Recycler View with complete explanation | Android

In this video you will learn how to setup a basic #RecyclerView with detailed explanation of each class and method used inside building a recycler view.
You will also learn the following:
1. attach onclicklisteners
2. two ways to add layout manager
3. row removal Animation
4. adding a divider item decoration
5. adding in a #Ripple effect
6. + A lot more
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[@tonnie7079]

I just sat back n watched this video and by the end I was a master of RecyclerView, to hell with ListViews. Yours Truly you are awesaam. I wish there was a button to like twice.

[@KapilTapsi]

Best tutorial ever. I had wasted whole day searching for guide. This was the best for me solving all of my problems

[@mafiacodes]

Subscribe like share

[@ccarnagee7867]

That is one of the best if not the best RecyclerView tutorial... Subscribed...

[@ent-hub2830]

Excellent video Sir..., I was watching recyclerVeiw tutorials from 10 am, but none of the tutorials work for me, Thank God I finally found this video (at 2 am) and it clears my concept about recyclerview, and finally I'm able to run a recyclerview code successfully. Now I can sleep peacefully...... Again Sir Thanks a lot

[@mafiacodes]

Subscribe like share

[@ent-hub2830]

@@mafiacodesalready Done Sir

[@ivanovsergiu8575]

The best tutorial on recycler view and adapters, I have been watching tons of tutorials, but this one is the best. It explains in detail every step and also why each step is needed. Good job! Please make some tutorials on networking and android database. thank you

[@mafiacodes]

Thank you 😊, you can watch my video on retrofit for networking: RETROFIT Tutorial (v 2.5.0) | HTTP Client | Android Studio 3.2.1 kzbin.info/www/bejne/Z3e5oHWDbtllf80

[@sedinang75]

Great tutorial for a beginner as it shows each step in a clear and straightforward manner. Thanks a bunch

[@aneeshahamed2490]

Before I watching your video I seen some other videos. Your video only clear my all doubts

[@MdARahim]

Hats off boss! I learned about RecyclerView the hard way. I still have had some confusion. Your video just has made everything clear! WoW!

[@mafiacodes]

Subscribe like share

[@MdARahim]

@@mafiacodes I already Did. When someone will look for videos on android apps I will definitely point them to your channel.

[@ahmednafiunoman5040]

best brother you are the Best..i already watched more then 6 videos but no one teches like you about this topic

[@gibraanjafar1669]

Thanks a ton for this wonderful video explanation. This is perhaps the best explanation for recyclerView I have ever seen. You are a savior.

[@Tangarama]

Well done tutorial. I have watched 10 others and visit 20 Webpages... Now I got it! Thanks.

[@mafiacodes]

Glad you like it, subscribe like share 😊

[@altenevelyn9547]

i love the way you explain difference between listViev and recyclerView. Thanks a lot :)

[@mafiacodes]

Happy to hear that!

[@bite027_ketansharma6]

This is by far, the best tutorial on recyclerView I have seen, just because you ran the app with each step you did, which helped me understand what (almost) each line of code is doing. Thanks! Thor Ragnarok bahut aachi movie hai btw XD

[@mafiacodes]

Great to hear! Subscribe Like Share

[@sayyedaamer9243]

Wow.. literally i was waiting for this and I am going to comment to make video on this topic 😁. Thanks brother.

[@rohitchoudhary6843]

You are awesome bro...Your videos helped me a lot. Thanks for making them man.

[@nitingoswami1959]

sir u r true android studio explainer.it was very nice keep it up

[@mafiacodes]

Thanks 😊 Subscribe like share

[@nitingoswami1959]

I already did it😀

[@BABATECHNOPEDIA]

You are the best android tutor!

[@Rakesh_Raptan]

Awesome explanation . Even someone is experienced he can learn new things always . Great tutorial boss . 👍

[@niladrimallik3172]

I loved your video. You explained everything in such an easy manner. Thank you.

[@mafiacodes]

Glad you like it

[@hugovandenbulcke4323]

Thank you a lot it was really difficult for me to find good explanations online.

