```
public final class AttachmentsPickerViewModel
extends ViewModel
                    
```
ViewModel responsible for handling the state and business logic of attachments.
Used to load file and media images that are then connected to the UI. It also keeps state of the selected items and prepares items before sending them.

Field Summary

Fields
Modifier and Type	Field	Description
`private final Channel`	`channel`
`private AttachmentsPickerMode`	`attachmentsPickerMode`
`private List<AttachmentPickerItemState>`	`images`
`private List<AttachmentPickerItemState>`	`files`
`private List<AttachmentPickerItemState>`	`attachments`
`private List<AttachmentPickerItemState>`	`polls`
`private final Boolean`	`hasPickedFiles`
`private final Boolean`	`hasPickedImages`
`private final Boolean`	`hasPickedAttachments`
`private Boolean`	`isShowingAttachments`

Constructor Summary

Constructors
Constructor	Description
`AttachmentsPickerViewModel(StorageHelperWrapper storageHelper, StateFlow<ChannelState> channelState, SavedStateHandle savedStateHandle)`
`AttachmentsPickerViewModel(StorageHelperWrapper storageHelper, StateFlow<ChannelState> channelState)`

Method Summary

Modifier and Type	Method	Description
`final Channel`	`getChannel()`	The information for the current Channel.
`final AttachmentsPickerMode`	`getAttachmentsPickerMode()`	Currently selected picker mode.
`final Unit`	`setAttachmentsPickerMode(AttachmentsPickerMode attachmentsPickerMode)`
`final List<AttachmentPickerItemState>`	`getImages()`	List of images available, from the system.
`final Unit`	`setImages(List<AttachmentPickerItemState> images)`	List of images available, from the system.
`final List<AttachmentPickerItemState>`	`getFiles()`	List of files available, from the system.
`final Unit`	`setFiles(List<AttachmentPickerItemState> files)`	List of files available, from the system.
`final List<AttachmentPickerItemState>`	`getAttachments()`	List of attachments available, from the system.
`final Unit`	`setAttachments(List<AttachmentPickerItemState> attachments)`	List of attachments available, from the system.
`final List<AttachmentPickerItemState>`	`getPolls()`	List of polls available, from the system.
`final Unit`	`setPolls(List<AttachmentPickerItemState> polls)`	List of polls available, from the system.
`final Boolean`	`getHasPickedFiles()`
`final Boolean`	`getHasPickedImages()`
`final Boolean`	`getHasPickedAttachments()`
`final Boolean`	`getIsShowingAttachments()`
`final Unit`	`setIsShowingAttachments(Boolean isShowingAttachments)`
`final Unit`	`loadData()`	Loads all the items based on the current type.
`final Unit`	`changeAttachmentPickerMode(AttachmentsPickerMode attachmentsPickerMode, Function0<Boolean> hasPermission)`	Changes the currently selected AttachmentsPickerMode and loads the required data.
`final Unit`	`changeAttachmentState(Boolean showAttachments)`	Notifies the ViewModel if we should show attachments or not.
`final Unit`	`changeSelectedAttachments(AttachmentPickerItemState attachmentItem)`	Triggered when an AttachmentMetaData is selected in the list.
`final List<Attachment>`	`getSelectedAttachments()`	Loads up the currently selected attachments.
`final List<Attachment>`	`getAttachmentsFromUris(List<Uri> uris)`	Transforms selected file Uris to a list of Attachments we can upload.
`final List<Attachment>`	`getAttachmentsFromMetaData(List<AttachmentMetaData> metaData)`	Transforms the selected meta data into a list of Attachments we can upload.
`final Unit`	`dismissAttachments()`	Triggered when we dismiss the attachments picker.

Methods inherited from class io.getstream.chat.android.compose.viewmodel.messages.AttachmentsPickerViewModel
addCloseable, addCloseable, addCloseable, getCloseable
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AttachmentsPickerViewModel
```
AttachmentsPickerViewModel(StorageHelperWrapper storageHelper, StateFlow<ChannelState> channelState, SavedStateHandle savedStateHandle)
```
    Parameters:
    
    storageHelper - Wrapper around storage utilities for loading media and files.
    
    channelState - The state of the channel where attachments are being picked.
    
    savedStateHandle - Handle for persisting state across process death.
  - AttachmentsPickerViewModel
```
AttachmentsPickerViewModel(StorageHelperWrapper storageHelper, StateFlow<ChannelState> channelState)
```
    Parameters:
    
    storageHelper - Wrapper around storage utilities for loading media and files.
    
