IOS UItableView editable

IOS UItableView editable

//

// RootViewController. m

// TableViewEdit

//

// Created by Duba on 15-5-07.

// Copyright (c) 2015 Dubai. All rights reserved.

//

 

# Import "RootViewController. h"

 

@ Interface RootViewController ()

 

{

 

 

NSMutableArray * _ dataArray;

UITableView * _ tableView;

NSMutableArray * _ arr1;

 

}

@ End

 

@ Implementation RootViewController

 

-(Void) dealloc

{

[_ DataArray release];

[_ TableView release];

[Super dealloc];

}

-(Id) initWithNibName :( NSString *) nibNameOrNil bundle :( NSBundle *) nibBundleOrNil

{

Self = [super initWithNibName: nibNameOrNil bundle: nibBundleOrNil];

If (self ){

// Custom initialization

}

Return self;

}

 

-(Void) viewDidLoad

{

[Super viewDidLoad];

// Do any additional setup after loading the view.

 

// Asia

_ Arr1 = [NSMutableArray arrayWithObjects: @ "China", @ "Singapore", @ "Mongolia", nil];

// Europe

NSMutableArray * arr2 = [NSMutableArray arrayWithObjects: @ "USA", @ "Canada", @ "Brazil", nil];

 

// Europe

NSMutableArray * arr3 = [NSMutableArray arrayWithObjects: @ "UK", @ "France", @ "Germany", nil];

 

// Add a small array of three States to a large number Group

_ DataArray = [[NSMutableArray alloc] initWithObjects: _ arr1, arr2, arr3, nil];

 

//// Add a button

// UIBarButtonItem * edite = [[UIBarButtonItem alloc] initWithTitle: @ "edit" style :( UIBarButtonItemStylePlain) target: self action: @ selector (didClickEditButtonitem :)];

// Self. navigationItem. rightBarButtonItem = edite;

// [Edite release];

 

 

// Use the built-in controller to edit the buttonitem.

Self. navigationItem. rightBarButtonItem = self. editButtonItem; // contains an attribute.

 

_ TableView = [[UITableView alloc] initWithFrame: self. view. bounds style :( UITableViewStyleGrouped)];

[Self. view addSubview: _ tableView];

_ TableView. dataSource = self;

_ TableView. delegate = self;

_ TableView. separatorColor = [UIColor greenColor];

// Self. editButtonItem. title = @ "edit ";

 

}

 

// Controller rewrite Method

-(Void) setEditing :( BOOL) editing animated :( BOOL) animated

{

[Super setEditing: editing animated: animated];

// NSLog (@ "% d", editing );

[_ TableView setEditing: editing animated: animated];

 

Self. editButtonItem. title = editing? @ "Complete": @ "edit ";

 

}

 

 

//// Response to the button and enter the editing status

//-(Void) didClickEditButtonitem :( UIBarButtonItem *) buttonitem

//{

//

/// TableView enters the editing status

// If ([buttonitem. title isEqualToString: @ "edit"]) {

// [_ TableView setEditing: YES animated: YES];

// Buttonitem. title = @ "done ";

//} Else {

//

// [_ TableView setEditing: NO animated: YES];

// Buttonitem. title = @ "edit ";

//

//}

/// [_ TableView setEditing: YES animated: YES];

//

//

//

//}

 

// Set which rows of tableView can be edited. The default value is YES.

-(BOOL) tableView :( UITableView *) tableView canEditRowAtIndexPath :( NSIndexPath *) indexPath

{

 

 

Return YES;

 

 

}

 

// Set the tableViewCell editing Style

-(UITableViewCellEditingStyle) tableView :( UITableView *) tableView editingStyleForRowAtIndexPath :( NSIndexPath *) indexPath

{

Return UITableViewCellEditingStyleDelete; // The default value is Delete.

// Return UITableViewCellEditingStyleInsert; // insert

 

 

 

 

 

}

 

// Complete editing

-(Void) tableView :( UITableView *) tableView commitEditingStyle :( UITableViewCellEditingStyle) editingStyle forRowAtIndexPath :( NSIndexPath *) indexPath

{

 

 

// Delete data,

// NSMutableArray * onegroup = _ dataArray [indexPath. section];

// [Onegroup removeObjectAtIndex: indexPath. row];

////

// NSArray * aeeay = [NSArray arrayWithObjects: indexPath, nil];

// NSArray * aeeay = @ [indexPath]; // same as the following

//

// Delete (n rows can be deleted)

If (editingStyle = UITableViewCellEditingStyleDelete ){

 

 

NSMutableArray * onegroup = _ dataArray [indexPath. section];

// If there is only one row left in the partition, delete the entire partition.

If (onegroup. count = 1 ){

[_ DataArray removeObject: onegroup]; // deletes data from a partition.

 

 

// Tableview Delete section

NSIndexSet * set = [NSIndexSet indexSetWithIndex: indexPath. section];

[_ TableView deleteSections: set withRowAnimation :( UITableViewRowAnimationLeft)];

 

 

} Else {

// Delete a row of data

[Onegroup removeObjectAtIndex: indexPath. row];

// NSArray * arr = [NSArray arrayWithObjects: indexPath, nil];

[TableView deleteRowsAtIndexPaths: @ [indexPath] withRowAnimation :( UITableViewRowAnimationAutomatic)];

}

 

// [TableView deleteRowsAtIndexPaths: @ [indexPath] withRowAnimation :( UITableViewRowAnimationAutomatic)]; // crash. Only rows are deleted. No data is deleted.

