UItableView中编辑,删除,移动学习笔记

////  RootViewController.m//  UI10TableViewController////  Created by lanou3g on 15/8/20.//  Copyright (c) 2015年 Yuxiang. All rights reserved.//#import "RootViewController.h"#import "Person.h"@interface RootViewController ()<UITableViewDataSource,UITableViewDelegate>@property(nonatomic,retain)UITableView * tableView;@property(nonatomic,retain)NSMutableDictionary * dataDictionary;@property(nonatomic,retain)NSMutableArray * dataArray;@property(nonatomic,assign)BOOL  isEdit;@end@implementation RootViewControllerstatic NSString * identifier = @"My";-(instancetype)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil{    if(self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil]){        NSString * path = [[NSBundle mainBundle]pathForResource:@"StudentInformation.plist" ofType:nil];        //最外层字典        _dataDictionary = [NSMutableDictionary dictionaryWithContentsOfFile:path];        //所有key值(分组名)        _dataArray = [NSMutableArray arrayWithArray:[_dataDictionary allKeys]];        //排序        [_dataArray sortUsingSelector:@selector(compare:)];        NSLog(@"%ld",_dataArray.count);        //添加编辑按钮        UIBarButtonItem * left= [[UIBarButtonItem alloc]initWithTitle:@"编辑" style:UIBarButtonItemStylePlain target:self action:@selector(edittableView:)];        self.navigationItem.leftBarButtonItem = left;        //添加编辑按钮        //系统为我们提供一个编辑按钮,同时也提供了编辑方法,我们可以不用重写属性和方法        self.navigationItem.rightBarButtonItem= self.editButtonItem;        //默认显示edit        self.editButtonItem.title = @"编辑";            }    return self;}#pragma mark -----tableView编辑//(系统给的方法)-(void)setEditing:(BOOL)editing animated:(BOOL)animated{        _isEdit = NO;//左右按钮分开使用    //向父类发送消息    //在OC中,重写父类方法的时候,必须现象父类发送super消息,尤其是系统    [super setEditing:editing animated:animated];    [_tableView setEditing:editing animated:animated];//系统方法    //换title    self.navigationItem.rightBarButtonItem.title = editing?@"完成":@"编辑";    }#pragma mark --------tableView编辑//第一步:使用tableVIew处于编辑状态(自定义的)-(void)edittableView:(UIBarButtonItem *)sender{    _isEdit = YES;    //当按钮显示编辑的时候,我破门操作这个按钮    //1.tableView处于编辑状态    //2.按钮先显示为"完成"    //当按钮显示为完成状态时候,我们操作这个按钮    //1.让tableView处于非编辑状态    //2.按钮显示为"编辑"    if([sender.title isEqualToString:@"编辑"]){        sender.title = @"完成";        [_tableView setEditing:YES animated:YES];        sender.title = @"完成";    }    else{        [_tableView setEditing:NO animated:YES];        sender.title = @"编辑";    }}//第二步:指定哪些路径可以被编辑//-(BOOL)tableView:(UITableView *)tableView canEditRowAtIndexPath:(NSIndexPath *)indexPath{////    if(indexPath.row == 0){////        return NO;////    }//    return YES;//}//第三步:指定编辑样式(默认返回删除)//-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{////    UITableViewCellEditingStyleNone,////    UITableViewCellEditingStyleDelete,////    UITableViewCellEditingStyleInsert//    ////    if(indexPath.section < 3){////        return UITableViewCellEditingStyleDelete;////    }////////    else{////    return UITableViewCellEditingStyleInsert;////    }//    if(_isEdit == YES){//        return UITableViewCellEditingStyleDelete;//    }//    else{//        return UITableViewCellEditingStyleInsert;//    }//    //}//第四步:完成编辑//- (void)tableView:(UITableView *)tableView commitEditingStyle://(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath://(NSIndexPath *)indexPath{//#warning -在进行删除数据的时候,我们要先删除数据,在删除UI//    if(editingStyle == UITableViewCellEditingStyleDelete)//    {//        //        NSLog(@"删除");//        //1.操作数据//        //(全组的人)//        NSMutableArray * mutArray = [_dataDictionary objectForKey:_dataArray[indexPath.section]];//        //当分组里面只有一个人的时候,我们删除完之后,需要删除其所在分组//        if(mutArray.count == 1){//            //移除整组//            [_dataDictionary removeObjectForKey:_dataArray[indexPath.section]];//            [_dataArray removeObjectAtIndex:indexPath.section];//            //更新UI//            NSIndexSet * set = [NSIndexSet indexSetWithIndex:indexPath.section];//            //获取删除后的新UI//            [_tableView deleteSections:set withRowAnimation:UITableViewRowAnimationTop];//        }//        else{//        //        //具体人//        [mutArray removeObjectAtIndex:indexPath.row];//        //2.