com.iceteck.silicompressorr

Class FileUtils

java.lang.Object

com.iceteck.silicompressorr.FileUtils

public class FileUtils
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	HIDDEN_PREFIX
static java.lang.String	MIME_TYPE_APP
static java.lang.String	MIME_TYPE_AUDIO
static java.lang.String	MIME_TYPE_IMAGE
static java.lang.String	MIME_TYPE_TEXT
static java.lang.String	MIME_TYPE_VIDEO
static java.util.Comparator<java.io.File>	sComparator File and folder comparator.
static java.io.FileFilter	sDirFilter Folder (directories) filter.
static java.io.FileFilter	sFileFilter File (not directories) filter.

Method Summary

Modifier and Type	Method and Description
static android.content.Intent	createGetContentIntent() Get the Intent for selecting content to be used in an Intent Chooser.
static java.lang.String	getDataColumn(android.content.Context context, android.net.Uri uri, java.lang.String selection, java.lang.String[] selectionArgs) Get the value of the data column for this Uri.
static java.lang.String	getExtension(java.lang.String uri) Gets the extension of a file name, like ".png" or ".jpg".
static java.io.File	getFile(android.content.Context context, android.net.Uri uri) Convert Uri into File, if possible.
static java.lang.String	getMimeType(android.content.Context context, android.net.Uri uri)
static java.lang.String	getMimeType(java.io.File file)
static java.lang.String	getPath(android.content.Context context, android.net.Uri uri) Get a file path from a Uri.
static java.io.File	getPathWithoutFilename(java.io.File file) Returns the path only (without file name).
static java.lang.String	getReadableFileSize(int size) Get the file size in a human-readable string.
static android.graphics.Bitmap	getThumbnail(android.content.Context context, java.io.File file) Attempt to retrieve the thumbnail of given File from the MediaStore.
static android.graphics.Bitmap	getThumbnail(android.content.Context context, android.net.Uri uri) Attempt to retrieve the thumbnail of given Uri from the MediaStore.
static android.graphics.Bitmap	getThumbnail(android.content.Context context, android.net.Uri uri, java.lang.String mimeType) Attempt to retrieve the thumbnail of given Uri from the MediaStore.
static android.net.Uri	getUri(android.content.Context context, java.io.File file) Convert File into Uri.
static boolean	isDownloadsDocument(android.net.Uri uri)
static boolean	isExternalStorageDocument(android.net.Uri uri)
static boolean	isGooglePhotosUri(android.net.Uri uri)
static boolean	isLocal(java.lang.String url)
static boolean	isMediaDocument(android.net.Uri uri)
static boolean	isMediaUri(android.net.Uri uri)

Methods inherited from class java.lang.Object

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

Field Detail

MIME_TYPE_AUDIO

public static final java.lang.String MIME_TYPE_AUDIO

See Also:

Constant Field Values

MIME_TYPE_TEXT

public static final java.lang.String MIME_TYPE_TEXT

See Also:

Constant Field Values

MIME_TYPE_IMAGE

public static final java.lang.String MIME_TYPE_IMAGE

See Also:

Constant Field Values

MIME_TYPE_VIDEO

public static final java.lang.String MIME_TYPE_VIDEO

See Also:

Constant Field Values

MIME_TYPE_APP

public static final java.lang.String MIME_TYPE_APP

See Also:

Constant Field Values

HIDDEN_PREFIX

public static final java.lang.String HIDDEN_PREFIX

See Also:

Constant Field Values

sComparator

public static java.util.Comparator<java.io.File> sComparator

File and folder comparator. TODO Expose sorting option method

sFileFilter

public static java.io.FileFilter sFileFilter

File (not directories) filter.

sDirFilter

public static java.io.FileFilter sDirFilter

Folder (directories) filter.

Method Detail

getExtension

public static java.lang.String getExtension(java.lang.String uri)

Gets the extension of a file name, like ".png" or ".jpg".

