Iphone UISearchDisplayController searchResultsTableView未隐藏在iOS7中

我正在使用UISearchDisplayController在tableview中显示搜索结果。如果搜索结果为空，则隐藏UISearchDisplaycontroller的searchResultTableView。在iOS 6.0之前都可以正常工作，但在iOS 7中就不行了。 我正在努力寻找一些解决办法，但不幸的是，我还没有找到。 我使用以下语句隐藏SearchResultableView

self.searchDisplayController.searchResultsTableView.hidden=是

以下是iOS 6和iOS 7中的屏幕截图

编辑：

我正在使用以下UISearchDisplayController委托方法

-(BOOL)searchDisplayController:(UISearchDisplayController *)controller
shouldReloadTableForSearchString:(NSString *)searchString
{
 [self filterContentForSearchText:searchString
                           scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                                  objectAtIndex:[self.searchDisplayController.searchBar
                                                 selectedScopeButtonIndex]]];
return YES;
}


-(BOOL)searchDisplayController:(UISearchDisplayController *)controller
 shouldReloadTableForSearchScope:(NSInteger)searchOption 
  {
[self filterContentForSearchText:[self.searchDisplayController.searchBar text]
                           scope:[[self.searchDisplayController.searchBar scopeButtonTitles]
                                  objectAtIndex:searchOption]];
return YES; 
}


-(void)filterContentForSearchText:(NSString *)searchText scope:(NSString *)scope{
[Appdelegate.arrFilteredDrugSummary removeAllObjects];
[Appdelegate.arrFilteredDrugID removeAllObjects];

for (DrugDetails *drug in Appdelegate.arrDrugSummary)
{
    NSPredicate *predicate = [NSPredicate predicateWithFormat:
                              @"(SELF BEGINSWITH [cd] %@)", searchText];
    if(![drug.tradeName isEqual:[NSNull null]])
    {
        [drug.tradeName compare:searchText options:NSCaseInsensitiveSearch];
        BOOL resultTradeName; 
        if((resultTradeName = [predicate evaluateWithObject:drug.tradeName]))
        {
            if (![Appdelegate.arrFilteredDrugID containsObject:drug.ID])
            {
                [Appdelegate.arrFilteredDrugSummary addObject:drug];
                [Appdelegate.arrFilteredDrugID addObject:drug.ID];
            }
        }
    }
}
if (![Appdelegate.arrFilteredDrugSummary count])
{
    [self.btnAddNewDrug setHidden:NO];
    self.tblview.hidden=YES;
    self.searchDisplayController.searchResultsTableView.hidden = YES;
}
else
{
    [self.btnAddNewDrug setHidden:YES];
    self.tblview.hidden=NO;
    self.searchDisplayController.searchResultsTableView.hidden = NO;
}
[self.searchDisplayController.searchResultsTableView reloadData];
}

---

我也面临同样的问题。你可以通过这种方式克服它

- (void)searchDisplayController:(UISearchDisplayController *)controller didShowSearchResultsTableView:(UITableView *)tableView
{
    self.searchDisplayController.searchResultsTableView.hidden = YES;
}

如果发现任何结果，则使用此代码关闭searchDisplayController

if (yourArray.count != 0) 
{
     // reload your table here
     [self.searchDisplayController setActive:NO animated:YES];
     self.searchDisplayController.searchResultsTableView.hidden = YES;
}

或

如果搜索结果找到，您可以使用此代码隐藏searchDisplayController

[self searchBarCancelButtonClicked:searchBar];

它将调用UISearchBar searchBarCancelButtonClicked委托和

- (void)searchBarCancelButtonClicked:(UISearchBar *)_searchBar {

    if (yourArray.count == 0) {
        self.searchDisplayController.searchResultsTableView.hidden = YES;
    }
    else
    {
        self.searchDisplayController.searchResultsTableView.hidden = NO;
    }
}

---

我希望它能帮助你

您知道搜索栏是否有焦点

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    if ([_searchBar isFirstResponder]) {
              return [_filteredData count];
    } else {

        id <NSFetchedResultsSectionInfo> sectionInfo = [[self.fetchedResultsController sections] objectAtIndex:section];
        return [sectionInfo numberOfObjects];

