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iOS development Learn basics [ iOS development with Swift Tutorial ] Video Course From CodeSchool 1.0

iOS development Learn basics [ iOS development with Swift Tutorial ] Video Course From CodeSchool

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How to Become an IOS Developer From Scratch?

If you wish to become an IOS developer from scratch, there are several skills you will have to acquire. The skills would be specifically related to IOS and Cocoa Touch Frameworks. Other than these skills, you should also have the knowledge about object-oriented principles, steps to make use of the source control and the language such as Swift or Objective-C required for performing IOS development. Once you are able to create an IOS app from the scratch, you can easily get job as an IOS developer.
  • The user interface should be comprised images, text views, labels, buttons and other controls that are stated within the code and also in Story Boards.
  • By making use of Auto Layout, you will have to make sure the views to be where it should be on the screen sizes and orientations.
  • User interactions have to be maintained using buttons, switches, table views, sliders and other controls.
  • The IOS app should also have multiple navigation types with tab bar controllers, page view controllers and navigation controllers and even the combinations of them.
  • Alerts and action sheets would be displayed along with the ability in handling input from them.
  • User inputs from the text views have to be accepted.
  • Scroll view comprised smoother scrolling is yet another necessity.
  • The data is sent and received from a REST API by making asynchronous network requests.
  • A Table View that displays list of data from a network request.
  • Web page has to be displayed in a web view.
To become an IOS developer, you should be able to engage in conversations about the topics as mentioned below.
  • Tips that make a good User Interface and the human interface guidelines IOS developers needs to follow.
  • The list of controls that are at your disposal and when you would think it as right in being used.
  • Know-how regarding the ways in which you could make use of a debugger in x-code for tracking down issues.
  • Knowledge about the application life-cycle including the methods that receives the call and when the methods get the call and what an IOS developer has to do with them.
  • Deep understanding about the concept of delegation. This may include a few examples of IOS APIs that makes use of the concept. From it, you should be able to create and make use of your own delegate API.
Android Vs IOS Development
Mobile platforms are clearly pushing desktop computers out of the market and according to latest statistics these will gain even bigger share of the market in the upcoming years. No wonder more and more old school developers had to requalify for creating games and applications either for iOS (made by Apple) or Android (made by Google), or even for both of them. Of course, the learning curve is quite fast for a skilled programmer, but still there are many new features that were introduced by the mobile devices industry.

Why only these 2 platforms have to be mentioned? Sure there is Bada, Nook, Kindle and Windows Phone, but these allow targeting only an extremely small audience when compared to the two strongest mobile platforms, and not everyone is willing to spend additional costs for creating the app solely for less popular platforms.

Key differences

From the user perspective, both iOS and Android are almost the same. Both come with widgets, allow multitasking and are quite stable and secure. On the other hand, from the developer perspective, there are significant differences among these two.

Most likely the key difference is the programming language that is used. iOS uses Java and Android uses C in its objective version. There are many flame wars all over the internet discussing which platform is better; we say it is a tie. The truth is that both come with decent application framework, and there is an enormous amount of documentation for both languages.

Moreover, there is a countless number of different development tools and 3rd party libraries available turning the whole development process into a quick ride. With that being said, it is really up to you if you favour Google or Apple, or more precisely Objective C or Java language.

Going cross platform

If the developer still wants to reach the biggest audience and monetize the app as much as possible, there is no better way than using some cross-platform development kit. Such a SDK allows the programmer to develop the application just once and run it on all platforms (that's what cross-platform stands for) making the development curve quite fast. However, there are always some drawbacks of this approach and some key factors have to be considered when deciding if to go cross platform or not.

Still, saving the both, money and time, using proper SDK became a standard among modern mobile applications developers.

Top 7 Trends in Developing iOS Apps for 2018
Over the years, the development of iOS apps has changed significantly. It is exciting to see the latest trends in this area. We've seen some of the most important updates on iOS 11 and brought along many features. With Apple bringing such great updates, iOS trends will surely become more relevant.

