当我第二次点击时,UISearchBar消失了

时间:2014-02-09 19:08:44

标签: ios objective-c ios7 uisearchbar uisearchdisplaycontroller

我有UIViewController的应用程序,它包含UISegmentView,UISearchDisplayController和UITableView,如图:

enter image description here

当我点击搜索栏时,一切都很好。出现键盘,我可以进行搜索活动。但是在我第二次点击搜索栏后,它消失了 - 在第二张图片上:

enter image description here

当我添加:

- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar {
self.searchDisplayController.searchResultsTableView.frame = CGRectMake(0, 20,     self.tableView.frame.size.width, self.tableView.frame.size.height);
}

我可以在searchResultsTableView:

下看到搜索栏

enter image description here

有人能帮帮我吗?谢谢!

1 个答案:

答案 0 :(得分:0)

好的,我终于有了解决方案,但同时我知道这不是最好的解决方案。

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
    CGRect newFrame = [self.view.superview convertRect:self.searchDisplayController.searchResultsTableView.superview.superview.frame toView:nil];
    UIWindow *window = [UIApplication sharedApplication].keyWindow;

    self.searchDisplayController.searchResultsTableView.superview.superview.frame = CGRectMake(0, -40, self.tableView.frame.size.width, window.bounds.size.height - newFrame.origin.y);
    return YES;
}

- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar {
    CGRect newFrame = [self.view.superview convertRect:self.searchDisplayController.searchResultsTableView.superview.superview.frame toView:nil];
    UIWindow *window = [UIApplication sharedApplication].keyWindow;

    self.searchDisplayController.searchResultsTableView.superview.superview.frame = CGRectMake(0, 4, self.tableView.frame.size.width, window.bounds.size.height - newFrame.origin.y);

    return YES;
}

最后是内容大小:

- (void)searchDisplayController:(UISearchDisplayController *)controller didHideSearchResultsTableView:(UITableView *)tableView {
    [[NSNotificationCenter defaultCenter] removeObserver:self name:UIKeyboardWillHideNotification object:nil];
}



- (void)searchDisplayController:(UISearchDisplayController *)controller willShowSearchResultsTableView:(UITableView *)tableView {
    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(keyboardWillHide) name:UIKeyboardWillHideNotification object:nil];
}

- (void) keyboardWillHide {
    UITableView *tableView = [[self searchDisplayController] searchResultsTableView];

    [tableView setContentInset:UIEdgeInsetsZero];
    [tableView setScrollIndicatorInsets:UIEdgeInsetsZero];
}