Archive for the “Core Services” category
iOS And JSON Part 2 – Deserialize JSON To Native Objects
by John Muchow on March 6, 2013
Use the Apple class NSJSONSerialization to deserialize JSON into native objects in Objective-C.
iOS And JSON Part 1 – Serialize Objects To JSON
by John Muchow on March 4, 2013
How to serialize iOS Objective-C objects into JSON using Apple’s NSJSONSerialization class.
How To Programmatically Dial Phone Number With And Without User Interaction
by John Muchow on February 20, 2013
iOS trick to programmatically dial phone call with and without user interaction.
How To Get Available Fonts On iPhone Or iPad Using Blocks
by John Muchow on February 5, 2013
Back in November of 2008 I wrote an example to show how to get a list of all the fonts installed on a device: Available Fonts on the iPhone In this post I will show you how to get the (…)
Troubleshoot Push Messages By Logging APSD Process
by John Muchow on December 4, 2012
Troubleshoot Apple (APNS) Push Message – Technical Note TN2265 tn2265_PersistentConnectionLogging.zip download
Create Universally Unique Identifier (UUID) The iOS 6 Way
by John Muchow on November 5, 2012
Code to create a Universally Unique Identifier (UUID) aka Globally Unique Identifier.
Read info.plist Key-Value Pairs
by John Muchow on October 16, 2012
Read info.plist valies in an iOS app.
View All Notifications Sent To Your Application
by John Muchow on September 13, 2012
This tip shows how to see all notifications that are generated while running your application. This can come in handy if you need to understand the types of notifications available and the order they occur, with the idea that your (…)
Lists Of Custom URL Schemes
by John Muchow on July 16, 2012
Mobile Developer Tips has written a number of posts about how to define and call Custom URL Schemes: – Check If Custom URL Scheme Is Defined – Launching Your iPhone App Via Custom URL Scheme – Launching iPhone Apps With (…)
Check If Custom URL Scheme Is Defined
by John Muchow on July 15, 2012
Custom URL Schemes are the Apple approved way for one application to communicate with another. For example, you can launch the phone application to make a call using the custom URL tel://. Likewise, you can call a third party (non (…)
Display All First And Last Names In The Address Book
by John Muchow on June 11, 2012
This tips demonstrates how to print the first and last names for all entries in the iPhone Address Book to the console. Start by including the following import statement: #import <addressbook /AddressBook.h> </addressbook> Also, add the AddressBook.framework to your project. (…)
Creating Repeating and Non-Repeating Timers
by John Muchow on February 28, 2012
Let do a quick run through of the basic operation of the NSTimer object. Timers are generally divided into one of two buckets, repeating and non-repeating. In either case, a timer event is fired after a specified amount of time (…)
NSClassFromString to Check for Class Availability
by John Muchow on February 15, 2012
I recently received a question about how to check if a class is available – the specific question was in regards to the TWTweetComposeViewController. There are two common ways to check for a class. First, if a feature is tied (…)
Remind Users to Restart Your App
by John Muchow on February 8, 2012
This tip shows you how to create a local notification that will be trigged when a user exits your application. I would recommend you use this sparingly, for example, if the user was in the middle of setting up configuration (…)
Get List of Installed International Keyboards
by John Muchow on December 27, 2011
The NSUserDefaults object is typically used to save/restore your application related preferences, configuration data, etc – see Write and Read User Preferences for more information. In addition to application specifics, there is a system wide default list that is available (…)
