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I. Brief Introduction As shown in the following figure, according to the way the interface is written, it can be divided into traditional layout and new layout. Linear layout: ** is the most commonly used layout in demo practice. It can be divided into two types: horizontal and vertical, that is, to set its attribute orientation: "vertic ...

Part I About Highcharts.js Chart Library: 1. Introduction: Highcharts is a chart library written in pure javascript, which can add interactive charts to Web sites or Web applications. Now the latest official version is API document updated to 5.0.7. 2. Chart types are abundant: 1 Diagram ...

uniApp Native Navigation Bar uni-app native navigation bar can also implement some top custom buttons + search boxes, just do some configuration in page.json. Setting up app-plus, dcloud platform makes a detailed description of app-plus: app-plus configuration However, for the time being, H5 and App are supported, and small programs are not su ...

Links to the original text: https://my.oschina.net/gal/blog/200185 This job is mainly to investigate the use of SQLite, get the information of mobile contacts (name, cell phone number, ...

LED Operation of Quanzhi A33 Driver Development I. Overall description II. Notes 3. Implementing led driver 1. Source files 2. Makefile file file IV. Application Programs for Implementing Testing Fifth, schematic diagram I. Overall description _The development board used in this time is vstar2 ...

GLSurfaceView configuration First determine the version of opengles used, then set the specified renderer, and finally display it on Activity. Note that in Activity's life cycle function, you control the start and pause of GLSurfaceView rendering. public class MainActivity extends AppCompatActivit ...

Add animation to the list using RecyclerView and Layout Animation Bai Shixiu'er Collection was transferred from May to 14, 2018 Report Here's how to use RecyclerView and Layout Animation to add animation to the list. There are three steps: Add animation to list items Define Layout Animation with Animation of List Items RecyclerView Appl ...

android's manipulation of files under asset and raw There are two kinds of resources in Android, one is compilable resource file under res. This resource file system automatically generates the ID of the resource file in R.Java, and the access is very simple. It only needs to call R.XXX.id. The secon ...

import java.security.Key; import javax.crypto.Cipher; import javax.crypto.SecretKeyFactory; import javax.crypto.spec.DESedeKeySpec; import javax.crypto.spec.IvParameterSpec; /** * 3DES Encryption Tool Class * * @author liufeng * @date 2012-10-11 */ public class Des3 { // secret key private final static ...

Have a cup of coffee and relax! Summary IntentService uses Step 1: Define the IntentService class and override onHandleIntent Step 2: List file registration Step 3: Open Services Step 1 class SIntentService : IntentService("SIntentService") { override fun onCreate() { Log.e("SInt ...