OSSAsyncTask task = oss.asyncGetObject(...);

task.cancel(); // 可以取消任务

task.waitUntilFinished(); // 等待直到任务完成

GetObjectResult result = task.getResult(); // 阻塞等待结果返回

String endpoint = "http://oss-cn-hangzhou.aliyuncs.com";

// 明文设置secret的方式建议只在测试时使用，更多鉴权模式请参考后面的`访问控制`章节
OSSCredentialProvider credentialProvider = new OSSPlainTextAKSKCredentialProvider("<accessKeyId>", "<accessKeySecret>");

OSS oss = new OSSClient(getApplicationContext(), endpoint, credentialProvider);

// 构造上传请求
PutObjectRequest put = new PutObjectRequest("<bucketName>", "<objectKey>", "<uploadFilePath>");

// 异步上传时可以设置进度回调
put.setProgressCallback(new OSSProgressCallback<PutObjectRequest>() {
	@Override
	public void onProgress(PutObjectRequest request, long currentSize, long totalSize) {
		Log.d("PutObject", "currentSize: " + currentSize + " totalSize: " + totalSize);
	}
});

OSSAsyncTask task = oss.asyncPutObject(put, new OSSCompletedCallback<PutObjectRequest, PutObjectResult>() {
	@Override
	public void onSuccess(PutObjectRequest request, PutObjectResult result) {
		Log.d("PutObject", "UploadSuccess");
	}

	@Override
	public void onFailure(PutObjectRequest request, ClientException clientExcepion, ServiceException serviceException) {
		// 请求异常
		if (clientExcepion != null) {
			// 本地异常如网络异常等
			clientExcepion.printStackTrace();
		}
		if (serviceException != null) {
			// 服务异常
			Log.e("ErrorCode", serviceException.getErrorCode());
			Log.e("RequestId", serviceException.getRequestId());
			Log.e("HostId", serviceException.getHostId());
			Log.e("RawMessage", serviceException.getRawMessage());
		}
	}
});

// task.cancel(); // 可以取消任务

// task.waitUntilFinished(); // 可以等待直到任务完成

// 构造下载文件请求
GetObjectRequest get = new GetObjectRequest("<bucketName>", "<objectKey>");

OSSAsyncTask task = oss.asyncGetObject(get, new OSSCompletedCallback<GetObjectRequest, GetObjectResult>() {
	@Override
	public void onSuccess(GetObjectRequest request, GetObjectResult result) {
		// 请求成功
		Log.d("Content-Length", "" + getResult.getContentLength());

		InputStream inputStream = result.getObjectContent();

		byte[] buffer = new byte[2048];
		int len;

		try {
			while ((len = inputStream.read(buffer)) != -1) {
				// 处理下载的数据
			}
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

	@Override
	public void onFailure(GetObjectRequest request, ClientException clientExcepion, ServiceException serviceException) {
		// 请求异常
		if (clientExcepion != null) {
			// 本地异常如网络异常等
			clientExcepion.printStackTrace();
		}
		if (serviceException != null) {
			// 服务异常
			Log.e("ErrorCode", serviceException.getErrorCode());
			Log.e("RequestId", serviceException.getRequestId());
			Log.e("HostId", serviceException.getHostId());
			Log.e("RawMessage", serviceException.getRawMessage());
		}
	}
});

// task.cancel(); // 可以取消任务

// task.waitUntilFinished(); // 如果需要等待任务完成