android.os
Class Environment

java.lang.Object
  android.os.Environment

public class Environment
extends Object

Provides access to environment variables.

Field Summary

static String	MEDIA_BAD_REMOVAL getExternalStorageState() returns MEDIA_BAD_REMOVAL if the media was removed before it was unmounted.
static String	MEDIA_MOUNTED getExternalStorageState() returns MEDIA_MOUNTED if the media is present and mounted at its mount point with read/write access.
static 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.
static String	MEDIA_REMOVED getExternalStorageState() returns MEDIA_REMOVED if the media is not present.
static String	MEDIA_SHARED getExternalStorageState() returns MEDIA_SHARED if the media is present not mounted, and shared via USB mass storage.
static String	MEDIA_UNMOUNTABLE getExternalStorageState() returns MEDIA_UNMOUNTABLE if the media is present but cannot be mounted.
static String	MEDIA_UNMOUNTED getExternalStorageState() returns MEDIA_UNMOUNTED if the media is present but not mounted.

Constructor Summary

Environment()

Method Summary

static File	getDataDirectory() Gets the Android data directory.
(package private) static File	getDirectory(String variableName, String defaultPath)
static File	getDownloadCacheDirectory() Gets the Android Download/Cache content directory.
static File	getExternalStorageDirectory() Gets the Android external storage directory.
static String	getExternalStorageState() Gets the current state of the external storage device.
static File	getRootDirectory() Gets the Android root directory.

Methods inherited from class java.lang.Object

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

Field Detail

MEDIA_REMOVED

public static final String MEDIA_REMOVED

getExternalStorageState() returns MEDIA_REMOVED if the media is not present.

See Also:

Constant Field Values

MEDIA_UNMOUNTED

public static final String MEDIA_UNMOUNTED

getExternalStorageState() returns MEDIA_UNMOUNTED if the media is present but not mounted.

See Also:

Constant Field Values

MEDIA_MOUNTED

public static final String MEDIA_MOUNTED

getExternalStorageState() returns MEDIA_MOUNTED if the media is present and mounted at its mount point with read/write access.

See Also:

Constant Field Values

MEDIA_MOUNTED_READ_ONLY

public static final 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.

See Also:

Constant Field Values

MEDIA_SHARED

public static final String MEDIA_SHARED

getExternalStorageState() returns MEDIA_SHARED if the media is present not mounted, and shared via USB mass storage.

See Also:

Constant Field Values

MEDIA_BAD_REMOVAL

public static final String MEDIA_BAD_REMOVAL

getExternalStorageState() returns MEDIA_BAD_REMOVAL if the media was removed before it was unmounted.

See Also:

Constant Field Values

MEDIA_UNMOUNTABLE

public static final String MEDIA_UNMOUNTABLE

getExternalStorageState() returns MEDIA_UNMOUNTABLE if the media is present but cannot be mounted. Typically this happens if the file system on the media is corrupted.

See Also:

Constant Field Values

Constructor Detail

Environment

public Environment()

Method Detail

getRootDirectory

public static File getRootDirectory()

Gets the Android root directory.

getDataDirectory

public static File getDataDirectory()

Gets the Android data directory.

getExternalStorageDirectory

public static File getExternalStorageDirectory()

Gets the Android external storage directory.

getDownloadCacheDirectory

public static File getDownloadCacheDirectory()

Gets the Android Download/Cache content directory.

getExternalStorageState

public static String getExternalStorageState()

Gets the current state of the external storage device.

getDirectory

static File getDirectory(String variableName,
                         String defaultPath)