//// Three pieces of data are displayed on two rows (data must be deleted first)

 

}

 

 

// Add

If (editingStyle = UITableViewCellEditingStyleInsert ){

NSMutableArray * onegroup = _ dataArray [indexPath. section];

If (onegroup. count! = 0 ){

[TableView insertRowsAtIndexPaths: @ [indexPath] withRowAnimation :( UITableViewRowAnimationBottom)];

// _ Arr1 = [[NSMutableArray alloc] initWithObjects: @ "Beijing", nil];

[Onegroup addObject: @ "Beijing"];

_ DataArray = [[NSMutableArray alloc] initWithObjects: onegroup, nil];

[_ TableView reloadData];

NSLog (@ "cannot be added ");

 

}

 

}

 

 

 

 

 

}

 

 

// 2 set whether tableview can be moved

 

-(BOOL) tableView :( UITableView *) tableView canMoveRowAtIndexPath :( NSIndexPath *) indexPath

{

 

 

Return YES;

 

 

 

 

 

}

 

// 2. Complete the movement (data is processed by yourself)

 

-(Void) tableView :( UITableView *) tableView moveRowAtIndexPath :( NSIndexPath *) sourceIndexPath toIndexPath :( NSIndexPath *) destinationIndexPath

{

// Process data

// Find and obtain the corresponding group

NSMutableArray * onegroup = _ dataArray [sourceIndexPath. section];

// First retain the crude element of the medicated diet (to prevent problems during deletion)

NSString * name = [onegroup [sourceIndexPath. row] retain]; // find the element jia 1

// Delete an element

[Onegroup removeObject: name];

// Insert to the specified position

[Onegroup insertObject: name atIndex: destinationIndexPath. row];

[Name release];

 

 

}

 

// Set whether the cell can be moved to the scheduled destination propose (proxy)

 

-(NSIndexPath *) tableView :( UITableView *) tableView targetIndexPathForMoveFromRowAtIndexPath :( NSIndexPath *) sourceIndexPath toProposedIndexPath :( NSIndexPath *) proposedDestinationIndexPath

{

// If the range to be moved is in the same section, it can be moved.

If (sourceIndexPath. section = proposedDestinationIndexPath. section ){

Return proposedDestinationIndexPath; // return the destination

 

 

}

 

Return sourceIndexPath; // do not move across regions

// Return proposedDestinationIndexPath; // you can move

 

 

 

 

 

 

}

-(NSInteger) numberOfSectionsInTableView :( UITableView *) tableView

{

 

 

// Return 3;

Return [_ dataArray count];

 

 

}

 

-(NSInteger) tableView :( UITableView *) tableView numberOfRowsInSection :( NSInteger) section

{

// The three shards are 10, 15, and 20 rows respectively.

// If (section = 0 ){

// Return 10;

//}

// If (section = 1 ){

// Return 15;

//}

 

// Return 10;

NSArray * array = _ dataArray [section];

Return [array count];

 

 

}

 

 

-(UITableViewCell *) tableView :( UITableView *) tableView cellForRowAtIndexPath :( NSIndexPath *) indexPath

{

// Static NSString * identifier = @ "cell ";

// 1 retrieve the cell object from the queue

Static NSString * identifier = @ "cell ";

UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier: identifier];

 

// 2 re-create if no

 

If (cell = nil ){

Cell = [[[UITableViewCell alloc] initWithStyle :( UITableViewCellStyleDefault) reuseIdentifier: identifier] autorelease];

 

}

/// 3 set the cell according to section and row to display the corresponding content.

// Cell. textLabel. text = [NSString stringWithFormat: @ "partition: % ld row: % ld", indexPath. section, indexPath. row];

//// (In this case, the cell may be created by a new one, which may be obtained from the queue)

/// 4 return the set cell object to tabelView

NSArray * array = _ dataArray [indexPath. section];

Cell. textLabel. text = array [indexPath. row];

 

Return cell;

 

 

}

 

 

//// Set the header title for each partition

//

//-(NSString *) tableView :( UITableView *) tableView titleForHeaderInSection :( NSInteger) section

//{

//// Display 1 2 3

// Return [NSString stringWithFormat: @ "% ld", section + 1]; // The index starts from 0.

//

//

//}

 

// All

//-(NSArray *) sectionIndexTitlesForTableView :( UITableView *) tableView

//{

//

// Return @ [@ "1", @ "2", @ "3"];

//

//}

 

 

 

//// Set the Row Height

//-(CGFloat) tableView :( UITableView *) tableView heightForRowAtIndexPath :( NSIndexPath *) indexPath

//{

// If (indexPath. section = 0 ){

// Return 80;

//}

// If (indexPath. section = 1 ){

// Return 150;

//}

// Return 60;

//

//}

//

// Check whether the cell is selected

-(Void) tableView :( UITableView *) tableView didSelectRowAtIndexPath :( NSIndexPath *) indexPath

{

NSLog (@ "partition: % ld rows: % ld", indexPath. section, indexPath. row );

}

 

 

 

-(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