    }
}

设置过滤器参数

-(void)filter:(NSString*)text
{

    _filteredData = [[NSMutableArray alloc] init];


    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];


    NSEntityDescription *entity = [NSEntityDescription
                                   entityForName:@"Entidad" inManagedObjectContext:self.managedObjectContext];
    [fetchRequest setEntity:entity];


    NSSortDescriptor* sortDescriptor = [[NSSortDescriptor alloc]
                                        initWithKey:@"titulo" ascending:YES];
    NSArray* sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil];
    [fetchRequest setSortDescriptors:sortDescriptors];


    if(text.length > 0)
    {

        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(titulo CONTAINS[c] %@)", text];
        [fetchRequest setPredicate:predicate];
    }

    NSError *error;


    NSArray* loadedEntities = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error];
    _filteredData = [[NSMutableArray alloc] initWithArray:loadedEntities];

    NSLog(@"%@", _filteredData);

    [self.tableView reloadData];
}

-(void)searchBar:(UISearchBar*)searchBar textDidChange:(NSString*)text
{
    [self filter:text];
}

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{

    [self filter:@""];

    [_searchBar resignFirstResponder];
    [_searchBar setText:@""];
    [_tableView reloadData];
}

- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{

    [_searchBar setShowsCancelButton:YES animated:YES];
}

-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
    [_searchBar setShowsCancelButton:NO animated:YES];
}

---

我希望能为您服务，我的英语非常有限

您把那行代码称为哪里？如果您还没有将其移动到

searchDisplayController:didShowSearchResultsTableView:

，您可能需要尝试将其移动到

searchDisplayController:didShowSearchResultsTableView:

。顺便说一句，我在iOS 7上的UISearchDisplayController遇到了太多问题，我只是将其完全剥离出来，编写了完成此项工作所需的自定义代码，并在没有它的情况下与UISearchBar交互。@smileyborg:我编辑了上面的问题，并在实现代码的地方添加了代码，用于隐藏SearchResultableView。请你告诉我哪里出了问题。@smileyborg:我按照你的建议添加了searchDisplayController:didShowSearchResultsTableView:方法。它一个问题解决了，但又遇到了另一个问题。我没有收到iOS 7中“看不见？问我们！”按钮的点击事件。感谢Chandan的回复。。！它在iOS7上工作正常吗。实际上我无法解决这个问题，所以我删除了UISearchDisplayController并实现了UISearchBar委托方法来完成我的任务。我一定会按照你的建议尝试一下。很抱歉我回复晚了，但我现在面临这个问题。是的，Mahesh，它在这里工作得很好。如果您使用的是UISearch栏，那么您可以强制完全调用cancel searchBarCancelButtonClicked degegate并执行您想要的任何操作。

-(void)filter:(NSString*)text
{

    _filteredData = [[NSMutableArray alloc] init];


    NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];


    NSEntityDescription *entity = [NSEntityDescription
                                   entityForName:@"Entidad" inManagedObjectContext:self.managedObjectContext];
    [fetchRequest setEntity:entity];


    NSSortDescriptor* sortDescriptor = [[NSSortDescriptor alloc]
                                        initWithKey:@"titulo" ascending:YES];
    NSArray* sortDescriptors = [[NSArray alloc] initWithObjects:sortDescriptor, nil];
    [fetchRequest setSortDescriptors:sortDescriptors];


    if(text.length > 0)
    {

        NSPredicate *predicate = [NSPredicate predicateWithFormat:@"(titulo CONTAINS[c] %@)", text];
        [fetchRequest setPredicate:predicate];
    }

    NSError *error;


    NSArray* loadedEntities = [self.managedObjectContext executeFetchRequest:fetchRequest error:&error];
    _filteredData = [[NSMutableArray alloc] initWithArray:loadedEntities];

    NSLog(@"%@", _filteredData);

    [self.tableView reloadData];
}

-(void)searchBar:(UISearchBar*)searchBar textDidChange:(NSString*)text
{
    [self filter:text];
}

-(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{

    [self filter:@""];

    [_searchBar resignFirstResponder];
    [_searchBar setText:@""];
    [_tableView reloadData];
}

- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar
{

    [_searchBar setShowsCancelButton:YES animated:YES];
}

-(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar
{
    [_searchBar setShowsCancelButton:NO animated:YES];
}