iOS-UISearchBar和UISearchController(參考網友來練習一下)

標籤：

#import "ViewController.h"#import "TestCell.h"@interface ViewController ()<UITableViewDataSource,UITableViewDelegate,UISearchBarDelegate,UISearchResultsUpdating>{    NSMutableArray *dataArray;    NSMutableArray *searchArray;    UISearchController *mySearchController;   }@property (weak, nonatomic) IBOutlet UITableView *myTableView;@end@implementation ViewController- (void)viewDidLoad{    [super viewDidLoad];        mySearchController=[[UISearchController alloc]initWithSearchResultsController:nil];    mySearchController.searchResultsUpdater=self;    mySearchController.dimsBackgroundDuringPresentation=NO;    mySearchController.hidesNavigationBarDuringPresentation=NO;    mySearchController.searchBar.frame=CGRectMake(mySearchController.searchBar.frame.origin.x, mySearchController.searchBar.frame.origin.y, mySearchController.searchBar.frame.size.width, 44.0 );    self.myTableView.tableHeaderView=mySearchController.searchBar;        dataArray=[NSMutableArray array];    for(NSInteger i=0;i<100;i++)    {        [dataArray addObject:[NSString stringWithFormat:@"%ld-test",(long)i]];    }    }-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    if (mySearchController.active)    {        return searchArray.count;    }    else    {        return dataArray.count;    }}-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{    return 44;}-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    TestCell *testCell=[tableView dequeueReusableCellWithIdentifier:@"TestCell" forIndexPath:indexPath];    if (mySearchController.active) {        testCell.testLabel.text=searchArray[indexPath.row];    }    else    {        testCell.testLabel.text=dataArray[indexPath.row];    }        return testCell;}-(void)updateSearchResultsForSearchController:(UISearchController *)searchController{    NSString *searchString=mySearchController.searchBar.text;    NSPredicate *predicate=[NSPredicate predicateWithFormat:@"self contains[c]%@",searchString];    if (searchArray.count)    {        [searchArray removeAllObjects];    }    searchArray=[NSMutableArray arrayWithArray:[dataArray filteredArrayUsingPredicate:predicate]];    [_myTableView reloadData];    }@end

 

iOS-UISearchBar和UISearchController(參考網友來練習一下)