The common super class for File, Directory, and Link objects.
FileSystemEntity objects are returned from directory listing operations. To determine if a FileSystemEntity is a File, a Directory, or a Link perform a type check:
if (entity is File) (entity as File).readAsStringSync();
You can also use the type or typeSync methods to determine the type of a file system object.
Most methods in this class occur in synchronous and asynchronous pairs, for example, exists and existsSync. Unless you have a specific reason for using the synchronous version of a method, prefer the asynchronous version to avoid blocking your program.
Here's the exists method in action:
entity.exists().then((isThere) {
isThere ? print('exists') : print('non-existent');
});
Other resources
-
Dart by Example provides additional task-oriented code samples that show how to use various API from the Directory class and the File class, both subclasses of FileSystemEntity.
-
I/O for Command-Line Apps, a section from A Tour of the Dart Libraries covers files and directories.
-
Write Command-Line Apps, a tutorial about writing command-line apps, includes information about files and directories.
Static Properties
- isWatchSupported → bool
-
Test if
watchis supported on the current system.read-only
Static Methods
-
identical(
String path1, String path2) → Future<bool> -
Checks whether two paths refer to the same object in the file system. Returns a
Future<bool>that completes with the result. -
identicalSync(
String path1, String path2) → bool -
Synchronously checks whether two paths refer to the same object in the file system.
-
isDirectory(
String path) → Future<bool> -
Checks if type(path) returns FileSystemEntityType.DIRECTORY.
-
isDirectorySync(
String path) → bool -
Synchronously checks if typeSync(path) returns FileSystemEntityType.DIRECTORY.
-
isFile(
String path) → Future<bool> -
Checks if type(path) returns FileSystemEntityType.FILE.
-
isFileSync(
String path) → bool -
Synchronously checks if typeSync(path) returns FileSystemEntityType.FILE.
-
isLink(
String path) → Future<bool> -
Checks if type(path, followLinks: false) returns FileSystemEntityType.LINK.
-
isLinkSync(
String path) → bool -
Synchronously checks if typeSync(path, followLinks: false) returns FileSystemEntityType.LINK.
-
parentOf(
String path) → String -
Removes the final path component of a path, using the platform's path separator to split the path. Will not remove the root component of a Windows path, like "C:\" or "\\server_name\". Ignores trailing path separators, and leaves no trailing path separators.
-
type(
String path, { bool followLinks: true }) → Future<FileSystemEntityType> -
Finds the type of file system object that a path points to. Returns a
Future<FileSystemEntityType>that completes with the result. -
typeSync(
String path, { bool followLinks: true }) → FileSystemEntityType -
Synchronously finds the type of file system object that a path points to. Returns a FileSystemEntityType.
Constructors
Properties
- absolute → FileSystemEntity
-
Returns a
FileSystemEntitywhose path is the absolute path tothis. The type of the returned instance is the type ofthis.read-only - isAbsolute → bool
-
Returns a
boolindicating whether this object's path is absolute.read-only - parent → Directory
-
The directory containing
this.read-only - path → String
-
read-only
- uri → Uri
-
Returns a
Urirepresenting the file system entity's location.read-only - hashCode → int
-
The hash code for this object.
read-only, inherited - runtimeType → Type
-
A representation of the runtime type of the object.
read-only, inherited
Operators
-
operator ==(
other) → bool -
The equality operator.
inherited
Methods
-
delete(
{bool recursive: false }) → Future<FileSystemEntity> -
Deletes this FileSystemEntity.
-
deleteSync(
{bool recursive: false }) → void -
Synchronously deletes this FileSystemEntity.
-
exists(
) → Future<bool> -
Checks whether the file system entity with this path exists. Returns a
Future<bool>that completes with the result. -
existsSync(
) → bool -
Synchronously checks whether the file system entity with this path exists.
-
rename(
String newPath) → Future<FileSystemEntity> -
Renames this file system entity. Returns a
Future<FileSystemEntity>that completes with a FileSystemEntity instance for the renamed file system entity. -
renameSync(
String newPath) → FileSystemEntity -
Synchronously renames this file system entity. Returns a FileSystemEntity instance for the renamed entity.
-
resolveSymbolicLinks(
) → Future<String> -
Resolves the path of a file system object relative to the current working directory, resolving all symbolic links on the path and resolving all
..and.path segments. -
resolveSymbolicLinksSync(
) → String -
Resolves the path of a file system object relative to the current working directory, resolving all symbolic links on the path and resolving all
..and.path segments. -
stat(
) → Future<FileStat> -
Calls the operating system's stat() function on the path of this FileSystemEntity. Identical to
FileStat.stat(this.path). -
statSync(
) → FileStat -
Synchronously calls the operating system's stat() function on the path of this FileSystemEntity. Identical to
FileStat.statSync(this.path). -
watch(
{int events: FileSystemEvent.ALL, bool recursive: false }) → Stream<FileSystemEvent> -
Start watching the FileSystemEntity for changes.
-
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a non-existent method or property is accessed.
inherited -
toString(
) → String -
Returns a string representation of this object.
inherited