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Read receipt

Read receipt is a feature that allows users to know whether their messages have been read by other users in the channel. The UI for read receipt appears in each message cell of the SBUChannelViewController class. If a user’s message has been read by all the other users in the channel, a colored double-tick icon will appear above the message’s timestamp. Read receipt is only visible to the sender of the message.

The read status of a message is displayed through the stateImageView of SBUMessageStateView, which is either in the SBUUserMessageCell class or the SBUFileMessageCell class depending on the type of the message.

Note : In order to use this feature, you must first create a channel and enable the chat service. To learn how to allow users to chat in a channel, refer to Chat in a channel.

Customize the UI for read receipt

You can customize the UI for read receipt using the SBUMessageCellTheme in the SBUTheme and through the iconDoneAll property of the SBUIconSet.

SBUMessageCellTheme

The following table shows a customizable theme property of read receipt.

CategoryPropertyDescription

Message state

readreceiptStateColor

The color of the read receipt state element.

SBUIconSet

The following table shows a customizable read receipt icon.

IconImageDescription

IconDoneAll

Done All icon

An icon used to indicate that a message has been read by all members of a channel.

Note : The same double-tick icon is used for both read receipt and delivery receipt. The only difference is the color of the icon. Default icon colors used for read receipt are secondary_300 for Light theme, and secondary_200 for Dark theme.