Let's review the upcoming trends in iOS application development in the coming year, 2018, and beyond.

1. In September 2017, iOS 11 revealed a list of some of the best features. One of the most important was the much noticed update, the Augmented Reality Apps.

Amazon announced a numerical application platform supported by Apple's ARKit. This special platform is well compatible with Apple's ARKit framework, which allows iPhone and iPad application developers to create augmented reality along with virtual reality and other 3D apps. Big brands have already begun to invest in the development of various platforms to support the ARKit framework. Therefore, we expect to see many more AR / VR apps for iPhone and iPad users in the future.

2. Apple brought along its machine learning framework known as Core ML. Currently, Apple uses this machine learning framework in various products such as Siri, Camera, and QuickType. iPhone developers can easily use this Core ML in their iOS applications to make them feature rich. To accomplish this, you may need to include some code lines within the apps in the framework code. Core ML has several libraries that incorporate computer vision techniques to recognize faces, the development of AI games, as well as the processing of natural languages. All of these 3 libraries will be the User interaction with deviceschange. It will increase security by allowing the apps to recognize faces to serve a few features. The gaming industry will surely experience some power in real gaming. With Core ML, iPhone developers will create highly interactive applications over the coming years.

3. Apple's Swift programming language continuously improves its position in the app development market. It is Apple's general programming language, precompiled for Mac OS, TVOS, and iOS. Apple introduced Swift 4 that Swift is much more powerful. It will remain to be easy to learn. Swift 4 is equipped with all Swift 3 strengths and has the ability to create both robust and scalable applications. Because of this update, iOS developers will be able to make the apps faster. This is done without compromising security features during app development. Apps developed with Swift 4 consume less storage space. In the year 2018, Swift 4 will provide much faster and safer iOS apps.

4. Siri remains a favorite among iOS device users as an intelligent personal assistant. Since its introduction, it has generated waves. It continues to improve, as Siri continues to understand what we are talking about and what we are looking for. Now, contextual learning together with artificial intelligence, Siri offers a GPS pin during messaging. Siri also appears as a task manager. It allows the user to access the Citi Mobile App and much more. Siris KI will become a major trend in 2018.

5. Apple's Home Kit is an Apple framework specifically designed for home automation. The idea is that the intelligent devices that are present in the household can communicate with each other. Siri can be used to guide her. At the iPhone Application development will take the creation of apps with Apple HomeKitz. It gives the attached devices the ability to obey orders. They are triggered by these commands or Siri. A centralized app can also be created to fully rationalize the home automation process. Apple's HomeKit will be sure to set trends in 2018 and beyond.

6. One of the main features of iOS 11 is the app called File Management Files. With this application, iOS users can manage different cloud apps in a single location.

With the Files app, the user can easily create their own dashboard to manage things in the cloud apps. It will not be necessary to manage things in different places. With this trend, as well as a feature of iOS 11, iPhone app developers can innovate. You can develop more robust iPhone applications. It allows users to improve connectivity with various file apps as well as the iOS experience.

Apple Makes Swift Open Source: What Is the Impact on App Development?
Worldwide Developers Conference (WWDC), Apple introduced Swift as a compiled programming language for iOS, OS X and WatchOS. Apple describes the Swift as safe, fast, interactive and modern programming language for iOS, OS X and WatchOS. At the recently concluded WWDC 2015, Apple announced its decision to make Swift open source later this year. The company also announced Swift 2.0 with a new error handling API, better performance, and a number of new features. As an open source programming language, it can now be used by small companies and freelance app developers. At the same time, like other open source technologies Swift will also be supported by a large and active community. So Swift 2.0 will have a huge impact on iOS and OS X application development.

How Swift 2.0 will Impact iOS and OS X Application Development?

Migration from Objective-C to Swift

With the introduction of Swift, most app developers would prefer to use Swift over Objective C. Swift also makes it easier for developers to write applications in a quicker and simpler way. Thus, it becomes essential for both beginners and seasoned iOS app developers to learn and use the new open source programming language.