操作UI//        [_tableView deleteRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];//        }//        //    }//    else if (editingStyle == UITableViewCellEditingStyleInsert ){//        NSLog(@"添加");//        //创建字典//        NSDictionary * dic = [NSDictionary dictionaryWithObjectsAndKeys:@"东东哥",@"name",@"男",@"gender",@"东东哥.png",@"image", nil];//        //添加数据操作,(先找路径)//        //找到对应的分区//        NSMutableArray * array = [_dataDictionary objectForKey:_dataArray[indexPath.section]];//        //加入数组中,+1是加载点击的联系人后面//        [array insertObject:dic atIndex:indexPath.row + 1];//        //        //操作UI//        //创建添加的位置//        NSIndexPath * newPath = [NSIndexPath indexPathForRow:indexPath.row + 1 inSection:indexPath.section];//        //插入//        [_tableView insertRowsAtIndexPaths:@[newPath] withRowAnimation:UITableViewRowAnimationMiddle];//    }//}#pragma mark --------以上是tableView编辑#pragma mark --------以下是tableView移动//第二个方法-(BOOL)tableView:(UITableView *)tableView canMoveRowAtIndexPath:(NSIndexPath *)indexPath{    return YES;}//第三个方法- (void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath*)destinationIndexPath{        //获取移动的数据(sourceIndexPath指原地址)    NSMutableArray * array = [_dataDictionary objectForKey:_dataArray[sourceIndexPath.section]];        NSDictionary * dic = [array objectAtIndex:sourceIndexPath.row];//复制原来数据        //删除原数据    [array removeObjectAtIndex:sourceIndexPath.row];    //再插入    [array insertObject:dic atIndex:destinationIndexPath.row];    }//跨行移动//检测跨行移动方法-(NSIndexPath *)tableView:(UITableView *)tableView targetIndexPathForMoveFromRowAtIndexPath:(NSIndexPath *)sourceIndexPath toProposedIndexPath:(NSIndexPath *)proposedDestinationIndexPath{    //如果在一个分区我们就可以让他随便移动    if(sourceIndexPath.section == proposedDestinationIndexPath.section){        return proposedDestinationIndexPath;    }    else{        //否则,原路径回去        return sourceIndexPath;    }    }#pragma mark --------以下是tableView移动- (void)viewDidLoad {    [super viewDidLoad];    // Do any additional setup after loading the view.    //添加tableView    [self addTableView];        NSLog(@"%d",_isEdit);}#pragma mark ----tableView dataSouce//多少分区-(NSInteger)numberOfSectionsInTableView:(UITableView *)tableView{    return _dataArray.count;}//-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{    //取出当前分区的标题    NSString * key = _dataArray[section];    //取出当前分区的row的个数    NSArray * array = _dataDictionary[key];    return array.count;}//设置分区头-(NSString *)tableView:(UITableView *)tableView titleForHeaderInSection:(NSInteger)section{    return _dataArray[section];}-(UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{    UITableViewCell * cell = [tableView dequeueReusableCellWithIdentifier:identifier];    //使用判断创建cell/*   if(cell == nil){        cell = [[UITableViewCell alloc]initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:identifier;    }*/    //取出分区对应的数组    NSArray * array = [_dataDictionary objectForKey:_dataArray[indexPath.section]];    NSLog(@"82-------%@",array);    //取出具体的字典(行)    NSDictionary * dictionary = array[indexPath.row];    NSLog(@"85-------%@",dictionary);    //完成model赋值    Person * per = [Person new];    //kvc    [per setValuesForKeysWithDictionary:dictionary];    cell.textLabel.text = per.name;    cell.imageView.image = [UIImage imageNamed:per.image];            return cell;}-(void)addTableView{    self.tableView = [[UITableView alloc]initWithFrame:[UIScreen mainScreen].bounds style:UITableViewStyleGrouped];    _tableView.delegate = self;    _tableView.dataSource = self;    _tableView.rowHeight = 60;    //注册,创建cell不在使用判断,直接可以使用iOS_6以后的新方法    [self.tableView registerClass:[UITableViewCell class] forCellReuseIdentifier:identifier];    [self.view addSubview:_tableView];}-(NSArray *)sectionIndexTitlesForTableView:(UITableView *)tableView{    return _dataArray;}- (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