iOS UITableView 拖动排序实现代码

 // ViewController.m// JRTableView删除//// Created by jerehedu on 15/6/11.// Copyright (c) 2015年 jerehedu. All rights reserved.//#import "ViewController.h"#import "Goods.h"@interface ViewController ()<UITableViewDataSource, UITableViewDelegate>{  UITableView *_tableView; //列表  NSMutableArray *_goodsAry; //商品数组  UIButton *_editBtn; //编辑按钮}@end@implementation ViewController- (void)viewDidLoad {  [super viewDidLoad];  //添加标题  UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 20, self.view.frame.size.width, 44)];  titleLabel.text = @"购物车";  titleLabel.textAlignment = NSTextAlignmentCenter;  titleLabel.backgroundColor = [UIColor redColor];  titleLabel.textColor = [UIColor whiteColor];  [self.view addSubview:titleLabel];  //添加编辑按钮  _editBtn = [UIButton buttonWithType:UIButtonTypeCustom];  _editBtn.frame = CGRectMake(self.view.frame.size.width-60, 25, 50, 34);  [_editBtn setTitle:@"编辑" forState:UIControlStateNormal];  [_editBtn setTitle:@"完成" forState:UIControlStateSelected];  _editBtn.titleLabel.font = [UIFont systemFontOfSize:15];  _editBtn.backgroundColor = [UIColor colorWithRed:0.8 green:0.8 blue:0.8 alpha:0.5];  [self.view addSubview:_editBtn];  [_editBtn addTarget:self action:@selector(clickEditBtn:) forControlEvents:UIControlEventTouchUpInside];  //添加tableview  _tableView = [[UITableView alloc] initWithFrame:CGRectMake(0, 64, self.view.frame.size.width, self.view.frame.size.height-64)];  _tableView.dataSource = self;  _tableView.delegate = self;  [self.view addSubview:_tableView];  //取数据  NSArray *ary = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"ShoppingGoodsList" ofType:@"plist"]];  //把数据存到模型对象中，然后把对象存到数组中  _goodsAry = [NSMutableArray array];  for (int i=0; i<ary.count; i++) {    Goods *good = [Goods goodsWithDic:ary[i]];    [_goodsAry addObject:good];  }}#pragma mark 数据源 返回有几行-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{  return _goodsAry.count;}#pragma mark 每行显示内容-(UITableViewCell*)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath{  static NSString *idGood = @"goods";  UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:idGood];  if (cell==nil) {    cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:idGood];  }  Goods *good = _goodsAry[indexPath.row];  cell.imageView.image = [UIImage imageNamed:good.icon];  cell.textLabel.text = good.name;  cell.detailTextLabel.text = good.details;  cell.detailTextLabel.numberOfLines = 6;  cell.detailTextLabel.textColor = [UIColor brownColor];  return cell;}#pragma mark 选中行-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath{  // 取消选中状态  [tableView deselectRowAtIndexPath:indexPath animated:YES];}#pragma mark 设置行高-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath{  return 110;}#pragma mark 点击编辑按钮- (IBAction)clickEditBtn:(UIButton *)sender {  //设置tableview编辑状态  BOOL flag = !_tableView.editing;  [_tableView setEditing:flag animated:YES];  _editBtn.selected = flag;}#pragma mark 选择编辑模式，添加模式很少用,默认是删除-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath{  return UITableViewCellEditingStyleNone;}#pragma mark 排序 当移动了某一行时候会调用//编辑状态下，只要实现这个方法，就能实现拖动排序-(void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath{  // 取出要拖动的模型数据  Goods *goods = _goodsAry[sourceIndexPath.row];  //删除之前行的数据  [_goodsAry removeObject:goods];  // 插入数据到新的位置  [_goodsAry insertObject:goods atIndex:destinationIndexPath.row];}@end