代码语言：javascript复制
///在 .h 写代理 <UITableViewDelegate,UITableViewDataSource,UISearchBarDelegate>
///结合UITableView 展示了UISearchBar
_searchArray = [[NSMutableArray alloc] init];
_dataArray = [[NSMutableArray alloc] initWithObjects:@"qq", @"tencent", @"NOKIA", @"samsung", @"google", @"apple", @"MicroSoft", @"htc", nil];
_tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 20, 320, 460) style:UITableViewStylePlain];
_tableView.delegate = self;
_tableView.dataSource = self;
[self.view addSubview:_tableView];
[_tableView release];
UISearchBar* searchBar = [[UISearchBar alloc] initWithFrame:CGRectMake(0, 0, 320, 84)];
_tableView.tableHeaderView = searchBar;
//类型
//searchBar.barStyle = UIBarStyleBlack;
//占位符
searchBar.placeholder = @"请输入搜索内容";
//副标题
//searchBar.prompt = @"这是什么?";
//显示按钮
searchBar.showsBookmarkButton = YES;
searchBar.showsCancelButton = YES;
searchBar.showsSearchResultsButton = YES;
searchBar.showsScopeBar = YES;
[searchBar setScopeButtonTitles:[NSArray arrayWithObjects:@"a", @"b", @"c", @"d",nil]];
//设置代理
searchBar.delegate = self;
- (void)searchBar:(UISearchBar *)searchBar selectedScopeButtonIndexDidChange:(NSInteger)selectedScope{
NSArray* array = [NSArray arrayWithObjects:@"a", @"b", @"c", @"d",nil];
NSString* str = [array objectAtIndex:selectedScope];
searchBar.text = str;
}
//搜索
(void)searchBar:(UISearchBar )searchBar textDidChange:(NSString )searchText{
//如果搜索栏为空，代表我们没有在搜索，tableView需要显示原数据。如果不为空，代表我们在搜索，tableView要显示搜索结果
if (searchBar.text == nil || [searchBar.text isEqualToString:@""]) {
_isSearch = NO;
} else {
_isSearch = YES;
[_searchArray removeAllObjects];
for (NSString* str in _dataArray) {
//判断str里面是否包含searchBar.text
NSRange range = [str rangeOfString:searchBar.text];
if (range.location != NSNotFound) {
[_searchArray addObject:str];
}
}
}
[_tableView reloadData];
}
(void)searchBarCancelButtonClicked:(UISearchBar *)searchBar{
[searchBar resignFirstResponder];
}
//tableView delegate
(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
if (_isSearch) {
return _searchArray.count;
}
return _dataArray.count;
}
(UITableViewCell)tableView:(UITableView )tableView cellForRowAtIndexPath:(NSIndexPath )indexPath{
UITableViewCell cell = [tableView dequeueReusableCellWithIdentifier:indexPath.row%2==0?@"IDRed":@"IDBlue"];
if (cell == nil) {
cell = [[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:indexPath.row%2==0?@"IDRed":@"IDBlue"] autorelease];
if (indexPath.row%2 == 0) {
cell.contentView.backgroundColor = [UIColor redColor];
} else {
cell.contentView.backgroundColor = [UIColor blueColor];
}
}
if (_isSearch) {
cell.textLabel.text = [_searchArray objectAtIndex:indexPath.row];
} else {
cell.textLabel.text = [_dataArray objectAtIndex:indexPath.row];
}
return cell;
}</pre> 
