├── HeadMeta.php │ ├── HeadScript.php │ ├── HeadStyle.php │ ├── HeadTitle.php │ ├── HtmlElement.php │ ├── HtmlFlash.php │ ├── HtmlList.php │ ├── HtmlObject.php │ ├── HtmlPage.php │ ├── HtmlQuicktime.php │ ├── InlineScript.php │ ├── Interface.php │ ├── Json.php │ ├── Layout.php │ ├── Navigation │ │ ├── Breadcrumbs.php │ │ ├── HelperAbstract.php │ │ ├── Helper.php │ │ ├── Links.php │ │ ├── Menu.php │ │ └── Sitemap.php │ ├── Navigation.php │ ├── PaginationControl.php │ ├── Partial │ │ └── Exception.php │ ├── PartialLoop.php │ ├── Partial.php │ ├── Placeholder │ │ ├── Container │ │ │ ├── Abstract.php │ │ │ ├── Exception.php │ │ │ └── Standalone.php │ │ ├── Container.php │ │ ├── Registry │ │ │ └── Exception.php │ │ └── Registry.php │ ├── Placeholder.php │ ├── RenderToPlaceholder.php │ ├── ServerUrl.php │ ├── TinySrc.php │ ├── Translate.php │ ├── Url.php │ └── UserAgent.php ├── Interface.php └── Stream.php 6 directories,70 files Zend_View和Zend_Controller的整合主要在Zend_Controller_Action类中, getInvokeArg('noViewRenderer') && $this->_helper->hasHelper('viewRenderer')) {
return $this->view;
}
require_once 'Zend/View/Interface.php';
if (isset($this->view) && ($this->view instanceof Zend_View_Interface)) {
return $this->view;
}
$request = $this->getRequest();
$module = $request->getModuleName();
$dirs = $this->getFrontController()->getControllerDirectory();
if (empty($module) || !isset($dirs[$module])) {
$module = $this->getFrontController()->getDispatcher()->getDefaultModule();
}
$baseDir = dirname($dirs[$module]) . DIRECTORY_SEPARATOR . 'views';
if (!file_exists($baseDir) || !is_dir($baseDir)) {
require_once 'Zend/Controller/Exception.php';
throw new Zend_Controller_Exception('Missing base view directory ("' . $baseDir . '")');
}
require_once 'Zend/View.php';
$this->view = new Zend_View(array('basePath' => $baseDir));
return $this->view;
}
/**
* Render a view
*
* Renders a view. By default,views are found in the view script path as
* Zend_View.php类 _useViewStream = (bool) ini_get('short_open_tag') ? false : true;
if ($this->_useViewStream) {
if (!in_array('zend.view',stream_get_wrappers())) {
require_once 'Zend/View/Stream.php';
stream_wrapper_register('zend.view','Zend_View_Stream');
}
}
if (array_key_exists('useStreamWrapper',$config)) {
$this->setUseStreamWrapper($config['useStreamWrapper']);
}
parent::__construct($config);
}
/**
* Set flag indicating if stream wrapper should be used if short_open_tag is off
*
* @param bool $flag
* @return Zend_View
*/
public function setUseStreamWrapper($flag)
{
$this->_useStreamWrapper = (bool) $flag;
return $this;
}
/**
* Should the stream wrapper be used if short_open_tag is off?
*
* @return bool
*/
public function useStreamWrapper()
{
return $this->_useStreamWrapper;
}
/**
* Includes the view script in a scope with only public $this variables.
*
* @param string The view script to execute.
*/
protected function _run()
{
if ($this->_useViewStream && $this->useStreamWrapper()) {
include 'zend.view://' . func_get_arg(0);
} else {
include func_get_arg(0);
}
}
}
默认情况会自动通过Controller会通过render方法来实例化Zend_View,然后rener到对应的视图文件中。当然可以自己实例化Zend_View，然后使用。 action默认指向的文件是和action的名称相同，如果要指定视图文件，可以通过$this->render的相关方法指定.也可以通过addScriptPath和setScriptPath设置视图文件的目录。 （编辑：安卓应用网） 【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容! |