Build A Simple Android App With Kotlin

[@htaehxela]

A couple of things that helped me understand this video a bit better: 1) doing the fella's crash course and building a couple of command line apps 2) don't copy exactly what he is doing. Make an app with a similar concept (e.g. an app a waiter would use to note down food / drink orders) change the variable names and the names of the files, this way you have to figure out what is going on. The more different you can make it while keeping the same basic elements, the more it will make sense to you after building it

[@RockstahRolln]

You nailed it! Precisely how to go about it to really understand all the logic involved in creating the App!

[@elghs2001]

This has always given me the best results. nothing like typing all of this out but not *really* knowing why. By taking your suggestion, you can begin to connect the *why* dots on all of these concepts.

[@joshuachesney7552]

If you're just getting into android dev and this video confused you like it did me, its because this is not the default way to make UIs in android anymore. The thing now apparently is to use jetpack compose to create your UI entirely through kotlin instead of using XML.

[@housaindiallo2140]

Have you found a video that explain how it works now?

[@joshuachesney7552]

@@housaindiallo2140 Yeah this one worked for me kzbin.info/www/bejne/bJDafJKLmZ1gY5I

[@VYBE-Red]

@@housaindiallo2140 why have u?

[@sodalish]

He states at the beginning he is showing you how to do it natively in Kotlin so it can be used in a wider implementation. Compose has always been there and he has courses on it too. It is best to understand the fundamentals before extending into other ecosystems. Best.

[@tapiohonkanen6384]

In my opinion it would be more educational, if you showed how the app works part by part in the emulator instead of coding everything at once and showing the end result just at the end. Otherwise, very good tutorial!

[@fusacarsas5331]

Ur te

[@fusacarsas5331]

H TTO yr

[@fusacarsas5331]

Uff futse a trsP

[@cradleofrelaxation6473]

Totally agree. If possible implement code and demonstrate bit by bit!

[@TruongNguyen-ix1mr]

same opinion

[@rajasmahadule2697]

You lost me when you started making TodoAdapter Class, it's so wierdly complex.

[@henrypowell3496]

yah it sure is

[@seahindeniz]

Same. I wish he would rather go by explaining and mostly showing them even what happens when things don't add. I mean the Adapter class or etc, that he used in his code. So that, it at least makes sense why things needed to be written.

[@crackedrebelion1094]

Same here so damn hard

[@user-ov5nd1fb7s]

Its not complex, its dumb. Design patterns should not be used for every possible piece of code. Mainly the java people are to blame for bringing this garbage onto the world. Most people are fed up with it and this is why languages like Go and Rust are on the rise.

[@soffi2719]

Me too

[@dojafoja]

Thank you for your videos. I've been struggling to find good kotlin tutorials, until I found this channel. You're very clear, to the point, and I understand it when you explain it. I come from a long, strictly Python background and the transition isn't easy.

[@Tobi9012]

I can confirm that! I also have a Python background. Good tutorial

[@dojafoja]

@@Tobi9012 Excellent tutorial! I was leaning back and forth between Dart and Kotlin and casually learning both, simultaneously. Dart just "clicked" right away but I kept struggling with Kotlin's syntax. This guys knows how to explain it.

[@GGShinobi77]

"of course we will use the Dark Theme here" -> me hitting thumbs up!

[@shrikantdhayje3490]

Same I Also Like The Video At Same Time 👍

[@GabrielTobing]

The fact that it even wants us to use the light theme by default is just horrendous XD

[@abdellatif.x8127]

Lol all Android studio courses used light theme except this one 😂😂

[@ArifBillahOnGoogle]

I don't know why, but I feel like android development is extremely complex unnecessarily compared to web development. You have to write so much code to print so little.

[@oneilobi822]

very true and it is very hard to manipulate stuff that match your thinking

[@IgorogI1000]

You are completely correct. I had the same feeling. Android is unnecessarily complex, with too much OOP, hexagonal architecture, and so on just to do a simple screen...

[@theman7050]

Ikr, brother?😢

[@eduar2tc904]

That is why it is better paid and less saturated

[@ishc1753]

Why did I get unexpected token error when adding the implementation under dependencies

[@pierce9019]

You dont really explain what a lot of the functions do after the half point of the video. Theres also a major issue at 47:40 where you cant continue to follow along because it wont let you link tvTodo and the other var

[@tehyanyang6959]

same issue for me too, couldnt bypas that issue and I tried to add a reference in the todoviewholder class but still could not resolve the matter

[@jahnvikakkar2267]

samee did you find a fix for it by any chance?

