mirror of
https://github.com/MessageKit/MessageKit.git
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Steven Deutsch
59 lines
2.0 KiB
Markdown
59 lines
2.0 KiB
Markdown
# MessageKit Frequently Asked Questions
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**Why doesn't the `MessageInputBar` appear in my controller?**
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If you're using the `MessagesViewController` as a child view controller then
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you have to call `becomeFirstResponder()` on your view controller. The
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reason is because the `MessageInputBar` is the `inputAccessoryView` of the
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`MessagesViewController`. This means that it is not in the view hierarchy of
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`MessagesViewController`'s root view.
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```Swift
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class ParentVC: UIViewController {
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override func viewDidLoad() {
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super.viewDidLoad()
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let childVC = MessagesViewController()
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addChildViewController(childVC)
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self.view.addSubview(childVC.view)
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childVC.didMove(toParentViewController:self)
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self.becomeFirstResponder()
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}
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}
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```
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**How can I remove the `AvatarView` from the cell?**
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If you return `CGSize.zero` from the `MessagesLayoutDelegate` method
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`avatarSize(for:MessageType,at:IndexPath,in:MessagesCollectionView)`, the `AvatarView`
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will not be visible for that cell.
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```Swift
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func avatarSize(for: MessageType, at: IndexPath, in: MessagesCollectionView) -> CGSize {
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return .zero
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}
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```
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**How can I dismiss the keyboard?**
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The `MessagesViewController` needs to resign the first responder.
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```Swift
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let controller = MessagesViewController()
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controller.resignFirstResponder()
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```
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**How can I get a reference to the `MessageType` in the `MessageCellDelegate` methods?**
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You can use `UICollectionView`'s method `indexPath(for: UICollectionViewCell)` to get the
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`IndexPath` for the `MessageCollectionViewCell` argument. Using this `IndexPath`, you can
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then get the `MessageType` for this cell through the `MessagesDataSource` method
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`messageForItem(at:IndexPath,in:MessagesCollectionView)`.
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```Swift
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func didTapMessage(in cell: MessageCollectionViewCell) {
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guard let indexPath = messagesCollectionView.indexPath(for: cell) else { return }
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guard let messagesDataSource = messagesCollectionView.messagesDataSource else { return }
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let message = messagesDataSource.messageForItem(at: indexPath, in: messagesCollectionView)
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}
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```
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