Today will see the iOS App
life cycle, mainly on
1)
The App Launch Cycle
2)
The View Controller Life Cycle
1) The App Launch Cycle
Lets
see as soon as you tap on any application icon to open any iOS app in your device springboard what will happen,
- As part of the launch cycle, the iOS system creates a
process and main thread for your app and calls your app’s main function on that main thread.
- The default main function
that comes with your Xcode project promptly hands control over to the UIKit
framework, it will initialize your app and prepares it to run.
Below flowchart (diagram from Apple’s developer docs:
https://developer.apple.com/library/ios/documentation/iphone/conceptual/iphoneosprogrammingguide/Art/app_launch_fg_2x.png) will show the
sequence of events that occurs when an app is launched into the foreground
The main function’s main job is to hand control to the UIKit
framework.
2) The View Controller
Life Cycle
Now lets
see once your app is launched then say your first screen (Root/Home View
Controller), how it will load in to the screen in other words the view
controller life cycle hierarchy,
If you are
creating your UI or View programmatically then the first method which gets
called is loadView, followed by viewDidLoad -> viewWillAppear
-> viewDidAppear and while moving
to the next screen or view Controller the hierarchy of methods are like viewWillDisappear
-> viewDidDisappear -> viewDidUnload
Note: In iOS 6 and later, viewDidUnload method is deprecated since
views are no longer purged under low-memory conditions.
viewDidLoad – Called only once during the initial load of interface
builder(.xib) file. Initial set up of view controller can be taken care here.
viewWillAppear – This method gets called just before your view appears
or renders on screen every time when you navigate or switch between different
views. Suppose if you want to update your view different while switching back
and forth based on some requirement for that kind of dynamic changes to the
views can be done here.
viewDidAppear – Once your view loads completely on screen this method
gets called and here you can handle further UI or functionalities w.r.t your
view controller like database call or whatever you want to do after loading
your view.
viewWillDisappear - This method is called before the view is
actually removed and before any animations are configured. Notifies the view
controller that its view is about to be removed from a view hierarchy.
viewDidDisappear - This method notifies the view
controller that its view was removed from a view hierarchy, here you can
perform additional tasks associated with dismissing or hiding the view.
viewDidUnload - Called when the controller’s view is released
from memory. In iOS 6 and later, clearing references to views and other objects
in your view controller is unnecessary. In iOS 6 and later, viewDidUnload
method is deprecated.
superb
ReplyDelete@Dinesh thankyou,,, :)
Delete1 number ;)
ReplyDeleteThank you :)
Deletenice
DeleteThank you :)
DeleteAwsome Explanation brother..............
ReplyDelete@Hitesh, thank you :)
Deletei want more tutorials from u
ReplyDelete@ravindra Firstly many thanks for liking and following my blog, yep sure I will come up with many more tutorials soon, since I was busy with my daily schedule I was unable to post frequently.
DeleteThanks :)
Nice blogs.
ReplyDeleteVideocon and stay in touch with your Contacts, Friends, and Loved ones.
Seamless Roaming across India. National Roaming is Pre-Activated on Videocon Prepaid Connection with Zero Monthly Rentals.
Tariff while Roaming anywhere in India.
It’s really amazing that we can record what our visitors do on our site. Thanks for sharing this awesome guide. I’m happy that I came across with your site this article is on point,thanks again and have a great day. Keep update more information..
ReplyDeleteiOS Training in Chennai
I am expecting more interesting topics from you. And this was nice content and definitely it will be useful for many people.
ReplyDeleteMobile App Development Company in Chennai
Android app Development Company in Chennai
ios app development Company in Chennai
It's interesting that many of the bloggers your tips helped to clarify a few things for me as well as giving.. very specific nice content. And tell people specific ways to live their lives.Sometimes you just have to yell at people and give them a good shake to get your point across.
ReplyDeleteMobile App Development Company
Android app Development Company
ios app development Company
Mobile App Development Companies
Thank you for sharing such a informative information with us. Keep on sharing the blog like this..
