loading

How can you make an animated loading sign in Perl?

99封情书 提交于 2020-06-16 08:42:33
问题 I need to know how to make an animated loading sign in Perl for keeping people entertained while my program's checking for updates. I've already tried using print "."; sleep(0.1); print "."; but that doesn't seem to work. Somebody please help me! print "."; sleep(0.1); print "."; isn't working I just want the program to wait 1/10th of a second to print the next . 回答1: Using Time::HiRes for sub-second timing needs, a few ways use warnings; use strict; use feature 'say'; use Time::HiRes qw

MathJax: Hiding Mathjax loading process

旧城冷巷雨未停 提交于 2020-06-09 16:49:32
问题 I have Mathjax in my code that I show in UIWebView . while Mathjax is loading it shows the loading process n the left down corner of my UIWebView same as below pics, that i want to hide them. I do not want my user see them. note : dummy solution is showing a fake "Loading" for some second that loading process finish and then show UIWebView . I really do not want to use this way. 回答1: In your MathJax configuration, you can add this: messageStyle: "none" According to the documentation, this

jQuery 页面载入进度条

99封情书 提交于 2020-04-08 00:53:38
页面 Loading 条基本人人都会用。它的原理很简单:在页头放置一个文字或者图片的 loading 状态,然后页尾载入一段 JS 隐藏掉,即根据浏览器的载入顺序来实现的简易 Loading 状态条。 上图展示了传统 Wordpress 模板在浏览器中的载入顺序,Loading 条的出现和消失分布于头尾。 如果我们在页面的不同位置放置多个 JS ,每个 JS 用于逐步增加 Loading 条的宽度,那么这个 Loading 条无疑会更具实用价值。它在一定程度上缓解了访客等待载入的枯燥感,同时还能客观反映页面载入的进度。若再配以 jQuery 内建的动画效果,其完全可以与浏览器自带的状态条媲美。 先来看一个演示: 地址 。 Code <! DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd" > < html xmlns ="http://www.w3.org/1999/xhtml" > < head > < title > Loading Status Bar </ title > < meta name ="robots" content ="noindex,follow" /> < script

vue加载图标实现loading组件

巧了我就是萌 提交于 2020-04-06 01:52:25
当图片还没加载完成时,可以通过loading组件填充空白区 效果图 components/loading/index.vue <template> <div class="mine-loading" :class="{'me-loading-inline':inline}"> <span class="mine-loading-indicator"> <img src="./loading.gif"> </span> <span class="mine-loading-text" v-if="loadingText">{{loadingText}}</span> </div> </template> <script> export default { name:"MeLoading", props:{//过滤器 inline:{ type:Boolean, default:false } }, data(){ return{ loadingText:"加载中..." } } } </script> <style lang="scss" scoped> .mine-loading{ width:100%; height:100%; display: flex; justify-content: center; align-items: center; flex-direction:

小程序清除缓存功能如何实现

家住魔仙堡 提交于 2020-04-03 22:07:14
小程序清除缓存功能如何实现 Wxml: <button type="primary" class="clear" bindtap="clearStorage" loading="{{loading}}" disabled="{{disabled}}">清空缓存</button> Js: clearStorage: function(){ var that = this; that.setData({ loading:true, disabled:true }); that.update(); wx.clearStorage({ success:function(){ that.setData({ loading:false, disabled:false, toast1Hidden:false }); that.update(); } }); }, 文章来源: 刘俊涛的博客 欢迎关注,有问题一起学习欢迎留言、评论。 来源: https://www.cnblogs.com/lovebing/p/9474308.html

How to manage the Blank White Loading screen of an Android Webview?

