伙计们，我这里有一点问题。我正在搜索我的UITableView。我搜索“iPhone”，它给我一个结果。没关系。 iPhone只有一个结果。但是当我搜索iPad时，它有两个结果，它给了我2个结果，但第一行仍然显示iphone信息。第二个显示iPad的正确信息。
当我再次点击搜索栏搜索另一个单词时，它会给我两行所需的ipad。但是当我按下取消按钮时，它会返回iPhone和iPad行。
我做错了什么？
由于
细胞和表方法：
- (NSInteger)tableView:(UITableView *)tableView
numberOfRowsInSection:(NSInteger)section {
return [self.listCod count];
}
- (UITableViewCell *)tableView:(UITableView *)tableView
cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *MyIdentifier = @"SearchResult";
UITableViewCell *cell = [tableView
dequeueReusableCellWithIdentifier:MyIdentifier];
if (cell == nil) {
cell =
[[[UITableViewCell alloc]
initWithFrame:CGRectMake(0, 0, 180, 200)
reuseIdentifier:MyIdentifier]
autorelease];
UIColor *bkgColor = [[UIColor alloc] initWithPatternImage:[UIImage imageNamed:@"SearchViewTableCellBackground.png"]];
UIView* backgroundView = [ [ [ UIView alloc ] initWithFrame:CGRectZero ] autorelease ];
backgroundView.backgroundColor = bkgColor;
cell.backgroundView = backgroundView;
// Foto do produto
UIView *teste = [[UIView alloc] init];
teste.frame = CGRectMake(5, 5, 100, 100);
teste.backgroundColor = [UIColor blueColor];
[cell addSubview:teste];
// Label de Marca
UILabel *marca = [[UILabel alloc] init];
marca.frame = CGRectMake(115, 10, 195, 25);
marca.backgroundColor = [UIColor clearColor];
marca.textColor = [UIColor grayColor];
NSString *marcaString = [self.listMarca objectAtIndex:indexPath.row];
marca.font = [UIFont systemFontOfSize:13.0];
marca.text = marcaString;
[cell addSubview:marca];
[marca release];
// Label do nome do produto
UILabel *nome = [[UILabel alloc] init];
nome.frame = CGRectMake(115, 30, 195, 25);
nome.backgroundColor = [UIColor clearColor];
nome.textColor = [[UIColor alloc] initWithRed:26.0 / 255 green:177.0 / 255 blue:240.0 / 255 alpha:1.0];
nome.font = [UIFont boldSystemFontOfSize:25.0];
NSString *noemString = [self.listName objectAtIndex:indexPath.row];
nome.text = noemString;
[cell addSubview:nome];
[nome release];
//Preco
UILabel *preco = [[UILabel alloc] init];
preco.frame = CGRectMake(115, 55, 195, 25);
preco.backgroundColor = [UIColor clearColor];
preco.textColor = [UIColor grayColor];
// Manda preco e parcela pra tratar
[self priceFormat:[self.listPreco objectAtIndex:indexPath.row] :[self.listParcela objectAtIndex:indexPath.row]];
preco.font = [UIFont boldSystemFontOfSize:20.0];
preco.text = self.precoFinal;
[cell addSubview:preco];
//Parcela
UILabel *parcelaLabel = [[UILabel alloc] init];
parcelaLabel.frame = CGRectMake(115, 73, 195, 25);
parcelaLabel.backgroundColor = [UIColor clearColor];
parcelaLabel.textColor = [UIColor grayColor];
parcelaLabel.font = [UIFont systemFontOfSize:13.0];
parcelaLabel.text = self.parcelamentoFinal;
[cell addSubview:parcelaLabel];
}
return cell;
}
搜索栏方法：
- (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar {
[searchBar setShowsCancelButton:YES animated:YES];
self.theTableView.allowsSelection = NO;
self.theTableView.scrollEnabled = NO;
[theTableView setRowHeight:110];
}
- (void)searchDisplayController:(UISearchDisplayController *)controller
willShowSearchResultsTableView:(UITableView *)tableView
{
[tableView setRowHeight:[[self theTableView] rowHeight]];
tableView.separatorStyle = UITableViewCellSeparatorStyleNone;
[self.tableData removeAllObjects];
[self.theTableView reloadData];
}
- (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar {
searchBar.text=@"";
[searchBar setShowsCancelButton:NO animated:YES];
[searchBar resignFirstResponder];
self.theTableView.allowsSelection = YES;
self.theTableView.scrollEnabled = YES;
}
- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString {
return NO;
}
- (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar {
// Converte a String do campo de busca
NSString* buscaGet =
[searchBar.text stringByAddingPercentEscapesUsingEncoding:
NSASCIIStringEncoding];
// Conecta com a URL
NSString *endereco = [[NSString alloc] initWithFormat:@"http://localhost/icomm/test.php?nome=%@", buscaGet];
// Lê o resultado
TBXML * tbxml = [[TBXML tbxmlWithURL:[NSURL URLWithString:endereco]] retain];
TBXMLElement * rootXMLElement = tbxml.rootXMLElement;
TBXMLElement * item = [TBXML childElementNamed:@"produto" parentElement:rootXMLElement];
listCod = [[NSMutableArray alloc] init];
listMarca = [[NSMutableArray alloc] init];
listName = [[NSMutableArray alloc] init];
listPreco = [[NSMutableArray alloc] init];
listParcela = [[NSMutableArray alloc] init];
while (item) {
// Seta a id do produto
TBXMLElement * codigo = [TBXML childElementNamed:@"item" parentElement:item];
NSString * codProd = [TBXML textForElement:codigo];
[self.listCod addObject:codProd];
// Seta a marca do produto
TBXMLElement * marca = [TBXML childElementNamed:@"marca" parentElement:item];
NSString * marcaProd = [TBXML textForElement:marca];
[self.listMarca addObject:marcaProd];
// Seta o nome do produto
TBXMLElement * nome = [TBXML childElementNamed:@"nome" parentElement:item];
NSString * nomeProd = [TBXML textForElement:nome];
[self.listName addObject:nomeProd];
// Seta o preco do produto
TBXMLElement * preco = [TBXML childElementNamed:@"preco" parentElement:item];
NSString * precoProd = [TBXML textForElement:preco];
[self.listPreco addObject:precoProd];
// Seta o parcela do produto
TBXMLElement * parc = [TBXML childElementNamed:@"parcela" parentElement:item];
NSString * parcProd = [TBXML textForElement:parc];
[self.listParcela addObject:parcProd];
// Procura o proximo produto.
item = [TBXML nextSiblingNamed:@"produto" searchFromElement:item
];
}
NSLog(@"%@", self.listName);
[searchBar setShowsCancelButton:NO animated:YES];
[searchBar resignFirstResponder];
self.theTableView.allowsSelection = YES;
self.theTableView.scrollEnabled = YES;
//Remove tudo da table e recarrega
[[[self searchDisplayController] searchResultsTableView] performSelectorOnMainThread:@selector(reloadData) withObject:nil waitUntilDone:NO];
[tableData removeAllObjects];
[theTableView reloadData];
}
谢谢大家。
答案 0 :(得分：1)
您只需在代码的if (cell == nil)部分内设置标签。这仅在第一次创建单元格时调用;之后，单元格会出列以便重复使用，并且您不会创建新单元格。如果要像这样出列单元格，则需要在if语句之外设置文本（以及可能更改的标签的任何其他属性）。要获得对标签的引用，您需要使用代码和viewWithTag:。
或者如果你想简化一些事情，不要将你的tableCells出列队列;虽然如果你有很多单元格，这可能会导致性能问题。