DownloadMediaMessageHandler 26.1.1 API

All Implemented Interfaces:
```
public interface DownloadMediaMessageHandler

                    
```
Download media message callback.
Listens for each stage of a media message download operation (e.g. downloading image, file, voice, or video attachments from a received message).
Callback order:
- Success: onProgress... → onSuccess
- Failure: onProgress... → onError
- Cancel: onProgress... → onCanceled

Nested Class Summary

Nested Classes
Modifier and Type	Class	Description

Field Summary

Fields
Modifier and Type	Field	Description

Constructor Summary

Constructors
Constructor	Description

Enum Constant Summary

Enum Constants
Enum Constant	Description

Method Summary

Modifier and Type	Method	Description
`abstract Unit`	`onSuccess(Message message)`	Called when the download succeeds.
`abstract Unit`	`onProgress(Message message, Integer progress)`	Called to report download progress.
`abstract Unit`	`onError(Message message, NCError error)`	Called when the download fails.
`abstract Unit`	`onCanceled(Message message)`	Called when the download is cancelled.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
- Method Detail
  - onSuccess
```
 abstract Unit onSuccess(Message message)
```
    Called when the download succeeds.
    
    Parameters:
    
    message - The message object after download completion
  - onProgress
```
 abstract Unit onProgress(Message message, Integer progress)
```
    Called to report download progress.
    
    Parameters:
    
    message - The message being downloaded
    
    progress - Download progress (0-100)
  - onError
```
 abstract Unit onError(Message message, NCError error)
```
    Called when the download fails.
    
    Parameters:
    
    message - The message that failed to download
    
    error - Error info
  - onCanceled
```
 abstract Unit onCanceled(Message message)
```
    Called when the download is cancelled.
    
    Parameters:
    
    message - The message whose download was cancelled