1.What is meant by unwrap and forced unwrap?

var myString:String? 

 myString = "Hello, Swift 4!" 

 if myString != nil {  

print( myString! )

} else {  

print("myString has nil value")

} 

 Automatic unWrap:

var myString:String!

myString = "Hello, Swift 4!" 

 if myString != nil {

 print(myString)

} else {

print("myString has nil value")

}

2.What is defer and where its used? 

 The defer statement is executed after the return! This allows you to accomplish things that can be accomplished in no other way Example: func defer() {  print("Beginning")  var value: String?  

 defer {  

 if let v = value {   

  print("Ending execution of \(v)")   

} 

 } 

 value = "defer function" 

 print("Ending")

} 

 3.Difference between let and var? 

•   Let is an immutable variable, meaning that it cannot be changed
• Var is a mutable variable, meaning that it can be changed 

 4.Difference between static and const? 

 Static: Like declaring the id of a table view cell which most likely won't change during its lifetime 

Const: its change during ruintime 

5.Form Dictionary like following format?

{

“Data”:[{“name”:”sample1”},{“name”:”sample2”},{“name”:”sample3”},{“name”:”sample4”}]

}

Example:

Var insideArray = [Dictionarty<String,AnyObject>]()

Var Dict = Dictionary<String:AnyObject>() 

insideArray = [[“”:””],[“”:””],[“”””]]

Dict = [“Data”:insideArray]; 

6.What is guard keyword? 

 Guard keyword, which could be used to ensure that various data is configured ready to go 

Example:

func submitTapped()

{ 

   guard username.text.characters.count > 0 else {  return

}

 print("All good")

} 

7.What is lazy keyword? 

 The point of lazy properties is that they are computed only when they are first needed, after which their value is saved.  

8.What is Extension?  

 Extensions add new functionality to an existing class, structure, enumeration, or protocol type. This includes the ability to extend types for which you do not have access to the original source code (known as retroactive modeling). Extensions are similar to categories in Objective-C. (Unlike Objective-C categories, Swift extensions do not have names.) 

 9.Get the following output 

 Var name :string? = nil Name = “sample1” Print (name) 

 Var name: string! Name = “sample2” print(name) 

10.Difference between Any and AnyObject ?

AnyObject can represent an instance of any class type. Any can represent an instance of any type at all, apart from function types. 

1) Explain strong and weak reference?

2) Difference between atomic and nonatomic?

3) What is mean by optional? Why will you use?

4) Features of Swift?

5) How to check whether core data particular object having null or not?

6) What are the UIKIT delegates used your project?

7) Explain sorting algorithm?

8) How handle tableview when scroll cell and loading image?

9) When i trigger local notification how do i know which class under the execution?

10) What is size class?

11) Difference between block and NSOperation?

12) Explain about GCD?

13) What is Completion handler?

14) Difference between core data and sqlite?

15) Delegate methods for location manager?

16) Why use model class?

17) Explain about MVC?

18) Which one is your challenging task when you work on a project?

19) Explain extra work while doing push notification?

20) What are the delegate used in tableview?

1. Application delegate methods
2. View controller delegate methods
3. Table view datasource and delegate methods
4. What is a size class
5. Can we have multiple UIWindow in an iOS application.
6. How to override a UIView and draw to new contents to it.
7. How to redraw a UIView?
8. What is the use of load view?
9. Can we retain a delegate method ?
10. Sax vs Dom parsers
11. NSXML parser delegate methods
12. Incase if we need to parse a large xml document which parser would be efficient and why (DOM or SAX) 

1. Core data layers  
2. Sqlite vs core data 
3. How to encrypt a core data database and Sqlite DB
4. How will you handle a database corruption. 
5. How will you initiate a post request?
6. NSUrl connection delegates
7. How to cancel an url request?
8. How to make your server requests secure? 
9. What are the design patterns you worked on? 
10. Project management tools used ?
11. Defect management tools used ?
12. What is Agile ?
13. Crash reporting tools used ?
14. Encryption tools used ?
15. oops concepts ? Abstraction, inheritance, encapsulation, polymorphism

1) What is NSArray?

