android sqlite encryption

Android SQLite database usage example For a brief introduction, mainstream mobile devices such as Android and iPhone all use SQLite as the storage engine for complex data. When we develop applications for mobile devices, we may need to use SQLite to store a large amount of d

The introductory guide to using the SQLite database in Android is intended to be shared with you in the following sections, 1, what is SQLite 2. Using SQLite in Android One, what is SQLite

Use SQLite database in android SQLite database with its lightweight, small size and other characteristics, so that it is widely used in development, in the previous blog I also introduced the use of SQLite database in Cocos2d-x, this blog is to introduce the use of SQLite da

About SQLite SQLite is an extension of the embedded SQL Database engine SQLite (SQLite embeddable SQL DB Engine). SQLite is an implementation of the embedded SQL database engine small C language library (c library), implemented a stand-alone, embeddable, 0-configured SQL da

Preface SQLite is a lightweight small database, although relatively small, but the function is comparatively perfect, some common database basic functions also have, in the current embedded system to use the database is more, because it occupies very little system resources. Android system is no exception, but also the use of SQLite, this section of the study in

SQLite is a very popular embedded relational database. It is light-loaded, fast, and open-source. In Android, runtime provides SQLite, so we can use SQLite, and it is a complete set of SQLite. SQLite provides SQL interfaces, which

final String create_tbl = "CREATE table logtable" + "(_id integer primary key autoincrement,name Text,url t Ext,desc text) ";//sqlitedatabase??? Private Sqlitedatabase Db;public DBHelper (context context) {Super (context, db_name, NULL, 2);} @Overridepublic void OnCreate (Sqlitedatabase db) {db.execsql (CREATE_TBL);} //?????? public void Open () {db = Getwritabledatabase ();} @Overridepublic void Onupgrade (sqlitedatabase db, int oldversion, int newversion) {//TODO auto-generated method stub}//

SQLite is a very popular embedded relational database, light load, fast, and open source. In Android, runtime provides SQLite, so we can use SQLite, and is the complete sqlite. SQLite provides a SQL interface, just like a normal d

When data is inserted in SQLite, a default statement is a transaction, and disk operations are performed on every piece of data. If you need to execute SQL statements frequently, you can enable transactions explicitly to improve efficiency. Database. begintransaction (); // manually set the start transaction // Data insertion operation cycle Database. settransactionsuccessful (); // sets whether the transaction is successfully processed. If this

Li huaming himiOriginal, reprinted must be explicitly noted:Reprinted from[Heimi gamedev block]Link: http://www.himigame.com/android-game/329.html Many kids shoes say that after my code is run, clicking home or back will cause a program exception. If you have encountered this, you certainly haven't carefully read the himi blog, in article 19th, himi specifically wrote about the causes and solutions of these errors. I have added my remarks on this blo

open, but when the Open fails, it will continue to try to read-only Open the database. No error is reported. ========================================================== ========================================================== ====================================== The following is an example of a listview with SQLite database as adapter (which can also be used as a Address Book tool) As follows: /* Main activity * @ Author: conowen * @ Date: 12.

SQLite is a lightweight database designed for embedded devices. It has only five data types: Null: NULL Integer: integer Real: Floating Point Number Text: String BLOB: Big Data In SQLite, the Boolean and date types are not specifically designed, because the boolean type can replace true and false with integer 0 and 1, the date type can have text, real, and integer values in a specific format instead of disp

In this chapter, we are going to learn about the android database SQLite. We still take the previous chapter. For the migration of Tang Seng to westday, the three younger siblings have to kill monsters, so we have to make a summary, there is a count. Here we use SQLite to store the number of monsters killed by each hacker. OK, go to main. XML Three buttons are

Today, let's summarize the application of SQLite database in Android system. First look at some of the database introduction:The SQLite database is an untyped database, which means that you can save any type of data to any column in any table, no matter what type the column is declared in when the table is create. Because SQL