The first time I get this requirement, the first idea is that all kinds of controls are nested + listen to solve the problem. Later, think about it, such a thing with so many controls is a little oversupply, so it is customized.
Frontier: Because most programmers are bringers because of their characteristics and nature of work. Hereby, this a ...
Posted on Tue, 25 Jun 2019 11:32:22 -0700 by phpnew
1. Introduction to CSS3
Learning website: http://css.doyoe.com/
Principle of Progressive Enhancement
For example, rounded corners and box-shadow
2. Selector section
Choose the first five with nth-child(-n+5)
His rule is in accordance with the expression kn+b, nth-child(5-n) is ...
Posted on Mon, 24 Jun 2019 17:10:34 -0700 by smixcer
An Android app was previously made with one feature: users record videos and save them locally, then they can view videos recorded in the current APP and perform some upload or delete operations.
There are two main functions here. First, you record the video and then save it to a specific folder, which is used to store the videos ...
Posted on Mon, 24 Jun 2019 12:42:43 -0700 by shiny_spoon
Android Camera's Way to Explore: Start
Camera plays an important role in mobile phones. Whether it is two-dimensional code or photo recognition, it can not be separated from the camera. In this paper, Camera in Android will be comprehensively analyzed.
Authorization Town Building:
<uses-permission android:name="android.permission.CAMERA"/ ...
Posted on Sun, 23 Jun 2019 11:14:06 -0700 by kwstephenchan
1. Get ready to read the source code tools.
2. Introduction to the Functions of Main Classes
Activity Manager Services, referred to as AMS, is the core service of Android. It is mainly responsible for the starting, switching and scheduling of the four components in the system and the management and scheduling ...
Posted on Thu, 20 Jun 2019 12:52:00 -0700 by ChetUbetcha
The controller class must inherit the think Controller class to use:
class Index extends Controller
public function _initialize()
public function hello()
Posted on Thu, 20 Jun 2019 11:46:50 -0700 by codecontractor
Links to the project in codepen: https://codepen.io/lightforme/pen/XgRrxG
Due to the influence of security policy, the link of channel in codepen's iframe page will not jump after clicking. In the local project, there are some explanations on stack overflow: https://stackoverflow.com/questions/34426959/loading-the-facebook-api-in-jsfiddle
Posted on Wed, 19 Jun 2019 18:10:50 -0700 by smarlowe
PostgreSQL, PostGIS, Composite Index, btree_gist, Shared Bicycle
With the popularity of mobile Internet, spatial data has become the standard of most enterprise data, such as travel, express, etc.
Usually, the query of data will have location distance search, and it will also be accompanied by other attributes filtering, oth ...
Posted on Wed, 19 Jun 2019 15:27:21 -0700 by daniish
Several articles on the React technology stack have been shared before:
Making the Uber Mobile Web page version is not enough to achieve extreme performance.
Analyzing Twitter Front-end Architecture to Learn Complex Scene Data Design
React Conf 2017 Dry Goods Summary 1: React + ES next = _
React+Redux Create "NEWS EARLY" Single Page ...
Posted on Tue, 18 Jun 2019 18:31:52 -0700 by AmiraSan
Android Baidu Map (2): Baidu Location and Map Display Location PointsAndroid Baidu Map (3): Baidu Map Track and Layer Click Event Processing
Source address https://github.com/zhuhao Happig/BaiduMapApi
In this paper, Baidu positioning sdk api for detailed description, precautions, but also a brief talk about the positioning principle, the purpos ...
Posted on Mon, 17 Jun 2019 14:53:22 -0700 by rohithmr