@interface ViewController ()<UITableViewDataSource,UITableViewDelegate,UISearchBarDelegate,UISearchResultsUpdating>
@property(nonatomic,strong) NSMutableArray * datalist;
@property(nonatomic,strong) NSMutableArray * searchList;
@property(nonatomic,strong) UITableView * tableView;
@property (nonatomic, strong) UISearchController *searchController;
@end
@implementation ViewController
-(UITableView *)tableView {
if (!_tableView) {
_tableView=[[UITableView alloc]initWithFrame:self.view.frame style:UITableViewStylePlain];
}
return _tableView;
}
- (void)viewDidLoad {
[super viewDidLoad];
// Do any additional setup after loading the view, typically from a nib.
self.datalist = [NSMutableArray arrayWithCapacity:100];
for (NSUInteger i=0; i<100; i++) {
[self.datalist addObject:[NSString stringWithFormat:@"%ld -FlyElephant",(long)i]];
}
_searchController = [[UISearchController alloc] initWithSearchResultsController:nil];
_searchController.searchResultsUpdater = self;
_searchController.dimsBackgroundDuringPresentation = NO;
_searchController.hidesNavigationBarDuringPresentation = NO;
_searchController.searchBar.frame = CGRectMake(self.searchController.searchBar.frame.origin.x, self.searchController.searchBar.frame.origin.y, self.searchController.searchBar.frame.size.width, 44.0);
self.tableView.tableHeaderView = self.searchController.searchBar;
[self addTableView];
}
-(void)addTableView{
self.tableView.delegate =self;
self.tableView.dataSource =self;
[self.view addSubview:self.tableView];
}
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
if (self.searchController.active) {
return [self.searchList count];
}else{
return [self.datalist count];
}
}
-(BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar{
return YES;
}
-(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar{
NSLog(@"结束");
return YES;
}
-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{
static NSString *flag=@"cellFlag";
UITableViewCell *cell=[tableView dequeueReusableCellWithIdentifier:flag];
if (cell==nil) {
cell=[[UITableViewCell alloc]initWithStyle:UITableViewCellStyleDefault reuseIdentifier:flag];
}
if (self.searchController.active) {
[cell.textLabel setText:self.searchList[indexPath.row]];
}
else{
[cell.textLabel setText:self.datalist[indexPath.row]];
}
return cell;
}
//- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString{
// // 谓词的包含语法,之前文章介绍过
http://www.cnblogs.com/xiaofeixiang/// NSPredicate *preicate = [NSPredicate predicateWithFormat:@"SELF CONTAINS[c] %@", searchString];
// if (self.searchList!= nil) {
// [self.searchList removeAllObjects];
// }
// //过滤数据
// self.searchList= [NSMutableArray arrayWithArray:[_datalist filteredArrayUsingPredicate:preicate]];
// //刷新表格
// return YES;
//}
-(void)updateSearchResultsForSearchController:(UISearchController *)searchController {
NSString *searchString = [self.searchController.searchBar text];
NSPredicate *preicate = [NSPredicate predicateWithFormat:@"SELF CONTAINS[c] %@", searchString];
if (self.searchList!= nil) {
[self.searchList removeAllObjects];
}
//过滤数据
self.searchList= [NSMutableArray arrayWithArray:[_datalist filteredArrayUsingPredicate:preicate]];
//刷新表格
[self.tableView reloadData];
}
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{
if (self.searchController.active) {
NSLog(@"搜索行%ld",(long)indexPath.row);
}else{
NSLog(@"正常%ld",indexPath.row);
}
}
