Question

我的应用程序可以从主屏幕上的搜索功能中受益。我已经编写了一些中途完成此任务的代码，但是当它在UISearchBar上点击（x）时它找不到结果并且崩溃了。我一直绞尽脑汁想弄清楚它为什么不起作用。

主视图控制器（主屏幕上有＆＃39;搜索＆＃39;栏）：

 ViewController *viewController = [self.storyboard instantiateViewControllerWithIdentifier:@"CenterViewController"];


        [self.navigationController pushViewController:viewController animated:YES];
         [viewController sendSearchRequest:[nameLabel text] sport:[sportLabel text]];

ViewController（使用tableview和UISearchDisplayController查看）

-(void)sendSearchRequest:(NSString *)request sport:(NSString *)sport{
    [self.filteredArray removeAllObjects]; // First clear the filtered array.
    self.searchText = request;

    /*
     * Search the main list for products whose type matches the scope (if
     * selected) and whose name matches searchText; add items that match to the
     * filtered array.
     */
    [self.filteredArray removeAllObjects]; // First clear the filtered array.
    self.searchText = request;

    /*
     * Search the main list for products whose type matches the scope (if
     * selected) and whose name matches searchText; add items that match to the
     * filtered array.
     */
    NSLog(@"Request: %@", request);
    for (Athlete *athlete in self.athletes) {
        NSComparisonResult result = [[athlete name] compare:request options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [request length])];
        if (result == NSOrderedSame) {
            [self.filteredArray addObject:athlete];
        }
    }
    [self.searchDisplayController setActive: YES animated: YES];
    [self.searchDisplayController.searchBar setText:request];



}

Answer 1

原来，它与正确的激活无关。基本上，我有一个我正在过滤的数组，但它在加载视图时被初始化。好吧，既然我把这个视图称为非常圆形，它从未下载过数组。相反，我从主视图控制器下载了数组，并在搜索视图控制器中搜索了该数组。问题解决了。

从另一个ViewController激活UISearchDisplayController

1 个答案: