Android Data storage

Overview

The 1.android contains 5 of data storage methods:

Sharedpreferences stores data.

ContentProvider Storage

File storage

Sqllite Database Storage

Networked storage

Preference File DataBase These three ways correspond to the directory is:

/data/data/package Name/shared_pref

/data/data/package Name/files

/data/data/package Name/database

Simple data and configuration information, sharedpreference is preferred;

If Sharedpreferences is not enough, create a database;

Structured data, be sure to create a database, although this slightly annoying lock, but the benefits are endless;

Files are used to store files (that is, non-configuration information or structured data), such as text files, binaries, PC files,

multimedia files, downloaded files and so on;

Try not to create files;

If a file is created, if it is a private file or an important file, it is stored on-premises, otherwise it is stored in an external storage