Parameters:

uri -

Returns:

Extension including the dot("."); "" if there is no extension; null if uri was null.

isLocal

public static boolean isLocal(java.lang.String url)

Returns:

Whether the URI is a local one.

isMediaUri

public static boolean isMediaUri(android.net.Uri uri)

Returns:

True if Uri is a MediaStore Uri.

getUri

public static android.net.Uri getUri(android.content.Context context,
                                     java.io.File file)

Convert File into Uri.

Parameters:

file -

Returns:

uri

getPathWithoutFilename

public static java.io.File getPathWithoutFilename(java.io.File file)

Returns the path only (without file name).

Parameters:

file -

Returns:

getMimeType

public static java.lang.String getMimeType(java.io.File file)

Returns:

The MIME type for the given file.

getMimeType

public static java.lang.String getMimeType(android.content.Context context,
                                           android.net.Uri uri)

Returns:

The MIME type for the give Uri.

isExternalStorageDocument

public static boolean isExternalStorageDocument(android.net.Uri uri)

Parameters:

uri - The Uri to check.

Returns:

Whether the Uri authority is ExternalStorageProvider.

isDownloadsDocument

public static boolean isDownloadsDocument(android.net.Uri uri)

Parameters:

uri - The Uri to check.

Returns:

Whether the Uri authority is DownloadsProvider.

isMediaDocument

public static boolean isMediaDocument(android.net.Uri uri)

Parameters:

uri - The Uri to check.

Returns:

Whether the Uri authority is MediaProvider.

isGooglePhotosUri

public static boolean isGooglePhotosUri(android.net.Uri uri)

Parameters:

uri - The Uri to check.

Returns:

Whether the Uri authority is Google Photos.

getDataColumn

public static java.lang.String getDataColumn(android.content.Context context,
                                             android.net.Uri uri,
                                             java.lang.String selection,
                                             java.lang.String[] selectionArgs)

Get the value of the data column for this Uri. This is useful for MediaStore Uris, and other file-based ContentProviders.

Parameters:

context - The context.

uri - The Uri to query.

selection - (Optional) Filter used in the query.

selectionArgs - (Optional) Selection arguments used in the query.

Returns:

The value of the _data column, which is typically a file path.

getPath

public static java.lang.String getPath(android.content.Context context,
                                       android.net.Uri uri)

Get a file path from a Uri. This will get the the path for Storage Access Framework Documents, as well as the _data field for the MediaStore and other file-based ContentProviders.

Callers should check whether the path is local before assuming it represents a local file.

Parameters:

context - The context.

uri - The Uri to query.

See Also:

isLocal(String), getFile(Context, Uri)

getFile

public static java.io.File getFile(android.content.Context context,
                                   android.net.Uri uri)

Convert Uri into File, if possible.

Returns:

file A local file that the Uri was pointing to, or null if the Uri is unsupported or pointed to a remote resource.

See Also:

getPath(Context, Uri)

getReadableFileSize

public static java.lang.String getReadableFileSize(int size)

Get the file size in a human-readable string.

Parameters:

size -

Returns:

getThumbnail

public static android.graphics.Bitmap getThumbnail(android.content.Context context,
                                                   java.io.File file)

Attempt to retrieve the thumbnail of given File from the MediaStore. This should not be called on the UI thread.

Parameters:

context -

file -

Returns:

getThumbnail

public static android.graphics.Bitmap getThumbnail(android.content.Context context,
                                                   android.net.Uri uri)

Attempt to retrieve the thumbnail of given Uri from the MediaStore. This should not be called on the UI thread.

Parameters:

context -

uri -

Returns:

getThumbnail

public static android.graphics.Bitmap getThumbnail(android.content.Context context,
                                                   android.net.Uri uri,
                                                   java.lang.String mimeType)

Attempt to retrieve the thumbnail of given Uri from the MediaStore. This should not be called on the UI thread.

Parameters:

context -

uri -

mimeType -

Returns:

createGetContentIntent

public static android.content.Intent createGetContentIntent()

Get the Intent for selecting content to be used in an Intent Chooser.

Returns:

The intent for opening a file with Intent.createChooser()