Xamarin Forms Bluetooth Receipt Printing

[@memesnotmine892]

can i print image on bluetooth printer? like qr code.

[@carljohnlopez5425]

how do you format the receipt like there's header/body/footer just like a normal receipt? thanks

[@byrpa]

Should this work for MAUI? What changes need to be made?

[@dotnetdevni]

Which printer did u use would this work on ios as well?

[@Andres-wo5oi]

magnifico tutorial un saludo desde Chile!.

[@poorneshv7532]

You are doing wonderful job by creating these. Thank you very much

[@LeeRaybone]

Where do you get the string from for the UUID.from string or is this just a generic string

[@MrNawshad]

just an UUID Copied from the net.

[@AbhishekSingh-vp2qi]

will it work on IOS, i want it to be in xamarin IOS also

[@EdRawrDev5813]

Awsome job mate 💀💜💎

[@parkwiz2888]

Very nice explained and it is working awesome ! Please help us to print QR code as well.

[@anassnassim]

thank you so much for this great tutorial I have a question if you have some time : can you add a printing image functionality?

[@MrNawshad]

For printing image, I would recommend you to use the printer's own SDK. I would try to show how it's done at some point. Thanks.

[@anassnassim]

@@MrNawshad thanks to you and i will waiting

[@humbertoarciniega1273]

@@MrNawshad Please, I’d really like to know that too, mi printer doesn’t have a sdk for xamarin forms, just for android (Java), I’m starting in xamarin forms and I dont understand how to implement that, I’d really appreciate that

[@NikyusOfficial]

Did you found a way to do it?

[@NikyusOfficial]

@@humbertoarciniega1273 Did you found a way to do it?

[@FernandoBravoNogues]

Works like a charm! Thank you!

[@kevinsolanoulate2983]

Version xamarin forms?

[@komalrakh2879]

Can we able to change size of page

[@israelceledonio2352]

thanks for this great tutorial, is it possible to print the images from xamarin without sdk?

[@MrNawshad]

I m sure it is possible, but I have not been able to achieve that yet. I usually use the printer sdk to do all the image printing. Thanks

[@nikitapatil1496]

does this work on android 10 or higher?

[@MrNawshad]

Did not test it on android 10 device, but the code should work anyway.

[@nikitapatil1496]

@@MrNawshad It is not working for me on android 10. getting socket closed exception

[@MrNawshad]

Have a look at this issue stackoverflow.com/questions/61060967/android-10-bluetooth-connection

[@parkwiz2888]

Hello Friend, If you can help me to print multiple line. as now it is printing continue. Pls help.

[@Anandkumar-eb6mu]

for me the binding command is not triggering and also options are not loaded because of binding whats the reason?

[@MrNawshad]

Did you bind your viewmodel from the view????

[@Anandkumar-eb6mu]

@@MrNawshad ok i got my mistake, i binded wrong model.... thanks man very much

[@clarkbrown4365]

I created this project and tested on my device paired to bluetooth printer. after select printer, click print, it prints the first time, if I click print again, it does not print , I can exit the app and start again, sometimes it prints, someitmes does not.

[@MrNawshad]

It's because the printer job overload. This tutorial is for education purpose. In real world application, you have to to wait until the printer job is finished and then send the next printer command. So basically you disable the print button at the beginning and enable is later after the job is finished. Alternatively, have a look at how to handle tasks in background threads. Thanks.

[@biswajitpal9082]

It's not print the Arabic letters.. I have tried with all Encoding.UTF8, Encoding.Unicode and Encoding.ASCII. please help me

[@geraldopereira9536]

Ótimo vídeo meu amigo, fiz tudo igualzinho e funciona bem, porém se coloco um texto grande ele não imprime mais que 3 linhas poderia me ajudar?

[@dineshkumaraguru3721]

this bluethoothadaptet, not working in Xamarin froms ios,

[@gerardolopezibanez7980]

how to print line spacing

[@ibrtech7183]

Hello can i get the source code or you github's account?

[@dineshkumaraguru3721]

i need a ios also, can you , please share the source

[@jaimemoran7245]

excelente video, como puedo imprimir imagen por bluetooth??, saludos

[@koliroian2650]

can I do this for Arabic character

[@checox1909]

Repo??

