我用 UITableView 和 UISearchDisplayController 创建了一个 UIViewController，问题是 shouldReloadTableForSearchString 没有运行……这是我的代码，你的错误在哪里？
- (void)viewDidLoad {
[super viewDidLoad];
array = [[NSMutableArray alloc] initWithObjects:@"ciao",@"mandi",@"viva",@"blabla", nil];
arrayFiltrato = [[NSMutableArray alloc] initWithObjects:@"ciao",@"mandi",@"viva",@"blabla", nil];
//[self.tableView setContentOffset:CGPointMake(0, 44.f) animated:NO];
[self.tableView reloadData];
[self setSearchBar];
}
- (void) viewWillAppear:(BOOL)animated {
[super viewWillAppear:YES];
[self.navigationController setNavigationBarHidden: NO];
}
- (void) setSearchBar {
self.searchBar = [[UISearchBar alloc] init];
[self.searchBar setAutocapitalizationType:UITextAutocapitalizationTypeNone];
[self.searchBar setPlaceholder:@"Type a search term" ];
[self.searchBar setTintColor:[UIColor blackColor]];
[self.searchBar setDelegate:self];
[self.searchBar sizeToFit];
[self.tableView setTableHeaderView:self.searchBar];
self.searchDisplay = [[UISearchDisplayController alloc] initWithSearchBar:self.searchBar contentsController:self];
[self.searchDisplay setSearchResultsDataSource:self];
[self.searchDisplay setSearchResultsDelegate:self];
[self.searchDisplay setDelegate:self];
}
#pragma mark - Table view data source
- (NSInteger)numberOfSectionsInTableView:(UITableView *)myTableView {
// Return the number of sections.
return 1;
}
- (NSInteger)tableView:(UITableView *)myTableView numberOfRowsInSection:(NSInteger)section {
if (myTableView == self.tableView) {
return array.count;
}
else{
return arrayFiltrato.count;
}
}
- (UITableViewCell *)tableView:(UITableView *)myTableView cellForRowAtIndexPath: (NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"Cell";
UITableViewCell *cell = [self.tableView dequeueReusableCellWithIdentifier:CellIdentifier];
if (cell == nil) {
cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier];
}
if (myTableView == self.tableView) {
cell.textLabel.text = [array objectAtIndex:indexPath.row];
} else {
cell.textLabel.text = [arrayFiltrato objectAtIndex:indexPath.row];
}
return cell;
}
#pragma mark -
#pragma mark Content Filtering
- (void)filterContentForSearchText:(NSString*)searchText scope:(NSString*)scope{
[arrayFiltrato removeAllObjects];
// if ([scope isEqualToString:@"All"] || [product.type isEqualToString:scope]) {
for (NSString *str in array) {
NSLog(@"str: %@ - scope: %@",str,scope);
if ([scope isEqualToString:str]) {
NSComparisonResult result = [str compare:searchText
options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch)
range:NSMakeRange(0, [searchText length])];
if (result == NSOrderedSame) {
[arrayFiltrato addObject:str];
}
}
}
}
#pragma mark -
#pragma mark UIsearchDisplay Delegate Methods
- (BOOL)searchDisplay:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString{
[self filterContentForSearchText:searchString
scope:[[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:[self.searchDisplayController.searchBar selectedScopeButtonIndex]]];
NSLog(@"ok");
return YES;
}
- (BOOL)searchDisplay:(UISearchDisplayController *)controller shouldReloadTableForSearchScope:(NSInteger)searchOption{
NSLog(@"ok");
[self filterContentForSearchText:[self.searchDisplayController.searchBar text]
scope:[[self.searchDisplayController.searchBar scopeButtonTitles] objectAtIndex:searchOption]];
return YES;
}
- (void)searchDisplayDidBeginSearch:(UISearchDisplayController *)controller{
[self.searchDisplayController.searchResultsTableView setDelegate:self];
}
- (void)searchDisplayDidEndSearch:(UISearchDisplayController *)controller{
//[self.tableView setContentOffset:CGPointMake(0, 44.f) animated:YES];
}
#pragma mark -
-(void)searchBar:(id)sender{
[self.searchDisplayController setActive:YES animated:YES];
}