NSArray is Objective-C's general-purpose array type. It represents an ordered collection of objects, and it provides a high-level interface for sorting and otherwise manipulating lists of data.

2) What is NSMutableArray?

NSMutableArray (and all other classes with Mutable in the name) can be modified. So, if you create a plain NSArray , you cannot change its contents later (without recreating it).

3) What is NSDictionary?

NSDictionary - derived from the word called entry. Each entry consists of one object that represents the key and a second object that is that key's value. Within a dictionary, the keys are unique.

4) What is JSON?

JSON (JavaScript Object Notation) is a lightweight data-interchange format. It is easy for humans to read and write. It is easy for machines to parse and generate. Text can be read and used as a data format by any programming language.

5) What is JSON Serialization?

JSON is a format that encodes objects in a string. Serialization means to convert an object

into that string, and deserialization is its inverse operation. When transmitting data or

storing them in a file, the data are required to be byte strings, but complex objects are

seldom in this format.Without using JSON

<7b226964 223a2275 35383738 37373334 31222c22 636f6d6d 616e6422 3a224745

545f5553 45525f49 4e464f22 2c227661 6c756522 3a22227d>

6) What does the NS prefix mean?

Next Step

7) What is Instance Method?

An instance method is a method that's only available on a particular instance of a class,

only after said instance of the class has already been created. A class method is a method

that can be called on the class itself, no instance necessary. For example:

YourClass *object = [[YourClass alloc] init];

[object someInstanceMethod];

8) How to convert an int to an NSString?

int theinteger = 10;

NSString *string = [NSString stringWithFormat:@"%d", theinteger];

9) How to convert String to Int

NSString *theinteger = @”10”;

int a = [theinteger intValue];

10) iOS UIViewController lifecycle

ViewDidLoad:

Called when you create the class and load from xib. Great for initial setup and one-time only

work.

ViewWillAppear:

Called right before your view appears, good for hiding/showing fields or any operations

that you want to happen every time before the view is visible. Because you might be

going back and forth between views, this will be called every time your view is about to

appear on the screen.

ViewDidAppear :

Called after the view appears - great place to start an animations or the loading of

external data from an API.

ViewWillDisappear/DidDisappear :

Same idea as ViewWillAppear/ViewDidAppear.

ViewDidUnload/ViewDidDispose:

In Objective C, this is where you do your clean-up and release of stuff, but this is

handled automatically so not much you really need to do here.

11) What is Delegate?

A delegate allows one object to send messages to another object when an event happens

Eg: NSURLConnection class. NSURLConnection has three common delegates:

- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error

- (void)connectionDidFinishLoading:(NSURLConnection *)connection

- (void)connection:(NSURLConnection *)connection

didReceiveResponse:(NSURLResponse *)response

NSString *theinteger = @”10”;

int a = [theinteger intValue];

1. 1 .Different between delegate and data source
2. Different between objective -c and swift
3. What is URL Session Data type?
4. What is extension
5. What is singleton pattern?
6. what is debugging?
7. Life cycle of application and view controller
8. What are the networking frameworks you have experience with?
9. What is web services with authentication
10. What is the new features in your app. Explain
11. Do you have any app in purchase. Explain
12. What is push notification?Do you have any experience with push notifications
13. What is multithreading?
14. what is the main advantages of swift?
15. Do you post any apps in App Store?
16. What is Safe Area Layout?
17. What happen if we implement an another entity into to the existing project? App will crash or not. Explain.
18. How do you implement firebase. Explain
19. How do you set three buttons in a navigation bar?
20. How do you set constrains for a label, image view and button in view controller ?
21. Whether the Constrains for iPhone and iPad is same or not?
22. Project description (locumap)
23. Have you ever worked on without main.storyboard?
24. What are the steps for cocoa pods?
25. Why do we use cocoa pods instead of downloading GitHub application?
26. What is location manager. Explain.
27. What is synchronous and asynchronyous?

