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
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.
You can customize the UI for read receipt using the
SBUMessageCellTheme in the
SBUTheme and through the
iconDoneAll property of the
The following table shows a customizable theme property of read receipt.
The color of the read receipt state element.
The following table shows a customizable read receipt 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