// ViewController.m
// JRTableView刪除
//
// 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; //商品數(shù)組

  UIButton *_editBtn; //編輯按鈕
}
@end

@implementation ViewController

- (void)viewDidLoad {
  [super viewDidLoad];

  //添加標(biāo)題
  UILabel *titleLabel = [[UILabel alloc] initWithFrame:CGRectMake(0, 20, self.view.frame.size.width, 44)];
  titleLabel.text = @"購(gòu)物車";
  titleLabel.textAlignment = NSTextAlignmentCenter;
  titleLabel.backgroundColor = [UIColor redColor];
  titleLabel.textColor = [UIColor whiteColor];
  [self.view addSubview:titleLabel];

  //添加編輯按鈕
  _editBtn = [UIButton buttonWithType:UIButtonTypeCustom];
  _editBtn.frame = CGRectMake(self.view.frame.size.width-60, 25, 50, 34);
  [_editBtn setTitle:@"編輯" 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];

  //取數(shù)據(jù)
  NSArray *ary = [NSArray arrayWithContentsOfFile:[[NSBundle mainBundle] pathForResource:@"ShoppingGoodsList" ofType:@"plist"]];

  //把數(shù)據(jù)存到模型對(duì)象中，然后把對(duì)象存到數(shù)組中
  _goodsAry = [NSMutableArray array];
  for (int i=0; i<ary.count; i++) {
    Goods *good = [Goods goodsWithDic:ary[i]];
    [_goodsAry addObject:good];
  }
}

#pragma mark 數(shù)據(jù)源 返回有幾行
-(NSInteger)tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section
{
  return _goodsAry.count;
}

#pragma mark 每行顯示內(nèi)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 選中行
-(void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath
{
  // 取消選中狀態(tài)
  [tableView deselectRowAtIndexPath:indexPath animated:YES];
}

#pragma mark 設(shè)置行高
-(CGFloat)tableView:(UITableView *)tableView heightForRowAtIndexPath:(NSIndexPath *)indexPath
{
  return 110;
}

#pragma mark 點(diǎn)擊編輯按鈕
- (IBAction)clickEditBtn:(UIButton *)sender {

  //設(shè)置tableview編輯狀態(tài)
  BOOL flag = !_tableView.editing;
  [_tableView setEditing:flag animated:YES];
  _editBtn.selected = flag;
}

#pragma mark 選擇編輯模式，添加模式很少用,默認(rèn)是刪除
-(UITableViewCellEditingStyle)tableView:(UITableView *)tableView editingStyleForRowAtIndexPath:(NSIndexPath *)indexPath
{
  return UITableViewCellEditingStyleNone;
}

#pragma mark 排序 當(dāng)移動(dòng)了某一行時(shí)候會(huì)調(diào)用
//編輯狀態(tài)下，只要實(shí)現(xiàn)這個(gè)方法，就能實(shí)現(xiàn)拖動(dòng)排序
-(void)tableView:(UITableView *)tableView moveRowAtIndexPath:(NSIndexPath *)sourceIndexPath toIndexPath:(NSIndexPath *)destinationIndexPath
{
  // 取出要拖動(dòng)的模型數(shù)據(jù)
  Goods *goods = _goodsAry[sourceIndexPath.row];
  //刪除之前行的數(shù)據(jù)
  [_goodsAry removeObject:goods];
  // 插入數(shù)據(jù)到新的位置
  [_goodsAry insertObject:goods atIndex:destinationIndexPath.row];
}

@end