Beginners can Learn and Use Swift Easily

Swift borrows a number of features from other programming languages like C#, Ruby, Python, Java and JavaScript. But it still lacks several advanced features provided by other modern languages. The developers familiar with these programming languages can learn and use Swift without putting any extra time and effort. In addition to using its simple syntax, the developers are also not required to use header files. At the same time, the programmers also have option to import C libraries and Objective-C modules to Swift simply using the import statements. Now it will be easier for developers to master the open source programming language and start writing iOS apps within a shorter amount of time.

Reduced Development Cost

Most developers prefer developing apps for iOS and OS X to get higher returns. A number of reports have also highlighted how iOS makes it easier for developers to monetize their mobile apps and get higher returns. But iOS app development is often considered to be more expensive than Android app development. As Apple is going to make Swift open source, the enterprises and developers can now use the programming language without paying any licensing fees and royalty. The open source programming language will further help small businesses and freelance developers to reduce development cost significantly.

Emphasis on the Latest Version of XCode

Before the release of XCode 6.0.1, developers have to handle bugs, unexpected errors and crashes while writing iOS apps in Swift. But Xcode 6.0.1 made it easier for programmers to write complex iOS apps in the programming languages. For instance, the Swift Interactive Playground included in Xcode 6.0.1 enabled programmers to write code in Swift and check the results instantaneously. Also, the code completion features of the Swift Interactive Playground makes it easier for beginners to learn the programming language and observe how it interacts with various APIs. So while using Swift 2.0, the programmers have to use the most recent version of Xcode and iOS emulator. Apple is expected release the upcoming version of Xcode with a number of new features and functionality to effectuate iOS app development with Swift.

New Language Features and Enhancement

In addition to making Swift 2.0 open source, Apple also includes several language features and enhancements in it. Thus, while using the open source programming language, the developers can avail a number of new features.

New Error Handling Model: Swift 2.0 will come with a new error handling model that is both natural and user-friendly. In addition to working with Apple SDKs seamlessly, the error handling model will further allow programmers to use commonly used keywords like try, catch and throw. Thus, now it will be easier for developers to check and eliminate the errors in their code quickly.

Option to Check If the API is Compatible with the Target OS: While choosing a specific API, the developers have to check its compatibility with older versions of target OS. As most APIs do not support older versions of the operating system, the developers have to put both time and effort to pick the right API that works with the target OS. The Swift compiler now makes it easier for programmers to check the compatibility of a specific APIs with target operating systems. If the API is not compatible with an older version of the OS, the compiler will show an error message. The compiler will further allow programmers to run the API on compatible OS by wrapping the code safely using #available blocks.

New Protocol Extensions: Swift 2 will also come with features to effectuate development of protocol-oriented apps. Along with adding protocol extensions, the open source programming language also uses these protocols extensively. Instead of using global functions, programmers can use Swift 2.0 to add methods to common types. Thus, they can easily chain the functions naturally, while making the code more readable.

Better Compatibility with Apple SDKs: Swift 2.0 is also designed to work seamlessly with various Apple SDKs. To work better with Apple SDKs, the open source programming language will come with two distinct features, i.e., nullability annotations and generics. The programmers are not required to use optionals frequently as the annotate API cannot return null. Also, the generic systems used by SDKs will enable programmers to store detailed type information directly in the code.

At this juncture, one may need to understand in detail, the feasibility of iOS developers shifting to Swift from Objective C . Some uncertainties still remain e.g. Apple has not revealed all information about Swift 2.0. That is why; the real and full impact on Swift as an open source programming language can be assessed accurately only when Apple reveals more information.

Top 10 Advantages Of Favoring Swift For iOS Development

The significant launch doesn't imply the death of Objective-C, while it will become the de-facto language for iOS app development for iPhone, iPad, Mac, Apple watch and more devices.

