swift - 搜索栏中的错误消息

Question

func updateSearchResultsForSearchController(searchController: UISearchController) {

    self.filteredfarger.removeAll(keepCapacity: false) 

这里我得到了错误

"Immutable value of type '[(String)]' only has mutating members named 'removeAll'"

    let searchPredicate = NSPredicate(format: "SELF CONTAINS[c] %@", searchController.searchBar.text!)
    let array = (self.TitleList as NSArray).filteredArrayUsingPredicate(searchPredicate)
    self.filteredfarger = array as! [String] 

这里我得到错误:

"Cannot assign 'filteredfarger' in 'self'

 self.tableView.reloadData()
}

非常感谢您的帮助

Answer 1

看来filteredfarger是不可变的。您是使用“let”还是“var”定义的？

可以在这里找到关于 searchBar 的优秀教程: http://www.ioscreator.com/tutorials/add-search-table-view-tutorial-ios8-swift