com.marshalchen.common.commonUtils.fileUtils

类 PreferencesUtils

java.lang.Object

com.marshalchen.common.commonUtils.fileUtils.PreferencesUtils

public class PreferencesUtils
extends java.lang.Object

PreferencesUtils, easy to get or put data

Preference Name
• you can change preference name by PREFERENCE_NAME

Put Value
• put string putString(android.content.Context, String, String)
• put int putInt(android.content.Context, String, int)
• put long putLong(android.content.Context, String, long)
• put float putFloat(android.content.Context, String, float)
• put boolean putBoolean(android.content.Context, String, boolean)

Get Value
• get string getString(android.content.Context, String), getString(android.content.Context, String, String)
• get int getInt(android.content.Context, String), getInt(android.content.Context, String, int)
• get long getLong(android.content.Context, String), getLong(android.content.Context, String, long)
• get float getFloat(android.content.Context, String), getFloat(android.content.Context, String, float)
• get boolean getBoolean(android.content.Context, String), getBoolean(android.content.Context, String, boolean)

字段概要

字段

限定符和类型	字段和说明
static java.lang.String	PREFERENCE_NAME

构造器概要

构造器

构造器和说明
PreferencesUtils()

方法概要

方法

限定符和类型	方法和说明
static void	clearSharePreference(android.content.Context context)
static void	clearSharePreference(android.content.Context context, java.lang.String preferenceName)
static boolean	getBoolean(android.content.Context context, java.lang.String key) get boolean preferences, default is false
static boolean	getBoolean(android.content.Context context, java.lang.String key, boolean defaultValue) get boolean preferences
static boolean	getBoolean(android.content.Context context, java.lang.String preferenceName, java.lang.String key, boolean defaultValue)
static float	getFloat(android.content.Context context, java.lang.String key) get float preferences
static float	getFloat(android.content.Context context, java.lang.String key, float defaultValue) get float preferences
static float	getFloat(android.content.Context context, java.lang.String preferenceName, java.lang.String key, float defaultValue)
static int	getInt(android.content.Context context, java.lang.String key) get int preferences
static int	getInt(android.content.Context context, java.lang.String key, int defaultValue) get int preferences
static int	getInt(android.content.Context context, java.lang.String preferenceName, java.lang.String key, int defaultValue)
static long	getLong(android.content.Context context, java.lang.String key) get long preferences
static long	getLong(android.content.Context context, java.lang.String key, long defaultValue) get long preferences
static long	getLong(android.content.Context context, java.lang.String preferenceName, java.lang.String key, long defaultValue)
static java.lang.String	getString(android.content.Context context, java.lang.String key) get string preferences
static java.lang.String	getString(android.content.Context context, java.lang.String key, java.lang.String defaultValue) get string preferences
static java.lang.String	getString(android.content.Context context, java.lang.String preferenceName, java.lang.String key, java.lang.String defaultValue)
static boolean	putBoolean(android.content.Context context, java.lang.String key, boolean value) put boolean preferences
static boolean	putBoolean(android.content.Context context, java.lang.String preferenceName, java.lang.String key, boolean value)
static boolean	putFloat(android.content.Context context, java.lang.String key, float value) put float preferences
static boolean	putFloat(android.content.Context context, java.lang.String preferenceName, java.lang.String key, float value)
static boolean	putInt(android.content.Context context, java.lang.String key, int value) put int preferences
static boolean	putInt(android.content.Context context, java.lang.String preferenceName, java.lang.String key, int value)
static boolean	putLong(android.content.Context context, java.lang.String key, long value) put long preferences
static boolean	putLong(android.content.Context context, java.lang.String preferenceName, java.lang.String key, long value)
static boolean	putString(android.content.Context context, java.lang.String key, java.lang.String value) put string preferences
static boolean	putString(android.content.Context context, java.lang.String preferenceName, java.lang.String key, java.lang.String value)

从类继承的方法 java.lang.Object

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

字段详细资料

PREFERENCE_NAME

public static java.lang.String PREFERENCE_NAME

构造器详细资料

PreferencesUtils

public PreferencesUtils()

方法详细资料

putString

public static boolean putString(android.content.Context context,
                java.lang.String key,
                java.lang.String value)

put string preferences

参数:

context -

key - The name of the preference to modify

value - The new value for the preference

返回:

True if the new values were successfully written to persistent storage.

putString

public static boolean putString(android.content.Context context,
                java.lang.String preferenceName,
                java.lang.String key,
                java.lang.String value)

getString

public static java.lang.String getString(android.content.Context context,
                         java.lang.String key)

get string preferences

参数:

context -

key - The name of the preference to retrieve

返回:

The preference value if it exists, or null. Throws ClassCastException if there is a preference with this name that is not a string

另请参阅:

getString(android.content.Context, String, String)

getString

public static java.lang.String getString(android.content.Context context,
                         java.lang.String key,
                         java.lang.String defaultValue)

get string preferences

参数:

context -

key - The name of the preference to retrieve

defaultValue - Value to return if this preference does not exist

返回:

