Bluetooth | Android Studio | Java

[@DiptaSahaCSE]

you are a good programmer because you using comments when you are coding.this is a very good habit.every programmer should use comments.

[@bestbest1107]

Good code doesn't need comments, because it's easy to understand

[@adfinemrising]

i didnt know bluetooth doesnt work on android emulator.. it really has to run on a real device to be tested. very nice tutorial sir :)

[@AtifSayings]

Happy to help

[@gadgetzup5243]

Thanks bro or the tutorial, I want to ask that android studio is saying that startactivityforresult() is depreciated, how can upgrade to modern way.

[@AtifSayings]

You're welcome. Here is the link of a video already made by me. kzbin.info/www/bejne/qoaml3yBbpVrn5o

[@dhavalpatel3794]

Could you please make the tutorial for how can I communicate over Wifi and Bluetooth with esp32? If i want to take realtime data from esp32 toandroid application in kotlin then is it possible?

[@AtifSayings]

No idea

[@semakzl4524]

Thank you for sharing this amazing video. But i have problem with this code sentence "startactivityforresult deprecated" what should i fix this issue?

[@AtifSayings]

You can easily change to recommend new way to do the same by watching this video by me kzbin.info/www/bejne/qoaml3yBbpVrn5o

[@sankalpnaik877]

@@AtifSayings iam still not getting it Plzz help

[@sankalpnaik877]

I have many problems of security exception....how to resolve plzz help

[@karimkhaled9711]

Understood very well ,but please i want to know how to connect to device after listing paired devices ?

[@hariharank4741]

hi this tutorial is very useful to me. This Project is working successfully THANK YOU

[@natobaratashvili8470]

Could you tell my how i replace startActivityForResult()? it does not work :(

[@fam225x]

L'hai spiegato in modo molto semplice. Well done!

[@AtifSayings]

😊

[@theoberessi6794]

Heyy thanks for the tutorial ! Can someone tell me what is the shortcut to write quickly ?

[@AtifSayings]

You're welcome Line Comment hold both: Ctrl + / Block Comment hold all three: Ctrl + Shift + /

[@TheBuzoTechie]

Great video, I plan to use this for one of my projects :)

[@matkobiss]

Thanks bro....just starting off my project :)

[@AtifSayings]

You're welcome

[@8animer889]

how to list out all nearby devices along with rssi??

[@AppsLelo-Official]

Awesome boss, It is the perfect what I was looking for. Thanks A Lot.

[@AtifSayings]

You're welcome :)

[@AppsLelo-Official]

I need a tutorial on BLE too, with full functionality.

[@AtifSayings]

@@AppsLelo-Official May be in future

[@nolinkay1361]

Thanks bro very helpful

[@moisegimiko7412]

Hello, Thank you for your video, but when I press the button "Get paired Device" the application stops abruptly .... what is the problem?

[@AtifSayings]

check logcat for crash reason

[@Hung0618]

Excuse me, the presence of Call requires permission which may be rejected by the user: code should explicitly check to see if permission is available (with `checkPermission`) or explicitly handle a potential ` SecurityException `. How to solve the error?

[@AtifSayings]

Mention time where this error is showing

[@devadarshbiju5981]

does this work with Bluetooth module HC-05, to get paired on it

[@nocompromise8264]

Sir, How to sync/automatically save data/database in SQLite/Kotlin?

[@AtifSayings]

If you know to use SQLite & Firebase separately then you just need to get data from firebase and call insert in firebase. Since firebase db supports realtime changes so it will save data as and when data changes

[@harisnoori6612]

Yeah, it's working. Let me know, how can I see he available devices to connect with ?

[@hejiahan7095]

Hi! what do i do now that 'getDefaultAdapter' is deprecated?

[@Mfbzai]

Is it possible to get rssi in your way?

