MifareUltralight Class
Definition
Important
Some information relates to prerelease product that may be substantially modified before it’s released. Microsoft makes no warranties, express or implied, with respect to the information provided here.
Provides access to MIFARE Ultralight properties and I/O operations on a Tag.
[Android.Runtime.Register("android/nfc/tech/MifareUltralight", DoNotGenerateAcw=true)]
public sealed class MifareUltralight : Android.Nfc.Tech.BasicTagTechnology, IDisposable, Java.Interop.IJavaPeerable[<Android.Runtime.Register("android/nfc/tech/MifareUltralight", DoNotGenerateAcw=true)>]
type MifareUltralight = class
inherit BasicTagTechnology
interface ITagTechnology
interface ICloseable
interface IJavaObject
interface IDisposable
interface IJavaPeerable- Inheritance
- Attributes
- Implements
Remarks
Provides access to MIFARE Ultralight properties and I/O operations on a Tag.
Acquire a MifareUltralight object using #get.
MIFARE Ultralight compatible tags have 4 byte pages #PAGE_SIZE. The primary operations on an Ultralight tag are #readPages and #writePage.
The original MIFARE Ultralight consists of a 64 byte EEPROM. The first 4 pages are for the OTP area, manufacturer data, and locking bits. They are readable and some bits are writable. The final 12 pages are the user read/write area. For more information see the NXP data sheet MF0ICU1.
The MIFARE Ultralight C consists of a 192 byte EEPROM. The first 4 pages are for OTP, manufacturer data, and locking bits. The next 36 pages are the user read/write area. The next 4 pages are additional locking bits, counters and authentication configuration and are readable. The final 4 pages are for the authentication key and are not readable. For more information see the NXP data sheet MF0ICU2.
Implementation of this class on a Android NFC device is optional. If it is not implemented, then MifareUltralight will never be enumerated in Tag#getTechList. If it is enumerated, then all MifareUltralight I/O operations will be supported. In either case, NfcA will also be enumerated on the tag, because all MIFARE Ultralight tags are also NfcA tags.
<p class="note"><strong>Note:</strong> Methods that perform I/O operations require the android.Manifest.permission#NFC permission.
Java documentation for android.nfc.tech.MifareUltralight.
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.
Fields
| PageSize |
Size of a MIFARE Ultralight page in bytes |
| TypeUltralight |
Obsolete.
A MIFARE Ultralight tag |
| TypeUltralightC |
Obsolete.
A MIFARE Ultralight C tag |
| TypeUnknown |
Obsolete.
A MIFARE Ultralight compatible tag of unknown type |
Properties
| Class |
Returns the runtime class of this |
| Handle |
The handle to the underlying Android instance. (Inherited from Object) |
| IsConnected |
Helper to indicate if I/O operations should be possible. |
| JniIdentityHashCode | (Inherited from Object) |
| JniPeerMembers | |
| MaxTransceiveLength |
Return the maximum number of bytes that can be sent with |
| PeerReference | (Inherited from Object) |
| Tag |
Get the Tag object backing this ITagTechnology object. |
| ThresholdClass | (Inherited from BasicTagTechnology) |
| ThresholdType | (Inherited from BasicTagTechnology) |
| Timeout |
Get the current |
| Type |
Return the MIFARE Ultralight type of the tag. |
Methods
| Clone() |
Creates and returns a copy of this object. (Inherited from Object) |
| Close() |
Disable I/O operations to the tag from this ITagTechnology object, and release resources. |
| Connect() |
Enable I/O operations to the tag from this ITagTechnology 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) |
| Get(Tag) |
Get an instance of |
| GetHashCode() |
Returns a hash code value for the object. (Inherited from Object) |
| 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) |
| ReadPages(Int32) |
Read 4 pages (16 bytes). |
| ReadPagesAsync(Int32) | |
| 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) |
| Transceive(Byte[]) |
Send raw NfcA data to a tag and receive the response. |
| TransceiveAsync(Byte[]) | |
| 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) |
| WritePage(Int32, Byte[]) |
Write 1 page (4 bytes). |
| WritePageAsync(Int32, Byte[]) | |
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
| ConnectAsync(ITagTechnology) | |
| JavaCast<TResult>(IJavaObject) |
Performs an Android runtime-checked type conversion. |
| JavaCast<TResult>(IJavaObject) | |
| GetJniTypeName(IJavaPeerable) | |