To protect members from unsafe content and harmful language, Sendbird provides a variety of moderation methods. These methods include the ability to mute members, ban members, freeze channels and assign channel operators.

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Mute is a feature that allows operators to mute certain members in a channel. Muted members can stay in the channel and are allowed to view the messages, but they can’t send any messages until the operators unmute them. In order to use this feature, a channel must have at least one operator. Sendbird UIKit for iOS provides you with customizable UI elements of the mute feature. These elements are found in the group channel view, channel member list view, muted member list view and moderation view.

The SBUGroupChannelViewController class allows you to compose a group channel view. Muted members can see that they are muted in the channel when they try to type a message in the input component of the SBUGroupChannelViewController class.

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You can customize the UI for mute shown in the input component through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen. You need to modify the stringSet values in advance if you want to make changes to the screen.

The SBUMemberListViewController class allows you to retrieve a list of members in a specific group channel. An operator can mute or unmute members in the channel member list view. Those members will also appear in the muted member list view. The UI elements related to this feature are customizable.

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You can customize the UI for mute and unmute in the member list view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen. You need to modify the stringSet values in advance if you want to make changes to the screen.

You can also customize the UI for mute using the SBUUserCellTheme in the SBUUserCell class. The following table shows customizable theme properties in the SBUTheme.

The following table shows a customizable mute icon.

The SBUModerationsViewController class allows you to compose a moderation view where channels and members can be managed. A list of muted members can also be found in this view. For further information, refer to the Moderate channels and members page.

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You can customize the UI for mute in the moderation view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen.

The following table shows a customizable mute icon.

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Ban is a feature that allows operators to kick certain members out of the channel and prevent them from entering. Banned members expelled from a channel aren't allowed to enter the channel again until the operator unbans them. In order to use this feature, a channel must have at least one operator. Sendbird UIKit for iOS provides you with customizable UI elements of the ban feature. These elements are found in the channel member list view, banned member list view and moderation view.

The SBUMemberListViewController class allows you to retrieve a list of members in a specific group channel. An operator can ban members in the channel member list view. The banned members will be removed from the channel member list and moved to the banned member list. If operators wish to unban members, they can do so in the banned member list view. The UI elements related to this feature are customizable.

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You can customize the UI for ban and unban in the member list view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen. The SBUStringSet is a set of strings used to compose the screen.

The SBUModerationsViewController class allows you to compose a moderation view where channels and members can be managed. A list of banned members can be found in this view. For further information, refer to the Moderate channels and members page.

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You can customize the UI for ban in the moderation view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen.

The following table shows a customizable ban icon.

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Channel operator is a feature that allows you to assign an operator for a channel. The operator is authorized to ban and mute members as well as freeze channels. They play an important role in moderating members of a group channel with abnormal activities. Sendbird UIKit for iOS provides you with customizable UI elements of the channel operator feature. These elements are found in the channel member list view, operator list view and moderation view.

The SBUMemberListViewController class allows you to retrieve a list of members in a specific group channel. You can assign or unassign a member to be an operator in the channel member list view. When a member is assigned to be an operator, the operator label will appear next to the member’s name on the channel member list. They'll also be added to the operator list. The UI elements related to this feature are customizable.

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You can customize the operator UI in the member list view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen.

The SBUModerationsViewController class allows you to compose a moderation view where channels and members can be managed. A list of channel operators can be found in this view. For further information, refer to the Moderate channels and members page.

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You can customize the operator UI in the moderation view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen.

The following table shows a customizable channel operator icon.

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Freeze is a feature that pauses channels and only allows operators to talk within them. When a channel is in a frozen state, only channel operators can send a message while all chat functions are temporarily turned off for the rest of the members who are not operators. Sendbird UIKit for iOS provides you with customizable UI elements of the freeze feature. These elements are found in the group channel view, channel list view, and moderation view.

The SBUGroupChannelViewController class allows you to compose a group channel view. Frozen channels have a state banner in the view that indicates that the channels are frozen.

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You can customize the UI for freeze shown in the state banner using SBUChannelTheme in the SBUTheme class. The state banner, which indicates that a channel is frozen, can be customized through the SBUChannelTheme. The following table shows its customizable theme properties.

You can customize the UI for freeze in the group channel view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen.

The SBUGroupChannelListViewController class allows you to compose a channel list view. members can see which channels are in a frozen state in the list component of SBUGroupChannelListViewController. The UI elements related to this feature are customizable.

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You can customize the UI for freeze in the channel list view using SBUChannelCellTheme in the SBUTheme class. The following table shows customizable theme properties in the SBUChannelCellTheme.

The SBUIconSet contains the icons that are used to compose the screen.

The SBUModerationsViewController class allows you to compose a moderation view where channels and members can be managed. An option to freeze or unfreeze a channel can be found in this view. For further information, refer to the Moderate channels and members page under Group channel.

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You can customize the UI for freeze in the moderation view through SBUStringSet. The SBUStringSet is a set of strings used to compose the screen.

The following table shows a customizable freeze icon.