[@sundernewar2002]

im also stuck here

[@langer_mo9790]

yep, I am here

[@ml_o90x]

yup, got stuck just now

[@ichigokurasaki_33]

The way he so said "**Of course** we will choose the dark theme here." so confidently :D

[@noodle-eater]

Awesome, simple tutorial yet have the full features of a todo app. can't wait to try it.

[@vishnupradhaban2189]

I am new to android development. I have been searching for good tutorials for the same. And I found this. It's really helpful.

[@FlooferLand]

Thank you for actually teaching stuff Most beginner tutorials out there just go all in expecting people to know how Android Studio's styling works even when they're aimed at beginners and i've watched half of the video so far and i'm understanding everything EDIT: Nevermind, i lost all track of anything once he got over the styling and i already know other programming languages well

[@liamwade1003]

hahahaha...... me too :(

[@oduorotisjnr.e5723]

😂😂 me too ... Damn I started the video off and I was like finally... Then baaam! He just ruined it

[@oduorotisjnr.e5723]

Did you ever find any good tutorial for beginners?

[@FlooferLand]

@@oduorotisjnr.e5723 I didn't unfortunately, gave up on making Android apps.

[@oduorotisjnr.e5723]

@@FlooferLand Ah bummer. I decided to do it the old fashioned way and got a book, read it and now I know alot that most tutorials don't teach. They'll claim to give you tutorials and by the end you'll be a dev.I Its a lie. There are plenty of things you need to learn. Anyway, i hope to see you back again in the dev world.

[@achirasilva2567]

Bro has brains all over that hair. Great tutorial btw 🔥

[@yiyou9625]

Finished! Great video, thank you Philipp

[@0RedTree0]

Thank you so much for explaining the logic again at the end!!

[@sylvainfinette82]

Great video! at the minute 47:12, my editor does not detect the tvTodoTitle nore cbDone objects defined in the item_todo.xml, because of this I cannot complete the apply function. Any idea about what I missed? (I am an absolute beginner)

[@arushk]

same

[@nomr6788]

same here

[@Paco1337]

You need id 'kotlin-android-extensions' in build.grandle app

[@alvinkk2338]

@@Paco1337 then?

[@alvinkk2338]

@@Paco1337 even my position is red

[@RAINE____]

You've made an excellent video. It's a shame the same can't be said for Android's development platform. This is so complex for what could be done in a few lines of HTML. But again, thanks for the video. You couldn't have done a better job.

[@lordvakx1226]

Honestly nothing compares to the flexibility HTML and CSS.

[@facundosierra1501]

Wtf

[@overratedprogrammer]

Mobile app development desperately needs an overhaul. You shouldn't have to deal with a whole ecosystem to run a simple script

[@electrocarbid]

Wow! Great Video. But the android programming needs horrible actions with lots of referencing, etc. Looks like building a nuclear recator to boil a cup of tea to me :)

[@SuperLittleTyke]

@@electrocarbid That's kinda what I thought after watching the first 20 minutes. Maybe I'll watch the rest later. Or find a different tutorial. Visual Basic: 1. Run VB. 2. Double click command button in the toolbox to place a new button on the blank form. 3. Double click the button to view the code window. 4. Type MsgBox "Hello world". 5. Press F5 to run the program. 6. Click No (you can save it later) 7. Click the button. Done.

[@muhammetcavus6995]

It actually has a little bit intermediate level. Those who have programming experience will enjoy that video very much. Thanks for this great video.

[@kiskunfelegyhaza2]

Sz8di

[@amishasherekar1908]

47:56 I am not getting import option

[@davidoregan_]

Same, did you ever figure it out?

[@Progamer-rq9yx]

@@davidoregan_ did you figure it out yet

[@ParadoxWorks]

Not the tutorial we deserved, but the tutorial we needed!

[@LUKFUNTV]

What do u mean?🙄

[@vinay_dias]

I just thought about switching from website development to app development and here your notification popped up

[@samuelvalentine7846]

Why's re you switching if I may ask?

[@vinay_dias]

@@samuelvalentine7846 trying to learn I mean still a student trying to get my hands on everything I can

[@samuelvalentine7846]

@@vinay_dias yeah me too...I currently work with flutter but I want to get started on the MERN stack because almost all business that need an application would need a website first.. That's I'm confused whether to do MERN and put flutter on hold.. what do you think?

[@vinay_dias]

@@samuelvalentine7846 I'm more of a game developer lol sorry no idea about industry standards

[@samuelvalentine7846]

@@vinay_dias nice, so what's your twitter handle maybe we could learn a thing or two from each other

[@mihirraval2076]

Thank you, this video was a big help to get a refresher on implementing recyclerview with Add, Delete operations in kotlin.

