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當我在我的搜索中輸入字母時，我會遇到大約4秒的延遲並且無法執行任何操作。其他一切工作都很好。 UISearchDisplayController找到我想要的，segue很好。我不確定它是關於內存還是代碼中的一些錯誤。誰能幫我？由於UISearchDisplayController結果被延遲3-6secs
我的代碼
TableViewController.m
@implementation TableViewController
@synthesize colorsTable;
@synthesize searchBar;
@synthesize searchController;
@synthesize searchResults;
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
if ([segue.identifier isEqualToString:@"showDetail"]) {
{
DetailViewController *sdvc = (DetailViewController *)[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.detailItem = object;
} else {
NSIndexPath *indexPath = [self.tableView indexPathForSelectedRow];
PFObject *object = [self.objects objectAtIndex:indexPath.row];
DetailViewController *detailViewController = [segue destinationViewController];
detailViewController.detailItem = object;
}
}
}
}
- (void)viewDidLoad
{
[super viewDidLoad];
[self performSelector:@selector(runThisMethod) withObject:nil afterDelay:1.9f];
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;
CGPoint offset = CGPointMake(0, self.searchBar.frame.size.height);
self.tableView.contentOffset = offset;
self.searchResults = [NSMutableArray array];
-(void)filterResults:(NSString *)searchTerm {
[self.searchResults removeAllObjects];
PFQuery *query = [PFQuery queryWithClassName: self.parseClassName];
[query whereKeyExists:@"MestoName"]; //this is based on whatever query you are trying to accomplish
[query whereKey:@"MestoName" containsString:searchTerm];
NSArray *results = [query findObjects];
NSLog(@"%@", results);
NSLog(@"%u", results.count);
[self.searchResults addObjectsFromArray:results];
}
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
[self filterResults:searchString];
return YES;
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section {
if (tableView == self.tableView) {
//if (tableView == self.searchDisplayController.searchResultsTableView) {
return self.objects.count;
} else {
return self.searchResults.count;
}
}
- (void)searchDisplayController:(UISearchDisplayController *)controller didLoadSearchResultsTableView:(UITableView *)tableView
{
tableView.rowHeight = 90.0f;
}
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath object:(PFObject *)object {
static NSString *uniqueIdentifier = @"colorsCell";
CustomCell *cell = nil;
cell = (CustomCell *) [self.tableView dequeueReusableCellWithIdentifier:uniqueIdentifier];
[cell.imagevieww setImageWithURL:[NSURL URLWithString:[object objectForKey:@"ImageURL"]]
placeholderImage:[UIImage imageNamed:@"placeholder.png"]];
cell.cellTitle.text = [object objectForKey:@"MestoName"];
cell.cellDescript.text = [object objectForKey:@"MestoSubname"];
if (!cell) {
NSArray *topLevelObjects = [[NSBundle mainBundle] loadNibNamed:@"colorsCell" owner:nil options:nil];
for (id currentObject in topLevelObjects)
{
if([currentObject isKindOfClass:[CustomCell class]])
{
cell = (CustomCell *)currentObject;
break;
}
}
}
if (tableView == self.tableView) {
cell.cellTitle.text = [object objectForKey:@"MestoName"];
} else {
PFUser *obj2 = [self.searchResults objectAtIndex:indexPath.row];
PFQuery *query = [PFQuery queryWithClassName:@"Mesta"];
PFObject *searchedUser = [query getObjectWithId:obj2.objectId];
NSString *boottext = [searchedUser objectForKey:@"MestoName"];
cell.cellTitle.text = boottext;
NSString *bootsubtext = [searchedUser objectForKey:@"MestoSubname"];
cell.cellDescript.text = bootsubtext;
NSString *bootimage = [searchedUser objectForKey:@"ImageURL"];
[cell.imagevieww setImageWithURL:[NSURL URLWithString:bootimage]];
NSLog(@"Content: %@", boottext);
}
return cell;
}
@end
需要更多的信息.. – codercat
我想我終於知道原因。當我搜索某些東西時，我得到了每個對象單元格1的API，因此如果我將其添加到搜索字母R中，並找到5個對象，它就會給我6個API。當我放棄取消時，它再次計算我6 API。這可能是它需要這麼長時間的原因。我不知道如何減少。你還有什麼更多的信息？ – Milan1111