Is there a way to detect whether the apk is stored on SD-card or not?

Question

Is there a way to detect whether the apk is stored on SD-card or not? How?

Answer 1

Use getApplicationInfo().sourceDir

http://developer.android.com/reference/android/content/pm/ApplicationInfo.html

Answer 2

To make the accepted answer more concrete, here's an example of how I've used it in the context of accessing files written to internal vs external storage, according to API level 7 guidelines or lower:

{   //...
    mInternalApp = context.getApplicationInfo().sourceDir.matches("^/data/app/.*");
    mPathInternal = context.getApplicationInfo().dataDir + "/files/";
    mPathExternal = Environment.getExternalStorageDirectory() + "/Android/data/"
                + PACKAGE_NAME + "/files/";
}

private File getMyFile() {
    return (mInternalApp) ? new File(mPathInternal + INT_FILE_NAME) :
                            new File(mPathExternal + EXT_FILE_NAME);
}