![]() Basically, it's a tar archive that has been run through deflate and optionally encrypted (in a somewhat peculiar way) by AES-256-CRC cypher. ab" file contains application data in android backup format, which, thanks to +Nikolay Elenkov, is very well explained and documented in his excellent blog post. The screen will display the name of the package you're backing up, then close by itself upon successful completion. To keep things simple do not provide a password, otherwise you will have to jump through the hoops to decrypt it later. This will prompt you to "unlock your device and confirm the backup operation". ![]() So all I had to do in order to pull that application's data from the device is to run:Īdb backup -f ~/data.ab -noapk It appeared that reading Android application data folder with root access was impossible.Īt this point I remembered that starting with Android v4.0 (Ice Cream Sandwich) Google has provided a way to backup data and applications from Android devices without root via adb. Unfortunately, in this case the application was not debuggable, so the method above did not work either. In essence, we pretend to be the application in question and copy file(s) stored inside the application's data folder into user readable folder like so:Ĭp /data/data/package.name/databases/application.sqlite /sdcard/ If the application, whose data you wish to access, is debuggable, its read-protected folder can be accessed with the help of the run-as command. I Googled around for a solution and seemingly found one. On my coworker's phone, however, this wouldn't work since he was using a stock, non-rooted Android OS. Update: after I've discovered this neat trick, the above can be reduced to one line:Īdb shell su -c cat /data/data//databases/application.sqlite | sed 's/\r$//' > application.sqlite Usually, I connect my phone to my computer with USB cable, open CLI and do the following, where should be replaced with the actual package name of the application:Ĭp /data/data//databases/application.sqlite /sdcard/ This isn't an issue on my rooted Galaxy Nexus. The application was great, but it was designed to upload collected data to the cloud and didn't offer any means to export or backup information locally. If (!Environment.MEDIA_MOUNTED.Recently I recommended a certain data collecting Android app to my coworker. String state = Environment.getExternalStorageState() * Remember that the external storage is not necessarily the sd card. **First of all we check if the external storage of the device is available for writing. Here you can download the code in a more readable format.ĭateFormat df = DateFormat.getDateInstance(DateFormat.SHORT, Locale.getDefault()) In the following example we use the java.io.FileWriter class, because we want to create a text file writing one character at a time (2 bytes), and the java.io.PrintWriter class as a Decorator (remember the Decorator pattern in Java?), because we want to write one line at a time in the file. ![]() csv file, while the fields of each record are separeted by commas.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |