如何在iOS中searchtableview内容？

我在我的表格视图中显示内容列performance在我想使用uisearchbarsearch列表内容我实现了这个代码，但它不工作。 。

-(void)SearchBarCode { self.disableViewOverlay = [[UIView alloc]initWithFrame:CGRectMake(0.0f,44.0f,320.0f,0)]; self.disableViewOverlay.backgroundColor=[UIColor lightGrayColor]; self.disableViewOverlay.alpha = 0; theSearchBar = [[UISearchBar alloc]initWithFrame:CGRectMake(0, 5, 374.0f, 50)]; theSearchBar.delegate =self; [self.tableView addSubview:theSearchBar]; self.navigationItem.title=@"SMS LIST"; [[self tableView] setTableHeaderView:theSearchBar]; } - (void)viewDidAppear:(BOOL)animated { [super viewDidAppear:animated]; [self.theSearchBar resignFirstResponder]; } - (void) dismissKeyboard { [self.theSearchBar becomeFirstResponder]; } - (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar { [theSearchBar setShowsCancelButton:YES animated:YES]; } -(void)searchBarTextDidEndEditing:(UISearchBar *)searchBar { [theSearchBar resignFirstResponder]; [self.view endEditing:YES]; } - (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar { [theSearchBar setShowsCancelButton: YES animated: YES]; // [ self:filteredContentList]; if (!theSearchBar.text || self.theSearchBar.text.length < 1) { [searchBar resignFirstResponder]; } } 

// *********这个textDidchange方法*********************

  - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText { NSString *searchString =searchBar.text; filteredContentList = [[NSMutableArray alloc]init]; [filteredContentList removeAllObjects]; for (SmsTitle *title in array) { NSString *tempStr = title.Title; NSComparisonResult result = [tempStr compare:searchString options: (NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchString length])]; if (result == NSOrderedSame) { [filteredContentList addObject:title]; } } [self searchBarSearchButtonClicked:searchBar]; } - (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar { theSearchBar.text=nil; [theSearchBar setShowsCancelButton:NO animated:YES]; [theSearchBar resignFirstResponder]; } - (void)searchBar:(UISearchBar *)searchBar activate:(BOOL) active { self.theTableView.allowsSelection = !active; self.theTableView.scrollEnabled = !active; if (!active) { [disableViewOverlay removeFromSuperview]; [searchBar resignFirstResponder]; } else { self.disableViewOverlay.alpha = 0; [self.view addSubview:self.disableViewOverlay]; [UIView beginAnimations:@"FadeIn" context:nil]; [UIView setAnimationDuration:0.5]; self.disableViewOverlay.alpha = 0.6; [UIView commitAnimations]; // probably not needed if you have a details view since you // will go there on selection NSIndexPath *selected = [self.theTableView indexPathForSelectedRow]; if (selected) { [self.theTableView deselectRowAtIndexPath:selected animated:NO]; } } [searchBar setShowsCancelButton:active animated:YES]; } -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { [self.view endEditing:YES]; [self.theSearchBar resignFirstResponder]; } -(BOOL)textFieldShouldReturn:(UITextField *)textField { textField.returnKeyType=UIReturnKeyDefault ; return[textField resignFirstResponder]; } - (void)didReceiveMemoryWarning { [super didReceiveMemoryWarning]; } #pragma mark - Table view data source - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection: (NSInteger)section { return [array count]; } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath: (NSIndexPath *)indexPath { static NSString *CellIdentifier=@"Cell"; UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:CellIdentifier ]; if(!cell) { cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier] ; } SmsTitle *title = [array objectAtIndex:indexPath.row]; cell.textLabel.text = title.CategoryId; cell.textLabel.text = title.Title; cell.textLabel.text=title.Id; [cell.textLabel setText:[NSString stringWithFormat:@"%@ ",[title valueForKey:@"Title"]]]; cell.accessoryType = UITableViewCellAccessoryDisclosureIndicator; return cell; } 

