UISearchDisplayController使用

用UISearchBar初始化,设置代理

UISearchBar *searchBar = [[UISearchBar alloc] init];
    self.tableView.tableHeaderView = searchBar;
    [searchBar sizeToFit];
    searchBar.delegate = self;
    [searchBar release];

    searchDisplay = [[UISearchDisplayController alloc] initWithSearchBar:searchBar contentsController:self];
    searchDisplay.delegate = self;
    searchDisplay.searchResultsDataSource = self;
    searchDisplay.searchResultsDelegate = self;

检测当前table view,分情况选择需要显示的数据

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
    if ([tableView isEqual:self.searchDisplayController.searchResultsTableView]) {
        return self.searchGroupList.count;
    }
    return [self.groupList count];
}

cellForRowAtIndexPath同样选择

实现

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString;

用于重新填充搜索出的数据