/// <summary>
///
/// </summary>
protected virtual void OnUsbDeviceDetached(UsbDevice device)
{
if (m_UsbDevice.GetDeviceName() == device.GetDeviceName())
{
Close();
UsbManager.main.onUsbDeviceDetached -= OnUsbDeviceDetached;
}
}
public bool grantAutomaticPermission(UsbDevice usbDevice)
{
try
{
Context context = Application.Context;
PackageManager pkgManager = context.PackageManager;
ApplicationInfo appInfo = pkgManager.GetApplicationInfo(context.PackageName, PackageInfoFlags.MetaData);
Class serviceManagerClass = Class.ForName("Android.OS.ServiceManager");
Method getServiceMethod = serviceManagerClass.GetDeclaredMethod("getService", serviceManagerClass);
getServiceMethod.Accessible = true;
IBinder binder = (IBinder)getServiceMethod.Invoke(null, Context.UsbService);
Class iUsbManagerClass = Class.ForName("android.hardware.usb.IUsbManager");
Class stubClass = Class.ForName("android.hardware.usb.IUsbManager$Stub");
Method asInterfaceMethod = stubClass.GetDeclaredMethod("asInterface", iUsbManagerClass);
asInterfaceMethod.Accessible = true;
object iUsbManager = asInterfaceMethod.Invoke(null, (Java.Lang.Object)binder);
//System.out.println("UID : " + appInfo.uid + " " + appInfo.processName + " " + appInfo.permission);
Method grantDevicePermissionMethod = iUsbManagerClass.GetDeclaredMethod("grantDevicePermission", (Java.Lang.Class)UsbDevice.GetDeviceName(0));
grantDevicePermissionMethod.Accessible = true;
grantDevicePermissionMethod.Invoke((Java.Lang.Object)iUsbManager, usbDevice, appInfo.Uid);
//System.out.println("Method OK : " + binder + " " + iUsbManager);
return(true);
}
catch (System.Exception ex)
{
Toast.MakeText(Application.Context, ex.Message, ToastLength.Long).Show();
using (StreamWriter file = new StreamWriter(archivo))
{
file.Write(ex.Message);
}
//System.err.println("Error trying to assing automatic usb permission : ");
//ex.printStackTrace();
return(false);
}
}