UIsearchViewControl

创建UItableViewVC

UISearchController alloc init ResultsController 一个tableVC，搜索到的数据源呈现在tableVC

继承UITableViewController .h文件

@interface TestTableViewController : UITableViewController
@end

继承UITableViewController .m文件

@interface TestTableViewController ()<UISearchResultsUpdating, UISearchBarDelegate>
@property (nonatomic, strong) UISearchController *searchController;
@property (nonatomic, strong) NSMutableArray *searchResults; // Filtered search results
@property (nonatomic, strong) NSArray *products;
@end
@implementation TestTableViewController
- (void)viewDidLoad{
    [super viewDidLoad];
    self.title = @"全部品牌";
    self.products = [Product allProducts];
    TestResultTableViewController *result = [[TestResultTableViewController alloc] init];
    result.view.frame = CGRectMake(0, 0, [UIScreen mainScreen].bounds.size.width, [UIScreen mainScreen].bounds.size.height);
    self.searchController = [[UISearchController alloc] initWithSearchResultsController:result];
    self.searchController.searchResultsUpdater = self;
    self.searchController.searchBar.placeholder = @"搜索品牌";
    self.searchController.searchBar.frame = CGRectMake(self.searchController.searchBar.frame.origin.x, self.searchController.searchBar.frame.origin.y, self.searchController.searchBar.frame.size.width, 44.0);
    self.tableView.tableHeaderView = self.searchController.searchBar;
    self.definesPresentationContext = YES;
}

UISearchResultsUpdating UISearchBarDelegate 的代理

#pragma mark - UISearchResultsUpdating
- (void)updateSearchResultsForSearchController:(UISearchController *)searchController{
    NSString *searchString = [self.searchController.searchBar text];
    NSString *scope = nil;
    NSInteger selectedScopeButtonIndex = [self.searchController.searchBar selectedScopeButtonIndex];
    if (selectedScopeButtonIndex > 0) {
        scope = [[Product deviceTypeNames] objectAtIndex:(selectedScopeButtonIndex - 1)];
    }
    [self updateFilteredContentForProductName:searchString type:scope];
    if (self.searchController.searchResultsController) {
        TestResultTableViewController *vc = (TestResultTableViewController *)self.searchController.searchResultsController;
        vc.searchResults = self.searchResults;
        [vc.tableView reloadData];
    }
}
#pragma mark - Content Filtering
- (void)updateFilteredContentForProductName:(NSString *)productName type:(NSString *)typeName{
    if ((productName == nil) || [productName length] == 0) {
        if (typeName == nil) {
            self.searchResults = [self.products mutableCopy];
        } else {
            NSMutableArray *searchResults = [[NSMutableArray alloc] init];
            for (Product *product in self.products) {
                if ([product.type isEqualToString:typeName]) {
                    [searchResults addObject:product];
                }
            }
            self.searchResults = searchResults;
        }
        return;
    }
    [self.searchResults removeAllObjects];
    for (Product *product in self.products) {
        if ((typeName == nil) || [product.type isEqualToString:typeName]) {
            NSUInteger searchOptions = NSCaseInsensitiveSearch | NSDiacriticInsensitiveSearch;
            NSRange productNameRange = NSMakeRange(0, product.name.length);
            NSRange foundRange = [product.name rangeOfString:productName options:searchOptions range:productNameRange];
            if (foundRange.length > 0) {
                [self.searchResults addObject:product];
            }
        }
    }
}
#pragma mark - UISearchBarDelegate
- (void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope{
    [self updateSearchResultsForSearchController:self.searchController];
}

代码