Modify cells-delete, insert, move (IOS)

Insert and delete timings:

client:setEditing:animated:-----> Set into table View

Table View----> Delegate: (<UITableViewDelegate>) Tableview:editingstyleforrowatindexpath: method to set the cell edit icon

method to set the cell edit icon

Table View----> Data source: (<UITableViewDataSource>) TableView:commiEditingStyle:forRowAtIndexPath message Implementation Delete or insert processing

This is accomplished by clicking the Insert or delete control.

Delete and add cells to reload the table view number by [Self.tableview Reloaddata]!!

Mobile timing:

client:setEditing:animated:-----> Set into table View

Table View---> Delegate: (<UITableViewDelegate>) Tableview:editingstyleforrowatindexpath: method to set the cell edit icon

method to set the cell edit icon

Table View----> Data sources: (<UITableViewDataSource>) Tableview:canmoverowatindexpath messages allow data sources to move cells

Table View----> Delegate: (<UITableViewDelegate>) TableView:moveRowAtIndexPath:toIndexPath: Method Reorder Listteams

The party user drags the sort control to implement.

ViewController.h:

#import <UIKit/UIKit.h> @interface Viewcontroller:uiviewcontroller<uitextfielddelegate, Uitableviewdatasource,uitableviewdelegate> @property (Weak, nonatomic) Iboutlet Uinavigationitem *navgationItem;@ Property (weak, nonatomic) Iboutlet UITableView *tableview; @property (Strong, nonatomic) Iboutlet Uitextfield *txtfield; @property (nonatomic, strong) Nsmutablearray *listteams; @end

VIEWCONTROLLER.M:

#import "ViewController.h" @interface Viewcontroller () @end @implementation viewcontroller-(void) viewdidload {[Super V      Iewdidload]; Set the navigation bar//Editbuttonitem is already defined in the view controller, Self.editbuttonitem can get the pointer//Rightbarbuttonitem to the right button of the navigation bar Self.navgationite    M.rightbarbuttonitem = Self.editbuttonitem;        Self.navgationItem.title = @ "cell insertion and deletion";    Set cell text Box Self.txtField.hidden = YES;        Self.txtField.delegate = self;    Assigns the current view controller to the delegate and data source of the table view self.tableView.delegate = self;        Self.tableView.dataSource = self;    Self.listteams = [[Nsmutablearray alloc] initwithobjects:@ "Heilongjiang", @ "Jilin", @ "Liaoning", nil];    }-(void) didreceivememorywarning {[Super didreceivememorywarning]; Dispose of any resources the can be recreated.} #pragma the mark-Uiviewcontroller life cycle method, which responds to changes in the editing state of the view and determines whether it can be entered in edit state!        -(void) setediting: (BOOL) editing animated: (BOOL) animated{[Super setediting:editing animated:animated];    [Self.tableview setediting:editing Animated:yes]; if (editing) {Self.txtField.hidden = NO;    } else {self.txtField.hidden = YES; }} #pragma mark--Uitableviewdatasource Data Source protocol Method-(Nsinteger) TableView: (UITableView *) TableView numberofrowsinsection :(Nsinteger) section{//need to add a blank cell return [self.listteams count] + 1;} -(UITableViewCell *) TableView: (UITableView *) TableView Cellforrowatindexpath: (Nsindexpath *) indexpath{static Nsstri    ng *cellidentifier = @ "Cell";        BOOL B_addcell;    Determine if the cell needs to be inserted if (Indexpath.row = = self.listTeams.count) {B_addcell = YES;    } else {B_addcell = NO;    }//Build reuse cell UITableViewCell *cell = [TableView dequeuereusablecellwithidentifier:cellidentifier]; if (cell = = nil) {cell = [[UITableViewCell alloc] Initwithstyle:uitableviewcellstyledefault reuseidentifier:cellid    Entifier];  } if (!b_addcell) {//Ordinary cell cell.accessorytype = Uitableviewcellaccessorydisclosureindicator; Set to RIGHT arrow Cell.textLabel.text= [Self.listteams ObjectAtIndex:indexPath.row];        Get text} else{//newly inserted cell//The part can be initialized only when the insert operation is made!        Self.txtField.frame = CGRectMake (10, 0, 300, 44);        Self.txtField.text = @ ""; [Cell.contentview AddSubview:self.txtField]; Implement a text box injection} return cell; #pragma mark-Uitableviewdelegate entrustment Agreement Method-(Uitableviewcelleditingstyle) TableView: (UITableView *) TableView  Editingstyleforrowatindexpath: (Nsindexpath *) indexpath{//Edit icon Set//delete or add if (Indexpath.row = = [Self.listteams    Count]) {return uitableviewcelleditingstyleinsert;        } else{return uitableviewcelleditingstylenone;//The reorder control exists at the same time.    return uitableviewcelleditingstyledelete; }}-(BOOL) TableView: (UITableView *) TableView Shouldhighlightrowatindexpath: (Nsindexpath *) indexpath{if (    Indexpath.row = = [Self.listteams count]) {return NO;    In addition to the last line, all highlight} else{return YES; }}-(CGFloat) TableView: (UITableView *) TableView HeightforrowaTindexpath: (Nsindexpath *) indexpath{return 50;} -(BOOL) TableView: (UITableView *) TableView Canmoverowatindexpath: (Nsindexpath *) indexpath{return YES; -(void) TableView: (UITableView *) TableView Moverowatindexpath: (Nsindexpath *) Sourceindexpath Toindexpath: ( Nsindexpath *) destinationindexpath{//Get target nsstring *stringtomove = [Self.listteams objectatindex:sourceindexpath.    Row];    Remove [Self.listteams RemoveObjectAtIndex:sourceIndexPath.row] from the target location; Re-target location insert data [Self.listteams insertobject:stringtomove atIndex:destinationIndexPath.row];} #pragma mark-Uitableviewdatasource protocol Method-(void) TableView: (UITableView *) TableView Commiteditingstyle: ( Uitableviewcelleditingstyle) Editingstyle Forrowatindexpath: (Nsindexpath *) indexpath{if (EditingStyle = =        Uitableviewcelleditingstyledelete) {[Self.listteams removeObjectAtIndex:indexPath.row]; [Self.tableview Deleterowsatindexpaths:[nsarray Arraywithobject:indexpath] Withrowanimation:  Uitableviewrowanimationfade];      [Self.tableview Reloaddata];    //?? } else if (Editingstyle = = Uitableviewcelleditingstyleinsert) {//At least added to Listteams//Add first            Data, and then display [Self.listteams insertObject:self.txtField.text atindex:[self.listteams Count]]; [Self.tableview Insertrowsatindexpaths:[nsarray Arraywithobject:indexpath] Withrowanimation:            Uitableviewrowanimationfade];        Reload the data in the table [Self.tableview Reloaddata]; }} #pragma mark-Uitextfielddelegate delegate method, 1. Turn off the keyboard 2. Avoid keyboard occlusion text box-(BOOL) Textfieldshouldreturn: (Uitextfield *) textfield{/    /recovery keyboard [TextField Resignfirstresponder]; return YES;} -(void) textfielddidbeginediting: (Uitextfield *) textfield{UITableViewCell *cell = (UITableViewCell *) [[TextField Supe    Rview] Superview]; [Self.tableview setcontentoffset:cgpointmake (0.0, CELL.FRAME.ORIGIN.Y) Animated:yes];} @end

Modify cells-delete, insert, move (IOS)