For iOS developer, it’s important to keep up-to-date with the latest updates that happens in Objective-C and Foundation – and in iOS 7, there are some important changes that they must know about.
1. New return type
A new type has been added to Objective-C, called instance type. This type can only use with a return type from an Objective-C and this s used as a hint to the compiler that the return type of the method will be an instance of the class in which any type of the method belongs.
2. New Foundations:
One of the big update that comes with this release is of a new foundation that lies in the networking. In fact, that there’s a complete chapter that is dedicated to it in iOS 7 Tutorials.
3. Native implementation for encoding and decoding NSData:
Data is one of most important things that developer needs to deal with a lot when programming. NSData is the common foundation class that captures raw bytes and provides effective solutions for manipulating those bytes, as well reading and writing data to and from a file. In NsData, there is one common task of encoding and decoding for which there’s been no native implementation available in the earlier versions that is available in the iOS 7 version.
It’s often happening that totally new classes get added to the Foundation. It’s a pretty stable framework; the reason behind this is that there is a new core class which is not required too often. However, iOS 7.0 comes up with an entirely new class named NSProgress. This new class aims to deliver progress reporting throughout Objective-C code, that separating the progress of individual components. For example, if any developer performs a few tasks which can monitor its own progress and report back to its parent task.
Base64 is a group of binary-to-text encoding schemes that represent binary data in machine understand ASCII format. These schemes are mostly used where there’s a requirement for encoding the binary data to be stored or transferred to deal solely with textual data. This ensures the data remain unchanged without any type of modification.
So many times Timers often find homes in apps that perform periodic tasks. As useful as they may be, the problem is that they may runs constantly when several timers are in use. This means the CPU is constantly active. Moreover, it would be much more efficient if the CPU woke up, performed a series of tasks and then went back to sleep. To resolve this issue, In iOS & apple has added a tolerance property to help accommodate this behavior.
Thus, this version of iOS 7 able to helps developer to create more effect and easiest solutions with the help of Objective-C language. Moreover, this version of iOS solves many technical difficulties that are face by developer while developing their iPhone apps using Objective-C language.