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where does exactly getFilesDir() method address?

I have some files you can say a trained model that I need to get their path in my activity class.
I want to use getFilesDir()but it return "data/user/0/com.example.abc/files/".
I just don't know which folder or directory I have to paste my files exactly in order to be in this path so that these file can be get through getFilesDir().

This is the folder on your device
You can find it by opening "Device File Explorer" (this is a collapsed tab in the bottom right of your Android Studio - written vertically on the right edge, bottom)
There you open the folders data/data/com.yourpackage.name/files
Upload your files to this folder and your app can pick them up.
Hope this helps.
Use this way only to test things. For a production scenario you need to package your files in the project, like in the raw or assets folders of your app's resources, so they are contained in the .apk or .aab app bundle.
You can not access this folder via Windows Explorer. The Device must be in developer mode and adb must be running, so you can only access it through android studio or adb command shell. Keep that in mind.

How to update configuration xml file in a Lantronix xport-pro devices

I want to manually update the xml configuration file for Lantronix Xport-pro devices.
I have some process tu upload the file by Java FTP.
My question is: When I upload the file, what is needed to run the update of the xml configuration file?
Thanks.

Solution:
To perform an upgrade of the xport-pro lantronix configuration devices, the XCR file import option must be enabled. This option is found on the Lantronix configuration web page, on the TFTP tab, Select enabled option in the checkbox, then click on the Submit button.
The .xml configuration file can be renamed as an .xcr file. When transferring this file via FTP or tftp, the device automatically runs the configuration and restarts the device.

Where does html5 libgdx app save Preferences files?

As I read here: https://github.com/libgdx/libgdx/wiki/Preferences
Preferences files will be saved to ~/.prefs/ (I'm on linux).
When I run desktop app, it works fine, and preferences file is saved to the right place. But with html5, it doesn't save that file! I'm sure it was saved somewhere, because the game still can read it (it contains scores).
My code is really simple, just:
Preferences score = Gdx.app.getPreferences("Highscore");
score.putInteger("score", _points);
score.flush();
I built the game by running
./gradlew html:dist
and run it on localhost created by python
python -m SimpleHTTPServer
then go to http://localhost:8000 on Firefox.
Anyone could help? Thanks for reading, have a nice day.

I found my .prefs in my libgdx html game by running the game in Chrome, right clicking and choosing Inspect Element, clicking on the Resources tab, expanding the Local Storage tab, and examining the entry https://myAppName. This is where the .prefs are kept...

I can not see with db Questoid SQLite Browser

i am using eclipse for android programing and now i need to view SQLite database in the emulator.
I followed these step:
Download .jar file
Place the plugin .jar file in your Eclipse plugins folder (e.g. /usr/lib/eclipse/plugins)
Restart Eclipse
Start up an Android Emulator w/ Debugging in Eclipse
Switch to the DDMS Perspective in Eclipse
Go to the 'File Explorer' tab to locate your device's database file
Navigate to: e.g. 'data -> data -> com.myproject -> databases -> myproject
Now when i try to Open the database file in Questoid i can't select it!
(see screen shot)
same advice?

From your screen shot there, the database does not have a "." (read: period) in the file name & extension area.
Improper: mydatabaseDB
Proper: mydatabase.db
Once the database shows the proper extension (and is a proper SQLite database), then Questoid will (I use the plugin all the time in Eclipse (Juno version)) then show the "active" button (not disabled like in your screen shot). When looking for latest database entries (what was just added into the database), I then click once again on the toolbar icon as you show there, in the upper right of the screen. I then go to the Browse Data tab for that view, then choose the table from the database I want to view the fields from.
I hope this helps.
Happy coding...

I had the same problem with "sqlitemanager": only .db-Database files are accepted.
This is the solution:
Download this Questoid SqLiteBrowser: http://www.java2s.com/Code/JarDownload/com.questoid/com.questoid.sqlitebrowser_1.2.0.jar.zip
Unzip and put it into eclipse/dropins (not Plugins)

Try following these steps:
1) Close Eclipe
2) Remove the .jar from /usr/lib/eclipse/plugins.
3) Place the .jar in /eclipse/dropins and let Eclipse try to install it for you.
4) Start Eclipse.

you can always use sqlitebrowser externally . You will have to pull your databse everytime from ddms though .

The file has to end with .db extension, so the answer is to name your database as this sqlite browser expects it to be.
Another way of fixing it is to find a year old version that does not have this constraint.

Please use the extension ".db" in lowercase, please don't try with these extensions .SLQLITE, .BD, .DB, .SQL, or similar or without extensions.
Regards,

Install APK from assets or RAW folder

I would like to install an APK from within an Android application. Can anyone give me an example of how to do this?
EDIT:
Also how do I open the install applications from unknown resources preference page so that users can change it?
EDIT:
I actually meant open the screen using code, so I can immediately open the preference page for the user to simply check the box, and press back. Is it possible to check to see if they allow non-market apps?
Can an application request permission enough to do this?

use an intent with the link of your apk file.
Intent intent = new Intent(Intent.ACTION_VIEW ,Uri.parse("http://movil.reforma.com/android/Android_Noticias_Reforma.apk"));
startActivity(intent);
install applications from unknown resources preference
go to
Settings > Applications > Unknow
sources