心不动则不痛 提交于 2020-03-18 10:31:56
问题 This is more of a visual thing than a direct issue, but when a WebView loads in my application, the screen is blank white for between 2-4 seconds until the content is fully loaded. The time is dependent on the size of content that is loading. Is there a way to manage this, so that the screen will only refresh to the content when loaded? Something like a "loading..." animation or something similar? I just do not want the plain white screen presented to my users. I have a splash screen that

微信小程序开发——连续快速点击按钮调用小程序api返回后仍然自动重新调用的异常处理

北慕城南 提交于 2020-03-14 17:51:48
前言:   小程序开发中诸如获取用户手机号码、调起微信支付、领取卡券等api都是会有一定的延迟的。也就是说通过点击按钮调用这些api的时候,从点击按钮调用api,到支付页面或者领取卡券界面展示出来是需要一定时间的,连续点击按钮,还是有可能会重复调用的。   虽然这种情况有点极端,正常用户是不会这么连续快速的点击按钮的,但是也不能排除有用户手抖,连续点了两下。如果重复调用的话,不仅体验不好,单击事件中涉及到后端接口操作的也可能引起其他异常。所以这个问题还是要处理下的。   刚开始想到的是使用loading开启模板来防止点击穿透,结果发现loading从调用到蒙板起作用也是需要一定时间的,还是解决不了这个问题(自定义loading加蒙板防点击穿透应该可以的)。后边就想到了采用给按钮添加启用/禁用状态来控制按钮点击的频率——点击按钮,按钮状态设置为禁用,一定时间之后,启用按钮可用状态。经多次验证,此法可行。 处理方法: 1. 设置按钮可用状态: Page({ data: { disabled: false //购买按钮是否可用,按钮默认可用,点击一次后置为不可用,一定时间之后恢复可用 }, /** * 购买按钮点击防重:禁用/启用 */ buyBtnDisable: function() { this.setData({ disabled: true }) var self = this

React: Show loading spinner while images load

杀马特。学长 韩版系。学妹 提交于 2020-03-13 06:43:10
问题 I have a React app which makes a call in useEffect to my API which returns a list of URLs to use as imy image srcs. I am using react-loader-spinner to show a loading spinner component while my images load. I have a loading variable in useState to determine whether the images are loading. I can not figure out how to stop showing the loading spinner and show my images once they have all loaded. Here is my code: Photos.jsx import React, { useState, useEffect, Fragment } from 'react' import

asp.net 加页面Loading效果

余生颓废 提交于 2020-03-11 13:24:45
protected void Page_Load( object sender, EventArgs e) { if ( ! IsPostBack) { Loading(); } } public static void Loading() { HttpContext hc = HttpContext.Current; hc.Response.Write( " <div id='loading'> " ); hc.Response.Write( " <img src='Images/Loading/loading.gif'/> " ); hc.Response.Write( " </div> " ); // hc.Response.Write("<script>mydiv.innerText = '';</script>"); hc.Response.Write( " <script type=text/javascript> " ); hc.Response.Write( " function document.onreadystatechange() " ); hc.Response.Write( @" { try { if (document.readyState == 'complete') { delNode('loading'); } } catch(e) {

Html5 loading 来了

柔情痞子 提交于 2020-03-11 13:24:27
Html5在移动设备上表现抢眼,几乎所有稍微高端一点的设备(乔帮主的iPad,iPhone和Andriod的平板手机等)的浏览器都支持Html5。而且据我个人的测试这些支持html5的设备对canvas标签的支持是相当的好。 所以就看了一点html5的东东,并研究了一下canvas标签的用法。如果你从来没有用过canvas标签,请参考 Html5 canvas cheat sheet 。 大家都知道web2.0以来大量的使用ajax,loading的小图标也有很多很多种,甚至还有专门提供loading图片的网站。所以我就想能不能让html5解决一下这个以前用gif文件解决的问题。没想到非常的简单,只用了不到一小时的时间就搞定了两个,而且这样做出来的loading图标是可定制的,既可以定制颜色,也可以定制大小等属性。 废话少叙,我们先来看下这两个loading图标的效果,注意,如果你用的是PC,请使用Firefox,Opera或者IE9看此效果。 第一个带着小尾巴转动的loading图标画图的思路是,首先画一个圆,然后在圆的边上按顺序画大小逐渐减小的小圆点,在每次刷新画布时改变这一系列的小圆点在大圆边上的位置。 <!doctype html> <html> <head> <meta http-equiv="content-type" content="GBK"/> <title