UITableViewCell edit, move, add or delete

Classes and files

Appdelegate.m

#import   "AppDelegate.h" #import   "MainViewController.h" @implementation  AppDelegate-  (BOOL) Application: (uiapplication *) Application didfinishlaunchingwithoptions: (NSDictionary *) launchoptions{    self.window = [[uiwindow alloc] initwithframe:[[ uiscreen mainscreen] bounds]];    // override point for  Customization after application launch.    self.window.backgroundcolor  = [UIColor whiteColor];    [self.window makeKeyAndVisible];         mainviewcontroller *mainvc = [[mainviewcontroller  alloc] init];    uinavigationcontroller *navvc = [[ uinavigationcontroller alloc] initwithrootviewcontroller:mainvc];     Self.window.rootviewcontroller  = navvc; &nbsP;  [mainvc release];    [navvc release];    [_ Window release];        return yes;} -  (void) dealloc{    [_window release];    [super  Dealloc];} -  (void) applicationwillresignactive: (uiapplication *) application{    //  Sent when the application is about to move from active to  inactive state. This can occur for certain types of  temporary interruptions  (such as an incoming phone call or sms  message)  or when the user quits the application and it  begins the transition to the background state.    //  Use this method to pause Ongoing tasks, disable timers, and throttle down opengl es frame  rates. games should use this method to pause the game.} -  (void) Applicationdidenterbackground: (uiapplication *) application{    //  Use this method to release shared resources, save user data,  invalidate timers, and store enough application state information  to restore your application to its current state in case  it is terminated later.     // If your  application supports background execution, this method is called  Instead of applicationwillterminate: when the user quits.} -  (void) Applicationwillenterforeground: (uiapplication *) application{    // called as part of the transition  From the background to the inactive state; here you can undo  many of the changes made on entering the background.} -  (void) applicationdidbecomeactive: (uiapplication *) application{    //  restart any tasks that were paused  (or not yet started)   while the application was inactive. if the application was  Previously in the background, optionally refresh the user interface.} -  (void) Applicationwillterminate: (uiapplication *) application{    // called  when the application is about to terminate. save data if  appropriate. see also&nbsP;applicationdidenterbackground:.} @end

MainViewController.h

#import <UIKit/UIKit.h> @interface Mainviewcontroller:uiviewcontroller@property (nonatomic, retain) Nsmutablearray *array; @end

