FAttachmentPicker Class Reference

Supplies the message composer with a way to pick a file to attach. More...

#include <AttachmentPicker.h>

Public Types
using	FOnPicked = TFunction<void(const TOptional<FPickedAttachment>&)>
using	FProvider = TFunction<void(FOnPicked)>
	Shows a picker and reports back what the user chose.

Static Public Member Functions
static void	SetProvider (FProvider)
	Register the app's picker. Replaces any previously registered one.
static void	ClearProvider ()
static bool	HasProvider ()
static void	Pick (FOnPicked)
	Ask the registered provider for a file. Does nothing if none is registered.

Detailed Description

Supplies the message composer with a way to pick a file to attach.

The SDK ships no picker of its own. Picking a file is a platform decision – a photo library on a handset, a file dialog on desktop, a baked-in asset in a game – and the plugin stays portable by not making it. Register a provider and the composer grows an attach button; register nothing and it does not.

FAttachmentPicker::SetProvider([](FAttachmentPicker::FOnPicked OnPicked) {
    // Show your picker, then, whenever the user is done:
    FPickedAttachment Picked{TEXT("shot.png"), MoveTemp(Bytes), true};
    OnPicked(Picked);   // or OnPicked({}) if they cancelled
});

Member Typedef Documentation

FOnPicked

using FAttachmentPicker::FOnPicked = TFunction<void(const TOptional<FPickedAttachment>&)>

Called by a provider once the user has chosen a file, or with nothing if they cancelled. Always delivered on the game thread, whichever thread the provider calls it from.

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The documentation for this class was generated from the following files:

• Source/StreamChatUi/Public/Input/AttachmentPicker.h
• Source/StreamChatUi/Private/Input/AttachmentPicker.cpp