iOS UItableView可以编辑

来源：互联网发布：怎么制作淘宝客小程序编辑：程序博客网时间：2024/05/23 16:19

// RootViewController.m

// TableViewEdit

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

#import "RootViewController.h"

@interface RootViewController ()

{

NSMutableArray *_dataArray;

UITableView *_tableView;

NSMutableArray *_arr1;

}

@end

@implementation RootViewController

- (void)dealloc

{

[_dataArray release];

[_tableView release];

[superdealloc];

}

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

{

self = [superinitWithNibName:nibNameOrNil bundle:nibBundleOrNil];

if (self) {

// Custom initialization

}

return self;

}

- (void)viewDidLoad

{

[superviewDidLoad];

// Do any additional setup after loading the view.

//亚洲

_arr1 = [NSMutableArrayarrayWithObjects:@"中国",@"新加坡",@"蒙古",nil];

//欧洲

NSMutableArray *arr2 = [NSMutableArrayarrayWithObjects:@"美国",@"加拿大",@"巴西",nil];

//欧洲

NSMutableArray *arr3 = [NSMutableArrayarrayWithObjects:@"英国",@"法国",@"德国",nil];

//把三个州的小数组添加到大数组里

_dataArray = [[NSMutableArrayalloc]initWithObjects:_arr1,arr2,arr3,nil];

// //加一个按钮

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

// self.navigationItem.rightBarButtonItem = edite;

// [edite release];

//使用controller自带的编辑buttonitem,直接用不用创建对象

self.navigationItem.rightBarButtonItem =self.editButtonItem;//自带一个属性

_tableView = [[UITableViewalloc] initWithFrame:self.view.boundsstyle:(UITableViewStyleGrouped)];

[self.viewaddSubview:_tableView];

_tableView.dataSource =self;

_tableView.delegate =self;

_tableView.separatorColor = [UIColorgreenColor];

//self.editButtonItem.title = @"编辑";

}

//controller的重写方法

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

{

[supersetEditing:editing animated:animated];

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

[_tableViewsetEditing:editing animated:animated];

self.editButtonItem.title = editing?@"完成":@"编辑";

}

////按钮响应,进入编辑状态

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

//{

// //tableView进入编辑状态

// if ([buttonitem.title isEqualToString:@"编辑"]) {

// [_tableView setEditing:YES animated:YES];

// buttonitem.title = @"完成";

// }else{

// [_tableView setEditing:NO animated:YES];

// buttonitem.title = @"编辑";

// }

// //[_tableView setEditing:YES animated:YES];

//}

//设置 tableView哪行可以编辑,默认是YES

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

{

return YES;

}

//设置tableViewCell编辑样式

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

{

returnUITableViewCellEditingStyleDelete;//默认是删除

// return UITableViewCellEditingStyleInsert;//插入

}

//完成编辑

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

{

//删数据,

// NSMutableArray *onegroup = _dataArray[indexPath.section];

// [onegroup removeObjectAtIndex:indexPath.row];

////

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

// NSArray *aeeay = @[indexPath];//同下面的同等

//删除(可以是n行)

if (editingStyle ==UITableViewCellEditingStyleDelete) {

NSMutableArray *onegroup = _dataArray[indexPath.section];

//如果分区中只剩一行,就删整个分区

if (onegroup.count ==1) {

[_dataArrayremoveObject:onegroup];//删除某个分区的数据

//tableview删除section

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

[_tableViewdeleteSections:set withRowAnimation:(UITableViewRowAnimationLeft)];

}else {

//删除某行数据

[onegroupremoveObjectAtIndex:indexPath.row];

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

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

}

// [tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:(UITableViewRowAnimationAutomatic)];//crash.只删除行.没有删除数据

// //三条数据显示在两行上(得先删数据)

}

//添加

if (editingStyle ==UITableViewCellEditingStyleInsert) {

NSMutableArray *onegroup = _dataArray[indexPath.section];

if (onegroup.count !=0) {

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

//_arr1 = [[NSMutableArray alloc] initWithObjects:@"北京", nil];

[onegroupaddObject:@"北京"];

_dataArray = [[NSMutableArrayalloc] initWithObjects:onegroup,nil];

[_tableViewreloadData];

NSLog(@"添加不上");

}

//2设置tableview能否移动

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

{

return YES;

}

//2完成移动(数据自己来处理移动)

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

{

//处理数据

//找获取对应的分组

NSMutableArray *onegroup = _dataArray[sourceIndexPath.section];

//先将药膳粗的元素retain(防止删除时出问题)

NSString *name = [onegroup[sourceIndexPath.row]retain];//找元素jia 1

//删除元素

[onegroupremoveObject:name];

//插入到指定位置

[onegroupinsertObject:name atIndex:destinationIndexPath.row];

[namerelease];

}

//设置cell能否移动到计划的目的地propose(代理)

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

{

//如果移动的范围是在一个同一个区section可以移动

if (sourceIndexPath.section == proposedDestinationIndexPath.section) {

return proposedDestinationIndexPath;//返回目的地

}

return sourceIndexPath;//不让跨区移动

//return proposedDestinationIndexPath;//可以移动

}

- (NSInteger )numberOfSectionsInTableView:(UITableView *)tableView

{

//return 3;

return [_dataArraycount];

}

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

{

//3个分区分别为 10 15 20 行

// 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从队列中取出cell对象

static NSString *identifier =@"cell";

UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:identifier];

//2如果没有就重新创建

if (cell == nil) {

cell= [[[UITableViewCellalloc] initWithStyle:(UITableViewCellStyleDefault)reuseIdentifier:identifier] autorelease];

}

// //3根据section,row,对cell进行设置,显示相应的内容.

// cell.textLabel.text = [NSString stringWithFormat:@" 分区:%ld 行:%ld",indexPath.section,indexPath.row];

// //(此时的cell可能是新创建按的,可能是从队列中取来的)

// //4将设置完的cell对象返回给tabelView

NSArray *array = _dataArray[indexPath.section];

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

return cell;

}

////给每个分区设置头部标题

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

//{

// //分别显示 1 2 3

// return [NSString stringWithFormat:@"%ld",section+1];//索引是从0开始的

//}

//所有

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

//{

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

//}

////设置行高

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

//{

// if (indexPath.section == 0) {

// return 80;

// }

// if (indexPath.section == 1) {

// return 150;

// }

// return 60;

//}

//检测cell被选中

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

{

NSLog(@" 分区:%ld行数:%ld",indexPath.section ,indexPath.row);

}

- (void)didReceiveMemoryWarning

{

[superdidReceiveMemoryWarning];

// 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

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