ReplyDeleteMobile App Development Company
Android app Development Company
ios app development Company
Mobile App Development Companies
Great article,we are providing IOS online training you can check it out
ReplyDeleteThanks for posting useful information.You have provided an nice article, Thank you very much for this one. And i hope this will be useful for many people.. and i am waiting for your next post keep on updating these kinds of knowledgeable things...Really it was an awesome article...very interesting to read..
ReplyDeleteplease sharing like this information......
Android training in chennai
Ios training in chennai
I am expecting more interesting topics from you. And this was nice content and definitely it will be useful for many people.
ReplyDeleteMobile App Development Company
Mobile App Development Company
Mobile app Development Companies
ReplyDeleteNice it seems to be good post... It will get readers engagement on the article since readers engagement plays an vital role in every blog.. i am expecting more updated posts from your hands.
Android App Development Company
great and nice blog thanks sharing..I just want to say that all the information you have given here is awesome...Thank you very much for this one.
ReplyDeleteweb design Company
web development Company
web design Company in chennai
web development Company in chennai
web design Company in India
web development Company in India
it is really amazing...thanks for sharing....provide more useful information...
ReplyDeleteMobile app development company
Being new to the blogging world I feel like there is still so much to learn. Your tips helped to clarify a few things for me as well as giving..
ReplyDeleteFitness SMS
Salon SMS
Investor Relation SMS
You have provided an nice article, Thank you very much for this one. And i hope this will be useful for many people.. and i am waiting for your next post keep on updating these kinds of knowledgeable things...
ReplyDeleteiOS App Development Company
Nice Article. Very useful & Informative
ReplyDeleteBest Android Training in Chennai, Velachery
Best ios Training in Chennai, Velachery
Best PHP Training in Chennai, Velachery
Best Dot Net Training in Chennai, Velachery
Nice it seems to be good post...
ReplyDeleteFreshers Jobs in Chennai
Nice blog..! I really loved reading through this article... Thanks for sharing such an amazing post with us and keep blogging...
ReplyDeleteios app development course
Nice it seems to be good post... It will get readers engagement on the article since readers engagement plays an vital role in every Texting API
ReplyDeleteText message marketing
Digital Mobile Marketing
Sms API
Sms marketing
Hey there, You have done a fantastic job. I’ll definitely digg it and personally suggest to my friends. I am confident they will be benefited from this web site.
ReplyDeletePSD to Wordpress
wordpress website development
Thanks for posting the useful information to my vision. This is excellent information,.
ReplyDeletemobile application training in hyd
This is one awesome blog article. Much thanks again ios app development online training Hyderabad
ReplyDeleteNice blog and absolutely outstanding. You can do something much better but i still say this perfect.Keep trying for the best. Hire iPhone Developers India
ReplyDeletenice blog!
ReplyDeleteThank you for sharing this great article, It involves very useful information.
iphone job Oriented course
iphone job training center
iphone training institute in bangalore
apple ios training institutes Hyderabad
Good article write and good Information share this Article. Android app Development company In India
ReplyDeleteGood Article write and Good Information Share IOS APP DEVELOPMENT COMPANY IN INDIA
ReplyDeleteNice post. Thanks for sharing and upgrading our information.
ReplyDeleteBest iPhone mob app training in Jaipur
It 's amazing article and useful for developers
ReplyDeleteiOS App Development Online Training
Extraordinary and helpful article. Making content consistently is extremely intense. Your focuses are roused me to proceed onward.
ReplyDeletedigital marketing
Magnificent design and great utilization of fluctuated media. Truly inside and out data also. Extremely like how you separate the points into a few subsections with their own pages.
ReplyDeleteiphone 8 plus case
The article is good.I got some knowledge about iOS.Thanks for sharing this blog.
ReplyDeleteiOS Training In Chennai | iOS Training Institute In Chennai
excellent, your write with skill and creating story, useful points. Thanks man.
