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License: MIT License

Kotlin 31.75% Ruby 0.95% Swift 0.36% Objective-C 7.95% Dart 44.64% CMake 3.63% C++ 10.21% C 0.50%

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york89 shashikantdwivedi ganeshappentus kashiflab danielfok-sigma baydim jimrow101 vivekcoral adi-santoso fatahunissa-jahangir

thermal_printer's Issues

Fine Location permission

In my opinion, it should be documented in the README why exactly this plugin needs location permissions, and also why the FINE / precise location is required. It is not directly apparent why this permission is needed, which also makes App store submissions (especially Apple) very difficult.

New mutable implicit PendingIntent Error

I'm getting following error message. Please fix it in upcoming release

New mutable implicit PendingIntent: pkg=xxx.xxx.xxx=com.flutter_pos_printer.USB_PERMISSION, featureId=null. This will be blocked once the app targets U+ for security reasons.

Getting Exception in android

I'm getting the kotlin version exception

Want to Print using TSPL command

I've to print laundry garment tag from TSC TTP 244 PRO Barcode Printer . It support TSPL command. Can you please provide me example to print Text + QR code using TSPL command . I have found lib has a method to print image using TSPL command. It support only image input?
Please help me

Targeting Android 14 Give a Bluetooth Error. Work Fine in 13 an below.

I think may be related to this: Android 14 enforces the BLUETOOTH_CONNECT permission when calling the BluetoothAdapter getProfileConnectionState() method for apps targeting Android 14 (API level 34) or higher.

This method already required the BLUETOOTH_CONNECT permission, but it was not enforced. Make sure your app declares BLUETOOTH_CONNECT in your app's AndroidManifest.xml file as shown in the following snippet and check that a user has granted the permission before calling getProfileConnectionState.

And maybee we just need the runtime permission.

Assertion failure in -[CBPeripheral writeValue:forCharacteristic:type:], CBPeripheral.m:457

When call send function on iphone to print ticket
the app throw Exception
*** Assertion failure in -[CBPeripheral writeValue:forCharacteristic:type:], CBPeripheral.m:457

Left most column in Generator.row not left-aligned properly

Hi, thanks for developed this cool library!

I got an issue when I use generator.row and generator.textLeftRight to print a row, the leftmost column is not left-aligned properly.

Here is my code:

      bytes += _generator.hr(ch: '=');
      final receiptNumber = label.receiptNumber;
      final shippingTotalWeight = '${label.shippingTotalWeight} kg';
      final shippingCost = Formatter.currency(label.shippingCost as int);
      bytes += _generator.row([
        PosColumn(
          text: 'Pengiriman',
          width: 6,
        ),
        PosColumn(
          text: receiptNumber,
          width: 6,
          styles: const PosStyles(align: PosAlign.right),
        ),
      ]);
      bytes += _generator.textLeftRight('Berat', shippingTotalWeight);
      bytes += _generator.textLeftRight('Ongkir', shippingCost);
      bytes += _generator.hr();bytes += _generator.hr(ch: '=');

Here is my Generator configuration:

  @preResolve
  Future<Generator> get generator async => Generator(PaperSize.mm80, await CapabilityProfile.load());

and I used CP1252 global code table.

Is there any way to fix this? Thank you!

ios build

Error (Xcode): In /Users/mac/.pub-cache/hosted/pub.dev/thermal_printer-1.0.4/ios/libGSDK.a(BLEConnecter.o), building for iOS Simulator, but linking in object file built for iOS, file '/Users/mac/.pub-cache/hosted/pub.dev/thermal_printer-1.0.4/ios/libGSDK.a' for architecture arm64

How do you get currently connected devices?

Hi,

Can anyone tell me how can I check which devices are currently connected?
I can't seem to find anything about it.

A number is printed in all PosColumns in row()

When i use generator.row() to print a row, then a number is printed before all columns except the first one.
For example, for a row like below:

bytes += generator.row([
PosColumn(width: 8, text: 'Lemon lime x 5 units', styles: const PosStyles(align: PosAlign.left, codeTable: 'CP1252')),
PosColumn(width: 4, text: 'USD 2.00', styles: const PosStyles(align: PosAlign.right, codeTable: 'CP1252')),
]);

Expected output:
Lemon lime x 5 units USD 2.00

Current output:
Lemon lime x 5 units 2USD 2.00

Here, the number '2' is added to the print. if the alignment of the second column was PosAlign.left then '0' would have been added and if the alignment was PosAlign.center, then '1' would have been added.