    channelState - The state of the channel where attachments are being picked.
- Method Detail
  - getChannel
```
 final Channel getChannel()
```
    The information for the current Channel.
  - getAttachmentsPickerMode
```
 final AttachmentsPickerMode getAttachmentsPickerMode()
```
    Currently selected picker mode. Images, Files or MediaCapture.
  - setAttachmentsPickerMode
```
 final Unit setAttachmentsPickerMode(AttachmentsPickerMode attachmentsPickerMode)
```
  - getImages
```
 final List<AttachmentPickerItemState> getImages()
```
    List of images available, from the system.
  - setImages
```
 final Unit setImages(List<AttachmentPickerItemState> images)
```
    List of images available, from the system.
  - getFiles
```
 final List<AttachmentPickerItemState> getFiles()
```
    List of files available, from the system.
  - setFiles
```
 final Unit setFiles(List<AttachmentPickerItemState> files)
```
    List of files available, from the system.
  - getAttachments
```
 final List<AttachmentPickerItemState> getAttachments()
```
    List of attachments available, from the system.
  - setAttachments
```
 final Unit setAttachments(List<AttachmentPickerItemState> attachments)
```
    List of attachments available, from the system.
  - getPolls
```
 final List<AttachmentPickerItemState> getPolls()
```
    List of polls available, from the system.
  - setPolls
```
 final Unit setPolls(List<AttachmentPickerItemState> polls)
```
    List of polls available, from the system.
  - getHasPickedFiles
```
 final Boolean getHasPickedFiles()
```
  - getHasPickedImages
```
 final Boolean getHasPickedImages()
```
  - getHasPickedAttachments
```
 final Boolean getHasPickedAttachments()
```
  - getIsShowingAttachments
```
 final Boolean getIsShowingAttachments()
```
  - setIsShowingAttachments
```
 final Unit setIsShowingAttachments(Boolean isShowingAttachments)
```
  - loadData
```
@Deprecated(message = This method is no longer used and will be removed in future versions.) final Unit loadData()
```
    Loads all the items based on the current type.
  - changeAttachmentPickerMode
```
 final Unit changeAttachmentPickerMode(AttachmentsPickerMode attachmentsPickerMode, Function0<Boolean> hasPermission)
```
    Changes the currently selected AttachmentsPickerMode and loads the required data. If no permission is granted will not try and load data to avoid crashes.
    
    Parameters:
    
    attachmentsPickerMode - The currently selected picker mode.
    
    hasPermission - Handler to check if there is permission for wanted action.
  - changeAttachmentState
```
 final Unit changeAttachmentState(Boolean showAttachments)
```
    Notifies the ViewModel if we should show attachments or not.
    
    Parameters:
    
    showAttachments - If we need to show attachments or hide them.
  - changeSelectedAttachments
```
 final Unit changeSelectedAttachments(AttachmentPickerItemState attachmentItem)
```
    Triggered when an AttachmentMetaData is selected in the list. Added or removed from the corresponding list, be it files or images, based on attachmentsPickerMode.
    
    Parameters:
    
    attachmentItem - The selected item.
  - getSelectedAttachments
```
 final List<Attachment> getSelectedAttachments()
```
    Loads up the currently selected attachments. It uses the attachmentsPickerMode to know which attachments to use - files or images.
    It maps all files to a list of Attachment objects, based on their type.
  - getAttachmentsFromUris
```
 final List<Attachment> getAttachmentsFromUris(List<Uri> uris)
```
    Transforms selected file Uris to a list of Attachments we can upload.
    
    Parameters:
    
    uris - Selected Uris.
  - getAttachmentsFromMetaData
```
 final List<Attachment> getAttachmentsFromMetaData(List<AttachmentMetaData> metaData)
```
    Transforms the selected meta data into a list of Attachments we can upload.
    
    Parameters:
    
    metaData - List of attachment meta data items.
  - dismissAttachments
```
 final Unit dismissAttachments()
```
    Triggered when we dismiss the attachments picker. We reset the state to show images and clear the items for now, until the user needs them again.

Class AttachmentsPickerViewModel

Field Summary

Constructor Summary

Method Summary

Methods inherited from class io.getstream.chat.android.compose.viewmodel.messages.AttachmentsPickerViewModel

Methods inherited from class java.lang.Object

Constructor Detail

AttachmentsPickerViewModel

AttachmentsPickerViewModel

Method Detail

getChannel

getAttachmentsPickerMode

setAttachmentsPickerMode

getImages

setImages

getFiles

setFiles

getAttachments

setAttachments

getPolls

setPolls

getHasPickedFiles

getHasPickedImages

getHasPickedAttachments

getIsShowingAttachments

setIsShowingAttachments

loadData

changeAttachmentPickerMode

changeAttachmentState

changeSelectedAttachments

getSelectedAttachments

getAttachmentsFromUris

getAttachmentsFromMetaData

dismissAttachments