دسترسی به داده های اشتراک گذاری شده در اندروید

val blobStoreManager =  
getSystemService(Context.BLOB_STORE_SERVICE) as BlobStoreManager

val blobHandle = BlobHandle.createWithSha256(sha256DigestBytes,

        "Sample photos",

        System.currentTimeMillis() + TimeUnit.DAYS.toMillis(1),

        "photoTrainingDataset")

try {

    val input = ParcelFileDescriptor.AutoCloseInputStream(

            blobStoreManager.openBlob(blobHandle))

    useDataset(input)

}

Kotlin

BlobStoreManager blobStoreManager =

        ((BlobStoreManager) getSystemService(Context.BLOB_STORE_SERVICE));

if (blobStoreManager != null) {

    // The label "Sample photos" is visible to the user.

    BlobHandle blobHandle = BlobHandle.createWithSha256(

            sha256DigestBytes,

            "Sample photos",

            System.currentTimeMillis() + TimeUnit.DAYS.toMillis(1),

            "photoTrainingDataset");

    try (InputStream input = new ParcelFileDescriptor.AutoCloseInputStream(

            blobStoreManager.openBlob(blobHandle))) {

        useDataset(input);

    }

}

val sessionId = blobStoreManager.createSession(blobHandle)

try {

val session = blobStoreManager.openSession(sessionId)

try {

// For this example, write 200 MiB at the beginning of the file.

val output = ParcelFileDescriptor.AutoCloseOutputStream(

session.openWrite(0, 1024 * 1024 * 200))

writeDataset(output)

session.apply {

allowSameSignatureAccess()

allowPackageAccess(your-app-package,

app-certificate)

allowPackageAccess(some-other-app-package,

app-certificate)

commit(mainExecutor, callback)

}

}

}

Kotlin

long sessionId = blobStoreManager.createSession(blobHandle);

try (BlobStoreManager.Session session =

blobStoreManager.openSession(sessionId)) {

// For this example, write 200 MiB at the beginning of the file.

try (OutputStream output = new ParcelFileDescriptor.AutoCloseOutputStream(

session.openWrite(0, 1024 * 1024 * 200)))

writeDataset(output);

session.allowSameSignatureAccess();

session.allowPackageAccess(your-app-package,

app-certificate);

session.allowPackageAccess(some-other-app-package,

app-certificate);

session.commit(getMainExecutor(), callback);

}

}

Java