[@maryannadelman4438]

Philipp, do you plan to make a video showing how to connect this todo list with a database so that items that are added to the list are retained when the app is closed and reopened?

[@sich254]

i gat great of things that has really realized android isn't hard. Thanks Mr Lackner

[@james_dev_vn]

Very nice, very easy to understand for those who interacting with Android Dev for the first time, of course u have to listen to what he said so you can understand it, not to skip the session

[@gibranfirdausy3458]

i cant find import at 47.58

[@otooleger]

Thanks very helpful . Just one criticism. The dark background makes it almost impossible to read the code from the screen.

[@noriega211]

Great video ❤. Very informative, i like how you take the time to explain every step of the process. Thankyou for sharing your knowledge.

[@captalextamonan6641]

Mant thanks for this video. Latest one so far, it worked with AS beta 4.2, just a few updates, Excellent work

[@Gigatless]

Bruh I swear this guy hides a robotic ratatouille in his hair who does all the teaching

[@zipicontent8012]

watching this for just 30 min, I understand more then a half a year of lessons i followed at shcool...

[@hanzhang4533]

非常好的视频，看到了kotlin在安卓开发中的优势，很好的学习例子。

[@anticipatient]

Nice video. I was watching at 1.5x and trying to keep up, thinking "man this guy types fast." :D

[@ussamakhelfa9524]

Great one .. keep doing this .. that's will make stronger and halp others to love more what they really wanted to love doing .. u just remind me of what a big part of me wanted to always been .. thank you for that ..

[@nahomalphageek2516]

I felt bad when I heard Java support is dyeing, but I know I have to learn Kotlin as a beginner despite being Android dev for over 7 years. Great tutorial, this should get me started.

[@nathancook8452]

I agree, I really liked Java

[@chrislyko2240]

late to this party, lol, Java is not dying it's one of the top languages behind Python and Javascript. Many large companies still rely heavily on it due to it's major support. They just released Java 20 back in March, if anything this language is growing. It might start dying in 25 years but even then I highly doubt it

[@Manlikerik8]

good riddance java

[@lucianowod]

Haven't finished the video but love the comparison to web development. It was helpful because I'm new to app dev but have some experience in web dev.

[@yannickmussche5068]

literally 8:56, suddenly you have the main.kt as an xml file. where does it come from?

[@yannickmussche5068]

res/layout/ does not exist.

[@sapy4124]

@@yannickmussche5068 when creating project, create it using Empty Views Activity.... the Projects through Empty Activity are to be done with Jetpack Compose i guessssss

[@NoahCalar]

Thank you@@sapy4124 ! I was spinning my wheels like crazy trying to figure this out. Your response needs to be a pinned comment so people with the latest version of AS can figure this out.

[@carelesssleeper]

@@yannickmussche5068 : maybe you found the solution already, but here goes anyway - you need to select 'Empty Views Activity' when creating a new project. Then you get the 'Activity_main.xml' tab from the start, and also the layout folder under res

[@anarbekomurzakov8089]

Good job Philipp! I liked it a lot.

[@nandiniverma6127]

Another app added to my bucket list for making

[@Terik17]

had to give up near the end because apparently we have slightly different versions of the IDE and I couldn't solve a step... i wouldve liked a bit more explanation of each step tbh so i understood what was being done and what other options there were

[@stephentellez5718]

great video, just did it in order to practice and it went well, thanks for sharing

[@anujgorasia]

Thanks much Brad. Love your content.

[@michaelchristensen8350]

Hello thanks for this great tutorial :-) I was thinking what about making a part two, where we make it so the app can save data even after we close and reopen it ?

[@josecuervo186]

Literally, I followed the course from start to end (yes, I had to install Android Studio) and got the app working (well, I had to read the pinned comment to add plugin). Thanks Philipp, you are awesome!

[@arminbuch9386]

Where's that pinned comment? Which plugin? I don't see any. I'm trying to follow the tutorial, too, but I fail at about 47:30

[@andymukonkole]

@@arminbuch9386 thats exactly where am stuck too

[@arminbuch9386]

@@andymukonkole See my other comments

[@ducphd]

@@arminbuch9386 i just try to solve this issue and just you add `id 'kotlin-android-extensions'` in `plugins` tag in build.gradle inside app module, and sync project

[@claudioparra8507]

@@andymukonkole I made the change but thought that the sync was automatic. after you do the change you have to click the elephant with a downward blue arrow to do that sync. That does the trick.

