String bucketName = "examplebucket-1250000000"; // Format: BucketName-APPID;
final GetBucketRequest getBucketRequest = new GetBucketRequest(bucketName);

// Prefix matching, used to specify the prefix address of the returned objects.
getBucketRequest.setPrefix("dir/");

// The maximum number of entries returned in a single response, with a default value of 1,000.
getBucketRequest.setMaxKeys(100);

cosXmlService.getBucketAsync(getBucketRequest, new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        GetBucketResult getBucketResult = (GetBucketResult) result;
        if (getBucketResult.listBucket.isTruncated) {
            // Indicates that data is truncated and the next page of data needs to be fetched.
            prevPageResult = getBucketResult;
        }
    }

    // If you call the API using kotlin, note that the exception in the callback method must be nullable. Otherwise, the onFail method will not be called, as follows:
    // The type of clientException is CosXmlClientException?, and the type of serviceException is CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest cosXmlRequest,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});

String bucketName = "examplebucket-1250000000"; // Format: BucketName-APPID;

GetBucketRequest getBucketRequest = new GetBucketRequest(bucketName);

// Prefix matching, used to specify the prefix address of the returned objects.
getBucketRequest.setPrefix("dir/");

// prevPageResult is the result returned from the previous page, and the nextMarker here indicates the starting position of the next page.
String nextMarker = prevPageResult.listBucket.nextMarker;
getBucketRequest.setMarker(nextMarker);

// The maximum number of entries returned in a single response, with a default value of 1,000.
getBucketRequest.setMaxKeys(100);

cosXmlService.getBucketAsync(getBucketRequest, new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        GetBucketResult getBucketResult = (GetBucketResult) result;
        if (getBucketResult.listBucket.isTruncated) {
            // Indicates that data is truncated and the next page of data needs to be fetched.
        }
    }

    // If you call the API using kotlin, note that the exception in the callback method must be nullable. Otherwise, the onFail method will not be called, as follows:
    // The type of clientException is CosXmlClientException?, and the type of serviceException is CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest cosXmlRequest,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});

String bucketName = "examplebucket-1250000000"; // Format: BucketName-APPID;
GetBucketRequest getBucketRequest = new GetBucketRequest(bucketName);

// Prefix matching, used to specify the prefix address of the returned objects.
getBucketRequest.setPrefix("dir/");

// The maximum number of entries returned in a single response, with a default value of 1,000.
getBucketRequest.setMaxKeys(100);

// The delimiter is a single character. If a Prefix is present,
// Then, identical paths between the Prefix and the delimiter are grouped into a single category and defined as the Common Prefix.
// Then, all Common Prefixes are listed. If no Prefix is present, the process starts from the beginning of the path.
getBucketRequest.setDelimiter("/");

cosXmlService.getBucketAsync(getBucketRequest, new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        GetBucketResult getBucketResult = (GetBucketResult) result;
    }

    // If you call the API using kotlin, note that the exception in the callback method must be nullable. Otherwise, the onFail method will not be called, as follows:
    // The type of clientException is CosXmlClientException?, and the type of serviceException is CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest cosXmlRequest,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});

String bucketName = "examplebucket-1250000000"; // Format: BucketName-APPID;
final GetBucketObjectVersionsRequest getBucketRequest =
        new GetBucketObjectVersionsRequest(bucketName);

// Prefix matching, used to specify the prefix address of the returned objects.
getBucketRequest.setPrefix("dir/");

// The maximum number of entries returned in a single response, with a default value of 1,000.
getBucketRequest.setMaxKeys(100);

cosXmlService.getBucketObjectVersionsAsync(getBucketRequest,
        new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        GetBucketObjectVersionsResult getBucketResult =
                (GetBucketObjectVersionsResult) result;
        if (getBucketResult.listVersionResult.isTruncated) {
            // Indicates that data is truncated and the next page of data needs to be fetched.
            prevPageResult = getBucketResult;
        }
    }

    // If you call the API using kotlin, note that the exception in the callback method must be nullable. Otherwise, the onFail method will not be called, as follows:
    // The type of clientException is CosXmlClientException?, and the type of serviceException is CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest cosXmlRequest,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});

String bucketName = "examplebucket-1250000000"; // Format: BucketName-APPID;
final GetBucketObjectVersionsRequest getBucketRequest =
        new GetBucketObjectVersionsRequest(bucketName);

// Prefix matching, used to specify the prefix address of the returned objects.
getBucketRequest.setPrefix("dir/");

// The maximum number of entries returned in a single response, with a default value of 1,000.
getBucketRequest.setMaxKeys(100);

// prevPageResult is the result returned from the previous page, and the nextMarker and nextVersionIdMarker here
// Indicates the starting position of the next page.
getBucketRequest.setKeyMarker(prevPageResult.listVersionResult
        .nextKeyMarker);
getBucketRequest.setVersionIdMarker(prevPageResult.listVersionResult
        .nextVersionIdMarker);

cosXmlService.getBucketObjectVersionsAsync(getBucketRequest,
        new CosXmlResultListener() {
    @Override
    public void onSuccess(CosXmlRequest request, CosXmlResult result) {
        GetBucketObjectVersionsResult getBucketResult =
                (GetBucketObjectVersionsResult) result;
        if (getBucketResult.listVersionResult.isTruncated) {
            // Indicates that data is truncated and the next page of data needs to be fetched.
            prevPageResult = getBucketResult;
        }
    }

    // If you call the API using kotlin, note that the exception in the callback method must be nullable. Otherwise, the onFail method will not be called, as follows:
    // The type of clientException is CosXmlClientException?, and the type of serviceException is CosXmlServiceException?
    @Override
    public void onFail(CosXmlRequest cosXmlRequest,
                       @Nullable CosXmlClientException clientException,
                       @Nullable CosXmlServiceException serviceException) {
        if (clientException != null) {
            clientException.printStackTrace();
        } else {
            serviceException.printStackTrace();
        }
    }
});