[@ayoubmoul2893]

Thank you very much, it's helpful for me, please do you have a tutorial about sending and receiving data

[@AtifSayings]

You're welcome. Not have yet

[@luisalejandromonroy7850]

Muy bien, es le mejor tutorial en este tema que hay

[@paolodecaro3741]

Hello and thank you for answering me. Following your video you fail to see the java specs well, many features are deprecated. So dear Atif I ask you the kindness if you can, to send me the complete code, possibly aligned with the latest release of android studio. You have to forgive me I'm not very good at java, and I need an example program like yours. Thanks in advance. Best regards

[@AtifSayings]

I don't promise, but I'll try to check in latest android atudio and then let you know.

[@paolodecaro3741]

@@AtifSayings thank you

[@scottclark3153]

I cant help but laugh on the inside when I read that some of you are having issues after watching this "silent tutorial"( which I feel is an oxymoron), and then think that the person that made this video will respond back to your questions and concerns. I think if he wanted to communicate with you, he would have in this video.

[@ckcheckcar25]

i want to android emulators x64 support bluetooth. can you help me.

[@AtifSayings]

Android emulator doesn't have Bluetooth (i think so)

[@felix22112211]

exelentes videos me ayudaron gracias eres un genio

[@martinwhite4363]

thanks very much but need your help please on how to turn on Bluetooth with out the dialogue that asks me to allow permission to enable Bluetooth thanks

[@AtifSayings]

You're welcome. No idea about that yet

[@davidlewisnthiga2474]

Great,Atif,could we link up have some question please.David

[@AtifSayings]

Can you say in comment?

[@chrisdunne2296]

Very informative. Thanks

[@AtifSayings]

You're welcome

[@ewe_loon2978]

Note to All in MainActivity the "if mBlueAdaptor.isEnabled() " ... part should be in the "else" section of the proceeding "if mBlueAdaptor == null" section to stop trying to read "isEnabled" from a null

[@paolodecaro3741]

Good evening, I tried to upload your project to Android Studio, latest version, but many instructions are in error, you may kindly post the sources, or modify them with the latest version of Android Studio. Thanks in advance.

[@AtifSayings]

Can you comment the issues here

[@alexanderklepach7728]

@Override public abstract void onClick(View v) {switch (v.getId() /*to get clicked view id**/) { case R.id.onBtn: if (!mBlueAdapter.isEnabled()){ showToast(msg:"Turning Bluetooth ON"); // Intent to on Intent intent = new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE); startActivityForResult(intent, REQUEST_ENABLE_BT); } else{ showToast(msg:"Bluetooth ON"); } } break; case R.id.offBtn: if (mBlueAdapter.isEnabled()){ showToast(msg:"Turning Bluetooth OFF"); break; case R.id.scanBtn: break; default: break; } }

[@alexanderklepach7728]

I have an error here

[@nouzainahassan5623]

Can i use this app to get data from the arduino Bluetooth module ?

[@jcayournewstyle182]

The code doesn't work for me. I think that now the implementation to connect to bluetooth in android studio is different 😔

[@AtifSayings]

I don't think so. It should work. Try to test in a real device instead of an emulator.

[@dilumnethsara6645]

java.lang.RuntimeException: Unable to start activity ComponentInfo{com.example.connectbluetooth2/com.example.connectbluetooth2.MainActivity}: java.lang.NullPointerException: Attempt to invoke virtual method 'boolean android.bluetooth.BluetoothAdapter.isEnabled()' on a null object reference why showing this error?

[@AtifSayings]

There might be 2 reasons for this exception 1) You might have called this code if (bluetoothAdapter.isEnabled()) before intitializing the instance of BluetoothAdapter that is bluetoothAdapter Example: bluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); //after that call the if (bluetoothAdapter.isEnabled()) 2) The device doesn't have bluetooth hardware.

[@enzofigura]

Muy buen tutorial, es genial que tomes en cuenta cada una de las excepciones, estaría genial que se pudiera seleccionar y conectar uno de los dispositivos emparejados, pero la verdad no me puedo quejar, excelente video!

