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我不太喜歡'lazyload-rails'gem,但它似乎是唯一可用於此功能的gem。我在一個turbolinks加載方法調用中封裝了lazyload方法本身。照片本身正在淡入淡出,但佔位符並未隱藏在容器中,只在圖像加載時顯示。當沒有圖片存在或在服務器後端加載時,如何隱藏佔位符圖像?LazyLoad不隱藏佔位符img Rails 5
HTML
<div class="container-fluid">
<div class="row">
<div class="col-md-12 post-image">
<%= image_tag post.post_photo.feed_preview, class: 'd-flex align-self-start mr-3 img-fluid rounded', lazy: true %>
<span class="badge badge-default"><%= fa_icon 'clock-o' %>
<small><%= time_ago_in_words(post.created_at) %> ago</small></span>
</div>
</div>
</div>
lazyload.rb
Lazyload::Rails.configure do |config|
config.placeholder = "/placeholder70x70.gif"
end
的JavaScript
<script type="text/javascript">
$(document).on('turbolinks:load', function() {
$("img").lazyload({
effect : "fadeIn"
});
});
</script>