Lab 2 Android Data Storage Instance Address Book

Lab 2 Android Data Storage Instance Address Book 1. Experimental Purpose (1) Skilled in UI interface design process and methods; (2) To further understand the establishment and operation of the SQLite database; (3) Skilled in Andriod database programming. 2. Experimental Environment (1) Hardware: PC, ot ...

Added by tippy_102 on Wed, 17 Jun 2020 04:20:28 +0300

ASP.NET Core file upload

Original text: ASP.NET Core file upload preface First blog post Introduced how to asp.net Core uses Redis and Protobuf for Session caching. This article is a small function used in the development process, how to do single file and multi file upload. If you think it will help you, you may as well click "recommend". cat ...

Added by bradleybebad on Mon, 25 May 2020 05:56:29 +0300

C ා data operation series - 7. EF Core navigation attribute configuration

In the previous article, I introduced the logic of relationship mapping in Entity Framework Core. The foreign key mapping of EF left in the previous article is not mentioned, that is, the relationship of one-to-one, one to many, many to one, many to many, etc. This article will give you a detailed analysis of how to set up these mappings. 1. Re ...

Added by imawake on Sun, 17 May 2020 08:59:50 +0300

Android Project Actual Series - based on Bosch Valley profile

Please be patient to read this module because of its large content and length. The profile module is divided into two parts [x] personal data [x] Data Modification 1. Personal Data 1. Profile interface (1) Create a profile interface Create a java class named UserInfoActivity in the com.buxuegu.activity package.Create a layout file name ...

Added by riddhi on Mon, 04 May 2020 23:33:23 +0300

Android advanced - using LitePal to operate database

Learn to use LitePal to operate database About LitePal: LitePal is an Android open source library, which makes it very easy for developers to use SQLite database. You can do most of the database operations without writing a single SQL statement, including creating tables, updating tables, constraining operations, ...

Added by freeloader on Wed, 01 Apr 2020 21:23:32 +0300

Android content provider in 2020

Junior to intermediate 1. What is the content provider? Content Provider is mainly used to realize the function of data sharing between different applications. It provides a complete set of mechanism, which allows one program to access the data in another program, and also ensures the security of the accessed data. Currently, using content pro ...

Added by lady_bug on Fri, 17 Jan 2020 12:51:11 +0200

Android Month 2_Day9_Sqltie database

Android Month 2_Day9_Sqltie database Introduction to SQLite database Database usage and two core classes First, SQLiteOpenHelper II. SQLiteDatabase Batch processing of data using transactions Introduction to SQLite database 1. Lightweight database integrated in Android system 2. Characteristic ...

Added by Arnerd on Mon, 12 Aug 2019 16:01:54 +0300

Don't understand the four components yet?Take you through ContentProvider articles

Your favorite buddies are welcome to pay attention. I will share Android knowledge points and analysis regularly, and keep updating BATJ interview topics. You are welcome to come to discuss and communicate. If you have good articles, you are welcome to contribute. 1. What is ContentProvider ContentProvider is the interface that your own APP op ...

Added by ledtear on Sat, 20 Jul 2019 23:16:52 +0300

Data Storage in Android Development

1. File Storage (1) Store data in a file The Context class provides the openFileOutput() method, with the first parameter being the file name (not including paths, all files are saved to/data/data//files/) and the second parameter being the operation mode of the file, MODE_PRIVATE being the default mode, overwriting the contents of the fil ...

Added by dcampbell18 on Fri, 12 Jul 2019 19:51:43 +0300

Using Realm as Local Storage in Android

Android platform has many orm frameworks that can store data locally, such as ormlite, green Dao, SugarORM and so on. These orm frameworks are basically sqlite-based. The database Realm I'm going to introduce today is a solution to replace sqlite. It has its own database storage engine. It's lighter and faster than sqlite. Most importantly, i ...

Added by mazman13 on Thu, 27 Jun 2019 01:37:50 +0300