Programmer Think

A Summary 1. Background of Comparable and Comparator Numeric data (byte int short long float double) is naturally comparable and sortable. String implements Comparable interface and can also compare size and sorting. There are many kinds of custom classes, and there is no common index for sorting. Therefore, it is necessary to establish a metho ...

Original address: React Forms: Using Refs Author: Loren Stewart Translator: Sprouting Proofreader: Little boy Translation | React form: Refs usage React provides two standard methods for getting values from <form> elements. The first approach is to implement so-called controlled components (see me). Articles published in blogs The s ...

During the project, I encountered the use of object arrays: Contact Interface, which requires partition display. If I store an array and then rearrange it every time I display, I find that there will be a computing delay. All of my partitions are first placed in a dictionary in a singleton class. When I needed to use the contact's interface to ...

Android Application Background Loading System Dynamic Wallpapers demand Customer demand is always confusing. Our application and system launcher are two forms of desktop that exist together. Customer demand that application must support system desktop wallpaper. Static wallpaper is easy to achieve for this requirement, but dynamic wallpaper is ...

There is such a syntax in the CSS3 version: @media mediatype and|not|only (media feature) {     CSS-Code;}  Recent beginners of css require various page-adaptive scenarios on both the device and the computer side.Naturally, this attribute comes to mind: @media, it took about an hour today to make an adaptive little demo, which is recorded ...

Notes 7-13 1. css 1. Background-related colors <style> body{ background-color: red; background-image: url("../pic/photo.jpg"); background-repeat:no-repeat; /*background-position: inherit;*/ } </style>   Background-color: Background color Background-image: Set the background image, you ...

  Android High Imitation Q QQ5.0 Side Slide Menu Effect Custom Control Invasion This article is from [Zhang Hongyang's blog] In the last blog, we realized that: Android Custom Controls Create the Simplest Side-Slide Menu in History Some brothers said after reading it, your sliding menu is out of date. ~QQ5.0's effect is not ...

Developed in Wechat, we can upload pictures using Wechat jssdk The idea is basically Pictures are selected by the phone, uploaded to the Wechat server, and added to the temporary material library (as if it had expired in three days). Then the server goes to the Wechat server and downloads the pictures to the local location. If you have you ...

write an article find follow news Summary of years of iOS development experience (2) 1. Setting UILabel row spacing NSMutableAttributedString* attrString = [[NSMutableAttributedString alloc] initWithString:label.text]; NSMutableParagraphStyle *style = [[NSMutableParagraphStyle all ...

The list in the previous project was IScroll, but there is a problem with IScroll: when the content is not full-screen, there is a way to pull down, so that the purpose of refreshing can not be achieved. [This is what I met in my work, specific examples of specific analysis, here is only a reference] The general example is as follows: <style ...