Mainviewcontroller.m

#import   "MainViewController.h" @interface  MainViewController  () <uitableviewdatasource   UITableViewDelegate> @property   (nonatomic , retain) uitableview *tableview;   //property @end@implementation mainviewcontroller-  (ID) initwithnibname: (nsstring *) NibNameOrNil  bundle: (nsbundle *) nibbundleornil{    self = [super  initwithnibname:nibnameornil bundle:nibbundleornil];    if  (self)  {         // Custom initialization         self.array = [nsmutablearray arraywithobjects:@ "Zheng Haowen",  @ "Wu Yue",  @ "I",  @ "Peng Yu",  @ "Gao full",  @ "Hu Han",  @ "Chen Fei",  @ "Zhaoqingqing",  @ "Qinghai Pool",  @ "Jinqingmin",  @ "Xie Chrysanthemum",  @ "Lu Junting",  @ "Huangsun",  @ "Ying Yingpeng",  @ "Meng Chaoxu",  @ "Dong",  @ "Cheng Rong",  @ "Zhang Camry",  @ "Zhaolin",  @ "Southland Forest",  @ "Wang June",  @ "Zhengerniu Hongyu",  @ "LiuSuchh ",  nil];    }    return self;} -  (void) dealloc{    [_tableview release];    [_array  Release];    [super dealloc];} -  (void) viewdidload{    [super viewdidload];    // do  any additional setup after loading the view.     self.title = @ "Contacts";     self.tableview = [[uitableview alloc]  initwithframe:cgrectmake (0, 0, 320, 480)  style:UITableViewStylePlain];     self.tableview.datasource = self;    self.tableview.delegate =  self;    [self.view addsubview:self.tableview ];    [ self.tableview release];        //Open TableView Edit mode//  & Nbsp; [tableview setediting:yes animated:yes];    //system provides an edit button      self.navigationitem.rightbarbuttonitem = self.editbuttonitem;} -  (BOOL) TableView: (uitableview *) Tableview caneditrowatindexpath: (nsindexpath *) Whether indexpath//{//    //can be edited//    if  (indexpath.row == 0 )  {//        return YES;//    }//     return NO;//}-  (void) TableView: (uitableview *) tableview  Moverowatindexpath: (nsindexpath *) Sourceindexpath toindexpath: (nsindexpath *) Destinationindexpath{    //1. Get to the data source you want to move     nsstring *str = &NBSP;[[SELF.ARRAY&NBSP;OBJECTATINDEX:SOURCEINDEXPATH.ROW]&NBSP;RETAIN];&NBSP;&NBSP;&NBSP;&NBSP;//2. The data is removed from the original position &NBSP;&NBSP;&NBSP;&NBSP;[SELF.ARRAY&NBSP;REMOVEOBJECTATINDEX:&NBSP;SOURCEINDEXPATh.row];    //3. Put the data in the final position     [self.array insertObject:str  ATINDEX:DESTINATIONINDEXPATH.ROW];&NBSP;&NBSP;&NBSP;&NBSP;//4. Memory management     [str release];} Click the Edit button and the system will call this method-  (void) setediting: (BOOL) editing animated: (BOOL) animated{    [ Super setediting:editing animated:animated];    nslog (@ "edtiting:%d,animated:%d" , editing,animated);     //Use the Edit button of the system    change the editing state of the TableView     [ Self.tableview setediting:editing animated:animated];} Change the cell's edit style (insert/delete)-  (Uitableviewcelleditingstyle) TableView: (uitableview *) tableview  Editingstyleforrowatindexpath: (nsindexpath *) indexpath{    return  uitableviewcelleditingstyleinsert;    }//When you click the Delete button, the system calls the Protocol method-  (void) TableView: ( uitableview *) Tableview commiteditingstyle: (uitableviewcelleditingstyle) EditIngstyle forrowatindexpath: (nsindexpath *) indexpath{    //judgment (Delete/Add) of the test operation      if  (Uitableviewcelleditingstyledelete == editingstyle)  {         //before deleting a cell, be sure to delete the corresponding content in the data source          [self.array removeobjectatindex:indexpath.row];        // But delete the time, write delete the corresponding cell   parameter 1; indexpath array to be removed    parameter 2: Animate when you want to delete row          NSArray *array = [NSArray arrayWithObjects:indexPath, nil];         [tableView deleteRowsAtIndexPaths:array  Withrowanimation:uitableviewrowanimationright];    }    else if   (Uitableviewcelleditingstyleinsert == editingstyle) {         nsstring *name = @ "SSSs ";        [self.array addobject:name];          nsarray *array = [nsarray arraywithobjects:indexpath,  nil];        [tableView insertRowsAtIndexPaths:array  withrowanimation:uitableviewrowanimationleft];    }    }-  ( Nsinteger) TableView: (uitableview *) Tableview numberofrowsinsection: (Nsinteger) section{     return [self.array count];} -  (uitableviewcell *) TableView: (uitableview *) Tableview cellforrowatindexpath: (NSIndexPath  *) indexpath{    static nsstring *str = @ "AAA";     UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:str];     if  (Cell == nil)  {     &nbsP;  cell = [[[uitableviewcell alloc] initwithstyle:uitableviewcellstylesubtitle  reuseIdentifier:str] autorelease];             }    cell.textlabel.text = [self.array objectatindex: indexpath.row];    cell.detailtextlabel.text = @ "class name";     Return cell;} -  (void) TableView: (uitableview *) Tableview didselectrowatindexpath: (nsindexpath *) Indexpath//{//    nslog (@ "%@",  [self.array objectatindex:indexpath.row]);//}//-   (Nsinteger) Numberofsectionsintableview: (uitableview *) Tableview//{//    return  5;//}//-  (nsstring *) TableView: (uitableview *) Tableview titleforheaderinsection: ( Nsinteger) section//{//    return [nsstring stringwithformat:@ "section:%d", section];//}//-  (CGFLOAT) TableView: (uitableview *) Tableview heightforheaderinsection: (Nsinteger) section//{//     return 25;//}-  (void) didreceivememorywarning{    [super  Didreceivememorywarning];    // dispose of any resources that  can be recreated.} /* #pragma  mark - navigation// in a storyboard-based application, you  will often want to do a little preparation before  navigation-  (void) Prepareforsegue: (uistoryboardsegue *) Segue sender: (ID) sender{     // Get the new view controller using [segue  Destinationviewcontroller].    // pass the selected object to  the new view controller.} */@end

This article is from "Xiao Liu _blog" blog, please be sure to keep this source http://liuyafang.blog.51cto.com/8837978/1550984

UITableViewCell edit, move, add or delete