XXXXX

Mobile   :  XXXXX

Email      :  XXXXX

CAREER OBJECTIVE

To contribute my skills and knowledge for the development of the company and to shape myself while serving the company.

SUMMARY

• Knowledge on Objective-C, Swift, X-Code, Cocoa Touch and the iOS SDK.
• Experienced in Designing the UI for the application by using UIKit Framework.
• Willing to involve in different aspects of development and assimilate new concepts and Ideas.
• Knowledge on SQLITE Integration and Connection.
• Knowledge on JSON Parser and XML Parser pull RSS feed from a server.
• Knowledge on publishing applications in iTunes.

ACADEMIC RECORDS

 MCA :  Sri Manakula Vinayagar Engineering College June - 2015 70.79%

 BCA :  Community College, Pondicherry University May - 2011 56.17%

 HSC      :  SDA HSS Pondicherry March-2008 68.75%

 SSLC :  SDA HSS Pondicherry March-2006 70.02%

SOFTWARE EXPOSURE

• Programming Language    : C, Objective-C and Swift.
• Environment : X-Code.
• Framework : Cocoa, Cocoa Touch.
• Web Services : Xml Parser, SOAP and JSON Parser.
• Database : Core Data, SQLITE.

CERTIFICATION COURSE

• Got Certification in IOS APPLICATION DEVELOPMENT from Greens Technologies Pvt Ltd 2015.

Duration: Sep 2015- Dec 2015.

  ACHIEVEMENTS

• Won 2st Prize for Paper Presentation titled “ ZFORCE TOUCH SCREEN” in“Itech-Fest-14”

by IFET COLLEGE OF ENGINEERING, Villupuram.

• Creation of “MCA GROUPS”, “Placement Site” for my College (www.smvec-placements.webs.com)
• Won 1st Prize for “Short Film Event’rsquo;’ in SACICONS’11 - Sri Aravindar Arts and Science

College, Puducherry.

PARTICIPATIONS

• Participated in “Marketing Event” in symposium TECH WIZARD’11 organized by

St Joseph’s College of Arts and Science, Cuddalore.

• Participated in “Paper Presentation” in symposium  EFLAIR’11 organized by Achariya

School of Business and Technology, Puducherry.

• Participated in International Workshop on Current Corporate Technologies “Ruby on

Rails and Drupal”.

PROJECT PROFILE

PG - Academic Project

Project Title                  :     ELECTRICITY WEB PORTAL

Project Description     :     This web application is to automate the manual operations of maintaining the various activities like employee details, customer details and portal interactions between the admin, employee and consumers.

Platform                        :     PHP (Front End), My SQL 5.1 (Back End)

Duration                        :     6 months

PERSONAL DETAILS

Name                             :     XXXX

Father’s Name             :     YYYYY

Mother’s Name           :     ZZZZZ

Sex                                  :     XX

Date of Birth                :    &nnbsp;YY

Language Known         :     Tamil, English (Speak, Read and Write)

Hobbies                         :     Internet Surfing, Playing shuttle.

Place   : CHENNAI

Date    :

(XXX)

 XXXXX

iOS Developer(Fresher).

Mobile: YYYYY

E-Mail: ZZZZZ

Objective:

Completed M.C.A with First Class (2013) and Looking for iOS Development (Fresher). To join the organization, where I can contribute my skills, talent in the growth of the organization.

• Knowledge on Objective-C, Swift, X-Code, Cocoa Touch and the iOS SDK.
• Experienced in Designing the UI for the application by using UIKit Framework.
• Willing to involve in different aspects of development and assimilate new concepts and Ideas.
• Passionate to learn new technologies and implementing.
• Knowledge on SQLITE Integrationand Connection.
• Knowledge on JSON Parser and XML Parser pull RSS feed from a server.
• Knowledge on publishing applications in iTunes.

