Ui3_uitableviewdelete (multiple selection)

  appdelegate.m//  Ui3_uitableviewdelete (multiple selection)////  Created by zhangxueming on 15/7/14.//  Copyright (c ) 2015 zhangxueming. All rights reserved.//#import "AppDelegate.h" #import "ViewController.h" @interface appdelegate () @end @implementation appdelegate-(BOOL) Application: (UIApplication *) application didfinishlaunchingwithoptions: (NSDictionary *) launchoptions {    //Override point for customization after application launch.    Viewcontroller *root = [[Viewcontroller alloc] init];    Uinavigationcontroller *nav = [[Uinavigationcontroller alloc] initwithrootviewcontroller:root];    Self.window.rootViewController = nav;    [Self.window makekeyandvisible];        return YES;}

viewcontroller.h//Ui3_uitableviewdelete (multiple selection)////Created by zhangxueming on 15/7/14.//Copyright (c) 2015 ZHANGX Ueming. All rights reserved.//#import <UIKit/UIKit.h> @interface Viewcontroller:uiviewcontroller < Uitableviewdatasource, uitableviewdelegate> @end////viewcontroller.m//ui3_uitableviewdelete (multiple selection)////Created by Zhangxueming on 15/7/14.//Copyright (c) 2015 zhangxueming.    All rights reserved.//#import "ViewController.h" @interface Viewcontroller () {UITableView *_tableview;    Data source Nsmutablearray *_datalist; The data to be deleted Nsmutablearray *_removelist;}    @end @implementation viewcontroller-(void) viewdidload {[Super viewdidload];    Additional setup after loading the view, typically from a nib.    [Self creatdatasource]; [Self creatui];}    Create data source-(void) creatdatasource{_datalist = [Nsmutablearray array];    _removelist = [Nsmutablearray array];    Nsmutablearray *boys = [Nsmutablearray array];     for (int i=0; i<20; i++) {   NSString *name = [NSString stringwithformat:@ "boy:%d", i+1];    [Boys Addobject:name];        } [_datalist Addobject:boys];    Nsmutablearray *grils = [Nsmutablearray array];        for (int i= 0; i<10; i++) {nsstring *name = [NSString stringwithformat:@ "gril:%d", i+1];    [Grils Addobject:name]; } [_datalist addobject:grils];}        Create ui-(void) creatui{_tableview = [[UITableView alloc] InitWithFrame:self.view.frame Style:uitableviewstyleplain];    Set proxy _tableview.delegate = self;        _tableview.datasource = self;    Set tail view UIView *footerview = [[UIView alloc] Initwithframe:cgrectmake (0,0, Self.view.frame.size.width, 44)];    Footerview.backgroundcolor = [Uicolor Cyancolor];    _tableview.tablefooterview = Footerview;    NSLog (@ "view =%@", _tableview.tablefooterview);    Set Head view UIView *headerview = [[UIView alloc] Initwithframe:cgrectmake (0, 0, Self.view.frame.size.height, 44)];    Headerview.backgroundcolor = [Uicolor Yellowcolor]; _taBleview.tableheaderview = Headerview;    Add btn UIButton *btn = [UIButton Buttonwithtype:uibuttontypesystem];    Btn.frame =cgrectmake (0, footerview.frame.size.width-100,44);    [Btn settitle:@ "Remove" forstate:uicontrolstatenormal];    [Btn addtarget:self Action: @selector (Removedata) forcontrolevents:uicontroleventtouchupinside];        [Footerview ADDSUBVIEW:BTN];            Set Edit button Self.navigationItem.leftBarButtonItem = Self.editbuttonitem; [Self.view Addsubview:_tableview];}    Enter edit state-(void) setediting: (BOOL) editing animated: (BOOL) animated{[Super setediting:editing Animated:yes]; [_tableview setediting:editing animated:yes];} editing-(Uitableviewcelleditingstyle) TableView: (UITableView *) TableView Editingstyleforrowatindexpath: ( Nsindexpath *) indexpath{//Set insert and delete to automatically enter multi-select status return uitableviewcelleditingstyledelete| Uitableviewcelleditingstyleinsert;} Delete data-(void) removedata{for (int i=0; i<2; i++) {Nsarray *array = [[_data]List objectatindex:i] copy];        Nsinteger rows = Array.count;            for (int j=0; j<rows; J + +) {NSString *obj = [array objectatindex:j];            if ([_removelist containsobject:obj]) {[[_datalist objectatindex:i] removeobject:obj]; }}} [_tableview reloaddata];} #pragma mark---uitableview---//return partition number-(Nsinteger) Numberofsectionsintableview: (UITableView *) tableview{return _dat Alist.count;} Returns the number of rows per partition-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection: (nsinteger) section{return [_ DataList Objectatindex:section] count];} Return uitableviewcell-(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *)    indexpath{static NSString *cellid = @ "Cell";    UITableViewCell *cell = [TableView dequeuereusablecellwithidentifier:cellid];    if (!cell) {cell = [[UITableViewCell alloc] Initwithstyle:uitableviewcellstylesubtitle reuseidentifier:cellid]; } cell.accessOrytype = Uitableviewcellaccessorydisclosureindicator;    Cell.textLabel.text = [[_datalist objectAtIndex:indexPath.section] objectAtIndex:indexPath.row]; return cell;} Checked state-(void) TableView: (UITableView *) TableView Didselectrowatindexpath: (Nsindexpath *) indexpath{if (Tableview.ed        iting) {NSString *obj = [[_datalist objectAtIndex:indexPath.section] objectAtIndex:indexPath.row]; if (![        _removelist Containsobject:obj]) {[_removelist addobject:obj]; }}}//End Check state-(void) TableView: (UITableView *) TableView Diddeselectrowatindexpath: (Nsindexpath *) indexpath{if (table        view.editing) {NSString *obj = [[_datalist objectAtIndex:indexPath.section] objectAtIndex:indexPath.row];        if ([_removelist containsobject:obj]) {[_removelist removeobject:obj];    }}}-(void) didreceivememorywarning {[Super didreceivememorywarning]; Dispose of any resources the can be recreated.} @end

Ui3_uitableviewdelete (multiple selection)