iPhone / iPad / iOS Interview questions Part 2

Creating shortcuts to iOS Simulators with XCode 6 onwards 3

In previous article, we’ve discussed several iOS Interview questions which covers some of the very basic/easy question-answers. In this post, we’ll continue adding more related interview questions on the same topic. Q: Describe App Extensions in iOS8 A: iOS 8 … Continue reading

Get average color from image and fill that color as a background

Creating shortcuts to iOS Simulators with XCode 6 onwards 3

Hello all here I post the code for retrieve average color of the image and return that UIColor directly those use into your image view background color. Same that kind of the functionality shows into iTunes  album image load image that time retrieve … Continue reading

Securely store Username and Password using keychain

Keychain_Locked@2x

Hi, Today I demonstrate how to store username/password into Keychain and how to access from keychain Using Keychain Service. The Keychain Services API provides a solution to this problem. By making a single call to this API, an application can store … Continue reading

Search and match word is exists in array or not using regex

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Hello, In array numbers of a string contain and that string match with another string which match that string is exist into array or not using regex we match. following code for checking using regex to match if string contain into … Continue reading

Proper understanding of 1x, 2x, 3x for iDevices

1x 2x 3x iPhone, iPad, iPod Touch display sizes

Device Type iPhone / iPod Touch iPad Scale 1x 2x 3x 1x 2x Size by Points 320 x 480 320 x 480 320 x 568 375 x 667 414 x 736 768 x 1024 768 x 1024 Size by Pixels … Continue reading

Asset Catalogs : Using Sliced images in XCode – iOS Development

Asset Catalogs - Using Sliced images in XCode - iOS Development

Asset Catalogs Use asset catalogs to simplify management of images that are used by your app as part of its user interface. An asset catalog can include: Image sets: Used for most types of images, an image set contains all … Continue reading

iPhone / iPad / iOS Interview questions Part 1

iOS Interview Questions Part 1

Recently, I’ve gone through several interview rounds. I would like to share my experience. Here, I’m not going to put the exact questions. Those will be part of next posts in this series. Initially, I would like to start with … Continue reading

Data Encryption Standard(DES) Encryption and Decryption

Yellow computer folder with key. Isolated 3d image

The Data Encryption Standard (DES) is a secret key encryption scheme adopted as standard in the USA in 1977. It uses a 56-bit key, which is today considered by many to be insufficient as it can with moderate effort be … Continue reading