Academic Qualification:

• Master of Computer Applications (MCA) from Anna University with 1st class.
• Bachelor of Computer Science (BSC) from Periyar University with 1st class.
• HSC fromState board with 1st class.
• SSLC from State board with 1st class.

Technical Skill:

• Programming Language : C, C++, Objective-C and Swift.
• Environment : X-Code.
• Operating System : Windows XP/7/8/10, MAC OS X and iOS.
• Framework : Cocoa, Cocoa Touch.
• WebServices : Xml Parser ,SOAP and JSON Parser.
• Database : CoreData, SQLITE.

Certification:

• Certified in iOS Application Development at “Greens Technologies”.

Non-IT Experience Details:

1. Company : Accenture Services Pvt. Ltd., CDC3, Chennai.

Experience : 4 months and 15 days of experience in Healthcare claim

adjudication.

Role : Transaction Process Associate.

Duration : 01-03-2015 to 15-07-2015.

• Company : HTC GLOBAL SERVICES PVT. LTD., Tambaram Sanitorium.

Experience : 1+ year of experience in E-Publishing ITES department.

Role : Data Conversion Specialist, Quality Analyst and XML Checking.

Duration : 08-01-2014 to 19-01-2015.

Strength:

• Willingness to Learn.

• Reliable Team Player

• Self-Confident

• Hard Worker.

Weakness:

• Quite Emotional.
• Sometimes getting Shy.

Personal Information:

Date of Birth : XXX

Marital status : YYY

Mother tongue : Tamil

Nationality : Indian

Languages : Tamil and English

Address : ZZZ

Declaration:

I hereby declare that the above-mentioned information is correct up to my knowledge and I bear the responsibility for the correctness of the above-mentioned particulars.

Date:

Place:YYYYY       XXXXX

xxxxxxxx.,

Noxxxxxxxx
XXXXXXx
Chennai – 600118

Contact: 1234567890
E-mail:

CARRIER OBJECTIVE

To pursue a highly rewarding career, seeking for a job in challenging and healthy work environment where I can utilize my skills and knowledge efficiently for organizational growth.

WORK EXPERIENCE

1 year 5 month of professional experience in software analysis, design, development, testing, implementation and support for iPhone applications from Net Access.

TECHNICAL SKILLS

Knowledge on Objective-C, Swift, X-Code, Cocoa Touch and the iOS SDK.
Experienced in Designing the UI for the application by using UIKit Framework.
Willing to involve in different aspects of development and assimilate new concepts and Ideas.
Basic working knowledge on Swift Programming.
Basic Knowledge about Native Platform – (Android)
Knowledge on SQLITE Integration and Connection.
Knowledge on web services like SOAP, REST, XML and JSON.
Knowledge on Audio and Video Integration.
Knowledge on publishing applications in iTunes.
Passionate to learn new technologies and implementing.

Skill Set

Programming Language C, Objective – C, C++, J2EE, MySql
Operating system Mac OS X, Windows 10, Ubuntu
IDE Net Beans 8, X-code 7.0.1
Database Core Data, SQLite, Plist
Academic Credentials

Bachelor of Electronics and Communication Engineering (2014)
XXXXXXXX of Engineering, XXXXX, Chennai-124.
Aggregate: 67

Higher Secondary Education (2010)
Xxxxxxx Matriculation Higher Secondary School, Surapet, Chennai-66.
Aggregate: 80

Secondary Education (2008)
XXXXXX Higher Secondary School, Tirupattur, Vellore.
Aggregate: 67


PROJECT Experience

DC Fire and Emergency Medical Services Department (DC FEMS)

Device : iPhone
Environment &Tool : objective c 2.0, Storyboard
IDE : iPhone SDK 8.0, X-code 6.1.

URL: https://itunes.apple.com/us/app/dc-fire-emergency-medical/id727617999?mt=8

DESCRIPTION

FEMS app is designed to deliver the information about the MPD nearby you it access your location and revert the information as per your location. It also shows the nearest wifi availability and fire stations. And also it has animal shelter information also nearby your location. User can access all those by voice command also.

