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Original Link: https://my.oschina.net/wuhaoyu/blog/607832 As above, add a map and add it directly to the map layer. I set AnchorPoint at (0,0) to calculate coordinates. mapSprite = ...

/ Beginning/ Since the release of Wechat, the animation of the bottom navigation bar has always been enjoyed by developers, and with the update of the version, the animation of the bottom navigation bar has also been improving. Recently, in my spare time, I watched the bottom navigation bar animation of Wechat, and thought about the principle o ...

background In development, it is often necessary to write some field validation code, such as non-empty, length limitations, mailbox format validation, etc., which results in code full of if-else, which is not only quite lengthy, but also crazy. hibernate validator(Official Documents ) provides a set of relatively complete and convenient veri ...

Careful students can find that many websites will appear a graphics authentication code after multiple logins, or when submitting forms, or clicking to obtain mobile phone authentication code and other scenarios will have graphics authentication code. So what problems does Graphic Verification Code come up to solve? What is Graphic Verificati ...

Links to the original text: https://blog.csdn.net/u010936731/article/details/70599482/ Android Music Play Mode Switching - External Play, Hearing, Earphonehttps://blog.csdn.net/u010936731/article/details/70599482/ Scenario requirements In th ...

Directory Introduction 01. First look at the needs 02.There are several implementations 2.1 Use ViewPager 2.2 Use RecyclerView 03. Implement with ViewPager 3.1 Custom ViewPager 3.2 ViewPager and Fragment 3.3 Modify Sliding Distance Page Flipping 3.4 Modify sliding speed 04. Implement with RecyclerView 4.1 Customize LayoutManager 4.2 Add ...

A Brief Introduction to JMH What is JMH JMH is the abbreviation of Java Microbenchmark Harness. The Chinese meaning is roughly "JAVA microbenchmark suite". First, understand what a "benchmark" is. Baidu Encyclopedia defines it as follows: Benchmarking It refers to the quantitative and comparable testing of a certain perfor ...

(Horsehoneycomb technology original content, public ID: mfwtech) A study from Akamai found that after interviewing 1,048 online shoppers: About 47% of users expect their pages to load in two seconds. If the page load time exceeds 3 seconds, about 40% of users will choose to leave or close the page.   For a long time, in order to i ...

Preface Vertical centering is a common topic in CSS and is often mentioned during interviews.So today, let's talk about nine different ways of centering. Common flex, transform, absolute, and so on.There are also grid layouts for CSS3.There are also pseudo element methods, yes, you can read them correctly:: after and:: before can also achieve c ...

Spring Security Resolution (4) - Development of Short Message Logon When learning Spring Cloud, when encountering the related content of authorized service oauth, he always knows half of it, so he decided to study and collate the content, principle and design of Spring Security, Spring Security Oauth2 and other permissions, authentication-relat ...