USBPrinterService

[nphuoc1625]

usbDevice.deviceName could be null and resulted in app crash immediately

[nphuoc1625]

E/AndroidRuntime(10736): FATAL EXCEPTION: main
E/AndroidRuntime(10736): java.lang.RuntimeException: Error receiving broadcast Intent { act=com.flutter_pos_printer.USB_PERMISSION flg=0x10 } in com.sersoluciones.flutter_pos_printer_platform.usb.USBPrinterService$mUsbDeviceReceiver$1@7dee852
E/AndroidRuntime(10736): at android.app.LoadedApk$ReceiverDispatcher$Args.lambda$getRunnable$0$android-app-LoadedApk$ReceiverDispatcher$Args(LoadedApk.java:1800)
E/AndroidRuntime(10736): at android.app.LoadedApk$ReceiverDispatcher$Args$$ExternalSyntheticLambda0.run(Unknown Source:2)
E/AndroidRuntime(10736): at android.os.Handler.handleCallback(Handler.java:942)
E/AndroidRuntime(10736): at android.os.Handler.dispatchMessage(Handler.java:99)
E/AndroidRuntime(10736): at android.os.Looper.loopOnce(Looper.java:201)
E/AndroidRuntime(10736): at android.os.Looper.loop(Looper.java:288)
E/AndroidRuntime(10736): at android.app.ActivityThread.main(ActivityThread.java:7918)

[nphuoc1625]

[Update USBPrinterService.kt, use use an explicit intent with a packageName]

Fix bug that intent.getBooleanExtra(UsbManager.EXTRA_PERMISSION_GRANTED always return false even when accepted permission when connect USB device

From https://developer.android.com/about/versions/14/behavior-changes-14#safer-intents

I used an Explicit Intent that passed in context.packageName, also changed PendingIntent.FLAG_IMMUTABLE to PendingIntent.FLAG_MUTABLE