FEATURES

Voice Command
Map
Info about Fire and EMS Department of Washington DC

RESPONSIBILITIES
Creating Functional document.
Coding completion using X-code.
Fixing the issues raised by code reviewer as part of code walkthrough and review.
Fixing the defects raised by testing team and business team.
Deploying the application in App store-iTunes.

Kumaraguru College of Technology

Device : iPhone
Environment &Tool : Objective c 2.0, Storyboard
IDE : iPhone SDK 5.0, X-code 4.5.

URL: https://itunes.apple.com/IN/app/id953742728?mt=8

DESCRIPTION

The KCT app is described about the Kumaraguru College of Technology and it is designed to deliver information about various events, programs.KCT is specially designed for the Kumaraguru College of Engineering.
FEATURES

Overview of KCT
KCT Calendar
Campus Map

RESPONSIBILITIES
Creating Functional document.
Coding completion using X-code.
Fixing the issues raised by code reviewer as part of code walkthrough and review.
Fixing the defects raised by testing team and business team.
Deploying the application in App store-iTunes.

Beyond Education NZ App

Device : iPhone
Environment : Objective C 2.0, Interface builder.
IDE : iPhone SDK 7.0, X-Code 5.1
Frame work : Core Graphics Framework, Quartz core Framework.
URL: https://itunes.apple.com/us/app/beyond-education-nz-app/id890901330?ls=1&mt=8
DESCRIPTION
Beyond Education New Zealand provides education consultancy services in NZ for students who wish to study & live in New Zealand. Our local expertise along with industry leading free settlement package and free gateway to the industry training program would ensure a rewarding and fulfilling experience, this application use to send your education credential to assess your application to New Zealand universities or colleges.
RESPONSIBILITIES
Creating Functional document.
Creating High Level Design and Low Level Design documents.
Coding completion using X-code.
Fixing the issues raised by code reviewer as part of code walkthrough and review.
Creating UTP, Unit test scripts to complete Unit Testing.
Fixing the defects raised by testing team and business team.
Deploying the application in App store-iTunes.
STC

Device : iPhone
Environment : Objective C 2.0, Interface builder.
IDE : iPhone SDK 7.0, X-Code 6.3
Frame Work : Core Location Framework, Mapkit Framework

URL: https://itunes.apple.com/us/app/stc-one-stop-hub-to-apply/id980578893?mt=8
DESCRIPTION
STC app that allow you to apply a new or renew your EMA license (Electrical installation license). Let us manage your electrical installation, our appointed LEW will inspect your electrical installation, certify that the electrical installation is fit for operation and submit license renewal application on your behalf to EMA. You won’t have to go through the slow process and miss a license renewal anymore.
RESPONSIBILITIES
Creating Technical document, work flow documents.
Creating High Level Design and Low Level Design documents.
Coding completion using X-code.
Fixing the issues raised by code reviewer as part of code walkthrough and review.
Creating UTP, Unit test scripts to complete Unit Testing.
Fixing the defects raised by testing team and business team.
Deploying the application in App store-iTunes.

Strength/Inter Personal Skills

Willingness to learn and comprehensive in problem solving capabilities.
Hardworking and dedicated towards work.
Ability to take up responsibilities and plan the work.
Ability to complete and deliver assignments on time.
Good team worker with strong communication and interpersonal skill.
Personal Details

Ability to cope up with different situation & Active Participant.

Father’s Name : XXXXX
DOB : XXXXXXX
Marital Status : Single
Gender : Male
Religion : Hindu
Nationality : Indian
Languages Known : English, Tamil.

I do hereby declare that the above information is true to the best of my knowledge.

XXXXXXXXXX

How to install cocoapods in iOS

Open your terminal in MAC machine.

