[android-developers] Re: Is app's first run?
Yeah that works perfectly, in my situation I'm working on an existing
project that is already in the wild, so I can't rely on a value in the
preferences file to check for this though. That would be the best
solution I think.
To get around this, I can do something like the following (going off
your original solution):
File file = new File("/data/data/com.foo.bar/shared_prefs/
com.foo.bar_preferences.xml");
if (file.exists()) {
...
}
that is one big hard-coded string, but the existence of this file
seems to work ok. I guess it's alright?
Thanks
On Mar 18, 12:47 pm, Mark Murphy wrote:
> Mark Wyszomierski wrote:
> > Yeah that definition is perfect, having a little trouble implementing
> > it though.
>
> > I'm just trying to use:
>
> > File file = getFilesDir();
>
> > this points to:
>
> > /data/data/com.foo.bar/files
>
> > which is empty though, nothing gets written there during my app's
> > lifetime. My app's directory structure looks like this:
>
> > com/foo.bar
> > /cache
> > /databases
> > webviewstuff.db
> > /files
> > /lib
> > /shared_prefs
> > com.foo.bar_preferences.xml
>
> > should I be seeing databases/preferences? Or am I supposed to be
> > looking for the existence of /shared_prefs/
> > com.foo.bar_preferences.xml. If so, is there a proper way to resolve
> > that path other than kind of hard-coding it into my app?
>
> If you have shared preferences, then you can do this:
>
> Step #1: Get your shared preferences (hopefully
> PreferenceManager.getDefaultSharedPreferences())
>
> Step #2: Look for the "hey! I've been run before" preference
>
> Step #2a: If that preference is not found, it's your first run, so set
> that preference (and commit() the change) and do your first-run logic
>
> Step #2b: If that preference is found, you've been run before,
> so...ummm...carry on, or whatever
>
> --
> Mark Murphy (a Commons
> Guy)http://commonsware.com|http://twitter.com/commonsguy
>
> Android Training...At Your Office:http://commonsware.com/training
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Re: [android-developers] Re: Is app's first run?
Mark Wyszomierski wrote: > Yeah that definition is perfect, having a little trouble implementing > it though. > > I'm just trying to use: > > File file = getFilesDir(); > > this points to: > > /data/data/com.foo.bar/files > > which is empty though, nothing gets written there during my app's > lifetime. My app's directory structure looks like this: > > com/foo.bar > /cache > /databases >webviewstuff.db > /files > /lib > /shared_prefs >com.foo.bar_preferences.xml > > should I be seeing databases/preferences? Or am I supposed to be > looking for the existence of /shared_prefs/ > com.foo.bar_preferences.xml. If so, is there a proper way to resolve > that path other than kind of hard-coding it into my app? If you have shared preferences, then you can do this: Step #1: Get your shared preferences (hopefully PreferenceManager.getDefaultSharedPreferences()) Step #2: Look for the "hey! I've been run before" preference Step #2a: If that preference is not found, it's your first run, so set that preference (and commit() the change) and do your first-run logic Step #2b: If that preference is found, you've been run before, so...ummm...carry on, or whatever -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android Training...At Your Office: http://commonsware.com/training -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe from this group, send email to android-developers+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
[android-developers] Re: Is app's first run?
Yeah that definition is perfect, having a little trouble implementing it though. I'm just trying to use: File file = getFilesDir(); this points to: /data/data/com.foo.bar/files which is empty though, nothing gets written there during my app's lifetime. My app's directory structure looks like this: com/foo.bar /cache /databases webviewstuff.db /files /lib /shared_prefs com.foo.bar_preferences.xml should I be seeing databases/preferences? Or am I supposed to be looking for the existence of /shared_prefs/ com.foo.bar_preferences.xml. If so, is there a proper way to resolve that path other than kind of hard-coding it into my app? Thank you On Mar 18, 11:50 am, Mark Murphy wrote: > Mark Wyszomierski wrote: > >>> Otherwise, checking for files/databases/preferences is pretty typical > >>> AFAIK. > > > This sounds like my best bet - so you're saying at app startup, I can > > check if files/databases/preferences exists - if it does, this is not > > my first run, if it is missing, then it's my first run? > > For a sufficiently-generous definition of "first run", yes. > > You will not be able to distinguish between install and > install-uninstall-reinstall this way. Hopefully, that distinction does > not matter. > > -- > Mark Murphy (a Commons > Guy)http://commonsware.com|http://twitter.com/commonsguy > > Android App Developer Training:http://commonsware.com/training -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en To unsubscribe from this group, send email to android-developers+unsubscribegooglegroups.com or reply to this email with the words "REMOVE ME" as the subject.
Re: [android-developers] Re: Is app's first run?
Mark Wyszomierski wrote: >>> Otherwise, checking for files/databases/preferences is pretty typical AFAIK. > > This sounds like my best bet - so you're saying at app startup, I can > check if files/databases/preferences exists - if it does, this is not > my first run, if it is missing, then it's my first run? For a sufficiently-generous definition of "first run", yes. You will not be able to distinguish between install and install-uninstall-reinstall this way. Hopefully, that distinction does not matter. -- Mark Murphy (a Commons Guy) http://commonsware.com | http://twitter.com/commonsguy Android App Developer Training: http://commonsware.com/training -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
[android-developers] Re: Is app's first run?
>> Otherwise, checking for files/databases/preferences is pretty typical AFAIK. This sounds like my best bet - so you're saying at app startup, I can check if files/databases/preferences exists - if it does, this is not my first run, if it is missing, then it's my first run? Thanks On Mar 18, 11:41 am, Mark Murphy wrote: > Mark Wyszomierski wrote: > > Is there any way to tell whether an application is being run for the > > first time, other than checking if there are any left over > > preferences / files from a previous run? > > While your app can't receive a broadcast Intent saying it was installed, > I think you can receive one saying you were updated, if that helps. > > Otherwise, checking for files/databases/preferences is pretty typical AFAIK. > > -- > Mark Murphy (a Commons > Guy)http://commonsware.com|http://twitter.com/commonsguy > > Warescription: Three Android Books, Plus Updates, One Low Price! -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to android-developers@googlegroups.com To unsubscribe from this group, send email to android-developers+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
