If you submit an iOS app to Apple, and they get back to you with the unfortunate news that your app crashed.. you have to (of course) fix the bug and resubmit again.

To help you, Apple engineers will

• explain how they did it,
• attach a screenshot, and
• attach a crashlog

This is what you should do.

If you are starting out iOS development, there are some good tips for you from Stuart Hall:

http://stuartkhall.com/posts/ios-development-tips-i-would-want-if-i-was-starting-out-today

There is only one point which I don’t agree on:

Story Boards Are Just For Rapid Prototypes

This is a research from surveying 100 mobile developers.

Interesting to note is that 18 weeks =

• time to build 1.3 Boeing 777
• time to build 1/231 of Giza Pyramid
• time to take Apollo 11 to the moon

Not long ago, I posted about a guide to iOS multiple devices resolutions.

There is a similar, but more complete cheat sheet from Ivo.

Here is 1 of the table:

For the other guides on display PPI, icons size and other iOS design elements, refer to the cheat sheet.

I posted a tip before on how you can find the real cause of exception in Xcode.

There is another feature which you can enable to help in debugging.

NSZombie is an option that helps to trace overreleasing of objects.

I was researching on popup/modal views to use, and finally decided on RNBlurModalView, which has a nicer blurred background effect.

Nonetheless, others are good depending on your use.

Here are 7 custom popup views for iOS:

I wrote a Phewtick Hack a few days ago.

It started out as a hack via their RESTful API to automatically scan QR code and get Phewtick points ($$$).

Today, Phewtick released a new version 3.2.0, which includes 2 new features: timeline and messaging.

I took a look at their API (again)..

My biggest problem with SVN is that I don’t have good Mac software supporting SVN. For Git, I have the free SourceTree app.

Hence I decided to migrate some of my ancient repos that were still on SVN.

It is actually easy.

Making a beautiful iOS app icon takes some hard work. Even more work now that there are more devices with different resolutions.

This post is to provide some of the tips in the making Apple’s trademarked iPhone rounded icon.

One of the greatest feature with GHUnit is that it supports unit tests that perform asynchronous stuff.

The ExampleAsyncTest from GHUnit documentation provides a glimpse of what you need to do. However, it still lacks warning you on the common pitfalls.

This is step by step of how you can use GHUnit async test: