import "RootViewController.h"

import "Student.h"

@interface RootViewController ()<UITableViewDataSource, UITableViewDelegate>
@property (nonatomic, retain) NSMutableDictionary *stuInfoDic;
@property (nonatomic, retain) UITableView *table;
@end

@implementation RootViewController

• (void)dealloc
  {

  [_stuInfoDic release];
  [super dealloc];

  }

• (void)viewDidLoad {

  [super viewDidLoad];
  // Do any additional setup after loading the view.
  self.view.backgroundColor = [UIColor whiteColor];
  self.navigationItem.title = @"YIem";
  // TableView
  self.table = [[UITableView alloc] initWithFrame:self.view.frame style:UITableViewStylePlain];
  self.table.delegate = self;
  self.table.dataSource = self;
  self.table.rowHeight = 70;
  [self.view addSubview:self.table];
  [_table release];
  [self gatData];
  

warning 编辑 1 - 创建编辑按钮

self.navigationItem.rightBarButtonItem = self.editButtonItem;

}

warning 编辑 2 - 关联tableView编辑功能

• (void)setEditing:(BOOL)editing animated:(BOOL)animated
  {

  [super setEditing:editing animated:animated];
  [self.table setEditing:editing animated:animated];

  }

warning 编辑 3 - 设置是否允许编辑

• (BOOL)tableView:(UITableView )tableView canEditRowAtIndexPath:(NSIndexPath )indexPath
  {
  return YES;
  }

warning 编辑 4 - 设置编辑样式(无/ 删除/ 插入)

• (UITableViewCellEditingStyle)tableView:(UITableView )tableView editingStyleForRowAtIndexPath:(NSIndexPath )indexPath
  {
  // 按区
  // 举例: 前4个区删除样式 中间4各区插入 剩下无状态
  if (indexPath.section < 4) {

  return UITableViewCellEditingStyleDelete;

  }
  if (indexPath.section >= 4 && indexPath.section < 8) {

  return UITableViewCellEditingStyleInsert;

  }
  return UITableViewCellEditingStyleNone;
  }

warning 编辑 5 - 实现编辑逻辑 点击编辑实际功能时触发 并且可以左滑动编辑状态

• (void)tableView:(UITableView )tableView commitEditingStyle:(UITableViewCellEditingStyle)editingStyle forRowAtIndexPath:(nonnull NSIndexPath )indexPath
  {
  NSLog(@"YIEM");

  //// 先操作数据 // 可以放在里面
  NSString *key = [self.stuInfoDic.allKeys objectAtIndex:indexPath.section];
  NSMutableArray *arr = [self.stuInfoDic objectForKey:key];

  // 删除分支
  if (UITableViewCellEditingStyleDelete == editingStyle) {

  //// 先操作数据

  // NSString *key = [self.stuInfoDic.allKeys objectAtIndex:indexPath.section];

// NSMutableArray *arr = [self.stuInfoDic objectForKey:key];

    //    Student *stu = [arr objectAtIndex:indexPath.row];
    // 删除学生信息
    [arr removeObjectAtIndex:indexPath.row];
    
    
    //// 后操作界面
    //    [self.table reloadData]; // 整体刷新
    // 删除界面某一行
    [self.table deleteRowsAtIndexPaths:[NSArray arrayWithObject:indexPath] withRowAnimation:UITableViewRowAnimationLeft];
    // 删除区
    

    
}
// 插入分支
if (UITableViewCellEditingStyleInsert == editingStyle) {
    
    Student *stu = [[Student alloc] init];
    stu.name = @"全❤强";
    stu.phoneNumber = @"101010101010";
    stu.picture = @"image27.jpg";//////
    // 插入数据
    [arr insertObject:stu atIndex:indexPath.row];
    // 操作界面
    [self.table insertRowsAtIndexPaths:@[indexPath] withRowAnimation:UITableViewRowAnimationTop];
    
    
    
}

}