Why is the number being added and how can I avoid it?

Bluetooth state not changing after disconnect

I am using the thermal_printer package in Flutter to connect to a Bluetooth printer. When I call the disconnect() method, the Bluetooth state does not change from "connected" to "disconnected/none".

I have tested this on Android.

Expected behaviour:

The Bluetooth state should change to "disconnected/none" after calling disconnect().

**Actual behaviour

WhatsApp.Video.2024-02-25.at.9.42.40.AM.mp4

:**

The Bluetooth state remains "connected" after calling disconnect().

generator row pos columns are not working on some printers

Hello Guys.

I have two printers.. everything is working fine for printer 1 and on the other printer the whole design is messed up.

I have attached the screenshot and code tables.

https://i.postimg.cc/HLS3TJZJ/unnamed.jpg

please help me to fix this issue and make the perfect format for any printer.

Thanks

lateinit property bluetoothService has not been initialized

Whenever I try to use a Bluetooth printer (weirdly USB as well), I get this error message. I can confirm that the package worked with version 1.0.5 on this same device before. Bluetooth is enabled in the device settings.

In this case, this is what the output looks like when the scan() method is called.

E/MethodChannel#com.codingdevs.thermal_printer(15934): Failed to handle method call
E/MethodChannel#com.codingdevs.thermal_printer(15934): kotlin.UninitializedPropertyAccessException: lateinit property bluetoothService has not been initialized
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at com.codingdevs.thermal_printer.ThermalPrinterPlugin.verifyIsBluetoothIsOn(ThermalPrinterPlugin.kt:307)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at com.codingdevs.thermal_printer.ThermalPrinterPlugin.onMethodCall(ThermalPrinterPlugin.kt:212)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:267)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$io-flutter-embedding-engine-dart-DartMessenger(DartMessenger.java:322)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at android.os.Handler.handleCallback(Handler.java:959)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at android.os.Handler.dispatchMessage(Handler.java:100)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at android.os.Looper.loopOnce(Looper.java:232)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at android.os.Looper.loop(Looper.java:317)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at android.app.ActivityThread.main(ActivityThread.java:8516)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at java.lang.reflect.Method.invoke(Native Method)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
E/MethodChannel#com.codingdevs.thermal_printer(15934): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:878)
E/flutter (15934): [ERROR:flutter/runtime/dart_vm_initializer.cc(41)] Unhandled Exception: PlatformException(error, lateinit property bluetoothService has not been initialized, null, kotlin.UninitializedPropertyAccessException: lateinit property bluetoothService has not been initialized
E/flutter (15934): 	at com.codingdevs.thermal_printer.ThermalPrinterPlugin.verifyIsBluetoothIsOn(ThermalPrinterPlugin.kt:307)
E/flutter (15934): 	at com.codingdevs.thermal_printer.ThermalPrinterPlugin.onMethodCall(ThermalPrinterPlugin.kt:212)
E/flutter (15934): 	at io.flutter.plugin.common.MethodChannel$IncomingMethodCallHandler.onMessage(MethodChannel.java:267)
E/flutter (15934): 	at io.flutter.embedding.engine.dart.DartMessenger.invokeHandler(DartMessenger.java:295)
E/flutter (15934): 	at io.flutter.embedding.engine.dart.DartMessenger.lambda$dispatchMessageToQueue$0$io-flutter-embedding-engine-dart-DartMessenger(DartMessenger.java:322)
E/flutter (15934): 	at io.flutter.embedding.engine.dart.DartMessenger$$ExternalSyntheticLambda0.run(Unknown Source:12)
E/flutter (15934): 	at android.os.Handler.handleCallback(Handler.java:959)
E/flutter (15934): 	at android.os.Handler.dispatchMessage(Handler.java:100)
E/flutter (15934): 	at android.os.Looper.loopOnce(Looper.java:232)
E/flutter (15934): 	at android.os.Looper.loop(Looper.java:317)
E/flutter (15934): 	at android.app.ActivityThread.main(ActivityThread.java:8516)
E/flutter (15934): 	at java.lang.reflect.Method.invoke(Native Method)
E/flutter (15934): 	at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:552)
E/flutter (15934): 	at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:878)
E/flutter (15934): )
E/flutter (15934): #0      StandardMethodCodec.decodeEnvelope (package:flutter/src/services/message_codecs.dart:651:7)
E/flutter (15934): #1      MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:322:18)
E/flutter (15934): <asynchronous suspension>
E/flutter (15934):