Asset

AI-generated Key Takeaways

• Asset objects represent binary blobs shared between data items in the Android Wear network, replicating on demand.

• You can create Asset objects from various sources like byte arrays, file descriptors, existing digests, or content URIs.

• Asset provides methods to access its data via digest, file descriptor, or URI.

• DataItemAsset represents an Asset that's been added to the network through a PutDataRequest.

• The Wearable API copies the file descriptor's data when the PutDataRequest is provided, so you should close the FD afterwards.

public class Asset extends Object
implements Parcelable Parcelable

An Asset is a binary blob shared between data items that is replicated across the wearable network on demand.

It may represent an Asset not yet added with the Android Wear network. A DataItemAsset represents an Asset after it has been added to the network through a PutDataRequest.

Inherited Constant Summary

From interface android.os.Parcelable

int	CONTENTS_FILE_DESCRIPTOR
int	PARCELABLE_WRITE_RETURN_VALUE

Field Summary

public static final Creator<Asset>

CREATOR

Public Method Summary

static Asset	createFromBytes(byte[] assetData) Creates an Asset using a byte array.
static Asset	createFromFd(ParcelFileDescriptor fd) Creates an Asset using a file descriptor.
static Asset	createFromRef(String digest) Create an Asset using an existing Asset's digest.
static Asset	createFromUri(Uri uri) Creates an Asset using a content URI.
boolean	equals(Object o)
String	getDigest() Returns the digest associated with the Asset data.
ParcelFileDescriptor	getFd() Returns the file descriptor referencing the Asset.
Uri	getUri() Returns the uri referencing the Asset data.
int	hashCode()
String	toString()
void	writeToParcel(Parcel dest, int flags)

Inherited Method Summary

From class java.lang.Object

Object	clone()
boolean	equals(Object arg0)
void	finalize()
final Class<?>	getClass()
int	hashCode()
final void	notify()
final void	notifyAll()
String	toString()
final void	wait(long arg0, int arg1)
final void	wait(long arg0)
final void	wait()

From interface android.os.Parcelable

abstract int	describeContents()
abstract void	writeToParcel(Parcel arg0, int arg1)

Fields

public static final Creator<Asset> CREATOR

Public Methods

public static Asset createFromBytes (byte[] assetData)

Creates an Asset using a byte array.

public static Asset createFromFd (ParcelFileDescriptor fd)

Creates an Asset using a file descriptor. The FD should be closed after being successfully sent in a DataClient.putDataItem(PutDataRequest) request.

The Wearable API will copy the file descriptor's data in the caller's process as soon as the corresponding PutDataRequest is provided to the API.

public static Asset createFromRef (String digest)

Create an Asset using an existing Asset's digest.

public static Asset createFromUri (Uri uri)

Creates an Asset using a content URI. The Asset will be opened using ContentResolver.openFileDescriptor(Uri, String).

public boolean equals (Object o)

public String getDigest ()

Returns the digest associated with the Asset data. A digest is a content identifier used to identify the Asset across devices.

Returns

• the Asset's digest, or null if the digest is unset

public ParcelFileDescriptor getFd ()

Returns the file descriptor referencing the Asset.

public Uri getUri ()

Returns the uri referencing the Asset data.

public int hashCode ()

public String toString ()

public void writeToParcel (Parcel dest, int flags)