Previously, USBPrinterAdapter().getInstance() worked same as constructor instantiating.
Changed getInstance to static method and disposed the static instance on onDetachedFromEngine
2. mUsbDeviceReceiver receiver always receives null for usbDevice
Checked in Android 12 & 13, the intent extra for UsbManager.EXTRA_DEVICE is always null.
So, add the vendorId and productId to pendingIntent while requesting permissions.
If UsbManager.EXTRA_DEVICE is null, then try to init usb device with vendorId and productId.
3. Moved pendingIntent from class scope to local scope
Since pending intent is only required when requesting permission, moved variable to local scope
Changes
1. Changed
USBPrinterAdapterto singleton class.Previously,
USBPrinterAdapter().getInstance()worked same as constructor instantiating. ChangedgetInstanceto static method and disposed the static instance ononDetachedFromEngine2.
mUsbDeviceReceiverreceiver always receives null forusbDeviceChecked in Android 12 & 13, the intent extra for
UsbManager.EXTRA_DEVICEis always null.So, add the
vendorIdandproductIdto pendingIntent while requesting permissions. IfUsbManager.EXTRA_DEVICEis null, then try to init usb device withvendorIdandproductId.3. Moved
pendingIntentfrom class scope to local scopeSince pending intent is only required when requesting permission, moved variable to local scope