How to detect file or folder changes in Android?

Is it possible to detect folder changes in Android? I mean detect when files are deleted or changed and know which application are doing these? In Windows you have s开发者_如何学Cystem events for this, it's not necessary to permanently watch the files to detect changes. It's very important to know which application is doing the changes.

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Is possible to detect folder changes in android?

You can use FileObserver to find out when files are modified.

Is very important to know wich application is doing the changes.

That information is not available.