[@AdlerwebMX]

Hi MrNawshad, I have a two problems in the file IBlueToothServices.cs Error CS0501 'IBluetoothService.GetDeviceList ()' must declare a body because it was not marked as abstract, external or partial C:\Development\xmrPrinter\xmrPrinter\xmrPrinter\xmrPrinter\IBluetoothService.cs 9 Error CS0501 'IBluetoothService.Print (string, string)' must declare a body because it was not marked as abstract, external or partial C:\Development\xmrPrinter\xmrPrinter\xmrPrinter\xmrPrinter\IBluetoothService.cs 10 I not found the solution to this problem, can you help me please?

[@MrNawshad]

I guess you haven’t linked the dependency. Please watch the video on android implementation. Thanks

[@sahdevsiddhu5692]

Can you provide this code

[@diegoliterat2240]

Hi, thanks for the video. I have a question, I need to print text and qr code. Do you know how can I do this? Thanks

[@MrNawshad]

public static readonly byte[] QR_CODE = new byte[] { 0x1B, 0x5A, 0x00, 0x02, 0x06, 0x17, 0x00 }; pass this byte array before printing your text.

[@diegoliterat2240]

@@MrNawshad Thanks. I solved with the Esc/POS _Net library. I need to implement USB and/or Bluetooth printer on UWP but without the dialogue. (Pos printer) do you know any way to get the printer and call to write method?

[@pn_slender1408]

does this work with any bluetooth printer?

[@MrNawshad]

It should work with any generic Bluetooth printer.

[@varshapatil8229]

pls do tutorial on print a QR code.

[@NikyusOfficial]

Did you found a way to do it?

[@varshapatil8229]

@@NikyusOfficial yes.i got it

[@varshapatil8229]

@@NikyusOfficial pls give ur email id

[@NikyusOfficial]

@@varshapatil8229 I cant send emails here, KZbin doesn't let me, is there any other way, like discord? Instagram? Smth else?

[@NikyusOfficial]

@@varshapatil8229 Please

[@sahdevsiddhu5692]

its not working

[@MrNawshad]

whats the error message that you get???

[@orangegamerdot]

@@MrNawshad When I select to device on picker , error message ; Java.Lang.NullPointerException: 'Attempt to invoke virtual method 'java.lang.String java.lang.Object.toString()' on a null object reference'

[@MrNawshad]

You have to try this app on a real device. If you run the code on emulator it’s going to give you null pointer exception.

[@orangegamerdot]

@@MrNawshad in fact I try on a real device. My device is goojprt MTP-3

[@bliitzeg]

How can I print a QR code?

[@MrNawshad]

Will do a tutorial soon.

[@bliitzeg]

@@MrNawshad Cool, thanks.

[@NikyusOfficial]

@@bliitzeg Did you find a fix for this?

[@bliitzeg]

@@NikyusOfficial No 😢

[@nickerpasco4247]

brother, could you teach me how to print a QR code? this is my code : string qrCodeData = Base64CodeQR(); byte[] qrCodeBytes = Convert.FromBase64String(qrCodeData); try { BluetoothSocket bluetoothSocket = device?. CreateRfcommSocketToServiceRecord( UUID.FromString("00001101-0000-1000-8000-00805f9b34fb")); bluetoothSocket?.Connect(); bluetoothSocket?.OutputStream.Write(qrCodeBytes , 0, qrCodeBytes .Length); await Task.Delay(1000); bluetoothSocket.Close() ; } catch(Exception exp) { //Debug.WriteLine(exp.Message); throw exp; } the problem is that it prints as it is base 64 but you have to convert it to image

[@sahdevsiddhu5692]

Hello can i get the source code or you github's account?

[@MrNawshad]

dotnetmaui.net/xamarin-forms-bluetooth-receipt-printing-fmqzs

[@sahdevsiddhu5692]

@@MrNawshad thanks

[@jayp.4100]

@@MrNawshad I am excited to build and run this code. Can you please point out to vs2022 project code that can be loaded and run? it would certainly be appreciated.

[@JoseRomero-di9dc]

@@MrNawshad no funciona :(