• A simple example of using Android’s Scrollview (with demo)


    1. Vertical scroll: Scroll Create a new application: Do an experiment on the layout file of mainactivity. Now, after setting buttons 1 and 2, there are still some spaces left Set another button 3 to get him out of the screen: Now to run the program, you can’t slide or see the button 3. How […]

  • Processing of layout parameters in Java Tapestry5


    Copy codeThe code is as follows: <?xml version=”1.0″ encoding=”UTF-8″?> <!DOCTYPE html PUBLIC “-//W3C//DTD XHTML 1.0 Transitional//EN” “http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd”> <html xmlns:t=”http://tapestry.apache.org/schema/tapestry_5_0_0.xsd”> <head> <meta name=”keywords” content=”${ks}”> <meta name=”description” content=”${desc}”> <title>${title}</title> </head> <body > <t:body/> </body> For example, when using the template page above, you want to change the title, keywords and description dynamically.Add the following code in the […]

  • JavaScript, CSS layout problem sorting (vertical and horizontal center)


    Source code link codesandboxJS code: parent package app export default function App() { return ( <div className=”Parent”> <div className=”App”> <h1>Hello CodeSandbox</h1> <h2>Start editing to see some magic happen!</h2> </div> </div> ); } Several realization methods of center Method 1, using margin: Auto to achieve .Parent { height: 500px; width: 500px; border: 1px solid black; } […]

  • CSS static, flow, adaptive, elastic, responsive layout


    Briefly summarize the understanding of CSS layout: Static layout: PX is used to set the width and height of elements; Flow layout: the width of the child element is mainly set by%. The feature is that the screen is too large or too small to display the child element, but the relative layout of the […]

  • Window mechanism of Android


    preface Hello!I am an ape who cultivates immortals. Welcome to read my article. Windows, readers may know more about windows. In Windows system, we can run multiple windows at the same time, each window represents an application. But it seems that there is no such thing on Android, but readers can immediately think that there […]

  • Example of GridLayout implementation method for Android calculator


    This paper describes the implementation method of GridLayout for Android calculator. The details are as follows: Operation effect: Demo download address: https://github.com/LonglyWolf/Calculator Or click hereDownload from our website。 Button layout implementation: A LinearLayout nests three textviews, and the bottom part displays the current formula. Above is the previous formula. GridView grid layout button <?xml version=”1.0″ […]

  • Getting started with new HTML5


    This article was created and launched by the technical team of grape city Please indicate the source of Reprint:Official website of grapevineGrapevine provides professional development tools, solutions and services for developers to enable them.   The development of HTML5 has changed the trend of Internet technology, and front-end technology is still popular, so front-end technology […]

  • Vue to achieve studio management background (1): mouse drag and drop to change the window size


    A series of articles: Vue to achieve studio management background (1): mouse drag and drop to change the window size Vue to achieve studio management background (2): slot to achieve tab tab switching effect, free to fill content Realizing studio management background with Vue (3): supporting multilingual internationalization (vue-i18n) Recent revision of rxeditor, the revision […]

  • 06 CSS3 layout – Part 1 (front end must master)


    The following are the main referenceshttp://www.ruanyifeng.com/blo…andhttps://developer.mozilla.org…Two articles. If you want more details, you can take a look at these two articles. One day, Mirs rose in the same wind and soared up to 90000 Li! Study together, progress together! CSS layout The traditional scheme is based on the boxed model and relies on display attribute […]

  • The use of recyclerview


    target It was built some time agoA simple and easy to use picture upload component with comprehensive functionsNow let’s show the uploaded images to the app in the form of image set. For the sake of user experience, the [infinite] scrolling mode is adopted for loading new pictures. On Android platform, we prefer recyclerview component. […]

  • All you want to know about the bootstrap grid system is here


    Bootstrap framework is one of the most popular front-end frameworks. Bootstrap is powerful, easy to learn, and very suitable for practical application scenarios. But it contains a lot of content, novices often can not quickly master. Next, let’s make a brief summary of the bootstra grid system What is the definition of bootstrap grid system? […]

  • Mobile layout interview questions: a comprehensive survey of your CSS skills (middle part)


    preface Due to the rapid development of mobile Internet, now basically no front-end said that they only develop the PC end, I don’t care about the mobile end. Even a lot of front end work is mainly to develop mobile terminals, because mobile terminals are all kinds of content: WeChat applet, Alipay applet, Jingdong applet, […]