2

我需要使用搜索栏，但我使用以下代码：

self.searchBar = [UISearchBar new];
_searchBar.frame = CGRectMake(0, 0, 200, 44);
_searchBar.searchBarStyle = UISearchBarStyleMinimal;
_searchBar.placeholder = @"Search stores";
_searchBar.delegate = self;

self.searchController = [[UISearchDisplayController alloc] initWithSearchBar:_searchBar contentsController:self];
_searchController.searchResultsDataSource = self;
_searchController.searchResultsDelegate = self;
_searchController.delegate = self;

self.definesPresentationContext = YES;
self.edgesForExtendedLayout = UIRectEdgeNone;

结果是这样的……我丢失了汉堡菜单按钮，无法更改搜索栏的宽度。我也有一个奇怪的差距，它似乎和我的导航栏一样大。我怎样才能找回汉堡菜单按钮并修复奇怪的差距？

在此处输入图像描述 在此处输入图像描述

4

1 回答 1

3

将以下代码放入 ViewDidLoad。它适用于 iOS 7+

 if(SYSTEM_VERSION_GREATER_THAN(@"6.1")) {
       self.edgesForExtendedLayout = UIRectEdgeNone;
  }

已编辑

 - (void)setActive:(BOOL)visible animated:(BOOL)animated
{
    [super setActive:visible animated:animated];

    [self.searchContentsController.navigationController setNavigationBarHidden: NO animated: NO];

    CGRect frame = self.searchResultsTableView.frame;
    frame.origin.y = CGRectGetHeight(self.searchContentsController.navigationController.navigationBar.frame);

    frame.size.height = CGRectGetHeight(frame) - CGRectGetMinY(frame);

    self.searchResultsTableView.frame = frame;

    frame = self.searchBar.frame;
    self.searchBar.frame = frame;

    [self.searchContentsController.view insertSubview:self.searchBar aboveSubview:self.searchResultsTableView];

}

再尝试实施此解决方案。

- (void)searchDisplayControllerWillBeginSearch:(UISearchDisplayController *)controller {
    self.navigationController.navigationBar.translucent = YES;
}

- (void)searchDisplayControllerDidEndSearch:(UISearchDisplayController *)controller {
    self.navigationController.navigationBar.translucent = NO;
}

注意：UISearchDisplayController 在 iOS 8 中已弃用。Apple 文档

在 iOS8 中使用以下代码支持

searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
searchController.searchResultsUpdater = self;
searchController.dimsBackgroundDuringPresentation = NO;
searchController.hidesNavigationBarDuringPresentation = NO;
searchController.searchBar.frame = CGRectMake(self.searchController.searchBar.frame.origin.x, self.searchController.searchBar.frame.origin.y, self.searchController.searchBar.frame.size.width, 44.0);
self.tableView.tableHeaderView = self.searchController.searchBar;

您也可以从这里下载示例代码。

于 2015-05-28T14:25:07.287 回答