STEP 1 - sudo gem install cocoapods

STEP 2 - cd select your project location

STEP 3 - touch podfile/pod init

STEP 4 - open -e podfile

----------------------------------------------------------------------------------------------

https://cocoapods.org/

Sample Projects from github

AmDots:

AMDots is a loading indicator with dots moving like google loading, there is three type of the loading, scale, jump and shake, each one of them gives you a cool loading to show to the user

Project 1 :

Cocoapods

https://cocoapods.org/pods/AMDots

Github

https://github.com/Abedalkareem/AMDots

CocoaControls

https://www.cocoacontrols.com/controls/amdots

Installation Guide

target 'MyApp' do

 pod 'AMDots', '~> 1.0'

end

Project 2 :

Alamofire is an HTTP networking library written in Swift.

Cocoapods

https://cocoapods.org/pods/Alamofire

Github

https://github.com/Alamofire/Alamofire

Installation Guide

target 'MyApp' do

 pod 'Alamofire', '~> 4.7'

end

----------------------------------------------------------------------------------------------

STEP 5 - pod install

STEP 6 -Close your current Xcode project and  open your current workspace project

What is workspace ?

The project contains multiple project that is called workspace.

STEP 1 - Open the terminal to run the command:

STEP 2 - $ sudo gem install cocoapods

STEP 3 - Enter Admin password

STEP 4 - It will take some time to install

STEP 5 - once it installed

STEP 6 - Set up POD for Xcode project file

STEP 7 - Open terminal (if not opened)

STEP 8 - Change the directory to location of your Xcode project file.

STEP 9 - Run command to create : $ touch Podfile

STEP 10 - $ open -e Podfile

STEP 11 - Add names into Test file like : pod ‘AMDOTS'

STEP 12 - save the test file

STEP 13 - Run command : $ pod install

STEP 14 - wait for to insatll all library which are mentioned in podfile

STEP 15 - After installation it will create .workspace project than always open on clicking it.

Dynamic Creation of Label, Image view, Button

• Open Xcode and create new project.

• Give the product name for a project.

• Open the ViewController.swift and we have write the code here.

Dynamic Creation of Label

• Let is used for declaring constant values that are not changed further in the coding.

• We declaring constant value for label as label.

• The label that is to be displayed is declared in Dynamic creation as

     UILabel( ).

• The height, width, position of the text field is given as Core Graphics Rectangular(CGRect).

• Set an alignment for the label. And give the text for label to show in simulator.

• Self.view.addSubview(label) is used to run the entered code in the simulator, without this code the coding won’t work.

Dynamic creation of Button

• Let is used for declaring constant values that are not changed further in the coding.

• We declaring constant value for button as button.

• The button that is to be displayed is declared in Dynamic creation as

     UIButton( ).

• The height, width, position of the text field is given as Core Graphics Rectangular(CGRect).

• Set the background color for the button.

• Self.view.addSubview(button) is used to run the entered code in the simulator, without this code the coding won’t work.

Dynamic Creation of ImageView

• Var is used for declaring variable that can changed further in the coding.

• We declaring variable for ImageView as imageView.

• The button that is to be displayed is declared in Dynamic creation as

     UIButton( ).

• The height, width, position of the text field is given as Core Graphics Rectangular(CGRect).

• Set the image for ImageView to show in simulator.

• Self.view.addSubview(imageView) is used to run the entered code in the simulator, without this code the coding won’t work.

Run and execution of simulator

• After finishing the coding part check for any error and fix the error and RUN the program by follow:

• The run button runs the program and select the iPhone Simulator and RUN the program.

• After that the simulator will open and It will show the dynamic creation of label, button, imageview  

Collection View

UICollectionView is similar to UITableView except the fact that it’s more
customisable. The main difference between a UICollectionView and a UITableView
is that a UICollectionView can display more than one column and it supports
horizontal scrolling. The below article shows how to develop a basic collection view.

1. Open Xcode and create a new Single View App.

2. For product name, use “CollectionViewTutoria”l and then fill out the
Organization Name and Organization Identifier with your customary values.
Enter Swift as Language and choose Next.