[@handsomeman5098]

thank you.... your explanation makes me understand easily.

[@sankar6934]

Bro you were simply awesome🙌🙌

[@mohammadnoorhossain126]

Excellent Tutorial, Thanks a lot Boss!

[@androideparanoico_]

Just amazing, thank you! You explained it so clearly and perfect!

[@mafiacodes]

Glad that you like it

[@jumpToTech007]

best of the best Explanation about Recycle-view thanx bro

[@mafiacodes]

Thanks and welcome

[@josephmota358]

Thanks Sir, It finally worked for me, with a few code varitations, because I'm using Android X

[@mohanavelk2724]

Good one Bro !! Keep going

[@AbhishekKumar-br5eh]

Beginner Friendly Notes. Skip to _Summary to setup Up basic Recycler View_ for just the basic flow *Steps for setting up basic recycler view* 1. Create recycler view ViewGroup in XML and refer to it using findViewById in corresponding Activity. (inside oncreate) 2. Create Recycler Adapter class 3. Create ViewHolder class inside Adapter class. It extends from recyclerview.viewHolder . implement the constructor . 4. Adapter class extends RecyclerView.Adapter() Pass the type as ViewHolder created above. eg. RecyclerAdapter.ViewHolder 5. Implement methods for RecyclerAdapter 1. getItemCount() -> Returns collection size 2. onCreateViewHolder() -> This method creates rows and returns viewHolder. Note that it is only called a few more times than the number of items shown on screen at once. 1. Create RowXml if not done yet. 2. Create Instance of Layout Inflater .from(parent.context) 3. Create view by layoutInflater.inflate(R.layout.row_item, parent, false) 4. Create viewHolder by passing view created above as argument 5. return viewholder 6. viewType argument of this method is used if we want to return multiple view holders 3. onBindViewHolder() - implement after writing viewholder class logic 6. Write logic in viewHolder class -> ViewHolder class has access to all individual views (like image view, textview etc) inside each rowitem. 1. The viewholder class constructor takes itemView parameter (of type view). This itemView is now our row xml. Hence we can use itemView.findViewById to refer to all elements in each row. 7. Now inside the Activity where we had declared RecyclerView, we should declare Recycler Adpater 8. Attach Layout Manager to RecyclerView to Specify which type of recycler view we are using. 1. eg. recyclerView.setLayoutManager(LinearLayoutManager(this)) 2. Alternatively we can open xml of recyclerView and use property app:layoutManager="androidx.recyclerview.widget.LinearLayoutManager" 9. Attach RecyclerAdpater to recycler View. eg. recyclerview.setAdapter(recyclerAdapter) 10. Now lets implement onBindViewHolder() -> This takes holder and position as arguments and used to set data in each row. Hence it is called for each item in collection as opposed to onCreateViewHolder() 1. holder is obj of type ViewHolder. Hence the image view/textview elements we had referred to inside ViewHolder Constructor are available here. 2. We can use position to set values. eg. holder.rowTextView.setText(position.toString()) *Summary to setup Up basic Recycler View* 1. Recycler View XML -> Activity -> Attach Layout Manager to xml OR activity. -> Row xml 2. Create Recycler Adapter -> inner ViewHolder -> viewholder extends -> implement viewholder constructor -> extend recyclerAdapter and pass in viewholder as type -> implement recycleradpater methods 3. Return size in getItemCount() -> Create layoutInflater from parent.context, view by row xml; parent; false and viewholder from view. Return viewholder from onCreateViewHolder() 4. Refer to row elements in viewHolder constructor using itemview -> Use this holder to set values to elements in onBindViewHolder() 5. Create instance of recyclerAdapter in Activity. Attach RecylerAdapter to recycler view. *Passing Collection to RecyclerView* 1. Create Collection in Activity. Add data to it and pass to RecyclerAdapter while creating its instance. 2. Create a property for the collection and constructor to populate from this collection in Adapter class 3. Make changes to Adapter Methods 1. getItemCount() -> return collection.size 2. onBindViewHolder() -> now you can access collection items using position and use it to set current row. *Setting up Divider* 1. Create instance of DividerItemDecoration in Activity. It takes context and orientation (of recycler View) 2. Attach to recyclerView using recyclerView.setItemDecoration(dividerItemDecoration) *Adding OnClick Listener to Items* 1. Attach onClickListener to itemview inside viewHolder constructor. It takes context as parameter 2. Implement View.OnClickListener interface for ViewHolder 3. Override OnClick method in viewHolder. It has access to view argument. We can use it to get context. eg, view.getContext(). Also current position is provided by getAdapterPosition() 4. For longClickListener -> Attach onLongClickListener inside view holder constructor (similar to onClickListener) 1. Either override OnLongClickListener like onClick OR 2. We can pass onLongClickListener while attaching to itemview itself. Return true to mention that long click was handled 5. If making changes to collection, then trigger appropriate methods like notifyItemRemoved() etc. It takes position as argument *Ripple effect to Items* 1. Add following change to row xml parent view group -> add property : "?attr/selectableItemBackground" to android:background (or foreground)

