SearchBar:动态变化结果

Question

根据我点击的字母，尝试制作一个具有不断更新表视图的搜索栏。就像这里：https://koenig-media.raywenderlich.com/uploads/2019/08/candy-typing.gif

extension EmotionsContoller: UISearchBarDelegate {

func searchBarSearchButtonClicked(_ searchBar: UISearchBar) {



    if searchBar.text!.count > 1 {
    let request: NSFetchRequest<Array> = Array.fetchRequest()

        let predicate = NSPredicate(format: "name CONTAINS[cd] %@", searchBar.text!)

    request.sortDescriptors = [NSSortDescriptor(key: "name", ascending: true)]

    loadArray(with: request, predicate: predicate)
    }
    }

func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
    if searchBar.text?.count == 0 {
        loadArray()

        DispatchQueue.main.async {
          searchBar.resignFirstResponder()
        }

    }
}

我错过了什么？

Answer 1

您需要重新加载tableView的数据。

 func searchBar(_ searchBar: UISearchBar, textDidChange searchText: String) {
    if searchBar.text?.count == 0 {
        loadArray()

        DispatchQueue.main.async {
          searchBar.resignFirstResponder()
        } else if searchBar.text!.count > 1 {
        let request: NSFetchRequest<Array> = Array.fetchRequest()

        let predicate = NSPredicate(format: "name CONTAINS[cd] %@", searchBar.text!)

         request.sortDescriptors = [NSSortDescriptor(key: "name", ascending: true)]

         loadArray(with: request, predicate: predicate)
         tableView.reloadData()
    }

    }