How the Flutter system implements the ExpansionPanelList

Laomeng Guide: the Flutter component has a big feature, that is, many complex components are assembled by one small component. Today, I'll talk about how to realize the ExpansionPanelList of the system. Before understanding the ExpansionPanelList implementation, let's first understand the MergeableMaterial, which shows multiple mergeablemate ...

Posted on Tue, 05 May 2020 15:18:22 -0400 by slushpuppie

qq third party login code tears

In the past, the project asked me to add a third party to log in. In order to avoid trouble, I will fill in the main steps this time. Here I use oauth2.0 of the official website, But just now I looked at the Internet. Yesterday on the official website, I said that it seems that the path of using url spell will be stopped, but I still published ...

Posted on Tue, 05 May 2020 09:14:59 -0400 by Shaun13

The first stage of JD actual combat

The code of index.html is as follows: <!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>JD.COM</title> <link rel="stylesheet" href="css/base.css"> <link rel="icon" href="favicon.ico"> </head> <body> <!--nav start--> &l ...

Posted on Tue, 05 May 2020 06:34:26 -0400 by spdwrench

Get data + play source through QQ music interface

Recently, I am learning to make a web mobile music player. Because I don't want to make a database to store data, I am learning to get some data from the QQ music interface If other data is normal, but can't play, you can try this I found two useful sources yesterday. I hope they can give some help to like-minded friends It's used here songmi ...

Posted on Tue, 05 May 2020 06:21:53 -0400 by 9902468

Test the query efficiency of mapping Hbase table to Hive table

1, Preparation: 1. Write a program to write 10 million pieces of data into the Hbase table; 2. Map the corresponding Hbase table to Hive table.   Execute the following command in Hive's shell hive> CREATE EXTERNAL TABLE IF NOT EXISTS t_hbase_person_his10(id string, NAME String, salary string,START_DATE string,END_DATE string) ST ...

Posted on Tue, 05 May 2020 00:24:07 -0400 by Hebbs

Using canvas to realize mouse following effect

Recently in my study, I have seen the use of canvas to achieve various effects, and I have also made a copy of it. Because of the study of vue and es6, I decided to use the new features of vue and es6. Don't talk too much. First, look at the effect. Let's create one step by step. Step 1: create html to join canvas <template> <div c ...

Posted on Mon, 04 May 2020 17:28:16 -0400 by Skepsis

Java learning note 21 (String class supplement: regular expression)

Just like the re module of python, but there are some differences between Java and Python's regular expressions. For details, please refer to other articles on the Internet: Function: it can be used to verify a string, such as verifying user name, password format, mailbox, etc Example: "[0-9] {6,Twelve}" matching rule: 6 to One 2 digi ...

Posted on Mon, 04 May 2020 11:25:44 -0400 by Sirus121

React navigation 5.0 Series III: the use of Drawer navigation

First of all, I wish you all a happy youth day and May Day holiday. In the previous series of articles, we learned about the use of stack navigation and tab navigation in the latest version of 5.0. Today, we'll take a look at the use of drawer navigation. React Navigation5.0 series I: the use of stack navigator React navigation 5.0 Series II: t ...

Posted on Mon, 04 May 2020 10:10:02 -0400 by aboyd

IOS fingerprint / face recognition, TouchID/FaceID verification

Are you still browsing a lot of documents to develop TouchID/FaceID recognition? Use YZAuthID Only one callback method is needed to easily realize the verification and identification function of fingerprint / face ID. this project supports Pods for project construction, and you can go to https://github.com/micyo202/YZAuthID Download the source ...

Posted on Mon, 04 May 2020 08:31:56 -0400 by mmarif4u

Alipay payment mobile phone browser H5 payment

Preface Alipay payment - sandbox environment use Alipay payment - Alipay PC terminal scan code payment Alipay payment mobile phone browser H5 payment This article Mobile phone browser payment, users install Alipay APP, mobile phone website payment interface will default call Alipay wallet payment, then run the official Demo test. This develo ...

Posted on Sun, 03 May 2020 17:56:22 -0400 by alexislalas