[@yousefmohammed3466]

Hello my brother Youssef from Gaza. I am telling you. I have a graduation project. I did the same video, which is Bluetooth and Android Studio. I did the same thing as you did, but I got a problem, and I don't know where it is. If you want to make it work, you have to make it work. If you help me, I will be very grateful to you. I have money if needed. Thank you. My situation is difficult. My brother is not allowed. ‏‪1:22‬‏

[@carlosdelgado6697]

eres el pro mano, ERES EL PRO!

[@manuelocano2055]

Great video bro. It really helped me with my homework :)

[@tonyarduinotechs1279]

where is the code ican not found it even after clicking on the link

[@trungnguyen1427]

what is the emulator you are using to test with Bluetootth? can u share please?

[@AtifSayings]

its not emulator, its real device

[@shouravpaul263]

awesome tutorial...u made it really simple

[@dhruvkumarcontractor7716]

Hello Atif, what changes do i do in bluetooth api to display only names start with '*'? Can you please guide me on that?

[@AtifSayings]

before adding in list you can use if statement to check if name contains '*'

[@alone-g9k-x6l]

thanks

[@markhannibal5434]

Thanky ou very nice tutorial

[@dineshwasoo1978]

Damn good tutorial. May i know how to activate the autodropdown coding to make easy referencing while typing the codes

[@AtifSayings]

Its basic feature of Android Studio Check if you somehow not diaabled jt or you didn't put Android studio on powesave mode

[@ares9238]

Buenísimo me sirvió de mucho la verdad te lo agradezco mucho... Ya que me ayudo a aclarar algunas dudas que tenia..

[@josephrivera3874]

Hello, can you help me with the part of (showTost, String msg and with the intent) it puts the words in red and marks error in the method

[@ndmaru8518]

JOSEPH RIVERA pls check if you put that part in the right parentheses

[@koonlintube650]

Thanks bro! 감사합니다!!!

[@AtifSayings]

You're welcome

[@wilsonamadio3194]

Great tutorial !!!! You really helped me a lot . . . Thanks !!!!

[@AtifSayings]

You're welcome

[@raff5184]

hi, great tutorial. I have two problems: 1. the color of the buttons is magenta and doesn't change to blue like yours; 2. the bluetooth icons don't change color, are grayed out and I can't see them on the Layout design, neither on the app

[@mritunjaysaha223]

can it connect 3 or more devices?

[@abdelhamidlabsir8574]

hello , thank you so much for this video, I have a question in the same subject, I wonder if someone has the solution /// I bought a pair of air pods known as i12 tws ,and when I used them I find that the left and the right channels are reversed, (the left one is on the right ear and vice versa indeed) I'm asking if there is any software solution to overcome this issue without disassembling and switching them physically, something like a programme or a script connecting them to my Mac, and get programing them to the correct way, left ch on left ear and right ch on the right ear /// thnx so much ..

[@smileandwave9590]

Hi, I copied your code word for word but had to changeout the OnActivityResult. I followed your other video on that. But now my bluetooth requests and discover need permission from the user. But the ''this" argument in: if (ActivityCompat.checkSelfPermission(this, Manifest.permission.BLUETOOTH_SCAN) != PackageManager.PERMISSION_GRANTED) { doesn't work due to this being inside of a listener. What do I put instead of this or do I have to move the permission request? Thanks

[@RustysAdventures]

I'm having the same problem now. Did you fix it?

[@shakespear7675]

I copied your code exactly and added images but theres still errors in MainActivity, any updates?

[@AtifSayings]

what errors are you facing?

