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MQTT物联网协议完全实践指南 · App Inventor 2 中文网
...载：
de.ullisroboterseite.ursai2pahomqtt.aix
完整示例项目：
mqtt_demo.aia
MQTT协议深度解析
1. 协议架构与通信模式
MQTT采用客户端-服务器架构，基于发布/订阅（Publish/Subscribe）模式实现消息传递：
grap...
How to display count of notifications in app launcher icon [duplicate]
...Count = 1;
ShortcutBadger.applyCount(context, badgeCount);
It includes a demo application that allows you to test its behavior.
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Sticky sidebar: stick to bottom when scrolling down, top when scrolling up
...re you have the code of a very basic example that I prepared and a working demo to see the result.
/*!
* Sticky-kit
* A jQuery plugin for making smart sticky elements
*
* Source: http://leafo.net/sticky-kit/
*/
$(function() {
$(".sidebar").stick_in_parent({
offset_top: 10
...
What does AngularJS do better than jQuery? [closed]
...ML, so you let the DOM worry about manipulating itself (so to speak). I'll demonstrate with a simple example.
This is the markup we want to use. I gave it an intuitive name.
<div rotate-on-click="45"></div>
First, I'd just like to comment that if we've given our HTML this functionali...
Bootstrap 3 modal vertical position center
...($(this).outerWidth() / 2);
}
});
});
You can find a working demo here with Bootstrap 3.0.3: http://cdpn.io/GwvrJ
EDIT: I recommend using the updated version instead for a more responsive solution: http://cdpn.io/mKfCc
Update (30/11/2015):
function setModalMaxHeight(element) {
this...
100% width Twitter Bootstrap 3 template
...e layout (not 100%) by wrapping everything inside a col-lg-12 (wide layout demo)
Update for Bootstrap 3.1
The container-fluid class has returned in Bootstrap 3.1, so this can be used to create a full width layout (no additional CSS required)..
Bootstrap 3.1 demo
...
Ruby custom error classes: inheritance of the message attribute
...E: The second strategy below uses the rails pretty string methods, such as demodualize, which may be a little complicated and therefore potentially unwise to do in an exception. You could also add more arguments to the method signature, should you need.
Overriding #to_s Strategy not #to_str, it wo...
What are the advantages of using a schema-free database like MongoDB compared to a relational databa
...ead more about it and play with it to get a better idea. Here's an online demo:
http://try.mongodb.org/
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How to secure an ASP.NET Web API [closed]
...th the same signature with the previous request, it will be rejected.
The demo code is put as here:
https://github.com/cuongle/Hmac.WebApi
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Java GUI frameworks. What to choose? Swing, SWT, AWT, SwingX, JGoodies, JavaFX, Apache Pivot? [close
...tation that helps you getting started. Most of the examples come with live demos (Note: You must have Java enabled in your web browser; this is a security risk) in the web page, so you can see the code and the resulting application side by side.
In my experience, more effort goes into code than int...