显示的搜索视图始终位于tableview上方

时间:2015-04-23 11:18:18

标签: ios objective-c uitableview

我拿了一个UITableViewController并尝试在其中添加UISearchDisplayController。我从互联网上读了很多代码,但不知道我有什么问题。

我的问题是为什么UISearchDisplayController不要总是坚持在UITableView之上。

这是我的代码

SearchView_controller.h

@interface SearchView_controller : UITableViewController<UISearchBarDelegate,UISearchDisplayDelegate>
@end


SearchView_controller.m

@interface SearchView_controller ()
{
    UISearchDisplayController *searchController;
}
@end

@implementation SearchView_controller

- (void)viewDidLoad {
    [super viewDidLoad];

    self.title=@"Test";

    UISearchBar *searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, self.tableView.frame.origin.y, self.tableView.frame.size.width, 44)];
    [searchBar sizeToFit];
    [searchBar setDelegate:self];

    searchController = [[UISearchDisplayController alloc] initWithSearchBar:searchBar
                                                                contentsController:self];
    [searchController setSearchResultsDataSource:self];
    [searchController setSearchResultsDelegate:self];
    [searchController setDelegate:self];

    [self.tableView setTableHeaderView:searchController.searchBar];

}

-(void) scrollViewDidScroll:(UIScrollView *)scrollView {
    UISearchBar *searchBar = searchController.searchBar;
    CGRect rect = searchBar.frame;
    rect.origin.y = MAX(0, scrollView.contentOffset.y);
    searchBar.frame = rect;
}

#pragma mark - Table view data source

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
    return 1;
}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    return 30;
}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
    static NSString *CellIdentifier = @"searchview_customecell";
    searchview_customecell *cell = (searchview_customecell *)[tableView dequeueReusableCellWithIdentifier:CellIdentifier];
    cell.lbl_name.text=@"test";
    return cell;
}

searchview_customecell.h


@interface searchview_customecell : UITableViewCell
@property(nonatomic, weak) IBOutlet UILabel *lbl_name;
@end

searchview_customecell.m

@implementation searchview_customecell

- (void)awakeFromNib {
    // Initialization code
}

- (void)setSelected:(BOOL)selected animated:(BOOL)animated {
    [super setSelected:selected animated:animated];

    // Configure the view for the selected state
}

@end

1 个答案:

答案 0 :(得分:2)

最好处理UIViewController而不是UITableviewController处理此类内容。

UITableViewController一样,视图为tableView,因此只要添加searchBar,就会在tableView上添加。{/ p>

此问题有两种可能的解决方案:

  1. 将Tableviewcontroller替换为UIViewController并将搜索栏放在视图的开头(不要将其添加到tableview标题中),然后将其放在tableview中。

  2. 请点击此链接:UISearchDisplayController with UITableViewController