3. Move to Main Storyboard, which present in Project Navigator


4. Drag and Drop collection view from Utility Area[Library Pane] to View
Controller which present in right bottom area.


5. Create a new class file for collection view cell, just right click on project
[CollectionViewTutorial] and select new file in Project Navigator. In this tutorial
we are not using this class. Just of understanding we are creating this class. It
is used when you need to customize inside a cell (eg: adding label, image,
etc&helliphellip;)


6. Select Cocoa Touch Class and click Next button.


7. Now need to select the option for the new file, provide as below details.
Class: CollectionViewCellCustom [User Defined Name]
SubClass: In drop down select “UICollectionViewCell”
Language: Swift


8. Now click Finish button, it will generate class for UICollectectionViewCell


9. Goto MainstoryBoard, select CollectionView cell and in Utility area[Inspector]
select custom class, from drop down list choose our new class
file[CollectionViewCellCustom]


10. Now provide any user defined identifier name. Here it provided as “cell”


11.Right click on Collection view, drag and drop delegate and datasource to
connect view controller


12.In Project Navigator click, now move on to viewcontroller.swift file to code.
Please provide the below code into your file. Two protocols are mandatory
when we call UICollectionViewDelegate and UICollectionViewDataSource.
The Two protocols are NumberofSections(Return type should be int, which
tells how many cells is required for this view controller) and CellForItemAt(In these
we need to establish what need to present in the each cell, in this tutorial we just
added a background colour for the cell).



13. Now run the project and the result will be shown as below.

ADPAY MOBILE PAYMENT INDIA PVT LTD

Job Description

Keyskills

Company Profile:

NORTH SHORE TECHNOLOGIES

Job Description

Keyskills

Company Profile

SPAN TECHNOLOGY SERVICES

Job Description

Keyskills

Company Profile:

GENERAL QUESTIONS

1) Explain strong and weak reference?

2) Difference between atomic and nonatomic?

3) What is mean by optional? Why will you use?

4) Features of Swift?

5) How to check whether core data particular object having null or not?

6) What are the UIKIT delegates used your project?

7) Explain sorting algorithm?

8) How handle tableview when scroll cell and loading image?

9) When i trigger local notification how do i know which class under the execution?

10) What is size class?

11) Difference between block and NSOperation?

12) Explain about GCD?

13) What is Completion handler?

14) Difference between core data and sqlite?

15) Delegate methods for location manager?

16) Why use model class?

17) Explain about MVC?

18) Which one is your challenging task when you work on a project?

19) Explain extra work while doing push notification?

20) What are the delegate used in tableview?

UI

1. Application delegate methods
2. View controller delegate methods
3. Table view datasource and delegate methods
4. What is a size class
5. Can we have multiple UIWindow in an iOS application.
6. How to override a UIView and draw to new contents to it.
7. How to redraw a UIView?
8. What is the use of load view?
9. Can we retain a delegate method ?

PARSERS

1. Sax vs Dom parsers
2. NSXML parser delegate methods
3. Incase if we need to parse a large xml document which parser would be efficient and why (DOM or SAX) 

DB

1. Core data layers  
2. Sqlite vs core data 
3. How to encrypt a core data database and Sqlite DB
4. How will you handle a database corruption. 

URL REQUESTS

1. How will you initiate a post request?
2. NSUrl connection delegates
3. How to cancel an url request?
4. How to make your server requests secure? 

PROJECT MANAGEMENT

1. What are the design patterns you worked on? 
2. Project management tools used ?
3. Defect management tools used ?
4. What is Agile ?
5. Crash reporting tools used ?
6. Encryption tools used ?
7. oops concepts ? Abstraction, inheritance, encapsulation, polymorphism 

CURRENT LOCATION PERMISSIONS

Just add this in info.plist

These all are current location permissions

NSLocationAlwaysUsageDescription --- I need Location

NSLocationWhenInUseUsageDescription --- I need Location

privacy - location usage description --- I need Location

https://stackoverflow.com/questions/25916841/cllocationmanager-startupdatinglocation-not-calling-locationmanagerdidupdateloc

  locationManager = [[CLLocationManager alloc] init];

  locationManager.delegate=self;

  locationManager.desiredAccuracy=kCLLocationAccuracyBest;

  locationManager.distanceFilter=kCLDistanceFilterNone;

  [locationManager requestWhenInUseAuthorization];

  [locationManager startMonitoringSignificantLocationChanges];

  [locationManager startUpdatingLocation];

 Now it will call your didUpdateToLocation definitely.