[@badoorX9]

Thank you very much I was looking like this video for long time

[@mafiacodes]

Thanks 😊

[@aditya2927]

Tu bohat mast kaam karta hai maksood bhai.

[@learnandearn4847]

Well explained with why what and where.. Perfect

[@mafiacodes]

thanks...

[@Kobrakaineverdie2109]

Thank you for this super detail video ❤️

[@sorinaion1365]

Best tutorial for recyclerView ! Thank you !

[@mafiacodes]

Subscribe like share 😊

[@brianmagee2314]

Very well taught. Thank you.

[@mafiacodes]

Glad you enjoyed it! Subscribe like share

[@hissabis2068]

Thank you very much, you do a great job.

[@mjbx5923]

concept clear 🥰🥰

[@mdevikadarlami2110]

Finally Understood, Thank you so much ...

[@mafiacodes]

Glad that you like 👍 subscribe like share

[@hissabis2068]

Thank you, I like your tutos.

[@ajaygalagali5963]

Clearly explained, thank you😀

[@jishnuvedhikz4404]

This is an awesome tutorial. very well explained. loves it, bro.

[@rajatkhanna5256]

very detailed knowledge in this tutorial but. i have doubt at video time 18:30 how recycler view updates u passed empty list in constructor after setting adapter you added items in arraylist how this will handle is recyclerview keep checking on arraylist

[@monikapatel847]

Excellent explaination👍

[@mafiacodes]

Thank you 🙂

[@abhimangalm.s4073]

Great tutorials

[@slash0t5]

These guys videos are awesome. I wish there was somebody who did the same for UITableViewController.

[@mafiacodes]

Well I am going to start ios tutorials in a couple of weeks, so stay tuned. Subscribe like share

[@slash0t5]

@@mafiacodes subscribed. Also please query actual data since that's how real apps work. You don't have to do the setup but we would like to see how to query and load the data into the array before we use them in Table views and Recycler views.

[@shitalchaudhari2379]

wow man awesome explanation.thankyou

[@mafiacodes]

Thx shital, subscribe like share ☺️

[@speaktruth2power510]

Your are very good..Thanks for sharing your knowledge with us

[@mafiacodes]

Subscribe like share😊

[@georgebestjriii9645]

Awesome stuff man😊😊.

[@mafiacodes]

Subscribe like share

[@saitejd8108]

Amazing explanation

[@mafiacodes]

Subscribe like share

[@nishaanthsalian256]

fantastic. good one

[@PanamaRobinZ]

Man thank you so much

[@MathFunda]

Brother you are much better than codinginflow channel of Android You explain everything.

[@67Diadem]

I have a question at 16:26 that is if I want to display a value in a text view, for example:- "good day" only at row/position number 5 and rest of the row should be blank. How can we achieve this?

[@aaronbuckles5622]

Great tutorial! Thanks!