ReplyDeletehttp://blog.jaskaur.in/
escorts in delhi
Independent Escorts in Delhi
Call girls in Delhi
Delhi Russian Escorts
Aerocity escorts
Mahipalpur escorts
Karol Bagh escort
Nice blog. Thanks for sharing such great information.Develop xamarin application Hire xamarin developer , Hire xamarin developer India
ReplyDeleteThe Content was super and useful.Thankyou for posting this blog.I got some knowledge.
ReplyDeleteiOS Training In Chennai | iOS Training Institute In Chennai
I liked the way of presention.Its good and Informative.Thank you for posting this article
ReplyDeleteiOS Training In Chennai | iOS Training Institute In Chennai
This article gave good information.Thank you for posting this article.
ReplyDeleteiOS Training In Chennai | iOS Training Institute In Chennai
This is an one of the excellent blog.I liked your way of presentation.I gained some Information.Thank you for posting this articleiOS Training In Chennai | iOS Training Institute In Chennai
ReplyDeleteThe Presentation of the article is good.I learned new topics.Thankyou for posting this blog
ReplyDeleteiOS Training In Chennai | iOS Training Institute In Chennai
Its really good article.I got new information.Tyhank you for posting this articleiOS Training In Chennai | iOS Training Institute In Chennai
ReplyDeleteAfter I read and endeavor to comprehend this article lastly amazingwe are for the most part appreciative for the presence of this article can include considerably more knowledge for every one of us. much obliged to you.
ReplyDeleteAccountants Brighton
I've been surfing on the web over 3 hours today, yet I never found any fascinating article like yours. It's enough worth for me. As I would see it, if all web proprietors and bloggers made exceptional substance as you did, the net will be basically more productive than at whatever point in late memory.
ReplyDeleteBrighton Accountants
I've been surfing on the web more than 3 hours today, yet I never found any stupefying article like yours. It's imperatively worth for me. As I would see it, if all web proprietors and bloggers made confusing substance as you did, the net will be in a general sense more profitable than at whatever point in late memory.
ReplyDeleteTax Advisors
definitely this would made by professional blogger. You are great buddy, getting help since 2017. thank you so much.
ReplyDeleteE Filing Services Dubai
Tax consultancy services in dwarka
Thanks for splitting your comprehension with us. It’s really useful to me & I hope it helps the people who in need of this vital information.
ReplyDeletepython course in pune | python course in chennai | python course in Bangalore
The knowledge of technology you have been sharing thorough this post is very much helpful to develop new idea. here by i also want to share this.
ReplyDeleteDevops Training courses
Devops Training in Bangalore
Best Devops Training in pune
Devops interview questions and answers
I am really very happy to find this particular site. I just wanted to say thank you for this huge read!! I absolutely enjoying every petite bit of it and I have you bookmarked to test out new substance you post.
ReplyDeleteangularjs interview questions and answers
angularjs Training in bangalore
angularjs Training in bangalore
angularjs Training in chennai
automation anywhere online Training
fantabulous blog. Its amazing to wonder here and goes through some best articles. Thank you.
ReplyDeletereal estate dealer in dwarka
This is a good post. This post give truly quality information. I’m definitely going to look into it. Really very useful tips are provided here. thank you so much. Keep up the good works.
ReplyDeleteJava training in Bangalore | Java training in Electronic city
Java training in Bangalore | Java training in Marathahalli
Java training in Bangalore | Java training in Btm layout
Java training in Bangalore | Java training in Jaya nagar
Great explanation, your article inspired me the most. Thanks for sharing
ReplyDeleteselenium Training in Chennai
Selenium Training Chennai
ios training institute in chennai
Digital Marketing Course in Chennai
.Net coaching centre in chennai
Future of testing professional
Digital Marketing Training Institutes in Chennai
Digital Marketing Classes
Digital Marketing Training in Tambaram
All the points you described so beautiful. Every time i read your i blog and i am so surprised that how you can write so well.
