android.os.Environment
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public class Environment extends Object
java.lang.Object
↳ android.os.Environment
类概述
提供访问环境变量.
摘要
常量
String
MEDIA_BAD_REMOVAL
在没有正确卸载SDCard之前移除了
String
MEDIA_CHECKING
正在磁盘检查
String
MEDIA_MOUNTED
已经挂载并且拥有可读可写权限
String
MEDIA_MOUNTED_READ_ONLY
已经挂载,但只拥有可读权限
String
MEDIA_NOFS
对象空白,或者文件系统不支持
String
MEDIA_REMOVED
已经移除扩展设备
String
MEDIA_SHARED
如果SDCard未挂载,并通过USB大容量存储共享
String
MEDIA_UNMOUNTABLE
不可以挂载任何扩展设备
String
MEDIA_UNMOUNTED
已经卸载
字段
public static String
DIRECTORY_ALARMS
public static String
DIRECTORY_DCIM
public static String
DIRECTORY_DOWNLOADS
public static String
DIRECTORY_MOVIES
public static String
DIRECTORY_MUSIC
public static String
DIRECTORY_NOTIFICATIONS
public static String
DIRECTORY_PICTURES
public static String
DIRECTORY_PODCASTS
public static String
DIRECTORY_RINGTONES
公有构造函数
Environment()
公有方法
static File
getDataDirectory()
Gets the Android data directory.
返回Data的目录
static File
getDownloadCacheDirectory()
Gets the Android Download/Cache content directory.
返回下载缓冲区目录
static File
getExternalStorageDirectory()
Gets the Android external storage directory.
返回扩展存储区目录(SDCard)
static File
getExternalStoragePublicDirectory(String type)
Get a top-level public external storage directory for placing files of a particular type.
返回一个高端的公用的外部存储器目录来摆放某些类型的文件(来自网上)
static String
getExternalStorageState()
Gets the current state of the primary "external" storage device.
返回外部存储设备的当前状态
static File
getRootDirectory()
Gets the Android root directory.
返回Android的根目录
static boolean
isExternalStorageRemovable()
Returns whether the primary "external" storage device is removable.
返回外部存储设备是否可移除
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