[@AtifSayings]

images should be in drawable folder 11:54 if you did same and still facing this problem then show your code at my email [e-mail]

[@MADCUBEproductions]

@@AtifSayings Hi, I am having an issue when I try to run the app, the error message of the app crashing appears on the virtual machine, is this configured to a specific version of android, I am using a virtual device running Nougat

[@AtifSayings]

emulator has no bluetooth try to test on real device

[@MADCUBEproductions]

@@AtifSayings ah will do, thank you for the quick reply, great video btw!

[@MrRika45]

Where can i download the android studio bluetooth API ?

[@siddharthburse]

I use this coding for Bluetooth connectivity.. it's very useful thanks a lot...but I have occurred one run time error... The application is not opening.. it's get forcefully close.. so what is the problem I didn't get it... So please can you or anybody help me please....

[@dev0ok305]

Is it indeed necessary all these lines of codes to press on buttons...?

[@albertsoffici4280]

Do you have an updated project for Android Studio, it looks like several things have changed since you published this by the excellent tutorial, congratulations - Al

[@AtifSayings]

Not sure, but i think this should work in latest android version too.

[@merazmario]

Very nice how to activate detected Bluetooth Low Energy?

[@87-haj]

thank....plz help me i want code for sharing wifi profile with another android phone this aproperty found in galaxy note 3 ,4,5....etc

[@AtifSayings]

i'll check if API for this is available or not

[@isaacclark2499]

@@AtifSayings Where is the WIFI Version, You said you'll check!!!!!

[@cyz6623]

Thanks bro! It is so helpful for me.

[@AtifSayings]

You're welcome

[@manpham8186]

I use Android studio 3.5 and in import it got Android X so does it affect alot in result ? Plz help

[@manpham8186]

I copied your code and past but when i ran in genymotion they cant run

[@AtifSayings]

What happens when you try to run

[@manpham8186]

@@AtifSayings i solved it

[@bonusintro2427]

Could you tell me " How to read Uuid from all device?" i mean in set devices

[@suprativdas1983]

I wanted to ask the same question

[@AtifSayings]

device.getUuids();

[@SXPRO_SCHOOLSYSTEM]

Thank you so much .. very good lesson .. I hope if you explain also how to send and receive data ( text of files )

[@AtifSayings]

You're welcome ill try

[@freire_gtr]

@@AtifSayings Yes please!!, your lessons are wonderfull man! thank u for ur time to share ur knowledge

[@AtifSayings]

@@freire_gtr thanks you :)

[@adityamattaparthi7615]

hey did you get how to send data ,if found pleas help me i am making a final year project in which I have to implement this functionality

[@stinen012]

THANKS !

[@saadmaksood]

not working

[@AtifSayings]

have you tried in real device? it will not work in emulator

[@paolodecaro3741]

Buonasera , ho provato a caricare il tuo progetto su Android Studio, ultima versione, ma molte istruzioni sono in errore, potresti gentilmente postare i sorgenti , oppure modificarli con ultima versione di Android Studio. Grazie in anticipo.

[@AtifSayings]

Kindly say in English

[@bikashbisoyi88]

Hay bro.. I have some error.. In this code Here.. msg is showing in red it's mean error... How.....and showtoast is also showing error... What can i do... Plzzzzzz reply..

[@dylanwhite2467]

It took me forever to realize you don't type msg it just appears automatically when you add the quotation marks. Hopefully this helps.

[@முகிழினியால்]

Atif peravaiz...when i run this ... the app is crashing wht can i do

[@AtifSayings]

check logcat for crash reason

[@முகிழினியால்]

@@AtifSayings I am having error " E/BluetoothAdapter: Bluetooth binder is null"

[@முகிழினியால்]

how to solve this...I am running this on emulator

[@AtifSayings]

@@முகிழினியால் emulator doesn't have bluetooth, so test on real device

[@முகிழினியால்]

@@AtifSayings ok..thank u...it is working on real device

[@sfcguy8300]

sir I am doing android project My project title bluetooth based chatting system..so which android version is best for bluetooth.. plzz tell sir

[@riddy857]

Had you completed the project? I am working with the same project for academic purpose. Can you help with the source code please

[@eejaytaa9313]

My app kept on closing

[@klmho1232]

Wow ,, 대단합니다

[@antoniosnissem2089]

Thank u very mush

[@AtifSayings]

You are welcome

[@itsmd.25]

Nice Video👍 #ItsMD

[@souravnaskar8680]

19:06 just to remember

[@OLiconaGR]

Como puedo cambiar la velocidad de transmisión y recepción para la aplicación de android. Usa por defecto 9600 baudios y necesito incrementar esa velocidad.