ReplyDeleteJava interview questions and answers
Java training in Chennai | Java training institute in Chennai | Java course in Chennai
Java training in Bangalore | Java training institute in Bangalore | Java course in Bangalore
Java interview questions and answers
Does your blog have a contact page? I’m having problems locating it but, I’d like to shoot you an email. I’ve got some recommendations for your blog you might be interested in hearing.
ReplyDeleteAWS Training in Pune | Best Amazon Web Services Training in Pune
I am really enjoying reading your well written articles.
ReplyDeleteIt looks like you spend a lot of effort and time on your blog.
I have bookmarked it and I am looking forward to reading new articles. Keep up the good work..
Java Training in Bangalore
Best Java Training Institutes in Bangalore
Java Course in Bangalore
Java Training Institutes in Bangalore
Java Institutes in Bangalore
Java Classes in Bangalore
hadoop training in bangalore
big data training in bangalore
Thanks for sharing this valuable information to our vision. You have posted a worthy blog keep sharing.
ReplyDeletehadoop training in bangalore
hadoop training in bangalore
big data training in bangalore
big data courses in bangalore
Java Training Center in Bangalore
Core Java Training in Bangalore
Inspiring writings and I greatly admired what you have to say , I hope you continue to provide new ideas for us all and greetings success always for you..Keep update more information.
ReplyDeleterpa training in chennai
rpa training in bangalore
rpa course in bangalore
best rpa training in bangalore
rpa online training
Thanks for the good words! Really appreciated. Great post. I’ve been commenting a lot on a few blogs recently, but I hadn’t thought about my approach until you brought it up.
ReplyDeletepython interview questions and answers
python tutorials
python course institute in electronic city
I prefer to study this kind of material. Nicely written information in this post, the quality of content is fine and the conclusion is lovely. Things are very open and intensely clear explanation of issues
ReplyDeleteData Science Training in Indira nagar
Data Science Training in btm layout
Python Training in Kalyan nagar
Data Science training in Indira nagar
Data Science Training in Marathahalli | Data Science training in Bangalore
I am really happy with your blog because your article is very unique and powerful for new reader.
ReplyDeleteClick here:
selenium training in chennai | selenium course in chennai
selenium training in bangalore | selenium course in bangalore
selenium training in Pune | selenium course in pune | selenium class in pune
selenium training in Pune | selenium course in pune | selenium class in pune
selenium online training | selenium training online | online training on selenium
Really very nice blog information for this one and more technical skills are improve,i like that kind of post.
ReplyDeleteDevops Training courses
Devops Training in Bangalore
Best Devops Training in pune
Devops interview questions and answers
All the points you described so beautiful. Every time i read your i blog and i am so surprised that how you can write so well.
ReplyDeleteData Science Training in Indira nagar
Data Science Training in btm layout
Python Training in Kalyan nagar
Data Science training in Indira nagar
Data Science Training in Marathahalli | Data Science training in Bangalore
I’ve desired to post about something similar to this on one of my blogs and this has given me an idea. Cool Mat.
ReplyDeleteangularjs Training in marathahalli
angularjs interview questions and answers
angularjs Training in bangalore
angularjs Training in bangalore
angularjs online Training
Hmm, it seems like your site ate my first comment (it was extremely long) so I guess I’ll just sum it up what I had written and say, I’m thoroughly enjoying your blog. I as well as an aspiring blog writer, but I’m still new to the whole thing. Do you have any recommendations for newbie blog writers? I’d appreciate it.
ReplyDeleteAdvanced AWS Interview Questions And Answers, Top 250+AWS Interviews Questions and Answers 2018
Advanced AWS Interview questions and answers | Top 110 AWS Interview Question and Answers
Advanced AWS Training in Bangalore | Best Amazon Web Services Training in Bangalore
Nice Blog, When i was read this blog i learnt new things & its truly have well stuff related to developing technology, Thank you for sharing this blog.
