Tableviewcontroller Add, delete, move

#import "RootTableViewController.h"

@interface roottableviewcontroller ()

{

Uitableviewcelleditingstyle _style;

}

@property(nonatomic, strong)Nsmutablearray *array;

@end

@implementation Roottableviewcontroller

-(ID) Initwithstyle: (uitableviewstyle) style

{

Self = [super Initwithstyle:style];

if (self) {

Custom initialization

self. Array=[nsmutablearray array];

}

return self;

}

-(void) Viewdidload

{

[Super Viewdidload];

//Save some data in the array

For (int i=0; i<3; i++) {

Nsmutablearray *temparray=[nsmutablearray array];

For (int j=0; j<5; j + +) {

[Temparray addobject:[nsstring stringwithformat:@ " Group%d , section %d Individual ", i,j]];

}

[Self. array Addobject:temparray];

}

Set up proxy

self. TableView. DataSource=self;

self. TableView. Delegate=self;

add two Barbutton on both sides of the navigation bar

Uibarbuttonitem *bar=[[uibarbuttonitem alloc] initwithtitle:@ edit style:( Uibarbuttonitemstyledone) Target:self Action:@selector(baraction:)];

self. Navigationitem. Leftbarbuttonitem=bar;

Uibarbuttonitem *bar1=[[uibarbuttonitem alloc] initwithtitle:@ " add " style:( Uibarbuttonitemstyledone) Target:self Action:@selector(barAction1:)];

self. Navigationitem. Rightbarbuttonitem=bar1;

}

Barbutton Editing Events

-(void) Baraction: (uibarbuttonitem *) Sender

{

_style=uitableviewcelleditingstyledelete;

BOOL flag=self. TableView. editing;

[self. TableView setediting:!flag animated:YES];

}

Barbutton Adding events

-(void) BarAction1: (uibarbuttonitem *) Sender

{

_style=uitableviewcelleditingstyleinsert;

BOOL flag=self. TableView. editing;

[self. TableView setediting:!flag animated:YES];

}

Set which lines can be edited (all by default )

-(BOOL) TableView: (uitableview *) TableView Caneditrowatindexpath: (nsindexpath *) Indexpath

{

return YES;

}

Determine Edit Status (delete | add )

-(Uitableviewcelleditingstyle) TableView: (uitableview *) TableView Editingstyleforrowatindexpath: ( Nsindexpath *) Indexpath

{

return _style;

}

Submit edits

-(void) TableView: (uitableview *) TableView Commiteditingstyle: (uitableviewcelleditingstyle) Editingstyle Forrowatindexpath: (nsindexpath *) indexpath

{

if(editingstyle==uitableviewcelleditingstyledelete)

{

// Delete

[Self. Array[indexpath. Section]Removeobjectatindex:indexpath. Row];

[TableView deleterowsatindexpaths:@[indexpath] withrowanimation:( Uitableviewrowanimationleft)];

}

Else

{

// add

nsstring *s=@ " test data ";

[Self. Array[indexpath. Section]insertobject:s atindex:indexpath. row+1];

Nsindexpath *index=[nsindexpath indexpathforrow: Indexpath.row+1 insection: Indexpath.section];

[TableView insertrowsatindexpaths:@[index] withrowanimation:( Uitableviewrowanimationright)];

}

}

Which rows can be moved

-(BOOL) TableView: (uitableview *) TableView Canmoverowatindexpath: (nsindexpath *) Indexpath

{

return YES;

}

Complete the move

-(void) TableView: (uitableview *) TableView Moverowatindexpath: (nsindexpath *) Sourceindexpath Toindexpath: (nsindexpath *) destinationindexpath

{

Assigning values First

ID obj= self. Array[sourceindexpath. Section][sourceindexpath. Row];

then delete

[Self. Array[sourceindexpath. Section] Removeobjectatindex:sourceindexpath. Row];

last added

[Self. Array[destinationindexpath. Section]insertobject:obj atindex:destinationindexpath. Section];

}

Check out of Bounds

-(Nsindexpath *) TableView: (uitableview *) TableView Targetindexpathformovefromrowatindexpath: ( Nsindexpath *) Sourceindexpath Toproposedindexpath: (nsindexpath *) Proposeddestinationindexpath

{

if (Sourceindexpath. Section!=proposeddestinationindexpath. Section )

{

return sourceindexpath;

}

Else

{

return proposeddestinationindexpath;

}

}

Tableviewcontroller Add, delete, move