| java.lang.Object | |
| ↳ | android.os.FileObserver |
| Constants | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| int | ACCESS | File was accessed | |||||||||
| int | ALL_EVENTS | ||||||||||
| int | ATTRIB | Metadata changed | |||||||||
| int | CLOSE_NOWRITE | Unwrittable file closed | |||||||||
| int | CLOSE_WRITE | Writable file was closed | |||||||||
| int | CREATE | Subfile was created | |||||||||
| int | DELETE | Subfile was deleted | |||||||||
| int | DELETE_SELF | Self was deleted | |||||||||
| int | MODIFY | File was modified | |||||||||
| int | MOVED_FROM | File was moved from X | |||||||||
| int | MOVED_TO | File was moved to Y | |||||||||
| int | MOVE_SELF | Self was moved | |||||||||
| int | OPEN | File was opened | |||||||||
| Public Constructors | |||||||||||
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| Public Methods | |||||||||||
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| Protected Methods | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
Is called before the object's memory is being reclaimed by the VM.
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Inherited Methods | |||||||||||
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From class java.lang.Object
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Unwrittable file closed
Writable file was closed
Subfile was created
Subfile was deleted
Self was deleted
File was moved from X
File was moved to Y
Self was moved
Is called before the object's memory is being reclaimed by the VM. This can only happen once the VM has detected, during a run of the garbage collector, that the object is no longer reachable by any thread of the running application.
The method can be used to free system resources or perform other cleanup
before the object is garbage collected. The default implementation of the
method is empty, which is also expected by the VM, but subclasses can
override finalize() as required. Uncaught exceptions which are
thrown during the execution of this method cause it to terminate
immediately but are otherwise ignored.
Note that the VM does guarantee that finalize() is called at most
once for any object, but it doesn't guarantee when (if at all) finalize() will be called. For example, object B's finalize()
can delay the execution of object A's finalize() method and
therefore it can delay the reclamation of A's memory. To be safe, use a
ReferenceQueue, because it provides more control
over the way the VM deals with references during garbage collection.