[@itzikovadia851]

Thanks u a lot This is exactly what I needed.excellent explaination

[@amypellegrini1732]

Great tutorial! Saved me a ton of hours

[@sojiczapredsednika]

Great jump in tutorial ! Thanks.

[@colinf6266]

Thank you for making this!

[@abhaychauhan9591]

More of such projects pls 🙏

[@Doodle_Animates0]

I’ve used and developed for both Android and iOS, and as a result, I’m not really biased. They are both good in their own ways. However, i will admit, because iOS has a proprietary language (Swift, SwiftUI or Objective-C and UIKit) it is SO much easier to develop an app, java and kotlin is very complex to me. Swift has a relatively straightforward syntax.

[@anuradharanasinghe9512]

Really good and informative content .Thank you.

[@andreiharahliad6210]

Very good explanation to start writing android app. Thanks

[@ericnyaga603]

Great Video still in 2024 Thanks a latte

[@pubuduchathurangeekanayake7297]

Flutter Dev be like "Look What They Need To Mimic A Fraction Of Our Power"

[@VVMohanVlogs]

Thanks for your time.

[@software-sage]

Very clear tutorial. Well done!

[@brrruski8436]

Super cool tutorial for kicking start, thx!!!!

[@drygordspellweaver8761]

Just a tip: take pauses between thoughts and sentences. It’s okay to give the listener time to digest the information, and would help you gather your thoughts for more articulate and meaningful delivery.

[@LILBETATRUTH]

Ok thank you for helping but it was hard understanding what you were trying to say. I still went through the whole video but if you could explain more of the parts in depth, that would help my understanding by a mile. Thank you for the video!

[@wipros3567]

So, in short. You've made to-do list. In 1 hour. With all that code. All respect to you, but I think I'll be fine with online app makers for now

[@maryannadelman4438]

Love your teaching style. Easy to follow for someone like me who is such a newbie to coding. One question: I followed the tutorial and it came out fine except that the list wouldn't retain the entries. However, I did not do this as a standalone app - I added the todo list as an activity to an existing app I'm making. Would that be the reason the entries disappeared once I closed the activity and went to another page? Maybe there's a bit of extra code I'm needing? Thanks again for the tutorial. Really helpful for a 50+ lady like me who's such a rookie

[@jonan2199]

listen in at the beginning he said that nothing will be saved on app exit I think

[@valentindoring5105]

I cant import tvTodoTitle as the id of the xml object (47:50). It only gives me the option to create a new variable

[@valentindoring5105]

the pinned comment solved it... in the build.gradle file adding "id 'kotlin-android-extensions'" to the plugins and sync

[@xphis0528]

@@valentindoring5105 what pinned comment? there is none now. mediocre tutorial

[@ZeroTubeTV]

@@valentindoring5105 thank you!

[@TomasMisura]

After one hour of watching this video I have realized AS is already installed on my laptop so I can test it immediately instead of pure watching this :)

[@marcinbiaecki9731]

Thank you! Very helpful video! 😃

[@apmelqui1]

Quick question: On 47:40 how can I import tvTodoTitle and dbDone? Mine is to importing it. Thanks

[@DallasCampbellPersonal]

Same issue.

[@EnglishRain]

Great lesson, thank you so much!

[@kishoreN2572]

kzbin.info

[@BehruzbekOtayev]

will be following your courses, Philipp. Thank you very much

[@mosabtaibaoui8478]

in 48:00 that wasnt a choice import i clicked alt+enter but import wasnt existe

[@bashisthajoshi11]

Same bro. Have you found the solution?

[@БожидарСамоковски]

same here

[@Sam-bx5nu]

Same can't find anything though

[@JourneySuccessvids]

Doesnt let me import the btnDeleteDone todos at 1:02:31

[@hanzlaahabib]

Great & Thank you for putting great content together

[@samcodes2912]

yes really great content

[@hanzlaahabib]

@@samcodes2912 thanks

[@ath.bar.7671]

That's the longest video I have ever watched without skipping

[@shock1136]

Very nice and concise tutorial

[@soffi2719]

The TodoAdapter class is beyond me...

[@kacperukomski2915]

47:51 I cannot impotr. Any advice?

[@kermitthedog8442]

try clicking the red lightbulb, then click 'import'

[@harjeetsingh3120]

Love this! Thanks! 🙏

[@christophermoore3589]

My version of Android Studio produces a different default app with no LAYOUT folder/files and uses COMPOSABLE functions. So I'm totally baffled at the moment...

