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我正在將iOS應用程序遷移到Swift 3,並且我的ChatViewController上一直存在此錯誤消息。Swift - 未實現所需的方法: - [JSQMessagesViewController collectionView
2017-02-21 16:40:40.599 Jaco[52613:2864859] *** Assertion failure in -[Jaco.ChatViewController collectionView:messageDataForItemAtIndexPath:], /Users/Royal/dev/jab/ios/Pods/JSQMessagesViewController/JSQMessagesViewController/Controllers/JSQMessagesViewController.m:491
2017-02-21 16:40:40.609 Jaco[52613:2864859] *** Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'ERROR: required method not implemented: -[JSQMessagesViewController collectionView:messageDataForItemAtIndexPath:]'
這裏是我的代碼
// DATA SOURCE 1
func collectionView(collectionView: JSQMessagesCollectionView!,
messageDataForItemAtIndexPath indexPath: NSIndexPath!) -> JSQMessageData! {
let data = self.messages[indexPath.item]
return data
}
// DATA SOURCE 2
override func collectionView(_ collectionView: UICollectionView,
numberOfItemsInSection section: Int) -> Int {
return messages.count
}
部分我嘗試添加「覆蓋」,但錯誤信息仍然存在。
任何想法如何解決這個問題?謝謝你的幫助!