org.litepal.util

类 SharedUtil

java.lang.Object

org.litepal.util.SharedUtil

public class SharedUtil
extends java.lang.Object

LitePal used shared preferences a lot for storing versions and a lot of other necessary values. This utility helps LitePal save and read each key-value pairs from shared preferences file.

从以下版本开始:

1.0

构造器概要

构造器

构造器和说明
SharedUtil()

方法概要

限定符和类型	方法和说明
static int	getLastVersion(java.lang.String extraKeyName) Get the last database version.
static void	removeVersion(java.lang.String extraKeyName) Remove the version with specified extra key name.
static void	updateVersion(java.lang.String extraKeyName, int newVersion) Each time database upgrade, the version of database stored in shared preference will update.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

构造器详细资料

SharedUtil

public SharedUtil()

方法详细资料

updateVersion

public static void updateVersion(java.lang.String extraKeyName,
                                 int newVersion)

Each time database upgrade, the version of database stored in shared preference will update.

参数:

extraKeyName - Pass the name of the using database usually. Pass null if it's default database.

newVersion - new version of database

getLastVersion

public static int getLastVersion(java.lang.String extraKeyName)

Get the last database version.

参数:

extraKeyName - Pass the name of the using database usually. Pass null if it's default database.

返回:

the last database version

removeVersion

public static void removeVersion(java.lang.String extraKeyName)

Remove the version with specified extra key name.

参数:

extraKeyName - Pass the name of the using database usually. Pass null if it's default database.