react-native-esc-pos-printer: Cannot find any printer on Kiosk device!!

@tr3v3r after executing the following code , try { const printers = await EscPosPrinter.discover(); console.log(“printers”, printers); } catch (error) { console.log(“Error:”, error); }

getting the following console errors

requestAndroidPermissions false Error: No permissions granted

I am using Expo React Native in Dev Client. and added these “permissions”: [ “android.permission.BLUETOOTH”, “android.permission.BLUETOOTH_ADMIN”, “android.permission.BLUETOOTH_CONNECT”, “android.permission.BLUETOOTH_SCAN”, “android.permission.INTERNET”, “android.permission.WRITE_EXTERNAL_STORAGE”, “android.permission.READ_EXTERNAL_STORAGE”, “android.permission.ACCESS_COARSE_LOCATION” ],

in app.json file.

Even if I request BLUETOOTH_CONNECT and BLUETOOTH_SCAN permissions using PermissionsAndroid from react native it is giving this response {“android.permission.BLUETOOTH_CONNECT”: “never_ask_again”, “android.permission.BLUETOOTH_SCAN”: “never_ask_again”}.

can you please check what is the issue ?

@tr3v3r Currently I have it patched for now, but if that will be possible will great, so I can also change it for devices that won’t have Google services on them, by parameter 🙏

@tr3v3r Thank you so much!! 🙏 That was the issue, the google services! I assume @nvdnvd00 had the same issue 😃

Okay thank you I will try those and get back to you 🙏

Nah, still an empty array Code:

 useEffect(() => {
    const test = async () => {
      const printers = await EscPosPrinter.discover();
      console.log(printers);
    };

    test();
  }, []);

Logs: LOG requestAndroidPermissions true LOG enableLocationSetting true LOG []

@nvdnvd00 Ok! Since your application works on tablets I suppose this is not a problem with the library for USB connections. What I can do: I’ll add support for x86_64 arch for Android (which is missed right now) in an upcoming release ( I’ll try to do it today ).

From your side: Please try to find what exactly happens when you try to discover on the Android side. Any errors/logs why you can not see the device. Also, double-check if all permissions are added according to the docs.

Also if its possible try to connect the printer with another connection type (Bluetooth, LAN )

@nvdnvd00 sorry but I need also processor architecture.

@tr3v3r Correct!

@tr3v3r I repeat “space” between left side and right side. It still works for long line with wrap. I’m waiting for kiosk information and will send it to you soon. Everything I know is meridian kiosk and it run on android 11

const printLeftRight = (
	printing: Printing,
	left: string,
	right: string,
	maxChar: number,
	size: TScalingFactors = 1,
) => {
	const totaLeft: number = left.length * size;
	const totaRight: number = right.length * size;
	const totalChar: number = totaLeft + totaRight;
	let centerSpaceLength: number = 0;
	let numberOfLines = 1;

	while (numberOfLines * maxChar < totalChar) {
		numberOfLines++;
	}

	centerSpaceLength = numberOfLines * maxChar - totalChar;

	printing
		.size(size)
		.text(left)
		.size(1)
		.text(' '.repeat(centerSpaceLength))
		.size(size)
		.text(right)
		.newline();
};

@nvdnvd00 Btw how did you achieve such a layout? I mean text on the left and right?

asking because working right now on the way to do it