使用UISearch在搜索结果下方不必要的空白区域

Question

我的应用中有标签，用户可以在其中执行搜索。在用户输入关键字和tableView填充结果后，会有很多空行。我已经＆＃34;清洁＆＃34;不必要的行（把它变成[UIColor clearColor]），但现在我有一个空的空间，问题没有解决。我想要的是，只是一个填充了搜索结果的表，没有空格，没有行（如果有空格，当桌面上只有几个结果时，它完全没问题。但是我得到了这个＆＃34;空的＆＃34 ;当有很多结果的时候，我必须向下滚动才能看到所有结果。在这种情况下，我不希望在最后一个单元格之后出现任何内容。有一个代码，我用来创建UISearch和tableView，它很简单：

对于UITableView：

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
    // Return the number of rows in the section.
    NSLog(@"number of rows is ? %d", self.filteredArray.count);
    return [self.filteredArray count];
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath
{
    static NSString *CellIdentifier = @"Cell";
    UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    if (cell == nil) {
        cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];
    }

    NSString *_cellText = self.filteredArray[indexPath.row];
    cell.textLabel.text = _cellText;

    return cell;
}

对于UISearch：

- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope
{
    self.filteredArray = [NSMutableArray new];
    self.searchResults = [NSArray new];
    NSPredicate *resultPredicate = [NSPredicate predicateWithFormat:@"name contains[c] %@", searchText];
    self.searchResults = [self._placeOfObjects filteredArrayUsingPredicate:resultPredicate];
    NSLog(@" metod called ");
    NSLog(@"searchResults is %@", self.searchResults);
    //    if (self.searchResults){
    //    _filteredName = ((placeHolder *)(self.searchResults)).name;
    //    NSLog(@"HOLY Grale %@", _filteredName);
    //    }
    //    NSLog(@" What user search is %@", ((placeHolder *)(self.searchResults.name));
    if (self.searchResults.count > 0){
        // _filteredName = ((placeHolder *)(self.searchResults[0])).name;
        for (int i=0; i<[self.searchResults count]; i++) {
            NSLog(@" counto %d", [self.searchResults count]);
            _filteredName = ((PlaceHolder *)(self.searchResults[i])).name;
            [self.filteredArray addObject:_filteredName];
        }
    }
    else {
        NSLog(@"array is empty");
    }
    NSLog(@"HOLY WATER %@", _filteredName );
    NSLog(@" %@ holy array", self.filteredArray);
}

-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
    // Tells the table data source to reload when text changes
    [self filterContentForSearchText:searchString scope:
     [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]];
    // Return YES to cause the search result table view to be reloaded.
    return YES;
}

-(BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption {
    // Tells the table data source to reload when scope bar selection changes
    [self filterContentForSearchText:self.searchDisplayController.searchBar.text scope:
     [[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:searchOption]];
    // Return YES to cause the search result table view to be reloaded.
    return YES;
}

- (void)searchDisplayController:(UISearchDisplayController *)controller willShowSearchResultsTableView:(UITableView *)tableView;
{
    UIView *footer = [[UIView alloc] initWithFrame:CGRectMake(0, 0, tableView.frame.size.width, 1)];
    footer.backgroundColor = [UIColor clearColor];
    [tableView setTableFooterView:footer];
}

任何建议都将不胜感激，谢谢！