Answer 1

尝试这个

 searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0.0, 0.0, 320.0, 41.0)]; [self.view addSubview:searchBar]; searchBar.delegate=self; - (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView { // Return the number of sections. return 1; } - (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section { // Return the number of rows in the section. if (isSearching) { return [filteredContentList count]; } else { return [titlearray count]; } } - (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation { // Return YES for supported orientations return (interfaceOrientation != UIInterfaceOrientationPortraitUpsideDown); } - (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath { static NSString *simpleTableIdentifier = @"SimpleTableCell"; SimpleTableCell *cell = (SimpleTableCell *)[tableView dequeueReusableCellWithIdentifier:simpleTableIdentifier]; if (cell == nil) { NSArray *nib = [[NSBundle mainBundle] loadNibNamed:@"SimpleTableCell" owner:self options:nil]; cell = [nib objectAtIndex:0]; } if (isSearching) { cell.nameLabel.text = [filteredContentList objectAtIndex:indexPath.row]; cell.thumbnailImageView.image =[filteredImgArray objectAtIndex:indexPath.row]; } else { cell.thumbnailImageView.image = [imagearray objectAtIndex:indexPath.row]; cell.nameLabel.text = [titlearray objectAtIndex:indexPath.row]; } return cell; } - (void)searchTableList { NSString *searchString = searchBar.text; for (int i=0; i<titlearray.count; i++) { NSString *tempStr=[titlearray objectAtIndex:i]; NSComparisonResult result = [tempStr compare:searchString options:(NSCaseInsensitiveSearch|NSDiacriticInsensitiveSearch) range:NSMakeRange(0, [searchString length])]; if (result == NSOrderedSame) { [filteredContentList addObject:tempStr]; [filteredImgArray addObject:[imagearray objectAtIndex:i]]; } } } #pragma mark - Search Implementation - (void)searchBarTextDidBeginEditing:(UISearchBar *)searchBar { isSearching = YES; } - (void)searchBar:(UISearchBar *)searchBar textDidChange:(NSString *)searchText { NSLog(@"Text change - %d",isSearching); //Remove all objects first. [filteredContentList removeAllObjects]; [filteredImgArray removeAllObjects]; if([searchText length] != 0) { isSearching = YES; [self searchTableList]; //tblContentList.hidden=NO; } else { isSearching = NO; // tblContentList.hidden=YES; } [tblContentList reloadData]; } - (void)searchBarCancelButtonClicked:(UISearchBar *)searchBar { NSLog(@"Cancel clicked"); } - (void)searchBarSearchButtonClicked:(UISearchBar *)searchBar { NSLog(@"Search Clicked"); [self searchTableList]; } 

我希望这对你有帮助

Answer 2

它不起作用，因为您始终将其用作数据源：

 SmsTitle *title = [array objectAtIndex:indexPath.row]; 

所以你永远不会从filteredContentList获取数据。

你需要做的是保持在属性中的主要UITableView的引用，并使用此方法来获取属性NSArray作为所有UITableViewDataSource委托方法中的数据源：

 - (NSArray*) dataSourceForTableView:(UITableView*) tableView { return tableView == self.tableView ? self.array : self.filteredContentList; } 

Answer 3

查看加载

 allItem = [[NSArray alloc] initWithObjects:@"One",@"Two",@"Three",@"Four",@"Five",@"Six", nil]; displayItem = [[NSMutableArray alloc] initWithArray:allItem]; 

仅添加此search栏方法

 -(void)searchBar:(UISearchBar *) searchBar textDidChange:(NSString *)searchText { if ([searchText length] == 0) { [displayItem removeAllObjects]; [displayItem addObjectsFromArray:allItem]; } else { [displayItem removeAllObjects]; for (NSString *string in allItem) { NSRange r = [string rangeOfString:searchText options:NSCaseInsensitiveSearch]; if (r.location != NSNotFound) { [displayItem addObject:string]; } } } [tableViewObj reloadData]; 

}

 -(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar { [searchBar resignFirstResponder];}