Question

我的IOS应用程序中有一个tableView列表。我想用tableView搜索我的UISearchController列表。默认情况下，列表将正确显示。

当我激活搜索控制器（单击UISearchController）时，我的现有列表将消失，当我键入相关关键字时，结果将相应显示。

但是当我检查相关搜索结果时，searchController将被停用并返回默认列表。

有什么主意吗？

- (void)viewDidLoad {
    self.searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
    self.searchController.searchResultsUpdater = self;
    self.searchController.delegate = self;

    self.searchController.searchBar.delegate = self;

    self.searchController.searchBar.barTintColor = ThemeLightGrayColor;

    self.searchController.hidesNavigationBarDuringPresentation = NO;

    [self.searchController.searchBar.layer setBorderColor:[UIColor colorWithRed:229.0/255 green:229.0/255 blue:229.0/255 alpha:1].CGColor];
    [self.searchController.searchBar setPlaceholder:@"Search"];
    [self.searchController.searchBar.layer setBorderWidth:0.5];
    [self.searchController.searchBar setKeyboardType:UIKeyboardTypeDefault];
    [[UITextField appearanceWhenContainedInInstancesOfClasses:@[[UISearchBar class]]] setDefaultTextAttributes:@{ NSFontAttributeName: [UIFont fontWithName:@"Bitter" size:14]}];

    [self.searchController.searchBar sizeToFit];


    _searchResultArr=[NSMutableArray array];
    _tableView.tableHeaderView = ({
        UIView *view = [[UIView alloc] init];
        view.frame = CGRectMake(0, DCNaviH, 0, self.searchController.searchBar.frame.size.height + 50);
        _segPromotion = [[UISegmentedControl alloc] initWithItems:@[@"All",@"Near Me",@"Coming Soon"]];
        _segPromotion.selectedSegmentIndex = 0;
        _segPromotion.backgroundColor = ThemeWhiteColor;
        _segPromotion.frame = CGRectMake(10, self.searchController.searchBar.frame.origin.y+5 + self.searchController.searchBar.frame.size.height , ScreenW-20, 30);
        [_segPromotion setTitleTextAttributes:@{NSFontAttributeName :  [UIFont fontWithName:@"Bitter" size:13],NSForegroundColorAttributeName: ThemeDarkBlueColor } forState:UIControlStateNormal];
        [_segPromotion setTitleTextAttributes:@{NSFontAttributeName : [UIFont fontWithName:@"Bitter" size:13],NSForegroundColorAttributeName : ThemeWhiteColor} forState:UIControlStateSelected];
        [_segPromotion addTarget:self action:@selector(SegmentChangeViewValueChanged:) forControlEvents:UIControlEventValueChanged];

        [view addSubview:self.searchController.searchBar];
        [view addSubview:_segPromotion];
        view;
    });
    [self.view addSubview:_tableView];
}


- (void)updateSearchResultsForSearchController:(UISearchController *)searchController
{
    NSString *searchString = searchController.searchBar.text;
    [self searchForText:searchString];
    [self.tableView reloadData];
}



- (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText
{
    [self updateSearchResultsForSearchController:self.searchController];
}

- (void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope
{
    [self updateSearchResultsForSearchController:self.searchController];
}


- (void)searchForText:(NSString *)searchString
{
    [self filterContentForSearchText:searchString
                               scope:[self.searchBar scopeButtonTitles][self.searchBar.selectedScopeButtonIndex]];
}

Answer 1

您要做的是在初始化searchController时添加self.searchController.obscuresBackgroundDuringPresentation = NO;。

这是因为，正如您使用[[UISearchController alloc] initWithSearchResultsController:nil]一样，结果将显示在同一视图控制器中（由于nil参数）。因此，如果将obscuresBackgroundDuringPresentation设置为YES（默认情况下就是这种情况），则结果区域将不可触摸。

无法在UISearchController中选择搜索结果

1 个答案: