Anyway to detect specific device disconnect?

[kainbryanjones]

We're using ya-webadb at the company I'm working for to develop a tool for testing our app. Currently all runs well, but I can't get the UI to update when the device disconnects.

WebUSB supports the ondisconnect function which passes the serialNumber through the event object. I was planning on using this to detect if the device using Adb had disconnected but the Adb object has no 'serialNumber' parameter. Is there anything I'm missing here where I can just add a listener?

Using React just want to update the state.

Thanks.

[yume-chan]

In a previous version Adb class uses AdbBackend instances directly to communicate with devices, so it was possible to read the serial number via adb.backend.serial. But now Adb and AdbBackend are decoupled, Adb only requires a ReadableWriablePair and AdbBackend has a connect method to provide that, it's not possible to read the serial number from Adb instance.

You need to keep the backend instance or at least the serial number somewhere else in your code, like the demo project does:

ya-webadb/apps/demo/src/state/global.ts

Lines 16 to 18 in 26fe783

	export class GlobalState {
	backend: AdbBackend | undefined = undefined;
	device: Adb | undefined = undefined;

ya-webadb/apps/demo/src/state/global.ts

Lines 32 to 35 in 26fe783

	setDevice(backend: AdbBackend | undefined, device: Adb | undefined) {
	this.backend = backend;
	this.device = device;
	}

Having a serial on Adb instances does make some sense. I will add it in next version.

[kainbryanjones]

Awesome! Thanks for the speedy reply :) Keep up the good work, this library is great!