IOS uses Uisearchdisplaycontroller to search for features

Uisearchdisplaycontroller is a controller in iOS that handles the search function, which needs to be used in conjunction with Uisearchbar

The sample code is as follows:

1 //2 //WKROOTVIEWCONTROLLER.M3 //search function for table view4 //5 //Created by student on 14-10-20.6 //Copyright (c) 2014 Wukong. All rights reserved.7 //8 9 #import "WKRootViewController.h"Ten  One @interfaceWkrootviewcontroller () A  -@property (Strong, nonatomic) nsmutablearray*DataSource; -  the@property (Strong, nonatomic) nsmutablearray*Resultarrat; -  -  - @end +  - @implementationWkrootviewcontroller + { A     //table view for loading a data source atUITableView *_tableview; -      -Uisearchbar *_searchbar; -      -Uisearchdisplaycontroller *_searchcontrol; - } in- (ID) Initwithnibname: (NSString *) Nibnameornil Bundle: (NSBundle *) Nibbundleornil - { toSelf =[Super Initwithnibname:nibnameornil Bundle:nibbundleornil]; +     if(self) { -         //Custom Initialization the     } *     returnSelf ; $ }Panax Notoginseng  -- (void) Viewdidload the { + [Super Viewdidload]; A      the [self createui]; + [self createdatasource]; -     //Do any additional setup after loading the view. $ } $  -- (void) CreateDataSource - { the_datasource =[[Nsmutablearray alloc] init]; -_resultarrat =[[Nsmutablearray alloc] init];Wuyi      for(inti ='A'; I <='Z'; i++) { theNsmutablearray *section =[[Nsmutablearray alloc] init]; -          for(intj =1; J <=Ten; J + +) { WuNSString *str = [NSString stringWithFormat:@"%c-%d", I, j]; - [Section addobject:str]; About         } $ [_datasource addobject:section]; -     } - } -  A #pragmaMark-uitableviewdatasource +  the-(Nsinteger) Numberofsectionsintableview: (UITableView *) TableView - { $     //determine the current displayed table the     if(TableView! =_tableview) the         return 1; the     return_datasource.count; the } -  in-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger) section the { the     if(TableView! =_tableview) { About         return_resultarrat.count; the     } the     return[[_datasource objectatindex:section] count]; the } +  --(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) Indexpath the {Bayi[TableView Registerclass:[uitableviewcellclass] Forcellreuseidentifier:@"Cell"]; the      theUITableViewCell *cell = [TableView dequeuereusablecellwithidentifier:@"Cell"]; -     if(TableView! =_tableview) { -Cell.textLabel.text =[_resultarrat ObjectAtIndex:indexPath.row]; the}Else{ theCell.textLabel.text =[[_datasource objectAtIndex:indexPath.section] objectAtIndex:indexPath.row]; the     } the     returncell; - } the  the- (void) didreceivememorywarning the {94 [Super didreceivememorywarning]; the     //Dispose of any resources the can be recreated. the } the 98  About #pragmaMark-createui -- (void) Createui101 {102_tableview = [[UITableView alloc] Initwithframe:cgrectmake (Ten, -, -, the) Style:uitableviewstyleplain];103_tableview.Delegate=Self ;104_tableview.datasource =Self ; the [Self.view Addsubview:_tableview];106     107_searchbar = [[Uisearchbar alloc] Initwithframe:cgrectmake (0,0, -, -)];108_searchbar.searchbarstyle =Uisearchbarstyleminimal;109_searchbar.Delegate=Self ; the [_tableview Settableheaderview:_searchbar];111     /* the first parameter: A Uisearchbar object for entering search content113 The second parameter: The Controller object that is provided to my tabular view data source, which must be the two protocol that implements the table the      */ the_searchcontrol =[[Uisearchdisplaycontroller alloc] Initwithsearchbar:_searchbar contentscontroller:self]; the //_searchcontrol.searchresultstableview117 //UILabel *label = [[UILabel alloc] Initwithframe:cgrectmake (0, 0,.)];118 //label.backgroundcolor =[uicolor Redcolor];119 //[_searchcontrol.searchresultstableview Settableheaderview:label]; -     //to set a delegate object for a table view that comes with _searchcontrol121 [_searchcontrol setsearchresultsdatasource:self];122 [_searchcontrol setsearchresultsdelegate:self];123 }124  the #pragmaMark-uisearchbardelegate126- (void) Searchbar: (Uisearchbar *) Searchbar textdidchange: (NSString *) SearchText127 { - [_resultarrat removeallobjects];129NSString *str = [NSString stringWithFormat:@"*%@*", SearchText]; theNspredicate *pred = [Nspredicate predicatewithformat:@"Self-like %@", str];131      for(Nsmutablearray *arrinch_datasource) { the          for(NSString *strincharr) {133             if([pred evaluatewithobject:str]) {134 [_resultarrat addobject:str];135             }136         }137     }138 }139 @end

IOS uses Uisearchdisplaycontroller to search for features