Programmer Group

Introduction: ARKit is undoubtedly a bright spot at the WWDC 2017 conference held this morning. Apple added ARKit to its own development components, which reduced the difficulty of augmented reality development, but improved the effect a lot, and combined with its own hardware, it eventually produced a very good visual effect. This also s ...

Original articles, reprinted please indicate the source: Establishment of NanoHttpd Android HTTP Sever:http://www.jianshu.com/p/ef6279a429d4 This article originated from the brief book, CSDN is an excellent platform, so it also appeared in CSDN. Preface Recently, I received a task to build an HTTP Server on my mobile phone for file shari ...

In the development of business system, the query, paging and sorting of table records are very common. In the development of Web, many powerful plug-ins can be used to meet the requirements and greatly improve the development efficiency. This article introduces bootstrap-table as a very famous open source form plug-in, which is widely used in m ...

The purpose of this paper is to generate the inverse document frequency of each word for a specific corpus. Then key words are extracted according to TF-IDF algorithm. For reprinting, please indicate the source: Gaussic (Natural Language Processing) . GitHub code: https://github.com/gaussic/tf-idf-keyword participle For the extraction of keywo ...

A brief introduction to Download Manager Download Manger is the download operation that android 2.3 (api level 9) started to provide to optimize the processing of long downloads. Download Manager handles Http/Https connections and monitors status changes and system restarts to ensure that each download task is completed smoothly. Download Mana ...

Note Notes The front-end of re-education is a column run by Cheng Shaofi (former head of mobile phone Taobao front-end) in Geek time. Reconstruct your front-end knowledge system 10 minutes a day The author mainly collates some key notes and insights of the learning process, complete can join the winter column to learn [original Winter voice], i ...

Yesterday, Doudong's LAMY pen was doing another activity, but when it was seen, it had already risen back to its original price. In a fit of anger, I wrote a JS script to automatically query the promotion information and notify me by micro-mail. Get ready data acquisition In data acquisition, we use Node.js to implement a crawler, and regularly ...

There are three main ways to implement custom attributes. Method 1: No namespace, no attrs.xml file. Get the attribute value by attrs.getAttributeResourceValue method Method 2: Use namespace instead of attrs.xml file. Get the attribute value by attrs.getAttributeResourceValue method Method 3: Use namespace and attrs.xml file. Get the attrib ...

What is the purpose? Why optimize log? Take two examples. When we encounter problems in development, we like to use log to help us analyze problems. Usually, we don't have the habit of deleting the log output code after solving the problems, so the problem comes. Others can also analyze your program's vulnerabilities based on the log informatio ...

Craving Snakes (https://wujian1994.github.io/...) Part HTML First we need an HTML page. <div class="container"> <ul class="oul" id="oul"></ul> </div> <div class="oper"> <p style="color:blue">Historically highest score:<span id="zuigao" style="color:#000">0</span></p> <p style ...