我已经在用 Parse.com 制作的 UITableView 中隐含了完全可用的 UISearchDisplayController。无论如何，当我进行搜索时，我总是只得到以该字母开头的结果。我想显示包含该字母的每个数据。
例如:我在搜索中输入了 Om ，它只搜索了我:Oman and Ombudsman 。我的 UITableView 中还有一个名为 Community 的单元格。您看到这个词也包含 om 但我的搜索没有显示任何内容。它仅显示以这些字母开头的单词。
有人可以帮助我吗？谢谢。
@implementation TableViewController3
@synthesize MainTable;
@synthesize searchBar;
@synthesize searchController;
@synthesize searchResults;
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"showDetaill"]) {
{
DetailViewController3 *sdvc = (DetailViewController3 *)[segue destinationViewController];
if(self.searchDisplayController.active) {
NSIndexPath *indexPath = [[self tableView] indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
object = (PFObject *)[[self searchResults]objectAtIndex:[[[[self searchDisplayController]searchResultsTableView]indexPathForSelectedRow]row]];
sdvc.objc = object;
} else {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
DetailViewController3 *detailViewController = [segue destinationViewController];
detailViewController.objc = object;
}
}
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
self.searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, self.view.frame.size.width, 44)];
self.tableView.tableHeaderView = self.searchBar;
self.searchController = [[UISearchDisplayController alloc] initWithSearchBar:self.searchBar contentsController:self];
self.searchController.searchResultsDataSource = self;
self.searchController.searchResultsDelegate = self;
self.searchController.delegate = self;
self.searchResults = [NSMutableArray array];
self.tableView.backgroundColor = [UIColor colorWithPatternImage:[UIImage imageNamed:@"background.png"]];
[self.navigationController.navigationBar setBarTintColor:[UIColor lightGrayColor]];
-(void)filterResults:(NSString *)searchTerm {
PFQuery *query = [PFQuery queryWithClassName: @"Countries"];
[query whereKey:@"CountryTitle" hasPrefix:searchTerm];
query.limit = 50;
[query findObjectsInBackgroundWithTarget:self selector:@selector(callbackWithResult:error:)];
}
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
[self filterResults:searchString];
return YES;
}
- (void)callbackWithResult:(NSArray *)celebrities error:(NSError *)error
{
if(!error) {
[self.searchResults removeAllObjects];
[self.searchResults addObjectsFromArray:celebrities];
[self.searchDisplayController.searchResultsTableView reloadData];
}
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (tableView == self.tableView) {
return self.objects.count;
} else {
return self.searchResults.count;
}
}
- (void)searchDisplayController:(UISearchDisplayController *)controller didLoadSearchResultsTableView:(UITableView *)tableView
{
tableView.rowHeight = 70.0f;
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
NSString *uniqueIdentifier = @"MainCell";
CustomCell3 *cell = nil;
cell = (CustomCell3 *) [self.tableView dequeueReusableCellWithIdentifier:uniqueIdentifier];
if (!cell) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"MainCell" owner:nil options:nil];
for (id currentObject in topLevelObjects)
{
if([currentObject isKindOfClass:[CustomCell3 class]])
{
cell = (CustomCell3 *)currentObject;
break;
}
}
}
if (tableView == self.tableView) {
cell.MainTitle.text = [object objectForKey:@"CountryTitle"];
cell.DescriptTitle.text = [object objectForKey:@"DescriptTitle"];
[cell.FlagTitle setImageWithURL:[NSURL URLWithString:[object objectForKey:@"ImaURL"]]
placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
cell.backgroundView = [[UIImageView alloc] initWithImage:[ [UIImage imageNamed:@"background.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:5.0] ];
cell.selectedBackgroundView = [[UIImageView alloc] initWithImage:[ [UIImage imageNamed:@"background.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:5.0] ];
}
if(tableView == self.searchDisplayController.searchResultsTableView) {
PFObject *searchedUser = [self.searchResults objectAtIndex:indexPath.row];
NSString *content = [searchedUser objectForKey:@"CountryTitle"];
NSString *desco = [searchedUser objectForKey:@"DescriptTitle"];
cell.DescriptTitle.text = desco;
cell.MainTitle.text = content;
NSString *image = [searchedUser objectForKey:@"ImaURL"];
[cell.FlagTitle setImageWithURL:[NSURL URLWithString:image]
placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
cell.backgroundView = [[UIImageView alloc] initWithImage:[ [UIImage imageNamed:@"background.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:5.0] ];
cell.selectedBackgroundView = [[UIImageView alloc] initWithImage:[ [UIImage imageNamed:@"background.png"] stretchableImageWithLeftCapWidth:0.0 topCapHeight:5.0] ];
}
return cell;
}
@end
最佳答案
使用 - (void)whereKey:(NSString *)key containsString:(NSString *)substring 而不是 - (void)whereKey:(NSString *)key hasPrefix:(NSString * )前缀
-(void)filterResults:(NSString *)searchTerm {
PFQuery *query = [PFQuery queryWithClassName: @"Countries"];
[query whereKey:@"CountryTitle" containsString:searchTerm];
query.limit = 50;
[query findObjectsInBackgroundWithTarget:self selector:@selector(callbackWithResult:error:)];
}
如果您使用hasPrefix:，那么搜索结果将以您的搜索字符串开头。
关于ios - UISearchDisplayController 显示解析结果，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/21469519/