The language which was illustrated as Objective-C without C by the apple, is safe, modern, faster, compiler optimized and packed with a high level of interactivity enables responsive and consumer-facing application development a breeze.

However, the release introduced a dilemma of making a decision between the two OOP languages- Swift and Objective-C. It brought a lot of confusion to the development shops and created a room for the discussions.

On a concluding note, the Swift was declared as a winner in the years to come and when leveraged for iOS application development, it will bring lots of benefits to the top of the table.

Take a quick look at how the Swift can get you ahead of the game:

1) Less coding required

In Objective-C, the string manipulation, string concatenation or class division needs more coding and involves writing repetitive statements. In Swift, the length of coding is reduced to half with the addition of new operators.

Also, the need to memorize the token gets alleviated with string interpolation where variables can be directly inserted inline to the string. The likelihood of app crashes due to order mess up is reduced with type inferencing system.

2) Dynamic library support

The dynamic libraries support to Swift began after the release of iOS 8. Before this, just static libraries were there, although Mac is enjoying the dynamic library support from a long time.

Dynamic libraries are the executable code that allows the latest Swift apps to link the changes or updates that new versions of Swift language bring over the time in an automated fashion. Dynamic libraries are included within the app bundle during download, but they are external to the app executable, which mitigates the app size because the external code is linked only when the language evolve.

3) Easy to read

With clean syntax, Swift has become easier to read and write the code and look a lot like plain English. The removal of all the legacy conventions like parenthesis for conditional statements, @ symbol, semicolons to end lines, nesting of method calls inside square braces and pretty more has made the language expressive and the code cleaner.

In Swift, the comma separated list of parameters within parathesis is used for function and method calls to simplify the syntax, due to which the Java, C#, C++ or Python programmers can easily read and adopt the Swift.

4) Maintainability

For executable app creation, maintaining two code files is mandatory in the Objective-C to enhance the build time and efficiency. But, the legacy of two code file requirement was dropped by Swift with X-code and LLVM compiler.

The two compliers find out the dependencies, perform incremental builds and combine the implementation files (.m) and Objective-C header (.h) in one code file (.Swift) automatically. This way Swift minimizes the repetitive tasks, bookkeeping and workload thereby the programmers will get more time to focus on logic creation, and code quality improvement.

5) Faster and safer

In Objective-C, the null pointers reduce the app crash probability but introduces lots of bugs that eats away a good amount of time of the programmers to find and fix them.

On the other hand, in Swift language, the optional value is very clear as compiler error is generated for the bad code, which enables the programmer to fix the code quickly that saves the time and money. Also, during the run time crash, Swift triggers by stopping at the line of code where nil optional variable is used so that the error can be fixed off the bat.

6) Unified with memory management

In Objective-C, the Automatic Reference Counting is supported within object oriented code and Cocoa APIs, but not available for core graphics and procedural code, which in turn make the programmers responsible for memory management.

Instead, in Swift, all the memory management at the compile time is handled by the ARC as it works across both object oriented code and procedural code, and won't require programmers to do any context switches. Additionally, the need to run garbage collector to clean up the unused memory is not required.

7) No more name collisions

The unavailability of namespaces support leads to code file names collisions, which is a linker error and won't let the app to run. In Swift, the implicit namespaces based on the target where code file resides are given, that's why the same code file for multiple projects can exist without letting the build to fail.

With name-space identifiers, the classes or values can be easily differentiated and the open source libraries, frameworks or projects can be implemented on-the-fly, which relieve the stress of same code file name collision during open source project integration.

8) Performance

Under the hood, the changes are constantly made in Swift to improve the speed at which the app logic is run. The improved performance of GEMM algorithm by a factor of 1.4 and FFT algorithm by a factor of 8.5 are the great instances of it. The speed up development helps in saving huge bucks.

9) Playgrounds

With playground feature, the programmers get the space for experiments by writing a code or creating an algorithm and view its results on hand without having to wait uptil the project to completely built or emulator to test it.

