sticky

All I am trying to accomplish is to be able to have an unordered list of links in which one is clicked, the parent list item is assigned the class "active." Once another link is clicked within that list, it checked to see if "active" is assigned, remove it from that list item, and add it to the most recent clicked links parent list item. Example: Step One - User has clicked the link "I am link two" <ul> <li><a href="#">I am link one</a></li> <li class="active"><a href="#">I am link two</a></li> </ul> Step Two - User has now clicked the link "I am link one" <ul> <li class="active"><a href="#">I

Android widget插件，需要服务一直运行，定时更新时间及天气数据，但是在Android 7.0的设备上测试没有问题，虽然锁屏一段时间后，即手机进入休眠状态后，服务会暂停，但手机在亮屏的瞬间，服务会重新启动。这是在控制功耗的情况下比较完美解决。 然鹅，运行在Android 9.0的设备上，问题就出现了，就算不锁屏运行一段时间后，服务都会自动终止，且无法重新启动，手机关机重启后，没启动。 在博客上看前辈的解决方案，大都是如下的解决方案 1、让服务持续运行而不受手机休眠的影响，要这样处理： 在onCreate里面添加： pm = (PowerManager)MyApplicationHolder.getContext().getSystemService(Context.POWER_SERVICE); wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "myservice"); wl.acquire(); 在onDestroy里添加： wl.release(); 这种处理方案显然不适合我的这种情况。 后来在onStartCommand方法中有几个变量： 解决方案：手动返回START_STICKY，亲测这样设置后，原问题解决，且观测手机唤醒曲线，证明这样设置不会造成额外的性能消耗。 @Override public int

‍‍‍‍ 1，单ip多域名訪問不同網站，並且限制用戶使用IP訪問方法; ‍ ‍ Apche httpd 在 conf.d 或者 conf 文件夹下建立新的配置档案 vim zzgds.com.conf Listen 80 ServerName 10.207.238.65 NameVirtualHost *:80 <VirtualHost *:80> ServerAdmin jason.zr.zhang@icloud.com DocumentRoot /var/www/html ServerName 10.207.238.65 ErrorLog /var/log/httpd/10.zzgds.com-error_log CustomLog /var/log/httpd/10.zzgds.com-access_log common <Directory "/var/www/html"> Options Indexes FollowSymLinks allow from all </Directory> </VirtualHost> <VirtualHost *:80> ServerAdmin jason.zr.zhang@icloud.com ServerName scm-sz.zzgds.com RewriteEngine On RewriteCond %{HTTP_HOST}

LiveData是17年GoogleIO大会上提出来的一个新技术。相对于通信总线类型的框架EventBus和RxBus来说，它更简单，更简洁、更解耦。 LiveEventBus是一款Android消息总线，基于LiveData，具有生命周期感知能力，支持Sticky，支持AndroidX，支持跨进程，支持跨APP LiveDataBus优点 LiveDataBus的实现及其简单 相对EventBus复杂的实现，LiveDataBus只需要一个类就可以实现 LiveDataBus可以减小APK包的大小 LiveDataBus只依赖Android官方组件LiveData，本身实现只一个类。EventBus 57Kb、RxJava 2.2M LiveDataBus 依赖方支持更好 LiveDataBus只依赖Android官方组件LiveData，相比RxBus依赖的RxJava和RxAndroid，依赖方支持更好 LiveDataBus具有生命周期感知 LiveDataBus具有生命周期感知，在Android系统中使用调用者不需要调用反注册，相比EventBus和RxBus使用更为方便，并且没有内存泄漏风险。 LiveEventBus的特点 生命周期感知，消息随时订阅，自动取消订阅 支持Sticky粘性消息 支持AndroidX 支持跨进程通信 支持跨APP通信

i have a div with with property <div id="_body_container" style="height: 500px; overflow-x: auto; overflow-y: auto; "> </div>` inside this div i have the table which has class views-table , this table has 100% width which makes it's parent div: _body_container scrollable.I want to fix the first and the second column of this table sticky at their positions while the left and right scroll event happen for _body_container structure is like: Assuming each section is a <td> element... CSS table { position: relative; padding-left: (width-of-your-td-elements); } table td:first-of-type { position:

I'd like an elegant way to "collect" multi-level headers at the top of the window as the user scrolls, and position:sticky gets me 90% of the way there. The snippet below works just as I'd like it to with one exception: when Header 2b reaches the top, Header 3b is still visible. Since Header 3b is meant to be a "child" of Header 2a, I'd like it to either scroll away or somehow be hidden once Header 2b reaches the top. (Predictably, Header 1b and Header 2d both have the same issue.) I know that what I have here is how the CSS is supposed to work, but is there an elegant way to make it work the

I do NOT want a FIXED footer, I need a STICKY footer. My sticky footer worked fine at first but when the content is at a certain height, there is a margin between the footer and bottom of the page. Try messing with the browser height and content div height, and you should see where the problem is. It leaves an awkward margin between the footer and the bottom of the page. Thank you in advance. CSS Code: html, body { height:100%; margin:0; } body { color:#FFF; font:16px Tahoma, sans-serif; text-align:center; } a { text-decoration:none; } #wrapper { height:100%; margin:0 auto; min-height:100%;