where does dataDir in Android

Answer 1

This lives in the android filesystem, which is different from your computer's file system. To view the files in android filesystem, use adb shell on the command prompt. Run: adb shell ls /data/data/com.andr.activity. Make sure your device/emulator is connected before you do this. Or if you are using eclipse, switch to DDMS view and check out the file explorer.

To View file:

adb shell
Inside shell use:
cd /data/data/com.andr.activity
cat filename

Or Use adb pull to copy file to your computer's local filesystem and then view it using any editor. Read more about adb pull here