[@emwanri]

Instead of using "Empty Activity", newer Studio wants you to use "Empty-View_activity" then you will get "Layout" directory. I struggled for 2 days, but after long google searches I found that solution

If I may… Thanks for the course, you really put a lot of work in this. But (sorry for that part) if I learned something in almost 40 years of coding it is that a beginner tutorial should always be done by a (almost) beginner! You clearly know what you are talking about but you lost almost everyone trying to explain too many different concepts while rushing some others. Android Studio is not a tool that can be mastered through a single course, especially if you don’t know Java, one of the hardest coding language still around (not JavaScript which is a breeze in comparison). An AS beginner course should probably be more focused on the interface, some basic code and a lot of visual stuff to set your interface up as well as a simple way to test your very basic app on a device, because that is the reward beginners are looking for. Anyway, as I said nice effort.

[@harunk.2635]

Hi Philipp, thank you very much. This tutorial simplified my entry into the Android (Kotlin) world. You did it very well 👏 It seems to be very similar to the development of UIs with Qt (Designer), I didn't know it and this will make my life pretty much easier. Do you have a tutorial with a more complex Android app, I would buy and watch it.

[@FootprintsofLongIsland]

Thanks for your time teaching us

[@heetaelee7873]

Thank you for good tutorial video! 👍👍

[@lardosian]

I once tried to use android studio and the amount of errors popping up scared me away for years, is it any better these days?!

[@ash143aish]

I don't know when you have used it last .....but I feel it is one of the best in terms of user experience ides out there ..

[@samcodes2912]

try it out again. much better

[@amans6504]

let the bad boy suck 100% of you network, ram, cpu usage then it'll work smoothly

[@izzy5532]

Nope for amd

[@bestafokwalam7285]

Good and Great one..you are keeping it real.

[@khurramshahzad-in3lj]

at 46:54 apply function is not loading in view class??

[@kawsarwp]

Always reading minds, how do you do it 😩♥️

[@digiton7]

Aww

[@Sniperkag]

My head exploded in the TodoAdapter >_< I'll better go back to basics

[@samcodes2912]

very clear explanation

[@drdDavi]

As a Senior Flutter Developer, I fully endore this video. Amazing, clean and concise content. You have given me motivation to deep dive into Android and Kotlin more.

[@lardosian]

How are you finding flutter, I was thinking of learning it for mobile development and really like Material ui, thanks!

[@drdDavi]

@@lardosian I really like flutter, super fast development. And easy to read code.

[@lardosian]

@@drdDavi Thanks Damion

[@archangel0137]

I'm a Web Developer and learning Flutter. Is Kotlin a good addition??

[@mbhalishandu2583]

@@lardosian check "FilledStacks" KZbin channel, as a Senior Flutter Developer, watching this just kept me thinking ".. yea I ain't coming back to this boys and girls 😅"

[@yabadabadont8219]

The binding method here is deprecated.

[@oliveryt7168]

Sehr schön! Habe zwar etwas Ahnung von Kotlin, aber so gut wie keine Ahnung von Android... und teilweise habe ich nur Bahnhof verstanden xD... Muss wohl noch recherchieren. This is not for absolute beginners like me... xD

[@HeiachihDruide]

I just saw your video and I am amazed. You really explain everything and you really guide the user through every step. Good job, mate and thank you for the content !

[@yukeeantox9457]

amazing video for learning kotlin

[@richenjoshi7054]

I understood nothing from programming part, what is going with all those class inheritance, class type, etc

[@asklepios--]

Same

[@sredna3714]

Great tutorial, thanks! I learned a lot

[@loloud]

I'm not familiar with kotlin but seems too confusing to have a nested class and even to have a parent class type of its nested class.

[@marcostavares6236]

at 41:00 when i press ok after Ctrl + I it doesn't import the implement members; what am I doing wrong??

[@shreyajha2066]

Ctrl+enter

[@PankajKumar-fq9zi]

48:19 showing errors in text and ischecked why?

[@arjunshinde7]

Thanks guru for creating a video on Kotlin.

[@maryannadelman4438]

In regards to my question about a possible future tutorial on how to link this with a database: Would you be able to direct me to a tutorial that would show how to link a database with the code you've written in this app so that list inputs would be retained when app is exited & reopened? It would be much appreciated. Thank you.

[@paulocabelloacha4195]

It's amazing for starting!

[@samcodes2912]

exactly

[@Cuti237]

Awesome Bro, you given very detailed explanation for each of the item, my sincere thanks for all your effort.