Tell me about how to use cameras and albums in Android

Many APP apps have user avatars, which allow users to instantly take a beautiful self-portrait by calling their camera, or open an album to pick a picture of their heart as their avatar. 1 Call camera Layout file: <?xml version="1.0" encoding="utf-8"?> <LinearLayout xmlns:android="http://schemas.android.com/apk/ ...

Posted on Sat, 11 May 2019 23:40:08 -0700 by cwiddowson

Python crawler and data analysis crawler skills: urlib library, xpath selector, regular expression

Column catalogue: Python crawler and python teaching video of data analysis, Python source code sharing, Python Python crawler and basic data analysis tutorial: Python grammar, dictionary, tuples, lists Advanced tutorials on Python crawlers and data analysis: file manipulation, lambda expressions, recursion, yield generator Python crawler and d ...

Posted on Sat, 11 May 2019 20:58:44 -0700 by culprit

Navigation Internal Navigation of Jetpack_Architecture

I. Preface Navigation is part of the Jetpack library about architecture modules for internal navigation. Two, pay attention to Need Android Studio version 3.2 or more Navigation, preferably only for page hops between fragment s, can be attempted for billing activity applications. File: https://developer.android.google.cn/ ...

Posted on Sat, 11 May 2019 13:31:45 -0700 by Isomerizer

Android Group English Reading Notes - Chapter 12: New features of Android 5.X

Chapter XII Catalogue 12.1 Preliminary Android5.X UI Design Morphological simulation of 12.1.1 materials 12.1.2 More realistic animations Use of 12.1.3 large color blocks 12.2 Material Design Theme 12.3 Palette 12.4 Views and Shadows 12.5 Tinting and lipping 12.5.1 Tinting (Coloring) 12.5.2 Clipping ...

Posted on Sat, 11 May 2019 10:55:40 -0700 by akmalsiddique

Solutions for parsing word formulas (different solutions for office insertion and wps insertion)

There is a need in the company's project these days to import mathematical formulas. For word, the inserted formula xml format needs to be converted to mathML and displayed by using the plug-in MathJax. For the inserted formula of wps, it is a wmf picture that can't be displayed on the page, so the idea is to convert wmf into png picture. There ...

Posted on Sat, 11 May 2019 08:28:07 -0700 by madolia

Shared Preferences Development and Cache Mechanism Analysis Using Three-point+Color Platform

Q1157880099 Source Address: haozym.com Storage data, very simple and fast, we will analyze this below. I. Basic UseEncapsulating Tool Classes for Convenient Call class SpUtils{private val context:Context=MyApplication.instance()private val sp:SharedPreferences=context.getSharedPreferences(KEY_SP,Context.MODE_PRIVATE) fun putString(key:String,v ...

Posted on Sat, 11 May 2019 06:24:30 -0700 by dlebowski

[Config] Class library reads its own configuration file and extends it

In our projects, we usually use a unified project file configuration, and all configurations and custom fields are written in a web.config or App.config file. Normally, we don't find any problems. It's true that there's no problem in writing this way, but if we write more, we will look bloated. And if the other parts of your project are not th ...

Posted on Sat, 11 May 2019 02:49:00 -0700 by future_man

Spring Core - String to Entity Conversion

Generally speaking, a system consists of three parts: Execution procedures: mainly responsible for processing business logic, docking user operations. Internal data: Data nested in source code to guide program operation. External data: business data, external configuration data. Internal data itself is part of the program, and in Java i ...

Posted on Sat, 11 May 2019 01:41:59 -0700 by project18726

SpringBoot+MyBatis Crater Process of DB Data Source (2) Manual Configuration of Data Source and Loading Mapper.xml Scanning

SpringBoot+MyBatis Crater Process of DB Data Source (2) Manual Configuration of Data Source and Loading Mapper.xml Scanning Original articles, copyright holder, unauthorized system reprint     After Tucao, it should be changed. This way can be used as a transitional way. 1. Environmental description Initial use of spring boot, limited time, ne ...

Posted on Sat, 11 May 2019 00:23:36 -0700 by GOKU

Spring Annotations Thematic Series

Spring Annotation Application--Registration of IOC Container Bean Components This is a series of articles on Spring Annotations. This series of articles is suitable for Spring beginners or principle beginners. The small edition will carry out enterprise-level practical application explanations and spring source code follow-up under this series ...

Posted on Fri, 10 May 2019 20:33:32 -0700 by kevin_newbie