ReplyDeleteiPhone app training course in bangalore
iPhone job oriented course in bangalore
Best iphone training institute bangalore
iOS course fee in bangalore
This is quite educational arrange. It has famous breeding about what I rarity to vouch. Colossal proverb.
ReplyDeleteThis trumpet is a famous tone to nab to troths. Congratulations on a career well achieved. This arrange is synchronous s informative impolites festivity to pity. I appreciated what you ok extremely here
Selenium training in bangalore
Selenium training in Chennai
Selenium training in Bangalore
Selenium training in Pune
Selenium Online training
Thanks a lot for the information.
ReplyDeletecanon printer support phone number
hp printer support number
epson printer support phone number
canon customer service phone number
epson printer customer service number
hp printer customer service phone number
This blog is the general information for the feature. You got a good work for these blog.We have a developing our creative content of this mind.
ReplyDeleteThank you for this blog. This for very interesting and useful.
Java training in Chennai
Java training in Bangalore
Java online training
Java training in Pune
Java training in Bangalore|best Java training in Bangalore
You are doing a great job. I would like to appreciate your work for good accuracy
ReplyDeleteRegards,
Best Devops Training in Chennai | Best Devops Training Institute in Chennai
I feel really happy to have seen your webpage and look forward to so many more entertaining times reading here. Thanks once more for all the details.
ReplyDeleteDevops Training in Chennai | Devops Training Institute in Chennai
Your very own commitment to getting the message throughout came to be rather powerful and have consistently enabled employees just like me to arrive at their desired goals.
ReplyDeleteRPA Training in Chennai | Best RPA Training in Chennai
Web Designing Training in Chennai | Best Web Designing Training in Chennai
SQL Server Training in Chennai | Best SQL Server Training in Chennai
Digital Marketing Training in Chennai | Best Digital Marketing Training in Chennai
And indeed, I’m just always astounded concerning the remarkable things served by you. Some four facts on this page are undeniably the most effective I’ve had.
ReplyDeleteData science Course Training in Chennai | No.1 Data Science Training in Chennai
RPA Course Training in Chennai | No.1 RPA Training in Chennai
AWS Course Training in Chennai | No.1 AWS Training in Chennai
VIP Escorts in Delhi is here ready to mingle with your in just 6k. Contact Delhi VIP escorts provider and Book independent escorts in Delhi.
ReplyDeleteVIP Escorts in Delhi
VIP Escorts in Delhi
Independent Escorts In Delhi
VIP Escorts in Delhi
Independent Escorts In Delhi
Escorts in Delhi
VIP Escorts in Delhi
VIP Escorts in Delhi
Independent Escorts In Delhi
Feel the tender care of high profile escorts in Delhi. get a beautiful hot Delhi call girls in your arms.
ReplyDeleteHigh Profile Escorts In Delhi
High Profile Escorts In Delhi
High Profile Escorts In Delhi
High Profile Escorts In Delhi
Call girls In Delhi
High Profile Escorts In Delhi
High Profile Escorts In Delhi
Hey Guys, I am a hot lady from Independent Escorts In Delhi offering affection to erotic men and give tremendous delight when you get in touch with me for the administrations. I am a sweet and provocative young lady and have a massive appeal to pull in any person with no issue. I am a high-class call young lady and work just for no particular reason.
ReplyDeleteVip Escorts In Delhi
High Profile Escorts In Delhi
Independent Escorts In Delhi
Vip Escorts In Delhi
High Profile Escorts In Delhi
Independent Escorts In Delhi
Vip Escorts In Delhi
High Profile Escorts In Delhi
Independent Escorts In Delhi
Vip Escorts In Delhi
High Profile Escorts In Delhi
Independent Escorts in Delhi
Thank you for the great article I did enjoy reading it, I will be sure to bookmark your blog and definitely will come back from again. I want to encourage that you continue your great job, have a good day.
