Android uses SQLite to store data usage example

This article gives an example of how Android uses SQLite to store data. Share with you for your reference, as follows:

Generally, the data storage function is often used in the development program. For example, when using Delphi to develop the program, the INI file that stores the simple settings of the program sometimes needs to store simple settings in c# development. Individuals are generally stored in XML and have also been stored in ini, but they are not as convenient as XML, so these are simple data storage functions, This kind of file storage is also supported in Android, but now we mainly talk about using SQLite to store data. SQLite is a cross platform database and a single file type, such as the most commonly seen access database, but it has better platform support than access and supports paging. Now it is mainly used for embedded development.

During the development process, you can directly declare database objects for storage management. The code is as follows:

This method requires us to deal with more content, which is not very convenient. Just like the program we developed c# uses sqlhelper, a similar class is provided in the Android platform:

Classes such as sqliteopenhelper

We can complete our operations by implementing this class, which is simpler and more efficient:

The code is as follows:

There is only a simple writing here, not too many methods. This is just a guide. You can extend this class, which is more convenient to use.

Here is a simple call:

Here is just a simple reference! Welcome criticism and correction!

More readers interested in Android related content can view the special topics of this site: summary of Android operating SQLite database skills, summary of Android database operating skills, summary of activity operating skills of Android programming, summary of Android file operating skills, summary of SD card operating methods of Android programming development, introduction and advanced tutorial of Android development , summary of Android resource operation skills, summary of Android view skills and summary of Android control usage

I hope this article will help you in Android programming.