UsbManager Class

Reference

Definition

Namespace:: Android.Hardware.Usb

Assembly:: Mono.Android.dll

Important

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This class allows you to access the state of USB and communicate with USB devices.

[Android.Runtime.Register("android/hardware/usb/UsbManager", DoNotGenerateAcw=true)]
public class UsbManager : Java.Lang.Object

[<Android.Runtime.Register("android/hardware/usb/UsbManager", DoNotGenerateAcw=true)>]
type UsbManager = class
    inherit Object

Inheritance: Object

Object
UsbManager

Attributes: RegisterAttribute

Remarks

This class allows you to access the state of USB and communicate with USB devices. Currently only host mode is supported in the public API.

<div class="special reference"> <h3>Developer Guides</h3>

For more information about communicating with USB hardware, read the USB developer guide.

</div>

Java documentation for android.hardware.usb.UsbManager.

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.

Constructors

UsbManager(IntPtr, JniHandleOwnership)

A constructor used when creating managed representations of JNI objects; called by the runtime.

Fields

ActionUsbAccessoryAttached	Activity intent sent when user attaches a USB accessory.
ActionUsbAccessoryDetached	Broadcast Action: A broadcast for USB accessory detached event.
ActionUsbDeviceAttached	Activity intent sent when user attaches a USB device.
ActionUsbDeviceDetached	Broadcast Action: A broadcast for USB device detached event.
ExtraAccessory	Name of extra for `#ACTION_USB_ACCESSORY_ATTACHED` and `#ACTION_USB_ACCESSORY_DETACHED` broadcasts containing the `UsbAccessory` object for the accessory.
ExtraDevice	Name of extra for `#ACTION_USB_DEVICE_ATTACHED` and `#ACTION_USB_DEVICE_DETACHED` broadcasts containing the `UsbDevice` object for the device.
ExtraPermissionGranted	Name of extra added to the `android.app.PendingIntent` passed into `#requestPermission(UsbDevice, PendingIntent)` or `#requestPermission(UsbAccessory, PendingIntent)` containing a boolean value indicating whether the user granted permission or not.

Properties

Class	Returns the runtime class of this `Object`. (Inherited from Object)
DeviceList	Returns a HashMap containing all USB devices currently attached.
Handle	The handle to the underlying Android instance. (Inherited from Object)
JniIdentityHashCode	(Inherited from Object)
JniPeerMembers
PeerReference	(Inherited from Object)
ThresholdClass	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.
ThresholdType	This API supports the Mono for Android infrastructure and is not intended to be used directly from your code.

Methods

Clone()	Creates and returns a copy of this object. (Inherited from Object)
Dispose()	(Inherited from Object)
Dispose(Boolean)	(Inherited from Object)
Equals(Object)	Indicates whether some other object is "equal to" this one. (Inherited from Object)
GetAccessoryList()	Returns a list of currently attached USB accessories.
GetHashCode()	Returns a hash code value for the object. (Inherited from Object)
HasPermission(UsbAccessory)	Returns true if the caller has permission to access the accessory.
HasPermission(UsbDevice)	Returns true if the caller has permission to access the device.
JavaFinalize()	Called by the garbage collector on an object when garbage collection determines that there are no more references to the object. (Inherited from Object)
Notify()	Wakes up a single thread that is waiting on this object's monitor. (Inherited from Object)
NotifyAll()	Wakes up all threads that are waiting on this object's monitor. (Inherited from Object)
OpenAccessory(UsbAccessory)	Opens a file descriptor for reading and writing data to the USB accessory.
OpenDevice(UsbDevice)	Opens the device so it can be used to send and receive data using `android.hardware.usb.UsbRequest`.
RequestPermission(UsbAccessory, PendingIntent)	Requests temporary permission for the given package to access the accessory.
RequestPermission(UsbDevice, PendingIntent)	Requests temporary permission for the given package to access the device.
SetHandle(IntPtr, JniHandleOwnership)	Sets the Handle property. (Inherited from Object)
ToArray<T>()	(Inherited from Object)
ToString()	Returns a string representation of the object. (Inherited from Object)
UnregisterFromRuntime()	(Inherited from Object)
Wait()	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>. (Inherited from Object)
Wait(Int64, Int32)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)
Wait(Int64)	Causes the current thread to wait until it is awakened, typically by being <em>notified</em> or <em>interrupted</em>, or until a certain amount of real time has elapsed. (Inherited from Object)

Explicit Interface Implementations

IJavaPeerable.Disposed()	(Inherited from Object)
IJavaPeerable.DisposeUnlessReferenced()	(Inherited from Object)
IJavaPeerable.Finalized()	(Inherited from Object)
IJavaPeerable.JniManagedPeerState	(Inherited from Object)
IJavaPeerable.SetJniIdentityHashCode(Int32)	(Inherited from Object)
IJavaPeerable.SetJniManagedPeerState(JniManagedPeerStates)	(Inherited from Object)
IJavaPeerable.SetPeerReference(JniObjectReference)	(Inherited from Object)

Extension Methods

JavaCast<TResult>(IJavaObject)	Performs an Android runtime-checked type conversion.
JavaCast<TResult>(IJavaObject)
GetJniTypeName(IJavaPeerable)

Applies to

通过