iOS UISearchController的使用

- (void)viewWillAppear:(BOOL)animated{

[super viewWillAppear:animated];

[self setTabBarHidden:YES withAnimation:YES];

}

- (void)viewWillDisappear:(BOOL)animated{

[super viewWillDisappear:animated];

[self.mySearchController.searchBar setHidden:YES];

[self setTabBarHidden:NO withAnimation:YES];

}

- (void)viewDidLoad {

[super viewDidLoad];

[self setExtraCellLineHidden:self.myTableViewW

];

[self initCellInfo];

[self initTableView];

[self initTitleBar];

[self initHeader];

[self initSearchBar];

}

- (void)initSearchBar{

self.mySearchController=[[UISearchController alloc]initWithSearchResultsController:nil];

self.mySearchController.searchBar.frame=CGRectMake(100, 10, 200, 44);

self.myTableViewW.tableHeaderView=self.mySearchController.searchBar;

[self.mySearchController.searchBar sizeToFit];

self.mySearchController.searchResultsUpdater=self;

self.mySearchController.dimsBackgroundDuringPresentation=NO;

self.mySearchController.hidesNavigationBarDuringPresentation=NO;

self.mySearchController.searchBar.placeholder=@"输入赤兔ID或者昵称查询";

[self presentViewController:self.mySearchController animated:YES completion:nil];

}

- (void)initHeader{

}

- (BOOL)textFieldShouldReturn:(UITextField *)textField{

[textField resignFirstResponder];

return YES;

}

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{

[self hiddenkeyBoard];

}

- (void)hiddenkeyBoard{

[self.myTextField resignFirstResponder];

}

- (void)initTitleBar{

self.title=@"添加朋友";

}

- (void)initCellInfo{

NSMutableArray *cellInfoArray=[[NSMutableArray alloc]init];

NSMutableArray *nickNameArray=[[NSMutableArray alloc]init];

NSMutableArray *IDArray=[[NSMutableArray alloc]init];

CellInfo_t *cellInfo=[self newCellInfo];

cellInfo.image=@"http://b.hiphotos.baidu.com/image/w%3D310/sign=a0eb5ed6d52a60595210e71b1835342d/2fdda3cc7cd98d10f00dbe2e233fb80e7aec90d0.jpg";

cellInfo.nickName=@"呱呱呱";

cellInfo.ID=@"1";

[cellInfoArray addObject:cellInfo];

[nickNameArray addObject:cellInfo.nickName];

[IDArray addObject:cellInfo.ID];

cellInfo=[self newCellInfo];

cellInfo.image=@"http://c.hiphotos.baidu.com/image/w%3D310/sign=4632f6f379cb0a4685228d385b62f63e/902397dda144ad341343938ed2a20cf431ad853e.jpg";

cellInfo.nickName=@"任溶溶";

cellInfo.ID=@"2";

[cellInfoArray addObject:cellInfo];

[nickNameArray addObject:cellInfo.nickName];

[IDArray addObject:cellInfo.ID];

cellInfo=[self newCellInfo];

cellInfo.image=@"http://tao.goulew.com/users/upfile/201403/20140305222531big.jpg";

cellInfo.nickName=@"小安江湖";

cellInfo.ID=@"3";

[cellInfoArray addObject:cellInfo];

[nickNameArray addObject:cellInfo.nickName];

[IDArray addObject:cellInfo.ID];

cellInfo=[self newCellInfo];

cellInfo.image=@"http://d.hiphotos.baidu.com/image/w%3D310/sign=4276550c5e6034a829e2be80fb1249d9/d000baa1cd11728b9c43502fcafcc3cec3fd2c55.jpg";

cellInfo.nickName=@"路见不平";

cellInfo.ID=@"4";

[cellInfoArray addObject:cellInfo];

[nickNameArray addObject:cellInfo.nickName];

[IDArray addObject:cellInfo.ID];

self.nickNameArray=nickNameArray;

self.cellInfoArray=cellInfoArray;

self.IDArray=IDArray;

}

- (CellInfo_t *)newCellInfo{

CellInfo_t *info=[CellInfo_t new];

return info;

}

- (void)initTableView{

self.myTableViewW.delegate=self;

self.myTableViewW.dataSource=self;

}

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{

return 1;

}

- (NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{

if (self.mySearchController.active){

return self.searchList.count;

}else{

return self.cellInfoArray.count;

}

}

- (CellInfo_t *)getCellInfo:(NSInteger)row{

return self.cellInfoArray[row];

}

- (CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{

return 80;

}

- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{

CellInfo_t *cellInfo=[self getCellInfo:indexPath.row];

static NSString *cellID=@"RRAddFriendCell";

RRAddFriendCell *cell=[tableView dequeueReusableCellWithIdentifier:cellID];

if (cell==nil) {

cell=[[[NSBundle mainBundle]loadNibNamed:cellID owner:self options:nil]lastObject];

}

if(self.mySearchController.active){

cell.mynickName=self.searchList[indexPath.row];

}else{

PAImageView *image=[[PAImageView alloc]initWithFrame:cell.myimage.bounds backgroundProgressColor:[UIColor lightGrayColor] progressColor:nil image:nil];

[cell.myimage addSubview:image];

[image setImageURL:cellInfo.image];

cell.mynickName=cellInfo.nickName;

cell.myID=cellInfo.ID;

}

[cell.myapplyAdd setTitle:@"申请添加" forState:UIControlStateNormal];

[cell.myapplyAdd addTarget:self action:@selector(applyAdd) forControlEvents:UIControlEventTouchUpInside];

cell.selectionStyle=UITableViewCellSelectionStyleNone;

return cell;

}

- (BOOL)searchBarShouldBeginEditing:(UISearchBar *)searchBar{

return YES;

}

- (void)updateSearchResultsForSearchController:(UISearchController *)searchController{

NSString *searchString = self.mySearchController.searchBar.text;

NSPredicate *preicate = [NSPredicate predicateWithFormat:@"SELF CONTAINS[c] %@", searchString];//用predicateWithFormat创建一个谓词，name作为键路径

if (self.searchList!= nil) {

[self.searchList removeAllObjects];

}

//过滤数据

self.searchList= [NSMutableArray arrayWithArray:[self.nickNameArray filteredArrayUsingPredicate:preicate]];

[self.myTableViewW reloadData];

}

- (void)applyAdd{

NSLog(@"申请添加");

}

- (void)setExtraCellLineHidden: (UITableView *)tableView{

UIView *view =[ [UIView alloc]init];

view.backgroundColor = [UIColor clearColor];

[tableView setTableFooterView:view];

[tableView setTableHeaderView:view];

}

-(BOOL)searchBarShouldEndEditing:(UISearchBar *)searchBar{

[searchBar endEditing:YES];

return YES;

}

-(void)searchBarSearchButtonClicked:(UISearchBar *)searchBar{

[searchBar endEditing:YES];

}