Parsing The Plist Value In TableView

Open Xcode and create new project.

Give the product name for a project.

Open the ViewController.swift and we have to write the code here.

Creation of Plist

Right click on the project name and click the New File.

Search for Resource, Choose the Property List and Click Next.

• Give name for the Plist and Create the Property List.
• The Plist will be created and Plist have Keys, Type and Value.
• We have to create some Arrays,Dictionaries and Values.
• We will use the keys for appending the data.

We created Arrays, Dictionaries and Values. Also, We created the keys and values for append the data.

Creation Of Tableview

• Go to Main.storyboard and Top right corner of Xcode we have a Utilities. Click that Utilities and that will show the Inspectors and Libraries.
• Then search Table View in Object library filter. Select tableview and drag & drop in the Viewcontroller.

• In every Table View we need to put Table View Cell. Then only,we can show the data.
• Set reuseidentifier name for Table View Cell.

Then create @IBOutlet for Table View.

Data from plist

• We need to create array value for append the data from plist and also we use the value for tableview to show the appended data.
• The variable b is created with Var. Var is used for declaring variable that can changed further in the coding.

var b = [“�]
@IBOutlet weak var tabview: UITableView!
override func viewDidLoad() {
super.viewDidLoad()
let file = Bundle.main.path(forResource: “proper�,ofType: “plist�)
let dic = NSDictionary(contentsOfFile:file!) as! [ String:Any]
for dats in arr
{
if let gems = dats as?[String:ANy]
{
b.append(gems[“one�] as! String)
b.append(gems[“two�] as! String)
b.append(gems[“three�] as! String)
} }

• We create one variable inside the viewDidLoad(). The variable name is “fileâ€Â�.
• The variable created with the let. Let is used for declaring constant values that are not changed further in the coding.
• The variable (file) is used for finding the plist path in the project. The Bundle.main.path line is a code for finding the plist path.
• We created another constant variable (let) “dicâ€Â�. It is used for assigning the plist dictionary value.
• Again, We need to create a constant variable (arr). It is used to assigning the plist array value inside the dictionary value.
• Here,we created a for loop for the reload the data from plist. And we created the “datsâ€Â� dummy variable.
• We have to create if let to control unwanted errors in program. It is also used to append the data.
• Here,we created dummy variable as “gemsâ€Â�. That is stored as dictionary.
• The empty array is used here to append the data from plist. We gave keys to pick the value. Every value have the key. So, the keys are need to pick the data from plist.

Load the data in tableview

import UIKit
class ViewController,UITableViewDataSource,UITableViewDelegate
{
func tableView(_ tableView:UITableView,numberofRowsInSection:Int) -> Int {
return b.count
}
func tableView(_ tableView:UITableView,cellForRowAt indexPath: IndexPath) -> UITableViewCell {
let cell = tableView.dequeueReusableCell(withIdentifier: “cool�,for:indexPath)
cell.textLabel?.text = b[indexPath.row]
return cell
}

• In every tableview we need connect datasource, delegate to use functions and load data.
• We need two function to load the data. We took the functions from datasource.
• One function is numberOfRowsInSection. It is used for how many rows need in tableview to show.
• Another function is cellForRowAt. It is used for reusecell in tableview.
• Inside the function we use label to show the data in tableview.

Run and execution of simulator

• After finishing the coding part check for any error and fix the error and RUN the program.
• The run button runs the program and select the iPhone Simulator and RUN the program.

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