Customizable Component

From now on, FileDownloader support following components to be customized by yourself:

Name	Interface	Default Impl
Connection	FileDownloadConnection	FileDownloadUrlConnection
OutputStream	FileDownloadOutputStream	FileDownloadRandomAccessFile
Database	FileDownloadDatabase	DefaultDatabaseImpl
ConnectionCountAdapter	ConnectionCountAdapter	DefaultConnectionCountAdapter
IdGenerator	IdGenerator	DefaultIdGenerator
ForegroundServiceConfig	ForegroundServiceConfig	ForegroundServiceConfig

The default connection count strategy for each task, you can customize it through ConnectionCountAdapter:

• one connection: file length [0, 1MB)
• two connections: file length [1MB, 5MB)
• three connections: file length [5MB, 50MB)
• four connections: file length [50MB, 100MB)
• five connections: file length [100MB, -)

You can refer to here to know about customizing ForegroundServiceConfig.

How to valid it?

中文文档

Just create your own DownloadMgrInitialParams.InitCustomMaker and put those customized components to it, finally init the FileDownloader with it: FileDownloader#init

Step 1

Implementing your own customized component if you want. P.S: You can refer the default-impl.

Step 2

Putting it into FileDownloader when you setup the FileDownloader on the Application#onCreate method:

FileDownloader.setupOnApplicationOnCreate(this)
        .database(/*You can put your customized database component here*/)
        .outputStreamCreator(/*You can put your customized output-stream component here*/)
        .connectionCreator(/*You can put your customized connection component here*/)
        .commit();

Others

If you want to use okhttp as your connection component, the simplest way is this repo.