ios - 使用 JSQMessageViewController 删除消息崩溃

Question

如何处理JSQMessageController中的删除操作，我已经实现了方法

override func collectionView(collectionView: JSQMessagesCollectionView!, didDeleteMessageAtIndexPath indexPath: NSIndexPath!) {

     self.collectionView?.deleteItemsAtIndexPaths([indexPath])

}

也覆盖方法

override func collectionView(collectionView: UICollectionView, shouldShowMenuForItemAtIndexPath indexPath: NSIndexPath) -> Bool {
   // Do the custom JSQM stuff
    super.collectionView(collectionView, shouldShowMenuForItemAtIndexPath: indexPath)
  // And return true for all message types (we don't want the long press menu disabled for any message types)
  return true
}

override func collectionView(collectionView: UICollectionView, canPerformAction action: Selector, forItemAtIndexPath indexPath: NSIndexPath, withSender sender: AnyObject?) -> Bool {
   super.collectionView(collectionView, canPerformAction: action, forItemAtIndexPath: indexPath, withSender: sender)
   return true
}

override func collectionView(collectionView: UICollectionView, performAction action: Selector, forItemAtIndexPath indexPath: NSIndexPath, withSender sender: AnyObject?) {
  super.collectionView(collectionView, performAction: action, forItemAtIndexPath: indexPath, withSender: sender)
}

但是我在菜单项上崩溃还有什么要做的工作，任何帮助将不胜感激，提前致谢。

Answer 1

reloadData 有很好的解决方法，但问题出在其他方面......

这是说您更改了 dataSource 数组，并且在调用 deleteItemsAtIndexPaths 之前，collectionView 中没有完成更改。