If you really care about performance, and all you are doing is reading two values and writing them over time, just appending this as binary data to a file would be far, far more efficient than using a SQLite database.
On Sat, Apr 16, 2011 at 1:10 PM, bogde <bogde...@gmail.com> wrote: > Thanks for the suggestion. I wasn't clear enough, I'm reading two > analog values and store them over time; I store two values every ten > seconds, so I need a database. > > I implemented a content provider and everything seems to work great so > far. Actually, it worked pretty well before, except I used to get log > entries from dalvikvm about sqlite errors (I'm ashamed to say I didn't > keep the logs so I can't provide any more details). The application > wasn't crashing or anything but being new to Android I wanted to make > sure I'm at least using the best and safest methods. > > I have to update the charting functions to use the CP instead of > direct database access and I'm done. > > Thank you all for your help! > > Bogdan > > > > On Apr 15, 10:03 am, Kostya Vasilyev <kmans...@gmail.com> wrote: > > Two values? > > > > Service running all the time? > > > > Just put them into static variables accessible from both your Service > > and Activity classes. Back up into shared preferences or a file, so you > > can reload the latest values if/when the service/process is killed. > > > > -- Kostya > > > > 14.04.2011 11:17, bogde пишет: > > > > > Thank you both for taking the time to reply. > > > > > I read about ContentProvider and also read the thread you gave me. It > > > definitely looks like CP is the best approach for me. So I will have > > > the service write data to the database via CP, and the Activity will > > > use CP to display data. I wonder if this adds any unneeded overhead to > > > the whole application. The application runs on a WM8505 based Chinese > > > tablet with only 128 MB of RAM. The purpose of the entire hardware and > > > software is to record and display two values. I really hope the > > > hardware is good enough for the requirements. > > > > > Thanks again! > > > > > Bogdan > > > > -- > > Kostya Vasilyev --http://kmansoft.wordpress.com > > -- > 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 > -- Dianne Hackborn Android framework engineer hack...@android.com Note: please don't send private questions to me, as I don't have time to provide private support, and so won't reply to such e-mails. All such questions should be posted on public forums, where I and others can see and answer them. -- 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
