Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels) Summary: [Inherited Constants](https://developer.android.com/reference/android/nfc/NfcAntennaInfo#inhconstants) \| [Fields](https://developer.android.com/reference/android/nfc/NfcAntennaInfo#lfields) \| [Ctors](https://developer.android.com/reference/android/nfc/NfcAntennaInfo#pubctors) \| [Methods](https://developer.android.com/reference/android/nfc/NfcAntennaInfo#pubmethods) \| [Inherited Methods](https://developer.android.com/reference/android/nfc/NfcAntennaInfo#inhmethods)

# NfcAntennaInfo

*** ** * ** ***

` public final class NfcAntennaInfo `   
` extends https://developer.android.com/reference/java/lang/Object ` ` implements https://developer.android.com/reference/android/os/Parcelable `

|---|---|
| [java.lang.Object](https://developer.android.com/reference/java/lang/Object) ||
| ↳ | android.nfc.NfcAntennaInfo |

<br />

*** ** * ** ***

Contains information on all available Nfc antennas on an Android device as well as information on the device itself in relation positioning of the antennas.

## Summary

### Inherited constants

From interface `https://developer.android.com/reference/android/os/Parcelable` `int` `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR`

Descriptor bit used with `https://developer.android.com/reference/android/os/Parcelable#describeContents()`: indicates that the Parcelable object's flattened representation includes a file descriptor.
`int` `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`

Flag for use with `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`: the object being written is a return value, that is the result of a function such as "`Parcelable someFunction()`", "`void someFunction(out Parcelable)`", or "`void someFunction(inout Parcelable)`".

| ### Fields ||
|---|---|
| ` public static final https://developer.android.com/reference/android/os/Parcelable.Creator<https://developer.android.com/reference/android/nfc/NfcAntennaInfo>` | `https://developer.android.com/reference/android/nfc/NfcAntennaInfo#CREATOR` <br /> |

| ### Public constructors ||
|---|---|
| ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#NfcAntennaInfo(int,%20int,%20boolean,%20java.util.List<android.nfc.AvailableNfcAntenna>)(int deviceWidth, int deviceHeight, boolean deviceFoldable, https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/nfc/AvailableNfcAntenna> availableNfcAntennas) ` |

| ### Public methods ||
|---|---|
| ` int` | ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#describeContents()() ` Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. |
| ` https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/nfc/AvailableNfcAntenna>` | ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#getAvailableNfcAntennas()() ` Get all NFC antennas that exist on the device. |
| ` int` | ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#getDeviceHeight()() ` Height of the device in millimeters. |
| ` int` | ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#getDeviceWidth()() ` Width of the device in millimeters. |
| ` boolean` | ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#isDeviceFoldable()() ` *This method was deprecated in API level 37. This method is deprecated and no longer maintained.* |
| ` void` | ` https://developer.android.com/reference/android/nfc/NfcAntennaInfo#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) ` Flatten this object in to a Parcel. |

### Inherited methods

From class ` https://developer.android.com/reference/java/lang/Object ` ` https://developer.android.com/reference/java/lang/Object` ` https://developer.android.com/reference/java/lang/Object#clone()() `

Creates and returns a copy of this object.
` boolean` ` https://developer.android.com/reference/java/lang/Object#equals(java.lang.Object)(https://developer.android.com/reference/java/lang/Object obj) `

Indicates whether some other object is "equal to" this one.
` void` ` https://developer.android.com/reference/java/lang/Object#finalize()() `

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
` final https://developer.android.com/reference/java/lang/Class<?>` ` https://developer.android.com/reference/java/lang/Object#getClass()() `

Returns the runtime class of this `Object`.
` int` ` https://developer.android.com/reference/java/lang/Object#hashCode()() `

Returns a hash code value for the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#notify()() `

Wakes up a single thread that is waiting on this object's monitor.
` final void` ` https://developer.android.com/reference/java/lang/Object#notifyAll()() `

Wakes up all threads that are waiting on this object's monitor.
` https://developer.android.com/reference/java/lang/String` ` https://developer.android.com/reference/java/lang/Object#toString()() `

Returns a string representation of the object.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long,%20int)(long timeoutMillis, int nanos) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait(long)(long timeoutMillis) `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*, or until a certain amount of real time has elapsed.
` final void` ` https://developer.android.com/reference/java/lang/Object#wait()() `

Causes the current thread to wait until it is awakened, typically by being *notified* or *interrupted*.
From interface ` https://developer.android.com/reference/android/os/Parcelable ` ` abstract int` ` https://developer.android.com/reference/android/os/Parcelable#describeContents()() `

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation.
` abstract void` ` https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)(https://developer.android.com/reference/android/os/Parcel dest, int flags) `

Flatten this object in to a Parcel.

## Fields

### CREATOR

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public static final Creator<NfcAntennaInfo> CREATOR
```

<br />

<br />

## Public constructors

### NfcAntennaInfo

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public NfcAntennaInfo (int deviceWidth, 
                int deviceHeight, 
                boolean deviceFoldable, 
                List<AvailableNfcAntenna> availableNfcAntennas)
```

<br />

<br />

| Parameters ||
|---|---|
| `deviceWidth` | `int` <br /> |
| `deviceHeight` | `int` <br /> |
| `deviceFoldable` | `boolean` <br /> |
| `availableNfcAntennas` | `List`: This value cannot be `null`. <br /> |

## Public methods

### describeContents

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int describeContents ()
```

Describe the kinds of special objects contained in this Parcelable instance's marshaled representation. For example, if the object will include a file descriptor in the output of `https://developer.android.com/reference/android/os/Parcelable#writeToParcel(android.os.Parcel,%20int)`, the return value of this method must include the `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` bit.

<br />

| Returns ||
|---|---|
| `int` | a bitmask indicating the set of special object types marshaled by this Parcelable object instance. Value is either `0` or - `https://developer.android.com/reference/android/os/Parcelable#CONTENTS_FILE_DESCRIPTOR` |

### getAvailableNfcAntennas

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public List<AvailableNfcAntenna> getAvailableNfcAntennas ()
```

Get all NFC antennas that exist on the device.

<br />

| Returns ||
|---|---|
| `https://developer.android.com/reference/java/util/List<https://developer.android.com/reference/android/nfc/AvailableNfcAntenna>` | This value cannot be `null`. <br /> |

### getDeviceHeight

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getDeviceHeight ()
```

Height of the device in millimeters.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### getDeviceWidth

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public int getDeviceWidth ()
```

Width of the device in millimeters.

<br />

| Returns ||
|---|---|
| `int` | <br /> |

### isDeviceFoldable

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)   
Deprecated in [API level 37](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public boolean isDeviceFoldable ()
```

<br />

**This method was deprecated in API level 37.**   

This method is deprecated and no longer maintained.

Whether the device is foldable. When the device is foldable, the 0, 0 is considered to be top-left when the device is unfolded and the screens are facing the user. For non-foldable devices 0, 0 is top-left when the user is facing the screen.

<br />

| Returns ||
|---|---|
| `boolean` | <br /> |

### writeToParcel

Added in [API level 34](https://developer.android.com/guide/topics/manifest/uses-sdk-element#ApiLevels)

```
public void writeToParcel (Parcel dest, 
                int flags)
```

Flatten this object in to a Parcel.

<br />

| Parameters ||
|---|---|
| `dest` | `Parcel`: This value cannot be `null`. <br /> |
| `flags` | `int`: Additional flags about how the object should be written. May be 0 or `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE`. Value is either `0` or a combination of the following: - `https://developer.android.com/reference/android/os/Parcelable#PARCELABLE_WRITE_RETURN_VALUE` |