Let me know if you need any further help. Lalit-Fauzdar answer and the mentioned reference is the way to go about it. I am sharing a slight upgrade to the implementation. Stack Overflow for Teams — Collaborate and share knowledge with a private group. Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Amazon s3 upload multiple files android Ask Question. Asked 4 years, 2 months ago. Active 9 months ago. Viewed 5k times.
Improve this question. Prashant 1, 1 1 gold badge 15 15 silver badges 32 32 bronze badges. Saef Myth Saef Myth 4 4 silver badges 18 18 bronze badges. Add a comment. Active Oldest Votes. I know I'm late to answer but it will help others who'll come here looking for an answer. Context import com. TransferListener import com. TransferState import com. TransferUtility import io. Completable import io.
Observable import io. Single import java. We can queried for base on id , type upload, download, or any or state Such as paused from anywhere within the app see blow. The TransferObserver gives access to the state, total bytes transferred thus far, total bytes to transfer and a unique id you can use to keep distinct transfers. With Transfer Manager, there is no guarantee a transfer can paused and there are multiple way to paused.
Also paused require developer to serialize the metadata of the transfer to persist to storage. The Transfer Utility handlers persists all the metadata of the transfer for you. Even if you application killed, crashed or loss connectivity transfers automatically paused. Even you can manually paused the transfer by id with pause transferd id paused all downloads pauseAllWithType TransferType. We tell the TransferUtility the operation to perform, and if it returns false, it is likely because the transfer was in an invalid state for that operation e.
If we want to pause or cancel all transfers, we simply call pause all with the type we want to pause. If you wanted to pause all transfers, you can pass TransferType.
When you selecting a file to download, the sample uses a separate activity called DownloadSelectionActivity. This activity is responsible for displaying all of the objects in the S3 bucket and lets the user select one to download, returning the key to the DownloadActivity.
To get a list of objects in our bucket, we must use the low level AmazonS3Client. We can use the same one we used to instantiate the TransferUtility. All we need to do to download a file is to specify where we want the file placed. Then, we add the returned TransferObserver to the UI.
If the Android Service was not running, it will start automatically. The Transfer Utility will automatically pause and resume transfers if the device loses network connectivity. There is no code needed to enable this feature. The Transfer Utility will also automatically pause transfers if the phone crashes, which is one reason why it is recommended to check to existing transfers when your app begins. The Transfer Utility requires at least the first two permissions shown below, which should be placed outside the application tags:.
The permissions for reading and writing external storage, shown above, may be necessary depending on where you want to store downloaded files and where the files you plan upload are located. The following shows how to declare the Transfer Utility service, and should be placed within the application tags:. Important : If this service declaration is spelled incorrectly, neither Android nor your IDE will display a warning.
We hope that you have found this tutorial helpful, and the Transfer Utility a powerful tool for developing your application.
As always we greatly appreciate feedback as either a comment on this post, an issue on GitHub, or a post on our forums. Skip to content. Star Permalink main. Branches Tags. Could not load branches.
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