[@mafiacodes]

Subscribe like share ☺️

[@hirenambaliya611]

Good good efforts thanks

[@ivalazarevska]

Thank you so much!!!

[@mafiacodes]

Glad it helped!

[@TheAbhidugar]

SUBSCRIBED. Do you have any playlist for learning android development?

[@gopinathder8765]

Bhai thankyou very much

[@abhishekgoud100]

Awesome tutorial.. Thank you so much sir

[@mafiacodes]

Subscribe like share 😊

[@zarakkhan1484]

thank you sir... lots of love from Pakistan

[@mafiacodes]

Subscribe like share ☺️

[@deepakprajapati5064]

best explanation

[@mafiacodes]

Glad you think so!

[@ЕрасылТурлыгажы]

Thank you

[@Amyousing]

Nice one cool

[@dennisgonzales9521]

Nicely Done! When will you be using Kotlin :)

[@mafiacodes]

Well soon enough 😊

[@ФеликсДзержинский-л9б]

thank you !

[@mafiacodes]

Subscribe like share 😊

[@shoot9852]

very nice

[@mafiacodes]

Subscribe like share ☺️

[@DellohBorisOuahou]

Please , what event to add to retrieve when I slide my finger l over an item

[@evane1009]

great Video

[@ryank1956]

The two thumbs down must be from old girlfriends. Great vid! Hope you do some vids in Kotlin

[@mafiacodes]

😂

[@rahhi9792]

great video sir, please make a tutorial on getItemViewType() in recycleview for multiple items view.

[@mafiacodes]

Will try to make it

[@thuptentsundu9533]

Please when you make tutorial ... Will you explain logic behind . Otherwise video is good .. Thanks you

[@ajaytp4975]

Why onCreateViewHolder not calling in recycleview adapter class?

[@Games_canbe_funny]

Hi, I am new to Java and android development. I have one confusion , how is the recycler adapter called from main activity.

[@mafiacodes]

Watch the video it’s explained in detail

[@Games_canbe_funny]

@@mafiacodes Ya I have watched many times but my question is a bit technical, still couldnt figure out the calling of recycler adapter from main activity, can you just message me the line from code where actual call is placed from Main screen, will be really helpful for me to understand it fully. Thanks in advance and great work bro 👍

[@neekoooo6282]

Hi sir could i ask what do i do if i want to display names in two textviews? For example one displays Name and one displays Address. Thank you

[@mafiacodes]

Create a custom object and display it,

[@TheAbhidugar]

how to get these text colors in the editor? Which theme or plugin is required?

[@mafiacodes]

google developers theme

[@TheAbhidugar]

@@mafiacodes Could not find it. Can you please give the specifics?

[@mafiacodes]

GitHub louiscad google developers

[@sitaramgangode912]

Hi Sir I successfully used a recyclerview in an app. Thank you for it.But I have a problem. I have used a switch case in my public void onItemClick(int position) to open different activities & it works perfectly but when I filter the items with searchView, a lower item comes to top position. So when I filter the names every item opens the activity of first position instead the activity intended. I don't know how to solve it. Please guide for it..

[@kimberlynepa9252]

Hi. When I try to run it on my phone, the recyclerview won't open and somehow the app will crash and it will go back directly to my homepage. Do you possibly know what's wrong or how to troubleshoot this? I had followed everything you say but it's just not working with the app I'm trying to develop. I hope you can help. Thank you very much for the understanble tutorial :)

[@mafiacodes]

Can u share what’s the error ur getting in logs, or share the repo on GitHub so I can check.

[@kimberlynepa9252]

@@mafiacodes Hi! Thank you so much for replying. Can I email it to you instead? Can I have your email?

[@kimberlynepa9252]

And also where can we download the recyclerview dependency? I think that’s what I miss that’s why my Recyclerview is not showing. When I open my file it is just plain white and page will automatically close

[@syedibrahim1361]

which theme are you using ?

[@mafiacodes]

Google developers

[@nicoin.3178]

I have a question, is possible to do the same thing without androidx. Constraintlayout.widget.ConstraintLayout?

