我正在显示我的表格视图中的内容列表现在我想使用uisearchbar搜索该列表内容我实现了此代码但它不起作用。
-(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];
}
}
// ********* this 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;
}
答案 0 :(得分：3)
试试这个
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];
}
我希望对你有所帮助
答案 1 :(得分：0)
它不起作用，因为您始终将此作为数据源使用：
SmsTitle *title = [array objectAtIndex:indexPath.row];
所以你永远不会从filteredContentList中获取数据。
您需要做的是在属性中保留对主UITableView的引用，并使用此方法将属性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;
}
答案 2 :(得分：0)
查看已加载
allItem = [[NSArray alloc] initWithObjects:@"One",@"Two",@"Three",@"Four",@"Five",@"Six", nil];
displayItem = [[NSMutableArray alloc] initWithArray:allItem];
仅添加此搜索栏方法
-(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];}