iOS 搜索过滤

来源：互联网发布：centos安装tomcat 编辑：程序博客网时间：2024/05/29 18:18

1.第一步构建searchBar

_searchBar = [[EMSearchBaralloc] initWithFrame:CGRectMake(0,0,self.view.frame.size.width,44)];

_searchBar.delegate =self;

_searchBar.placeholder =NSLocalizedString(@"search",@"Search");

_searchBar.backgroundColor = [UIColorcolorWithRed:0.747green:0.756blue:0.751alpha:1.000];

tableV.tableHeaderView =_searchBar;

2.第二步构建控制器继承代理<UISearchDisplayDelegate,UISearchBarDelegate>

_searchController = [[UISearchDisplayControlleralloc]initWithSearchBar:_searchBarcontentsController:self];

_searchController.searchResultsDataSource =self;

_searchController.searchResultsDelegate =self;

_searchController.searchResultsTableView.allowsMultipleSelection = YES;

_searchController.delegate =self;

3.第三部代理方法里过滤数据

#pragma mark - UISearchDisplayDelegate

- (BOOL)searchDisplayController:(UISearchDisplayController *)controller shouldReloadTableForSearchString:(NSString *)searchString{

NSPredicate *predicate1 = [NSPredicatepredicateWithFormat:@"self.memberName contains [cd] %@", controller.searchBar.text];

NSPredicate *predicate2 = [NSPredicatepredicateWithFormat:@"self.pinyinString contains [cd] %@", controller.searchBar.text];

NSPredicate *predicate = [NSCompoundPredicateorPredicateWithSubpredicates:@[predicate1, predicate2]];

if (searchModelArr !=nil) {

[searchModelArrremoveAllObjects];

}

//过滤数据

NSArray *tempArray = [modelArrfilteredArrayUsingPredicate:predicate];

[searchModelArraddObjectsFromArray:tempArray];

//刷新表格

returnYES;

}

4.第四步在tableVew 代理方法里记得判断然后取不同的数据源

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