Where does application data file actually stored on android device?

android file titanium appcelerator
Bowie picture Bowie · May 30, 2012 · Viewed 117.7k times · Source

I have developed an Android app using Appcelerator Titanium. This app will create a file in applicationDataDirectory and install a database as well.

If run on emulator, I can locate those files using "adb" command. But how about on Android device? Can I use the "My Files" app to view those file I created? (since I can see files created by other application there.)

Moreover, I expect once I removed the app on device, it will automatically remove the related files and database. Is that true?

Because I found that even I removed the app from the device, the database seems left behind. I can tell because after deleting app and re-run on device(from Titanium), it show previous data.

I am using Ti SDK 2.0.1GA2, Android Runtime V8. And using Samsung Galaxy Tab for testing. Thanks in advance.

Answer

papaiatis picture papaiatis · May 30, 2012

Application Private Data files are stored within <internal_storage>/data/data/<package>

Files being stored in the internal storage can be accessed with openFileOutput() and openFileInput()

When those files are created as MODE_PRIVATE it is not possible to see/access them within another application such as a FileManager.

Related questions

Convert file: Uri to File in Android

What's the easiest way to convert from a file: android.net.Uri to a File in Android? Tried the following but it doesn't work: final File file = new File(Environment.getExternalStorageDirectory(), "read.me"); Uri uri = Uri.fromFile(file); File auxFile = …

Read More
How to create a file in Android?

How to create a file, write data into it and read data from it on Android? If possible provide a code snippet.

Read More
Android saving file to external storage

I have a little issue with creating a directory and saving a file to it on my android application. I'm using this piece of code to do this : String filename = "MyApp/MediaTag/MediaTag-"+objectId+".png"; File file = new File(Environment.…

Read More