Cory Wiles Blog

One of the greatest new features that is included in iOS4 is the power that developers have to deliver local notifications.  At the time that the first beta was released in April I was writing specs/requirements and project timeline for a potential app which would have ended up taking me about 5 months to develop.  A large part of the project schedule dealt with having to setup/maintain user reminder preferences...the number of reminders, frequency of each one, time zones, etc.  I tried to think of ever solution that I could that didn't involve the server component, but there really wasn't any other way.

UILocationNotification to the rescue.  After looking over the API docs, Apple had provided exactly what I needed and I was able to cut out 2.5 months from the project schedule because of it.

I was able to create an POC app using UILocationNotifications in literally 5 minutes.  It involved two easy steps:

1. In the app delegate class I added the following method to verify that the event was fired off if the app was running. -(void)application:(UIApplication *)application didReceiveLocationNotification:(UILocationNotification *)notification;
2. In the -(void) viewDidLoad method of my controller you alloc/init a new UILocationNotification object, set the fireDate which is an NSDate object, what time zone you want, what the notification message(body) should be and then add the UILocationNotification object to the UIApplication scheduleLocalNotification method

There are two possible end results.  The first being that the event is fired off while the app is running in which case you will not see anything. Hence, why I added the NSLog to the didReceiveLocationNotification method.  The second is if you close the app before the notification has fired and in that case you will receive the alert box with your message.

Download XCode Project

Note: This was compiled with iOS4 GM and tested on iPhone 3G/3GS

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I am currently working on a photo gallery/slideshow app and one of the requirements is for the main gallery listing page to have static header and footer that shows the app name, contact information and adverts.  The logical first method of attack is to just setup a UITableViewController subclass, slap some views and subviews to the table view header and footer and get on with the day.  However, the table itself should scroll, but the "header" and "footer" views should remain stationary.  My first approach, I found out quickly, did not work.  Surprisingly, there are a lot of people having issues with custom sized uitableviews in general and the discussions that I saw online didn't provide a very straight forward solution so I decided to create one.

The first big problem that most people run into is that they can't seem to resize the uitableview no matter what frame size they set.  It doesn't matter if you do it programmatically or through Interface Builder it still takes up the ENTIRE screen.  That is because they have subclassed UITableViewController.  To be honest I am not sure that happens "under the covers", but the custom frame sizes/locations are ignored.  You must make your controller a subclass of UIViewController and then add your UITableView as a subview to the your controllers view.

For example:

At this point your frame size and height will be respected.

In my example I setup a simple UINavigationController project with two controllers.  The first has a header view, footer view and uitableview.  The second "detail" controller just has a UILabel with placeholder text.  Everything is built programmatically so that you can adjust frames and positions easily as well as any other customizations you would like.  Comments/suggestions are always appreciated.

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Support Memphis in it's bid for Google Fiber.  Due your small part in something BIG.

http://memphisgoogle.net/site/submit-ideas
http://www.youtube.com/mcan901

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Based upon the myriad of tweets over the past three months or so, most who follow me know that I have been working on my first iPhone app.  Well, first to submitted to the app store.  I have finished an app for work and have started on another for www.feedfootball.com.  Though the app hasn't hit the stores YET, I already have the inspiration to build more.  EraseUrX has by far been the most rewarding project I have worked on in the past three years.  Even if I don't make a lot of money, it truly has been self satisfying to just complete this project.  I can't wait to get started on the next one not only for the challenges that await, but also I know that I be able to put it in the App Store faster.

There has been a lot of criticism of Apple's approval process in the App Store, but over the past three months they have made great strides to improve this process and it has benefited developers greatly.  In addition, there are rumors floating around of a possible upcoming announcement of the 4.0SDK and a new phone device, which if the 3.0 release is any indication of the amount new features added to the phone, then the 4.0 release will give developers even more tools to increase the usability and features in our apps.

Hopefully, the saying is true...

If you build it they will come.

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I guess you could really argue that the "mobile revolution" was started when Apple first released the iPhone, but 2010, I predict, will be a year full of explosive new mobile technologies and adoption.  2009 saw a huge spike in the adoption of smart phones, as well as, the release of new platforms, devices, and applications.  For the past 10 years I have focused on desktop web apps, but am VERY excited about the breakthroughs and innovation that has evolved in the mobile arena, especially with the offerings coming from Google and of course Apple.  As a consequence, 80% of my focus will be on mobile applications, both native and web.

2008 was the year of "web 2.0", 2009 was consumed by social media, and I predict that 2010 will be a digital Magellan on steroids with the Location Based Services popping up everywhere.  Evidence of this is already presenting itself, with the purchase of GeoAPI from Twitter, Google is offering "turn-by-turn" directions for free in the latest Android SDK, and Apple purchased a map tile software company.  The question will be how will all this data and the services used to manage the data be best served for the consumer.  The days of showing pins on a map are growing quite old.  It is time for more forward thinking, which is what the before mentioned companies do best.

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