Android RefreshLayout implements pull-up refresh drop-down loading and data De duplication list pages

Add the following dependencies to build.gradle of app in the project: //RefreshLayout implementation 'com.scwang.smartrefresh:SmartRefreshLayout:1.1.0' implementation 'com.scwang.smartrefresh:SmartRefreshHeader:1.1.0' //glide is used to load pictures in item implementation 'com.github.bumptech.glide:gl ...

Posted by notaloser on Sat, 08 Feb 2020 06:16:24 -0800

How to configure Tomcat 9.0 in Maven

The default version of Tomcat used in Maven is 6.0, which is not applicable in many development applications. The commonly used Tomcat plug-ins on the Internet are Tomcat 7-maven-plugin version 2.2, 3.0-r1655215 of tomcat8-maven-plugin (this version needs to be downloaded on the image server, and the specific configuration is as follows) Add ...

Posted by prinzcy on Sat, 08 Feb 2020 06:10:09 -0800

activiti global process listens to ActivitiEventListener, which realizes listening to different types of events. It is very convenient without configuring task listening in acitivit

If we want to configure monitoring for tasks, it's the normal way One by one configuration, it's more troublesome. Now use ActivitiEventListener to listen to global events, judge different event types, and then execute different business logic. 1. Define event handler interface Using interfaces to define uniform conventions public interface Eve ...

Posted by rd2010 on Sat, 08 Feb 2020 06:07:21 -0800

Automatic test model of learning notes

Modular instance The code is shown as follows in mailbox 126: from selenium import webdriver driver = webdriver.Firefox() driver.implicitly_wait(10) driver.get("http://www.126.com") #Land driver.find_element_by_link_text("Password login").click() #Find the frame layer where the user name and password ...

Posted by Abz on Sat, 08 Feb 2020 02:30:52 -0800

Android - mixed use of ViewPager and Fragment

ViewPager is often used to connect fragments. It is very convenient to manage the life cycle of each page. Using ViewPager to manage fragments is a standard adapter implementation. The most commonly used implementations are fragmentpager adapter and fragmentstatepager adapter. By adding a ViewPager to t ...

Posted by jcrensha627 on Fri, 07 Feb 2020 07:01:16 -0800

In Django forms, how do I set a field to read-only (or disabled) so that it cannot be edited?

In Django forms, how do I make fields read-only (or disabled)? When creating a new entry using a form, all fields should be enabled - however, some fields must be read-only when the record is in update mode. For example, when creating a new Item model, all fields must be editable, but when updating records, is there a way to disable the ...

Posted by Tonka1979 on Fri, 07 Feb 2020 00:42:47 -0800

RabbitMQ learn the basic knowledge of three message queues

1, Basic knowledge (1) Provider Message producer is the procedure of message delivery. (2) Consumer Message consumers are message receiving programs (3) Messaging when message queuing is not used (4) Message passing method after using message queue (5) What is message queuing A queue is like a warehouse ...

Posted by corporateboy on Wed, 05 Feb 2020 05:46:48 -0800

How to quickly build a Spark distributed architecture for big data

Build our Spark platform from scratch 1. Preparing the centeros environment In order to build a real cluster environment and achieve a highly available architecture, we should prepare at least three virtual machines as cluster nodes. So I bought three Alibaba cloud servers as our cluster nodes. ...

Posted by knelson on Tue, 04 Feb 2020 23:47:57 -0800

MyBatis interface binding and multiparameter

Article Directory MyBatis Interface Binding Scheme and Multi-parameter Passing map mode for multiparameter transfer Interface Binding Interface for multiparameter delivery MyBatis Interface Binding Scheme and Multi-parameter Passing In addition and deletion checks of MyBatis, it is found that ...

Posted by TRB on Tue, 04 Feb 2020 19:39:38 -0800

DrawerLayout sideslip and NavigationView use and stepping on the pit

First, let's go on the renderings. After all, there is no renderings. I don't know if it's the effect you want. When I see half of them, I find they are not very annoyingAdd dependency implementation 'com.android.support:design:28.0.0' Use in layout <?xml version="1.0" encoding="utf-8"?> < ...

Posted by Simon180 on Tue, 04 Feb 2020 06:22:19 -0800