Here are the collection of snippets to do CRUD operation with ZKSforce (Force.com toolkit for iOS).

Remember this is a SOAP based API, there is a new alternative library available from salesforce called MobileSDK for iOS.

Integrating iCloud with core data was easy when I found this tutorial, but I ran into few issues while implementing and testing it on devices. And here are the steps how I managed to solve it.

Update: I recently found this site called diawi.com which allows you to distribute the app similar to file-sharing sites, drag and drop ipa file and share the link to the testers.

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Yes, every post you come across suggest the same thing, hold your power button and home button for X seconds. Though it is true, unfortunately I had a couple of situations my iphone doesn’t respond to the key combinations. And some time it is very frustrating to hold your buttons so long.

Until recently I was not aware of the shortcut _Ctrl + Cmd + C _

It captures the complete content of the iPad simulator to the clipboard, You can save it to a file by File -> New from Clipboard with preview.app

Recent search on iTunes listed the Madison Area Technical College classes on iPhone development by Dr. Brad Larson

Session on OpenGL ES 2.0 recommended by Gurus. Go and download the complete sessions from here

Youtube link

Related Posts

• Call Me A Hypocrite: My take on Apple Event Sep 1, 2010 - Part I
• Call Me A Hypocrite: My take on Apple Event Sep 1, 2010 - Part II

iTunes 10

Another iTunes upgrade, I don’t want to see another 100Mb iTunes upgrade till next month. Many people were fighting over the icon, Guys! they have changed the boring icon after a decade.

Only yesterday I got a chance to view the Keynote video. You can also download the video from iTunes for Free.

TL;DR

Apple version of the texture

background_linen.png

Ever since I installed the iOS 3.2 SDK I was in love with the iPad/Safari background fabric texture.

Angry Birds is one great app in Apple App Store that worth every penny (Full version is only $0.99)

I am not a great gamer, I give up on games too early. But this Angry Birds is one hell of a game (next to Road Rash & NFS II) that makes me addicted for a long time.

• iPad didn’t replace common tasks. Steve was referring his notepad on stage:). Old habits die hard.
• Steve can still memorize 24 countries and repeat them in the same order. Bravo! Good job Steve.
• Yes, he appreciated Microsoft for their HTML5 demos.
• Now the revenue will be shared  60-40%. 40% of iAd revenue to Apple.
• Will FaceTime work if there are quite a few devices on the Wi-Fi network?
• If FaceTime is Open, then H.264 and AAC too?
• If the same front side glass was used in the back of iPhone 4, can we replace the backside glass for the front in case of damages to the front?
• 29$ for bumb ( a band covers the antennas’). Come on Steve, let the poor guys live with the iPhone/iPad cover business.
• FaceTime is open since it use many OpenSource tools & standards.

are few points I noticed during Keynote.

I was always disappointed with Apple Keynote pages. It allows you to stream and watch the videos with QuickTime which is not great for streaming and videos are not HTML5 yet. Another restriction with QuickTime is, you need to have QuickTime Pro to save the video.

Warning: My observations are biased as I’m not an Apple Fanboy, at least right now (was one in the past, I both respect and hate Apple & Microsoft)

Notes.app of miPhone was not allowing me to save any new notes. This was after restoring the manual backup of notes.db. I have taken the backup of my Address book, notes and images data with iPhone Explorer.

Check dependencies Code Sign error: Provisioning profile

[BEROR]Code Sign error: Provisioning profile ‘579ACFD8-827A-4325-F623-DB8CDD5081DB’ can’t be found

Anyone who is relatively new to iPhone development could easily identify this issue is related to the invalid provisioning profile.

They only check the binary to see if they use any private API nothing other than that. Sometimes they reject the app and give you a reason that it doesn’t fit with their HIG standards. Eg., one of our app got rejected for this reason. They said + button should be used when you use add contacts to the app from Address book. But the same + icon was used in USA Today app and is available in appstore. Moreover we just copied the idea to have + to show larger images.

What if iPhone provides an accessibility option for users with bigger finger?

I found that pinch to zoom and screenshot capturing can be considered as good photo cropping tool. This was done in the following sequence screenshot + zoom + screenshot. You can see the same with the UIPageControl aligned little left instead of center.

Please find the below presentation which explains obj-c for web developers (js/php). This is taken from SXSW'10. I’m also searching for the video will share if I come across any.

Note: Apple reported this as fixed in version 3.1 and above. The screenshot above was taken with an iPhone OS 3.0 on a 2G device.