Finally released my first App

I finally released my first iPhone app, Repetitions, today. It’s going to be very interesting to see how it does. After reading about how other apps have done I’m not very optimistic, especially since the release date of my app was set to 25 August (when it was accepted by Apple) instead of today when it was actually released. Which of course means my app now appears on page 6 of the “Health and Fitness” category in the AppStore. Where no one will find it. But I will be releasing an update soon anyway, which should put it on the first page at least for a couple of days.

Added mySettings to GitHub

I finally added mySettings to GitHub, using the marvel that is hg-git. It allows me to continue using mercurial, and to push and pull from git repositories. The project on GitHub can be found here. The main place for mySettings will still be on BitBucket, I’m just uploading the code to GitHub to see if it will attract more users and contributors.

Customising a table view with mySettings

I’ve been working on my iPhone app lately (for performing physical exercises like the ones you get from a physiotherapist, but more about that later) so I haven’t written anything for a long time. I thought I’d rectify that by showing how to create highly customised UIs with fairly little coding. I recently added support for delegates to mySettings and that opened up a lot of possibilities, even with only one method in the delegate (for now).

As an example, here’s the configuration screen for my app:
Configuration screen

Continue reading

Another way to create Settings views

Craig Hockenberry has also created an API for Settings views. But unlike mySettings his API creates the views from code instead of plists. Like this:

- (void)constructTableGroups
{
NSMutableArray *cells = [NSMutableArray array];
IFTextCellController *textCell = [[[IFTextCellController alloc] initWithLabel:@"Text" andPlaceholder:@"Placeholder" atKey:@"sampleText" inModel:model] autorelease];
[cells addObject:textCell];
IFSwitchCellController *switchCell = [[[IFSwitchCellController alloc] initWithLabel:@"Switch" atKey:@”sampleSwitch” inModel:model] autorelease];
[cells addObject:switchCell];
tableGroups = [[NSArray arrayWithObject:cells] retain];
}

Check it out at http://furbo.org/2009/04/30/matt-gallagher-deserves-a-medal/ .

Measuring pixels in OS X

I know there are standalone applications for this, but when I need to measure something in one of my applications I find it easiest to just use the screenshot functionality built into OS X. Just press Command-Control-Shift-4 and drag to measure.

A UIPickerView with labels

I recently needed a picker view with labels (like the one in the timer tab in the Clock app) to select minutes and seconds for a time interval. So I made the following subclass of UIPickerView:

#import

/**
A picker view with labels under the selection indicator.
Similar to the one in the timer tab in the Clock app.
NB: has only been tested with less than four wheels.
*/
@interface LabeledPickerView : UIPickerView {
NSMutableDictionary *labels;
}

/** Adds the label for the given component. */
- (void) addLabel:(NSString *)labeltext forComponent:(NSUInteger)component;

@end

Continue reading

mySettings: A Settings API for the iPhone

NB: Unfortunately I am not able to do any more development on this or any other projects. I am hoping that someone else will take over the project and update it. There is also this similar project.

A lot of iPhone apps have their own settings views similar to the ones in the Settings App on the iPhone home screen. But to my surprise I couldn’t find any general API for it. So I made my own and published it here. It uses a plist configuration file like the one used by the Settings App, with some added options (and some removed ones, but they will hopefully be implemented in the near future).

In a nutshell it takes a plist like this:

plist

and turns it into this:

iPhone

Features

  • Text fields, on/off switch button, integers and time intervals (with maximum/minimum values and custom format string for the integers).
    More options are needed, obviously, like dates and select lists. Feel free to help out if there are other options you would like to see implemented.
  • Titles can be indented.
  • By default the settings themselves are stored in the standard user defaults object ([NSUserDefaults standardUserDefaults]), but you can use any object that supports key-value coding. This enables you to use your model classes directly in the settings view.
  • And if you don’t find blue pyjama stripes exciting, you can of course change the table view background.

And that’s it for the time being. A work in progress, obviously. I would also like to see support for custom table cells and dynamically filling a section with the contents of an array or a dictionary. And localisation. And sliders. And customising fonts and colours. And lots more cool stuff. So if you want to check it out, follow these instructions. And if you make any changes please let me know so I can merge them back into the repository.