[@mafiacodes]

Yes you can use any layout

[@nicoin.3178]

@@mafiacodes Ah ok thank you! 😁

[@sorinaion1365]

Dear Sir, please kindly tell me: whenI click on a line from the RecyclerView, how do I access a specific item from that line ? For example, what code should I write in order to access the existing image ? I want to replace that image with an "edit" icon and, when i click on that icon, a DialogAlert should appear and the user be able to modifiy something. Thank you !

[@mafiacodes]

RecyclerView item Click using Interface | Advanced Way | Android kzbin.info/www/bejne/d5zMnaeKq5V2oKM This video you can watch to implement clicks. 😊

[@aritrikguha5742]

Hi, how can I travel to a new activity with the movie name, and show it there on a textView? Please guide

[@mafiacodes]

Passing Objects between Activities | Parcelables | Android Studio 3.2.1 kzbin.info/www/bejne/m3rQdquIrrNmrKc

[@aritrikguha5742]

@@mafiacodes Thanks for the video. I had one more doubt in mind- cant I use intent to travel to another activity, and get the cdata like you have done in the toast to show movie name?

[@aritrikguha5742]

Even if am passing parcelable, how am I supposed to send the immediate clicked data to next activity? I have tried it but its not working,remains in same activity. If you want I can share the code. Please help

[@mafiacodes]

U have to pass data using intent by making ur class parcelable

[@parthanarra6335]

I have a doubt sir, How could the divider line can skip first element and start from second element

[@mafiacodes]

This is how divider item decoration works internally, it knows abt the first element.

[@vbonnal]

Thanks for that !!! Heu... please also... add the automatic subtitles... you are speaking too rapidly :-[

[@mafiacodes]

Surely I will try my best - though the auto generated subtitles are available there for English

[@vbonnal]

@@mafiacodes It's great what you're doing. It helps us a lot. But for this video, as for some of your channel (not all) there is no automatic English subtitle. KZbin offers me to write them but not to have them automatically. This is chosen when you publish the video normally. In any case, there is no subtitle available. My English is bad and since you speak fast, I have a hard time understanding everything. But once again, thank you very much for your work and sharing your great experience with Android. You are precious to us !

[@mafiacodes]

Thanks a ton, I will try my best to upload the subtitles for this video

[@aakashgupta7489]

E/RecyclerView: No adapter attached; skipping layout can u help me to resolve this error

[@mafiacodes]

Attach a recycler adapter and set the layout manager. If still have problem share code on GitHub for me to check

[@fransismason6538]

how to change default image to other image which every list have different image?

[@mafiacodes]

Using image view setimage

[@fransismason6538]

@@mafiacodes example pls

[@fransismason6538]

movieslist.add(new movieImageClass(R.drawable.ic_sample, addText "Marvel")); like that, I saw it on other video

[@osmangraphy]

How to add a new row during run Time?

[@mafiacodes]

add item to array list and simply call notifyDataSetChanged().

[@jianruizmangampo]

whenever I change my theme to NoActionBar the recycler view disappears

[@mafiacodes]

Share code on GitHub

[@jianruizmangampo]

@@mafiacodes hoow

[@pankajprasar]

My app is crashing it stop automatically

[@mafiacodes]

What error?

[@wongt7718]

Do you have a Facebook or email to contact you with? Thank you

[@mafiacodes]

Yourstruly2607 at gmail

[@ScarlettArashi]

自動字幕がほしい

[@anikettikariha8066]

can i get a link to the code please

[@mafiacodes]

in description

[@StalinLenin001]

Please add subtitles. I am not a native speaker so please ..

[@mafiacodes]

Will try buddy, though u can use the auto generated captions in English

[@StalinLenin001]

@@mafiacodes The thing is ...I can't . It's unavailable . Please check it out .

[@harshadbb9996]

Dud you dint liked thor ragnarok?? Seriously??

[@provokator-provocateur7603]

I eat curry everyday

[@sefatergbashi]

Thank you!