ReplyDeleteVip Escorts In Delhi
High Profile Escorts In Delhi
Vip Escorts In Delhi
Independent Escorts In Delhi
High Profile Escorts In Delhi
Vip Escorts In Delhi
High Profile Escorts In Delhi
Independent Escorts In Delhi
Independent Escorts in Delhi
High Profile Escorts in Delhi
Vip Escorts in Delhi
The High Profile Escorts girls are accessible nearly in all Delhi areas for grown-up diversion of the men. In any case, it could be troublesome difficult for you to trust that they give their administrations according to the desires for the men.
ReplyDeleteVip Escorts In Delhi
High Profile Escorts In Delhi
Vip Escorts In Delhi
Independent Escorts In Delhi
High Profile Escorts In Delhi
Vip Escorts In Delhi
High Profile Escorts In Delhi
Independent Escorts In Delhi
Independent Escorts in Delhi
High Profile Escorts in Delhi
Vip Escorts in Delhi
Hello, I read your blog occasionally, and I own a similar one, and I was just wondering if you get a lot of spam remarks? If so how do you stop it, any plugin or anything you can advise? I get so much lately it’s driving me insane, so any assistance is very much appreciated.
ReplyDeleteMachine Learning Training in Chennai | Machine Learning Training Institute in Chennai
Devops Training in Chennai | Devops Training Institute in Chennai
Data Science Training in Chennai | Data Science Course in Chennai
Selenium Training in Chennai | Selenium Training Institute in Chennai
Blue Prism Training in Chennai | Blue Prism Training Institute in Chennai
PHP Training in Chennai | PHP Training Institute in Chennai
Bigdata Training in Chennai | Bigdata Training Institute in Chennai
Power BI Training in Chennai | Power BI Training Institute in Chennai
Thanks for sharing Information to us. If someone wants to know about,I think this is the right place for you!
ReplyDeletemobile application development
Best mobile app development company
smart outsourcing solutions is the best outsourcing training
ReplyDeletein Dhaka, if you start outsourcing please
visit us: https://www.outsourcingall.com
Hi,
ReplyDeleteGood job & thank you very much for the new information, i learned something new. Very well written. It was sooo good to read and usefull to improve knowledge. Who want to learn this information most helpful. One who wanted to learn this technology IT employees will always suggest you take python training in bangalore. Because Python course in Bangalore is one of the best that one can do while choosing the course.
Really nice post. Thank you for sharing amazing information.
ReplyDeletePython training in Chennai/Python training in OMR/Python training in Velachery/Python certification training in Chennai/Python training fees in Chennai/Python training with placement in Chennai/Python training in Chennai with Placement/Python course in Chennai/Python Certification course in Chennai/Python online training in Chennai/Python training in Chennai Quora/Best Python Training in Chennai/Best Python training in OMR/Best Python training in Velachery/Best Python course in Chennai
It’s great to come across a blog every once in a while that isn’t the same out of date rehashed material. Fantastic read.
ReplyDeleteData science Course Training in Chennai |Best Data Science Training Institute in Chennai
I feel really happy to have seen your webpage and look forward to so many more entertaining times reading here. Thanks once more for all the details.
ReplyDeleteBest PHP Training Institute in Chennai|PHP Course in chennai
Best .Net Training Institute in Chennai
Dotnet Training in Chennai
Dotnet Training in Chennai
Dotnet Training in Chennai
training-hipaa.net, one of the strongest wings of our company, the Supremus Group is basically into providing HIPAA related training to all health care entities at different levels. Our unique training methodologies, different training methods, and flexible courses make us one of the strongest contenders in this field. Founded in the year 2006 with the intention of providing comprehensive HIPAA training to help the healthcare organizations meet their compliance standards, we have come a long way by venturing out into other streams of HIPAA training that focus on the security and privacy aspects at different levels.
ReplyDeleteHIPAA Training Officer Security