It's more like editor window where the code gets compiled and run as soon as it's written, which aids in data visualizations. All the changes made during processing, from simple images to graphs to the finite control elements can be viewed in the real-time.

10) Open source

A year later after the release, the modern programming language Swift was declared as open source. The announcement made the language more popular, and highly used across various platforms or as a back end infrastructure.

Besides, the feedback from the community and developers' support has made the invaluable contribution to the improvements in the language.


Facebook App Development and IOS Development

When we speak about social networking websites, the first name which strikes our mind is the grand daddy of social networking, Facebook. It is the most well-liked & famous social networking website with millions of active users. Over a period of time, Facebook has become a great platform to market & promote any types of products or services online. Facebook has become a very powerful tool for businesses, as it is very cost-effective.

Today, Facebook application has turned out to be a boon for business owners. Till now, Facebook application has been a huge success. You will find numerous applications on Facebook, which include games, photo editor, funny apps and many others. These applications not only create brand image of the business, but also increase the revenue. Further, let's take a look upon some of the best Android Tablet Apps and also have some information on iPhone Development.

Android Tablet Apps
Although the amount of apps is less in the Tablet Section, some Android Tablet Apps are really good.

We have shortlisted some of the best Android Tablet applications which you can enjoy & the list is as follows:

1) GReader - Google Reader RSS app
Google Reader can be of great help to you, if you like to be updated about news across the web. It is widely used to know about the current affairs & the market conditions on the web.

2) Google Translate - translation app
Google Translate is the finest tablet-optimised app which Google has made. The translate app has a very useful feature where you can switch it to a conversation mode. After switching to this mode you can just speak into the tablet & it will produce easily readable translation.

3) Plume - Twitter app
You should upgrade this android twitter app to a third party client if you want the best experience. Its interface is very much similar to that of TweetDeck & it works just fine.

iPhone Development
Apple products are viewed as the most exceptional products in the whole Mobile and Technology market because Apple has transformed the portrayal of a mobile phone to an iPhone. iOS apps are broadly downloaded across the world by millions of users and the success of iOS Apps stresses on the need of smart iPhone Application developers in the Information Technology Domain.

To build good quality iPhone apps you need a steadfast & dependable team of experts in the mobile application development domain, especially for iPhone apps. Ascra Tech is a company that has skilled and technically experienced iPhone app developers that assist your company with inventive iPhone apps or softwares. With pre-defined approach and logic, Ascra's developers create user-friendly apps for the different versions of iPhone device. They create apps for various iPhone categories: 3, 3G, 3GS, OS, 4G and iPad. While creating apps for the iSO4 mobile, these developers take needful interest in comparing the specifications of the old version of iPhone 3G and 3GS.

Ascra leads the way by creating Cross Platform mobile applications that engages the users by cognitive functioning, touch tap or shake mobile to elicit vibrant animations, cutting edge audio and high resolution visual effects. You connect with Ascra if you want to develop good quality Facebook apps, Android Tablet apps or iOS apps for your business.


3 Things You Must Know Before You Start IOS Development
Now the three basic iPhone app types are web, native and hybrid apps. Web apps are those made using web technologies such as HTML, CSS, and Javascript and run on an iOS device through the Safari browser. They are not sold on the app store. Native apps are those written in a programming language such as Objective-C, C or C++ and compiled to run on an iOS device, most apps you see on the app store are native apps. Hybrid apps are those which are created using web technology, but use an interpreter which is compiled natively, these apps are run through a web browser embedded within a native app, and can be sold on the app store.

Now certain types of apps could face app rejection if they are made using cross platform development tools. Apple has stated that they don't want any apps made using these tools because these tools require a developer to wait for the tool maker to update in order to use the latest functionality of the hardware. The Apple way is to use their own SDK which can be obtained freely through their website.

The type of computer for iPhone development done the Apple way that you will need is one capable of running the latest version of Mac OS. Apple updates their SDK frequently, and whenever they do it tends to require a newer version of Mac OS X.
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