The preference value if it exists, or defValue. Throws ClassCastException if there is a preference with this name that is not a string

getString

public static java.lang.String getString(android.content.Context context,
                         java.lang.String preferenceName,
                         java.lang.String key,
                         java.lang.String defaultValue)

putInt

public static boolean putInt(android.content.Context context,
             java.lang.String key,
             int value)

put int preferences

参数:

context -

key - The name of the preference to modify

value - The new value for the preference

返回:

True if the new values were successfully written to persistent storage.

putInt

public static boolean putInt(android.content.Context context,
             java.lang.String preferenceName,
             java.lang.String key,
             int value)

getInt

public static int getInt(android.content.Context context,
         java.lang.String key)

get int preferences

参数:

context -

key - The name of the preference to retrieve

返回:

The preference value if it exists, or -1. Throws ClassCastException if there is a preference with this name that is not a int

另请参阅:

getInt(android.content.Context, String, int)

getInt

public static int getInt(android.content.Context context,
         java.lang.String key,
         int defaultValue)

get int preferences

参数:

context -

key - The name of the preference to retrieve

defaultValue - Value to return if this preference does not exist

返回:

The preference value if it exists, or defValue. Throws ClassCastException if there is a preference with this name that is not a int

getInt

public static int getInt(android.content.Context context,
         java.lang.String preferenceName,
         java.lang.String key,
         int defaultValue)

putLong

public static boolean putLong(android.content.Context context,
              java.lang.String key,
              long value)

put long preferences

参数:

context -

key - The name of the preference to modify

value - The new value for the preference

返回:

True if the new values were successfully written to persistent storage.

putLong

public static boolean putLong(android.content.Context context,
              java.lang.String preferenceName,
              java.lang.String key,
              long value)

getLong

public static long getLong(android.content.Context context,
           java.lang.String key)

get long preferences

参数:

context -

key - The name of the preference to retrieve

返回:

The preference value if it exists, or -1. Throws ClassCastException if there is a preference with this name that is not a long

另请参阅:

getLong(android.content.Context, String, long)

getLong

public static long getLong(android.content.Context context,
           java.lang.String key,
           long defaultValue)

get long preferences

参数:

context -

key - The name of the preference to retrieve

defaultValue - Value to return if this preference does not exist

返回:

The preference value if it exists, or defValue. Throws ClassCastException if there is a preference with this name that is not a long

getLong

public static long getLong(android.content.Context context,
           java.lang.String preferenceName,
           java.lang.String key,
           long defaultValue)

putFloat

public static boolean putFloat(android.content.Context context,
               java.lang.String key,
               float value)

put float preferences

参数:

context -

key - The name of the preference to modify

value - The new value for the preference

返回:

True if the new values were successfully written to persistent storage.

putFloat

public static boolean putFloat(android.content.Context context,
               java.lang.String preferenceName,
               java.lang.String key,
               float value)

getFloat

public static float getFloat(android.content.Context context,
             java.lang.String key)

get float preferences

参数:

context -

key - The name of the preference to retrieve

返回:

The preference value if it exists, or -1. Throws ClassCastException if there is a preference with this name that is not a float

另请参阅:

getFloat(android.content.Context, String, float)

getFloat

public static float getFloat(android.content.Context context,
             java.lang.String key,
             float defaultValue)

get float preferences

参数:

context -

key - The name of the preference to retrieve

defaultValue - Value to return if this preference does not exist

返回:

The preference value if it exists, or defValue. Throws ClassCastException if there is a preference with this name that is not a float

getFloat

public static float getFloat(android.content.Context context,
             java.lang.String preferenceName,
             java.lang.String key,
             float defaultValue)

putBoolean

public static boolean putBoolean(android.content.Context context,
                 java.lang.String key,
                 boolean value)

put boolean preferences

参数:

context -

key - The name of the preference to modify

value - The new value for the preference

返回:

True if the new values were successfully written to persistent storage.

putBoolean

public static boolean putBoolean(android.content.Context context,
                 java.lang.String preferenceName,
                 java.lang.String key,
                 boolean value)

getBoolean

public static boolean getBoolean(android.content.Context context,
                 java.lang.String key)

get boolean preferences, default is false

参数:

context -

key - The name of the preference to retrieve

返回:

The preference value if it exists, or false. Throws ClassCastException if there is a preference with this name that is not a boolean

另请参阅:

getBoolean(android.content.Context, String, boolean)

getBoolean

public static boolean getBoolean(android.content.Context context,
                 java.lang.String key,
                 boolean defaultValue)

get boolean preferences

参数:

context -

key - The name of the preference to retrieve

defaultValue - Value to return if this preference does not exist

返回:

The preference value if it exists, or defValue. Throws ClassCastException if there is a preference with this name that is not a boolean

getBoolean

public static boolean getBoolean(android.content.Context context,
                 java.lang.String preferenceName,
                 java.lang.String key,
                 boolean defaultValue)

clearSharePreference

public static void clearSharePreference(android.content.Context context)

clearSharePreference

public static void clearSharePreference(android.content.Context context,
                        java.lang.String preferenceName)