[@AtifSayings]

please reply in English

[@OLiconaGR]

@@AtifSayings How can I change the transmission and reception speed for the Android application? Use default 9600 baud and I need to increase that speed.

[@hirenm3123]

thanks Atif Pervaiz , BTW i want to extract characters from string (written in Textbox) ,for example "HELLO" then i need 'H' 'E' 'L' 'L' 'O' , in single variable- is it possible ??if Yes how ?

[@AtifSayings]

You're welcome but what are you talking about? This is Bluetooth tutorial

[@hirenm3123]

@@AtifSayings i'm talking about only Textbox text, can i get whole word as character by character??

[@inamfareedchishti4387]

can i control arduino Bluetooth with this app ? control like on/off Bluetooth Module on Arduino. ?

[@saurabhjejurkar5065]

Same question

[@yousefmohammed3466]

Hello my brother Youssef from Gaza. I am telling you. I have a graduation project. I did the same video, which is Bluetooth and Android Studio. I did the same thing as you did, but I got a problem, and I don't know where it is. If you want to make it work, you have to make it work. If you help me, I will be very grateful to you. I have money if needed. Thank you. My situation is difficult. My brother is not allowed.

[@AtifSayings]

Send details on my email (available in about of my channel)

[@fantera9115]

its works for LE ?

[@AtifSayings]

what do you mean by LE?

[@AtifSayings]

Ok. I didn't tried that

[@nickslobodsky4444]

When i run the app on my device, the following toast message pops up : Bluetooth isn't supported on your device. My device has an api of 19. What could be the problem ?

[@xXWhatzUpH8erzXx]

Android Studio doesn't support bluetooth on emulated devices, you have to test on an actual device. Could that be the problem that you are trying to use an emulated device on your computer?

[@nickslobodsky4444]

@@xXWhatzUpH8erzXx I plugged my device to the computer, and it said that Bluetooth isn't supported on this device.

[@munishkumar7165]

plase share sorce code

[@EdwinaWify]

Thank you for the good video. Can you upload the version of 'Kotlin'?

[@AtifSayings]

Yes sure

[@EdwinaWify]

@@AtifSayings thank you~~ :D

[@yuvrajagarkar8942]

can I buy your channel ?

[@AtifSayings]

Not for sale

[@ajaysurve_21]

no source code!!

[@djemaryouma721]

merciii

[@yousefmohammed3466]

Hello my brother Youssef from Gaza. I am telling you. I have a graduation project. I did the same video, which is Bluetooth and Android Studio. I did the same thing as you did, but I got a problem, and I don't know where it is. If you want to make it work, you have to make it work. If you help me, I will be very grateful to you. I have money if needed. Thank you. My situation is difficult. My brother is not allowed. ‏‪1:33‬‏ ‏‪1:34‬‏

[@AtifSayings]

If it's not too late, you may send complete details... [e-mail]

[@hirenm3123]

android code to connect Bluetooth with paired device

[@AtifSayings]

ill try to make video on it

[@isaacclark2499]

Where is the WIFI Version, You said you'll check!!!!!

[@raihanulislam71]

sound??? 😢😢😡😢

[@mihaiimihaii5530]

we lost time in vain

[@zayedalmaamri3166]

Itsss tooo haaaaaarrrrreeeeedd 😡😡🥵🥵🥵