Programmer Group

Official documents: https://www.thymeleaf.org/doc/tutorials/3.0/usingthymeleaf.html 1. Define template fragments Definition and reference fragments   In our pages, we often need to include parts in other templates, footers, titles, menus and so on... To do this, Thymeleaf needs us to define these parts, "fragments" for inclusion ...

Fragment Details (II) Fragment Details (II) 1. Basic concepts 1) What kind of ghost is it and what's its use? Answer: Fragment can make your app enjoy silky design. If your app wants to improve its performance substantially and reduce its memory usage, the same interface Activity takes up more memory than Fragment, and the response speed of Fra ...

Write in front: This document uses version 7.0, version 8.0 method name has been changed, it is recommended to see the official document, the overall business logic and principles have not changed. Official website In the process of android programming, we will write a lot of layout and click events. Simple and repetitive operations like i ...

I. What are reptiles? Web crawlers (also known as web pages) spider It is a kind of automatic grabbing according to certain rules. Web A program or script for information. If the Internet is compared to a large spider web, each node in the spider web has a lot of data. A crawler is like a small spider who finds the website thr ...

public class Person {       private String name;       private String password;       private String birthday;       private int age;          public void setName(String name) {           this.name = name.toUpperCase();  //User names are case-insensitive and uniformly capitalized       }              public  ...

Android 8.0 Settings Process Analysis and Change One, compared to Android Settings 7.0 As shown below, on the basis of 7.0, the new side-slip menu of 7.0 has been removed (maybe it feels like chicken ribs). Adding an additional level of page, the original category title into the first level of menu sub-items. The code archite ...

26. Asynchronous components When using asynchronous components in React, the core knowledge is two: How webpack loads other modules asynchronously: through require(['xxx'], function(module) {}); How to use the module loaded asynchronously in React: Refer to the normal way of using the module; [Asynchronous loading] For asynchronous load ...

There was an occasional error when using Fragment. Can't perform this action after onSave Instance State. It means that it can't be performed after onSave Instance State. This operation means commit(). It didn't pay much attention to it before. Later, I learned about this problem by looking at the source code. Here's an analysis of this proble ...

Recently, a project has been built using SpringBoot 2.X. Most of the interfaces need login checking, so we intend to use annotation + interceptor to implement it, and record the implementation process here.   First, the principle of implementation 1. Customize a comment @NeedLogin and add it to the interface method or class method if the ...

The last article talked about the basic functions and uses of Glide4.x. If you don't know Glide4, you can check out the previous article. Glide 4 Parsing Series (1): How to Use Glide Today's article is an analysis of Glide4 from the source point of view. The core of Glide's basic usage in the last article is just one sentence: Glid ...