TransferConfig transferConfig = new TransferConfig.Builder().build();
// Initialize TransferManager
TransferManager transferManager = new TransferManager(cosXmlService,
        transferConfig);

// Bucket name in the format of BucketName-APPID (APPID is required), which can be viewed in the COS console at https://console.cloud.tencent.com/cos5/bucket.
String bucket = "examplebucket-1250000000";
String cosPath = "exampleobject"; // The location identifier of the object in the bucket, i.e. the object key
String srcPath = new File(context.getCacheDir(), "exampleobject")
        .toString(); // The absolute path of the local file
// If there is an uploadId for the initialized multipart upload, assign the value of the uploadId here to resume the upload; otherwise, assign null
String uploadId = null;

PutObjectRequest putObjectRequest = new PutObjectRequest(bucket, cosPath, srcPath);
// Set the bandwidth limit for a single URL in bit/s. In the example, the limit is set to 1 Mbit/s
putObjectRequest.setTrafficLimit(1024 * 1024 * 8);

// Upload the file
COSXMLUploadTask cosxmlUploadTask = transferManager.upload(putObjectRequest, uploadId);

// Set the upload progress callback
cosxmlUploadTask.setCosXmlProgressListener(new CosXmlProgressListener() {
    @Override
    public void onProgress(long complete, long target) {
        // todo Do something to update progress...
    }
});
// Set the response callback
cosxmlUploadTask.setCosXmlResultListener(new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        COSXMLUploadTask.COSXMLUploadTaskResult uploadResult =
                (COSXMLUploadTask.COSXMLUploadTaskResult) result;
    }

    // If you are using Kotlin to call the API, please note that the exception in the callback method is nullable; otherwise, the onFail method will not be called, i.e.:
    // Is the type of clientException CosXmlClientException? Is the type of serviceException CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest request,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});
// Set the job status callback where you can view the job progress
cosxmlUploadTask.setTransferStateListener(new TransferStateListener() {
    @Override
    public void onStateChanged(TransferState state) {
        // todo notify transfer state
    }
});

//.cssg-snippet-body-start:[transfer-download-object]
// The advanced download API supports checkpoint restart. To do so, a HEAD request will be sent first to get file information before download.
// If you are using a temporary key or accessing with a sub-account, please make sure that you have HeadObject permission.

// Initialize TransferConfig. The default configuration is used here. If you need to customize it, please see the SDK API documentation.
TransferConfig transferConfig = new TransferConfig.Builder().build();
// Initialize TransferManager
TransferManager transferManager = new TransferManager(cosXmlService,
        transferConfig);

// Bucket name in the format of BucketName-APPID (APPID is required), which can be viewed in the COS console at https://console.cloud.tencent.com/cos5/bucket.
String bucket = "examplebucket-1250000000";
String cosPath = "exampleobject"; // The location identifier of the object in the bucket, i.e. the object key
// Local directory path
String savePathDir = context.getExternalCacheDir().toString();
// Name of the locally saved file; if this is null, the COS filename will be used
String savedFileName = "exampleobject";

GetObjectRequest getObjectRequest = new GetObjectRequest(bucket, cosPath, savePathDir, savedFileName);
// Set the bandwidth limit for a single URL in bit/s. In the example, the limit is set to 1 Mbit/s
getObjectRequest.setTrafficLimit(1024 * 1024 * 8);

Context applicationContext = context.getApplicationContext(); // application
// context
COSXMLDownloadTask cosxmlDownloadTask =
        transferManager.download(applicationContext, getObjectRequest);

// Set the download progress callback
cosxmlDownloadTask.setCosXmlProgressListener(new CosXmlProgressListener() {
    @Override
    public void onProgress(long complete, long target) {
        // todo Do something to update progress...
    }
});
// Set the response callback
cosxmlDownloadTask.setCosXmlResultListener(new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        COSXMLDownloadTask.COSXMLDownloadTaskResult downloadTaskResult =
                (COSXMLDownloadTask.COSXMLDownloadTaskResult) result;
    }

    // If you are using Kotlin to call the API, please note that the exception in the callback method is nullable; otherwise, the onFail method will not be called, i.e.:
    // Is the type of clientException CosXmlClientException? Is the type of serviceException CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest request,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});
// Set the job status callback where you can view the job progress
cosxmlDownloadTask.setTransferStateListener(new TransferStateListener() {
    @Override
    public void onStateChanged(TransferState state) {
        // todo notify transfer state
    }
});