[안드로이드 api] android.os.Environment (SD Card 접근시 사용)

public class

Environment

extends Object

java.lang.Object
↳	android.os.Environment

Class Overview

---

환경변수에 접근할 수 있게 해준다.

ExternalStorage 등에 접근할 때 사용. AndroidMenifest.xml 에 권한 설정도 필요

Summary

---

Constants
String	MEDIA_BAD_REMOVAL	getExternalStorageState() returns MEDIA_BAD_REMOVAL if the media was removed before it was unmounted.
String	MEDIA_CHECKING	getExternalStorageState() returns MEDIA_CHECKING if the media is present and being disk-checked
String	MEDIA_MOUNTED	getExternalStorageState() returns MEDIA_MOUNTED if the media is present and mounted at its mount point with read/write access.
String	MEDIA_MOUNTED_READ_ONLY	getExternalStorageState() returns MEDIA_MOUNTED_READ_ONLY if the media is present and mounted at its mount point with read only access.
String	MEDIA_NOFS	getExternalStorageState() returns MEDIA_NOFS if the media is present but is blank or is using an unsupported filesystem
String	MEDIA_REMOVED	getExternalStorageState() returns MEDIA_REMOVED if the media is not present.
String	MEDIA_SHARED	getExternalStorageState() returns MEDIA_SHARED if the media is present not mounted, and shared via USB mass storage.
String	MEDIA_UNMOUNTABLE	getExternalStorageState() returns MEDIA_UNMOUNTABLE if the media is present but cannot be mounted.
String	MEDIA_UNMOUNTED	getExternalStorageState() returns MEDIA_UNMOUNTED if the media is present but not mounted.

Fields
public static String	DIRECTORY_ALARMS	Standard directory in which to place any audio files that should be in the list of alarms that the user can select (not as regular music).
public static String	DIRECTORY_DCIM	The traditional location for pictures and videos when mounting the device as a camera.
public static String	DIRECTORY_DOWNLOADS	Standard directory in which to place files that have been downloaded by the user.
public static String	DIRECTORY_MOVIES	Standard directory in which to place movies that are available to the user.
public static String	DIRECTORY_MUSIC	Standard directory in which to place any audio files that should be in the regular list of music for the user.
public static String	DIRECTORY_NOTIFICATIONS	Standard directory in which to place any audio files that should be in the list of notifications that the user can select (not as regular music).
public static String	DIRECTORY_PICTURES	Standard directory in which to place pictures that are available to the user.
public static String	DIRECTORY_PODCASTS	Standard directory in which to place any audio files that should be in the list of podcasts that the user can select (not as regular music).
public static String	DIRECTORY_RINGTONES	Standard directory in which to place any audio files that should be in the list of ringtones that the user can select (not as regular music).

Public Constructors
	Environment()

Public Methods
static File	getDataDirectory() Gets the Android data directory.
static File	getDownloadCacheDirectory() Gets the Android Download/Cache content directory.
static File	getExternalStorageDirectory() Gets the Android external storage directory.
static File	getExternalStoragePublicDirectory(String type) Get a top-level public external storage directory for placing files of a particular type.
static String	getExternalStorageState() Gets the current state of the primary "external" storage device.
static File	getRootDirectory() Gets the Android root directory.
static boolean	isExternalStorageEmulated() Returns whether the device has an external storage device which is emulated.
static boolean	isExternalStorageRemovable() Returns whether the primary "external" storage device is removable.

[Expand] Inherited Methods
From class java.lang.Object