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Introduction to SharedPreferences SharedPreferences is a data storage method of android. xml is stored in memory in the form of key value pairs. Files are stored in the / data / data / / shared ﹤ prefs directory. SharedPreferences Initialization getSharedPreferences(name,mode) The parameters name and mode represent ...

Preface With the release of spring boot2.0. The API interface of the project team has considered the transformation to spring boot. We always use mybatis as the underlying interface, so in this article, I specially practiced the integration of mybatis in spring boot.   1, Preparations 1,pom.xml   1 <dependencies> 2 &lt ...

In order to facilitate local development, testing and production packaging are occasionally involved. The configuration of each environment is different. Configuration files of multiple environments need to be configured to avoid having to modify the configuration files when packaging The default configuration file of the SpringBoot project is ...

Practice to get real knowledge, do the code! In the drawing process of Android View, in the onLayout() method, the child view will call the layout() method to complete its own layout. We can change the parameters of view layout() to achieve the sliding effect of view! 1. Implementation steps 2. Effect 2.1. La ...

When doing Android development, we must pay attention to that the main thread cannot change the UI interface. If there is a crash when the program is running, and if there is no obvious syntax error, please check whether there is a conflict or crash in your own process. If there is a connection with the background, that is, when the request is ...

MathJax is an open source JavaScript display engine for LaTeX, MathML, and ASCII math representations for all modern browsers. Display MathML MathML is a mathematical markup language. It is a standard based on XML (a subset of Standard General Markup Language), which is used to write mathematical symbols and formulas on the Internet. Some brows ...

Springboot is based on the url suffix Return json or xml; Returns html based on the suffix name. Author: liuren Copyright notice: This is an original article, following CC 4.0 BY-SA copyright agreement. Please attach the original source link and this notice for reprint. Initializing the Springboot project 1, pom.xml package introduced first ...

Analysis example Startup class Application, using ClassPathXmlApplicationContext to load xml files /** * @author jianw.li * @date 2020/3/16 11:53 PM * @Description: TODO */ public class MyApplication { private static final String CONFIG_LOCATION = "classpath:application_context.xml"; private static final String BEAN_NAME = "hello"; ...

The requirements are as follows. There are already generated good spatial data, including date, hour, longitude, latitude, number of people. Use GeoServer to generate heat map. This article uses the PostgreSQL10 database and has added PostGIS support. Create table create table table_test( day varchar(8), hour int, lon nu ...

[Android] [Android] custom fillet image. You can set whether any corner is fillet in xml This blog has been included in my android development summary - Click [Android development summary] This blog has a reference blog[ android customize a fillet ImageView] Compared with the original blog, this blog has the following imp ...