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关于在使用中css文件不注册,无法显示图标的bug

<?php
namespace yiichina\icons;
use yii\helpers\Html;
/**
 * This is just an example.
 */
class Icon extends \yii\base\Widget
{
    public function init()
    {
        $view = $this->getView();
        IconAsset::register($view);
    }
    public static function show($name, $framework = 'fa', $start = '', $end = ' ', $options = [])
    {
        $class = $framework . ' ' . $framework . '-' . $name;
        $options['class'] = empty($options['class']) ? $class : $class . ' ' . $options['class'];
        return $start . Html::tag($framework == 'fa' ? 'i' : 'span', null, $options) . $end;
    }
}

原代码中Asset的注册在init方法中调用,但是有个致命的bug!!
最终显示图标是调用的show方法,而show方法是一个静态方法,导致资源文件无法注册,从而引发图标无法显示!!
两个解决方案:

  1. 不使用静态方式,采用new!(调用不方便,每次使用都需要new一次)
  2. 将注册资源的方法放在show里面实现(推荐)

贴上第二种代码

<?php

namespace yiichina\icons;

use yii\helpers\Html;

/**
 * This is just an example.
 */
class Icon extends \yii\base\Widget
{
    public static function show($name, $framework = 'fa', $start = '', $end = ' ', $options = [])
    {
    	IconAsset::register(\Yii::$app->getView());
    	
        $class = $framework . ' ' . $framework . '-' . $name;
        $options['class'] = empty($options['class']) ? $class : $class . ' ' . $options['class'];
        return $start . Html::tag($framework == 'fa' ? 'i' : 'span', null, $options) . $end;
    }
}

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